# Cu–Te system

> Cu–Te system: 215 accepted literature values (invariant reaction 78, phase transition 73, crystal structure 35, phase equilibrium 25) and 3 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/CU-TE.html · Markdown: https://data.orchid-project.org/systems/CU-TE.md

215 accepted literature values from 2 paper(s) (experimental 134, model 74, unspecified 7); 3 calculated phase diagram(s). 14 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/CU-TE.json) · [CSV](https://data.orchid-project.org/systems/CU-TE.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#CU-TE) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#CU-TE/CuTe-21Hua.json) · [phases (22)](https://data.orchid-project.org/phases/pages/CU-TE.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/CU-TE.html) · [Markdown](https://data.orchid-project.org/systems/CU-TE.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 134 |
| model | 74 |
| unspecified | 7 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 78 |
| phase transition | 73 |
| phase equilibrium | 25 |
| activity / EMF / Gibbs energy | 4 |
| crystal structure | 35 |

## Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Table: Assessments with a calculated phase diagram

| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| CuTe-21Hua.tdb | D. Huang, R. Han, Y. Wang, T. Ye, J. Alloys Compd., 855, 157373(2021). [doi:10.1016/j.jallcom.2020.157373](https://doi.org/10.1016/j.jallcom.2020.157373) | `7d81feae126f40f42d7eca362aec9c1c5a6cdfb84e45fa9fe7cb8dbff1c1088e` | [viewer](https://orchid-project.org/phase-diagrams/#CU-TE/CuTe-21Hua.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuTe-21Hua.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuTe-21Hua.json) |
| CuTe-22Yu.tdb | S. Yu, J. Wang, D. Cui, S. Chen, Q. Wu, Y. Du, J. Phase Equilib. Diffus., 43, 193-213(2022). [doi:10.1007/s11669-022-00950-z](https://doi.org/10.1007/s11669-022-00950-z) | `1478a3ddfca00a47d3ebfd82ca434e131a8018f272646ee7900c52c5386d40f6` | [viewer](https://orchid-project.org/phase-diagrams/#CU-TE/CuTe-22Yu.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuTe-22Yu.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuTe-22Yu.json) |
| CuTe-23Hut.tdb | Y. Hutabalian, S.-W. Chen, W. Gierlotka, J. Phase Equilib. Diffus., 44, 181-99(2023). [doi:10.1007/s11669-023-01032-4](https://doi.org/10.1007/s11669-023-01032-4) | `849aa90ae59ba1b709ba4cee6d11513b1db42327a15a34284d6163347c68b6ee` | [viewer](https://orchid-project.org/phase-diagrams/#CU-TE/CuTe-23Hut.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuTe-23Hut.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuTe-23Hut.json) |

Table: Calculated three-phase invariants (model, mole fraction of the second component)

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| CuTe-21Hua.tdb | 1379.3 | LIQUID#2 (x(Te) 0.05687) + LIQUID (x(Te) 0.3185) + CU2TE_ZETA (x(Te) 0.33333) |
| CuTe-21Hua.tdb | 1320.23 | FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.03577) + CU2TE_ZETA (x(Te) 0.33333) |
| CuTe-21Hua.tdb | 1185.37 | FCC_A1 (x(Te) 0) + CU2TE_ZETA (x(Te) 0.33333) + CU2TE_EPSILON (x(Te) 0.33333) |
| CuTe-21Hua.tdb | 1185.37 | CU2TE_EPSILON (x(Te) 0.33333) + CU2TE_ZETA (x(Te) 0.33333) + LIQUID (x(Te) 0.42398) |
| CuTe-21Hua.tdb | 922.95 | CU2TE_EPSILON (x(Te) 0.33333) + CU4TE3_BETA (x(Te) 0.42857) + LIQUID (x(Te) 0.48432) |
| CuTe-21Hua.tdb | 874.55 | FCC_A1 (x(Te) 0) + CU2TE_DELTA (x(Te) 0.33333) + CU2TE_EPSILON (x(Te) 0.33333) |
| CuTe-21Hua.tdb | 874.55 | CU2TE_EPSILON (x(Te) 0.33333) + CU2TE_DELTA (x(Te) 0.33333) + CU4TE3_BETA (x(Te) 0.42857) |
| CuTe-21Hua.tdb | 697 | CU4TE3_BETA (x(Te) 0.42857) + CUTE_BETA (x(Te) 0.5) + LIQUID (x(Te) 0.64293) |
| CuTe-21Hua.tdb | 650.02 | CU4TE3_C38 (x(Te) 0.42857) + CU4TE3_BETA (x(Te) 0.42857) + CUTE_BETA (x(Te) 0.5) |
| CuTe-21Hua.tdb | 650.02 | CU2TE_DELTA (x(Te) 0.33333) + CU4TE3_BETA (x(Te) 0.42857) + CU4TE3_C38 (x(Te) 0.42857) |
| CuTe-21Hua.tdb | 625.95 | CU2TE_DELTA (x(Te) 0.33333) + CU2TE_GAMMA (x(Te) 0.33333) + CU4TE3_C38 (x(Te) 0.42857) |
| CuTe-21Hua.tdb | 625.95 | FCC_A1 (x(Te) 0) + CU2TE_GAMMA (x(Te) 0.33333) + CU2TE_DELTA (x(Te) 0.33333) |
| CuTe-21Hua.tdb | 623.38 | CUTE_BETA (x(Te) 0.5) + LIQUID (x(Te) 0.71679) + HEXAGONAL_A8 (x(Te) 1) |
| CuTe-21Hua.tdb | 619.84 | CU4TE3_C38 (x(Te) 0.42857) + CUTE_ALPHA (x(Te) 0.5) + CUTE_BETA (x(Te) 0.5) |
| CuTe-21Hua.tdb | 619.84 | CUTE_ALPHA (x(Te) 0.5) + CUTE_BETA (x(Te) 0.5) + HEXAGONAL_A8 (x(Te) 1) |
| CuTe-21Hua.tdb | 581.65 | CU2TE_BETA (x(Te) 0.33333) + CU2TE_GAMMA (x(Te) 0.33333) + CU4TE3_C38 (x(Te) 0.42857) |
| CuTe-21Hua.tdb | 581.65 | FCC_A1 (x(Te) 0) + CU2TE_GAMMA (x(Te) 0.33333) + CU2TE_BETA (x(Te) 0.33333) |
| CuTe-21Hua.tdb | 459.85 | CU2TE_BETA (x(Te) 0.33333) + CU2TE_ALPHA (x(Te) 0.33333) + CU4TE3_C38 (x(Te) 0.42857) |
| CuTe-21Hua.tdb | 459.85 | FCC_A1 (x(Te) 0) + CU2TE_ALPHA (x(Te) 0.33333) + CU2TE_BETA (x(Te) 0.33333) |
| CuTe-22Yu.tdb | 1359.4 | LIQUID#2 (x(Te) 0.05227) + LIQUID (x(Te) 0.30321) + CU2TE_ZETA (x(Te) 0.33333) |
| CuTe-22Yu.tdb | 1320.33 | FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.03681) + CU2TE_ZETA (x(Te) 0.33333) |
| CuTe-22Yu.tdb | 1148.37 | FCC_A1 (x(Te) 0) + CU2TE_ZETA (x(Te) 0.33333) + CU2TE_EPSILON (x(Te) 0.33333) |
| CuTe-22Yu.tdb | 1148.37 | CU2TE_EPSILON (x(Te) 0.33333) + CU2TE_ZETA (x(Te) 0.33333) + LIQUID (x(Te) 0.40938) |
| CuTe-22Yu.tdb | 1075.98 | CU2TE_EPSILON (x(Te) 0.33333) + CU3TE2 (x(Te) 0.37) + LIQUID (x(Te) 0.42442) |
| CuTe-22Yu.tdb | 919.44 | CU3TE2 (x(Te) 0.37) + CU4TE3_BETA (x(Te) 0.42857) + LIQUID (x(Te) 0.46134) |
| CuTe-22Yu.tdb | 917.99 | CU2TE_EPSILON (x(Te) 0.33333) + CU3TE2 (x(Te) 0.37) + CU4TE3_BETA (x(Te) 0.42857) |
| CuTe-22Yu.tdb | 874.73 | FCC_A1 (x(Te) 0) + CU2TE_DELTA (x(Te) 0.33333) + CU2TE_EPSILON (x(Te) 0.33333) |
| CuTe-22Yu.tdb | 874.73 | CU2TE_DELTA (x(Te) 0.33333) + CU2TE_EPSILON (x(Te) 0.33333) + CU4TE3_BETA (x(Te) 0.42857) |
| CuTe-22Yu.tdb | 693.7 | CU4TE3_BETA (x(Te) 0.42857) + CUTE_BETA (x(Te) 0.5) + LIQUID (x(Te) 0.63201) |
| CuTe-22Yu.tdb | 650.03 | CU4TE3_C38 (x(Te) 0.42857) + CU4TE3_BETA (x(Te) 0.42857) + CUTE_BETA (x(Te) 0.5) |
| CuTe-22Yu.tdb | 650.03 | CU2TE_DELTA (x(Te) 0.33333) + CU4TE3_C38 (x(Te) 0.42857) + CU4TE3_BETA (x(Te) 0.42857) |
| CuTe-22Yu.tdb | 624.76 | FCC_A1 (x(Te) 0) + CU2TE_GAMMA (x(Te) 0.33333) + CU2TE_DELTA (x(Te) 0.33333) |
| CuTe-22Yu.tdb | 624.76 | CU2TE_GAMMA (x(Te) 0.33333) + CU2TE_DELTA (x(Te) 0.33333) + CU4TE3_C38 (x(Te) 0.42857) |
| CuTe-22Yu.tdb | 621.79 | CUTE_BETA (x(Te) 0.5) + LIQUID (x(Te) 0.71811) + HEXAGONAL_A8 (x(Te) 1) |
| CuTe-22Yu.tdb | 619.19 | CU4TE3_C38 (x(Te) 0.42857) + CUTE_ALPHA (x(Te) 0.5) + CUTE_BETA (x(Te) 0.5) |
| CuTe-22Yu.tdb | 619.19 | CUTE_ALPHA (x(Te) 0.5) + CUTE_BETA (x(Te) 0.5) + HEXAGONAL_A8 (x(Te) 1) |
| CuTe-22Yu.tdb | 617.98 | CU2TE_GAMMA (x(Te) 0.33333) + CU2TE_IOTA (x(Te) 0.357) + CU4TE3_C38 (x(Te) 0.42857) |
| CuTe-22Yu.tdb | 593.05 | CU2TE_GAMMA (x(Te) 0.33333) + CU2TE_ETA (x(Te) 0.345) + CU2TE_IOTA (x(Te) 0.357) |
| CuTe-22Yu.tdb | 582.19 | FCC_A1 (x(Te) 0) + CU2TE_GAMMA (x(Te) 0.33333) + CU2TE_BETA (x(Te) 0.33333) |
| CuTe-22Yu.tdb | 582.19 | CU2TE_GAMMA (x(Te) 0.33333) + CU2TE_BETA (x(Te) 0.33333) + CU2TE_ETA (x(Te) 0.345) |
| CuTe-22Yu.tdb | 542.88 | CU2TE_IOTA (x(Te) 0.357) + CU7TE4 (x(Te) 0.36) + CU4TE3_C38 (x(Te) 0.42857) |
| CuTe-22Yu.tdb | 520 | CU2TE_KAPPA (x(Te) 0.357) + CU2TE_IOTA (x(Te) 0.357) + CU7TE4 (x(Te) 0.36) |
| CuTe-22Yu.tdb | 520 | CU2TE_ETA (x(Te) 0.345) + CU2TE_KAPPA (x(Te) 0.357) + CU2TE_IOTA (x(Te) 0.357) |
| CuTe-22Yu.tdb | 517.99 | CU2TE_ETA (x(Te) 0.345) + CU2TE_LAMBDA (x(Te) 0.354) + CU2TE_KAPPA (x(Te) 0.357) |
| CuTe-22Yu.tdb | 492.8 | CU2TE_LAMBDA (x(Te) 0.354) + CU2TE_KAPPA (x(Te) 0.357) + CU7TE4 (x(Te) 0.36) |
| CuTe-22Yu.tdb | 459.12 | FCC_A1 (x(Te) 0) + CU2TE_ALPHA (x(Te) 0.33333) + CU2TE_BETA (x(Te) 0.33333) |
| CuTe-22Yu.tdb | 459.12 | CU2TE_ALPHA (x(Te) 0.33333) + CU2TE_BETA (x(Te) 0.33333) + CU2TE_ETA (x(Te) 0.345) |
| CuTe-22Yu.tdb | 450 | CU2TE_ALPHA (x(Te) 0.33333) + CU2TE_THETA (x(Te) 0.345) + CU2TE_ETA (x(Te) 0.345) |
| CuTe-23Hut.tdb | 1368.88 | LIQUID#2 (x(Te) 0.05436) + LIQUID (x(Te) 0.32005) + CU2TE_BETA (x(Te) 0.33382) |
| CuTe-23Hut.tdb | 1319.51 | FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.03654) + CU2TE_BETA (x(Te) 0.33368) |
| CuTe-23Hut.tdb | 1058.31 | CU2TE_BETA (x(Te) 0.35259) + CU4TE3_BETA (x(Te) 0.3893) + LIQUID (x(Te) 0.46388) |
| CuTe-23Hut.tdb | 692.55 | CU4TE3_BETA (x(Te) 0.42358) + CUTE_BETA (x(Te) 0.5) + LIQUID (x(Te) 0.64803) |
| CuTe-23Hut.tdb | 684.29 | FCC_A1 (x(Te) 0) + CU2TE_ALPHA (x(Te) 0.33333) + CU2TE_BETA (x(Te) 0.33334) |
| CuTe-23Hut.tdb | 684.29 | FCC_A1 (x(Te) 0) + CU2TE_ALPHA (x(Te) 0.33333) + CU2TE_BETA (x(Te) 0.33334) |
| CuTe-23Hut.tdb | 645.4 | CU2TE_ALPHA (x(Te) 0.34366) + CU2TE_BETA (x(Te) 0.3551) + CU4TE3_BETA (x(Te) 0.4092) |
| CuTe-23Hut.tdb | 623.38 | CUTE_BETA (x(Te) 0.5) + LIQUID (x(Te) 0.71679) + HEXAGONAL_A8 (x(Te) 1) |
| CuTe-23Hut.tdb | 619.84 | CU4TE3_BETA (x(Te) 0.42404) + CUTE_ALPHA (x(Te) 0.5) + CUTE_BETA (x(Te) 0.5) |
| CuTe-23Hut.tdb | 619.84 | CUTE_ALPHA (x(Te) 0.5) + CUTE_BETA (x(Te) 0.5) + HEXAGONAL_A8 (x(Te) 1) |
| CuTe-23Hut.tdb | 597.45 | CU4TE3_BETA (x(Te) 0.42349) + CU4TE3_C38 (x(Te) 0.42857) + CUTE_ALPHA (x(Te) 0.5) |
| CuTe-23Hut.tdb | 588.49 | CU2TE_ALPHA (x(Te) 0.36072) + CU4TE3_BETA (x(Te) 0.41637) + CU4TE3_C38 (x(Te) 0.42857) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/CU/CU-TE.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/CU/CU-TE.json) · [CALPHAD hull CuTe-21Hua](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-TE--CuTe-21Hua.json) · [CALPHAD hull CuTe-22Yu](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-TE--CuTe-22Yu.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Cu–Te system (78)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1423.05 | L1 ↔ L2 + ζ-Cu2Te | L1: Te 0.316; L2: Te 0.058; ζ-Cu2Te: Te 0.333 | unspecified | [1] Huang 2021 | Table 4, p. 11, row 2; `ORC-UTEYKSO3RH` |  |
| 1388 | congruent melting: L1 -> ζCu2Te | L1: Te 0.333; ζCu2Te: Te 0.333 | experimental | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 3; `ORC-N6OTP7FFGO` |  |
| 1387.2 | congruent melting: L1 -> ζCu2Te | L1: Te 0.333; ζCu2Te: Te 0.333 | model | [2] Yu 2022 | Table 4, p. 9, row 1; `ORC-QR672LZGWR` |  |
| 1384.5 | congruent melting: L1 -> ζCu2Te | L1: Te 0.333; ζCu2Te: Te 0.333 | model | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 2; `ORC-K5HT2XCVSS` |  |
| 1379.3 | monotectic: L1 -> ζCu2Te + L2 | L1: Te 0.316; ζCu2Te: Te 0.333; L2: Te 0.058 | model | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 5; `ORC-N53RAFJ66C` |  |
| 1365.15 | L1 ↔ L2 + ζ-Cu2Te | L1: Te 0.29; L2: Te 0.05; ζ-Cu2Te: Te 0.333 | model | [1] Huang 2021; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 11, row 4; `ORC-RH5A7END64` |  |
| 1365 | monotectic: L1 -> ζCu2Te + L2 | L1: Te 0.29; ζCu2Te: Te 0.33; L2: Te 0.05 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 7; `ORC-5UWAJWR5C4` |  |
| 1359.3 | monotectic: L1 -> ζCu2Te + L2 | L1: Te 0.303; ζCu2Te: Te 0.333; L2: Te 0.052 | model | [2] Yu 2022 | Table 4, p. 9, row 4; `ORC-HQWE2KGECU` |  |
| 1325.15 | L2 ↔ (Cu) + ζ-Cu2Te | L2: Te 0.046; (Cu): Te 7.000e-4; ζ-Cu2Te: Te 0.333 | model | [1] Huang 2021; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 11, row 8; `ORC-27ZO7U2HWB` |  |
| 1325 | eutectic: L2 -> FCC + ζCu2Te | L2: Te 0.046; FCC: Te 0; ζCu2Te: Te 0.333 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 11; `ORC-ULMRQVMPB2` |  |
| 1324.35 | L1 ↔ L2 + ζ-Cu2Te | ζ-Cu2Te: Cu 0.666667, Te 0.333333 | experimental | [1] Huang 2021 | Table 4, p. 11, row 1; `ORC-EZ3UPJ6VN5` |  |
| 1324.2 | monotectic: L1 -> ζCu2Te + L2 | ζCu2Te: Cu 0.666667, Te 0.333333 | experimental | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 6; `ORC-5DFVCDZ5EX` |  |
| 1320.45 | L2 ↔ (Cu) + ζ-Cu2Te | L2: Te 0.035; (Cu): Te 0; ζ-Cu2Te: Te 0.333 | unspecified | [1] Huang 2021 | Table 4, p. 11, row 6; `ORC-HN5ZGYFA3P` |  |
| 1320.3 | eutectic: L2 -> FCC + ζCu2Te | L2: Te 0.037; FCC: Te 0; ζCu2Te: Te 0.333 | model | [2] Yu 2022 | Table 4, p. 9, row 8; `ORC-42Z65UPLSF` |  |
| 1320.3 | eutectic: L2 -> FCC + ζCu2Te | L2: Te 0.035; FCC: Te 0; ζCu2Te: Te 0.333 | model | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 9; `ORC-SGTCODUKH2` |  |
| 1307.15 | L1 ↔ L2 + ζ-Cu2Te | ζ-Cu2Te: Cu 0.666667, Te 0.333333 | experimental | [1] Huang 2021; _cites Chikashige 1907_ [doi](https://doi.org/10.1002/zaac.19070540106) | Table 4, p. 11, row 3; `ORC-OCQYV7ZRDV` |  |
| 1306.15 | L2 ↔ (Cu) + ζ-Cu2Te | ζ-Cu2Te: Cu 0.666667, Te 0.333333 | experimental | [1] Huang 2021; _cites Chikashige 1907_ [doi](https://doi.org/10.1002/zaac.19070540106) | Table 4, p. 11, row 7; `ORC-YZUSFS3LPS` |  |
| 1291.95 | L2 ↔ (Cu) + ζ-Cu2Te | ζ-Cu2Te: Cu 0.666667, Te 0.333333 | experimental | [1] Huang 2021 | Table 4, p. 11, row 5; `ORC-AVI3LT5Q4H` |  |
| 1291.8 | eutectic: L2 -> FCC + ζCu2Te | ζCu2Te: Cu 0.666667, Te 0.333333 | experimental | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 10; `ORC-WFMEI43H7G` |  |
| 1076.7 | εCu2Te + L1 -> Cu0.63Te0.37 | εCu2Te: Te 0.333; L1: Te 0.424; Cu0.63Te0.37: Te 0.37 | model | [2] Yu 2022 | Table 4, p. 9, row 45; `ORC-2652PBMWJW` |  |
| 1076 | εCu2Te + L1 -> Cu0.63Te0.37 | εCu2Te: Te 0.333; L1: Te 0.43; Cu0.63Te0.37: Te 0.37 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 46; `ORC-BNYN4QVATS` |  |
| 922.95 | L + ε-Cu2Te ↔ H-Cu4Te3 | L: Te 0.491; ε-Cu2Te: Te 0.333; H-Cu4Te3: Te 0.429 | unspecified | [1] Huang 2021 | Table 4, p. 11, row 10; `ORC-MMLOETMERC` |  |
| 922.8 | L1 + εCu2Te -> βCu4Te3 | L1: Te 0.491; εCu2Te: Te 0.333; βCu4Te3: Te 0.429 | model | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 13; `ORC-LDW4667OEH` |  |
| 920.25 | L + ε-Cu2Te ↔ H-Cu4Te3 | ε-Cu2Te: Cu 0.666667, Te 0.333333; H-Cu4Te3: Cu 0.571429, Te 0.428571 | experimental | [1] Huang 2021 | Table 4, p. 11, row 9; `ORC-JJHLSQGNU5` |  |
| 920.15 | L + ε-Cu2Te ↔ H-Cu4Te3 | L: Te 0.47; ε-Cu2Te: Te 0.41; H-Cu4Te3: Te 0.41 | model | [1] Huang 2021; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 11, row 13; `ORC-HIL7Q3IWCT` |  |
| 920.1 | L1 + εCu2Te -> βCu4Te3 | εCu2Te: Cu 0.666667, Te 0.333333; βCu4Te3: Cu 0.571429, Te 0.428571 | experimental | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 14; `ORC-V4BLTC2OBF` |  |
| 920 | Cu0.63Te0.37 + L1 -> βCu4Te3 | Cu0.63Te0.37: Te 0.37; L1: Te 0.47; βCu4Te3: Te 0.429 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 48; `ORC-6KAJCVFIRL` |  |
| 920 | L1 + εCu2Te -> βCu4Te3 | L1: Te 0.47; εCu2Te: Te 0.41; βCu4Te3: Te 0.41 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 15; `ORC-IVG2W3Y6DA` |  |
| 919.5 | L1 + εCu2Te -> βCu4Te3 | L1: Te 0.461; εCu2Te: Te 0.337; βCu4Te3: Te 0.429 | model | [2] Yu 2022 | Table 4, p. 9, row 12; `ORC-AJSV2RHVGV` |  |
| 917.7 | Cu0.63Te0.37 + L1 -> βCu4Te3 | Cu0.63Te0.37: Te 0.37; L1: Te 0.461; βCu4Te3: Te 0.429 | model | [2] Yu 2022 | Table 4, p. 9, row 47; `ORC-JAGJ5F3Z3D` |  |
| 903.15 | L + ε-Cu2Te ↔ H-Cu4Te3 | ε-Cu2Te: Cu 0.666667, Te 0.333333; H-Cu4Te3: Cu 0.571429, Te 0.428571 | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 4, p. 11, row 12; `ORC-RCEYJGIW7B` |  |
| 896.15 | L + ε-Cu2Te ↔ H-Cu4Te3 | ε-Cu2Te: Cu 0.666667, Te 0.333333; H-Cu4Te3: Cu 0.571429, Te 0.428571 | experimental | [1] Huang 2021; _cites Chikashige 1907_ [doi](https://doi.org/10.1002/zaac.19070540106) | Table 4, p. 11, row 11; `ORC-RY6D3QU2VP` |  |
| 698.15 | L + H-Cu4Te3 ↔ H-CuTe | L: Te 0.67; H-Cu4Te3: Te 0.42; H-CuTe: Te 0.5 | model | [1] Huang 2021; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 11, row 22; `ORC-2UAJZ3NPW5` |  |
| 698 | L1 + βCu4Te3 -> βCuTe | L1: Te 0.67; βCu4Te3: Te 0.42; βCuTe: Te 0.5 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 22; `ORC-BRSPTJ6PVE` |  |
| 693.95 | L + H-Cu4Te3 ↔ H-CuTe | H-Cu4Te3: Cu 0.571429, Te 0.428571; H-CuTe: Cu 0.5, Te 0.5 | experimental | [1] Huang 2021 | Table 4, p. 11, row 19; `ORC-KDZLFFSARW` |  |
| 693.9 | L1 + βCu4Te3 -> βCuTe | βCu4Te3: Cu 0.571429, Te 0.428571; βCuTe: Cu 0.5, Te 0.5 | experimental | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 21; `ORC-CCHTTBCJDT` |  |
| 693.7 | L1 + βCu4Te3 -> βCuTe | L1: Te 0.632; βCu4Te3: Te 0.429; βCuTe: Te 0.5 | model | [2] Yu 2022 | Table 4, p. 9, row 19; `ORC-Z3SO36IUES` |  |
| 690.65 | L + H-Cu4Te3 ↔ H-CuTe | L: Te 0.642; H-Cu4Te3: Te 0.429; H-CuTe: Te 0.5 | unspecified | [1] Huang 2021 | Table 4, p. 11, row 20; `ORC-GBSKRDXMKQ` |  |
| 690.5 | L1 + βCu4Te3 -> βCuTe | L1: Te 0.642; βCu4Te3: Te 0.429; βCuTe: Te 0.5 | model | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 20; `ORC-I4UJNPTSSS` |  |
| 688.15 | L + H-Cu4Te3 ↔ H-CuTe | H-Cu4Te3: Cu 0.571429, Te 0.428571; H-CuTe: Cu 0.5, Te 0.5 | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 4, p. 11, row 21; `ORC-25QBW6GQEB` |  |
| 652.65 | polymorphic: H-Cu4Te3 ↔ L-Cu4Te3 | H-Cu4Te3: Cu 0.571429, Te 0.428571; L-Cu4Te3: Cu 0.571429, Te 0.428571 | experimental | [1] Huang 2021 | Table 4, p. 11, row 14; `ORC-6KVSD6S5RG` |  |
| 652.5 | polymorphic: αCu4Te3 -> βCu4Te3 | αCu4Te3: Cu 0.571429, Te 0.428571; βCu4Te3: Cu 0.571429, Te 0.428571 | experimental | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 18; `ORC-47FPJ76GZ7` |  |
| 650.05 | polymorphic: H-Cu4Te3 ↔ L-Cu4Te3 | H-Cu4Te3: Te 0.429; L-Cu4Te3: Te 0.429 | unspecified | [1] Huang 2021 | Table 4, p. 11, row 15; `ORC-DKP63GDDYU` |  |
| 650 | polymorphic: αCu4Te3 -> βCu4Te3 | αCu4Te3: Te 0.429; βCu4Te3: Te 0.429 | model | [2] Yu 2022 | Table 4, p. 9, row 16; `ORC-V22QVHPTVU` |  |
| 649.9 | polymorphic: αCu4Te3 -> βCu4Te3 | αCu4Te3: Te 0.429; βCu4Te3: Te 0.429 | model | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 17; `ORC-QFXAGGX3DZ` |  |
| 648.15 | polymorphic: H-Cu4Te3 ↔ L-Cu4Te3 | H-Cu4Te3: Cu 0.571429, Te 0.428571; L-Cu4Te3: Cu 0.571429, Te 0.428571 | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 4, p. 11, row 17; `ORC-AI53BXU3B2` |  |
| 638.15 | polymorphic: H-Cu4Te3 ↔ L-Cu4Te3 | H-Cu4Te3: Te 0.415; L-Cu4Te3: Te 0.415 | model | [1] Huang 2021; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 11, row 18; `ORC-C5KBJVCHPM` |  |
| 638.15 | polymorphic: H-Cu4Te3 ↔ L-Cu4Te3 | H-Cu4Te3: Cu 0.571429, Te 0.428571; L-Cu4Te3: Cu 0.571429, Te 0.428571 | experimental | [1] Huang 2021; _cites Chikashige 1907_ [doi](https://doi.org/10.1002/zaac.19070540106) | Table 4, p. 11, row 16; `ORC-INGKBNULQ2` |  |
| 623.15 | L ↔ H-CuTe + (Te) | H-CuTe: Cu 0.5, Te 0.5 | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 4, p. 11, row 26; `ORC-IFKFEAIAGA` |  |
| 622.85 | L ↔ H-CuTe + (Te) | L: Te 0.71; H-CuTe: Cu 0.5, Te 0.5 | experimental | [1] Huang 2021 | Table 4, p. 11, row 23; `ORC-LK3I3DYKIP` |  |
| 622.7 | eutectic: L1 -> HEX + βCuTe | βCuTe: Cu 0.5, Te 0.5 | experimental | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 25; `ORC-GKYGAE6FW5` |  |
| 622.25 | L ↔ H-CuTe + (Te) | L: Te 0.711; H-CuTe: Te 0.5; (Te): Te 1 | unspecified | [1] Huang 2021 | Table 4, p. 11, row 24; `ORC-TS7L3EUH3Q` |  |
| 622.1 | eutectic: L1 -> HEX + βCuTe | L1: Te 0.711; HEX: Te 1; βCuTe: Te 0.5 | model | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 24; `ORC-AG6NQT72AQ` |  |
| 621.8 | eutectic: L1 -> HEX + βCuTe | L1: Te 0.718; HEX: Te 1; βCuTe: Te 0.5 | model | [2] Yu 2022 | Table 4, p. 9, row 23; `ORC-FYCFCXWBDL` |  |
| 619.85 | polymorphic: H-CuTe ↔ L-CuTe | H-CuTe: Te 0.5; L-CuTe: Te 0.5 | unspecified | [1] Huang 2021 | Table 4, p. 11, row 29; `ORC-P2FT6ZR24T` |  |
| 619.7 | polymorphic: αCuTe -> βCuTe | αCuTe: Te 0.711; βCuTe: Te 1 | model | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 28; `ORC-XQG4AGBFXD` |  |
| 619.05 | polymorphic: H-CuTe ↔ L-CuTe | H-CuTe: Cu 0.5, Te 0.5; L-CuTe: Cu 0.5, Te 0.5 | experimental | [1] Huang 2021 | Table 4, p. 11, row 28; `ORC-GGUPFCFGJY` |  |
| 619 | polymorphic: αCuTe -> βCuTe | αCuTe: Te 0.5; βCuTe: Te 0.5 | model | [2] Yu 2022 | Table 4, p. 9, row 27; `ORC-POCNVGPQOB` |  |
| 618.9 | polymorphic: αCuTe -> βCuTe | αCuTe: Cu 0.5, Te 0.5; βCuTe: Cu 0.5, Te 0.5 | experimental | [2] Yu 2022; _cites Huang 2020_ [doi](https://doi.org/10.1016/j.jallcom.2020.157373) | Table 4, p. 9, row 29; `ORC-BWI5LKTWZZ` |  |
| 618 | ιCu2Te -> γCu2Te + αCu4Te3 | ιCu2Te: Te 0.357; γCu2Te: Te 0.333; αCu4Te3: Te 0.429 | model | [2] Yu 2022 | Table 4, p. 9, row 43; `ORC-5RK2PEGCGX` |  |
| 618 | ιCu2Te -> γCu2Te + αCu4Te3 | ιCu2Te: Te 0.357; γCu2Te: Te 0.333; αCu4Te3: Te 0.429 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 44; `ORC-NSGUC3FLRD` |  |
| 617.15 | L ↔ H-CuTe + (Te) | L: Cu 0.291421, Te 0.708579; H-CuTe: Cu 0.5, Te 0.5 | experimental | [1] Huang 2021; _cites Chikashige 1907_ [doi](https://doi.org/10.1002/zaac.19070540106) | Table 4, p. 11, row 25; `ORC-4YVEV3PPR4` |  |
| 613.15 | polymorphic: H-CuTe ↔ L-CuTe | H-CuTe: Cu 0.5, Te 0.5; L-CuTe: Cu 0.5, Te 0.5 | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 4, p. 11, row 30; `ORC-BAR6DN4RDZ` |  |
| 613.15 | L ↔ H-CuTe + (Te) | L: Te 0.71; H-CuTe: Te 0.5; (Te): Te 1 | model | [1] Huang 2021; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 11, row 27; `ORC-OAJSGTQA4N` |  |
| 613 | eutectic: L1 -> HEX + βCuTe | L1: Te 0.71; HEX: Te 1; βCuTe: Te 0.5 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 26; `ORC-2RJDUWH7DC` |  |
| 613 | polymorphic: αCuTe -> βCuTe | αCuTe: Cu 0.5, Te 0.5; βCuTe: Cu 0.5, Te 0.5 | experimental | [2] Yu 2022; _cites Koneshova 2001_ | Table 4, p. 9, row 30; `ORC-5FBW4XWG6P` |  |
| 593 | ηCu2Te -> γCu2Te +ιCu2Te | ηCu2Te: Te 0.345; γCu2Te: Te 0.333; ιCu2Te: Te 0.357 | model | [2] Yu 2022 | Table 4, p. 9, row 41; `ORC-DEITSZCCRC` |  |
| 593 | ηCu2Te -> γCu2Te +ιCu2Te | ηCu2Te: Te 0.345; γCu2Te: Te 0.333; ιCu2Te: Te 0.357 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 42; `ORC-KXP4BGORKC` |  |
| 543 | μCu2Te -> ιCu2Te + αCu4Te3 | μCu2Te: Te 0.36; ιCu2Te: Te 0.357; αCu4Te3: Te 0.429 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 36; `ORC-7PMLSYPTQU` |  |
| 543 | μCu2Te -> ιCu2Te + αCu4Te3 | μCu2Te: Te 0.36; ιCu2Te: Te 0.357; αCu4Te3: Te 0.429 | model | [2] Yu 2022 | Table 4, p. 9, row 35; `ORC-K5ZLMU4H4A` |  |
| 520 | polymorphic: κCu2Te -> ιCu2Te | κCu2Te: Te 0.357; ιCu2Te: Te 0.357 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 40; `ORC-2KPTPWJ4AS` |  |
| 520 | polymorphic: κCu2Te -> ιCu2Te | κCu2Te: Te 0.357; ιCu2Te: Te 0.357 | model | [2] Yu 2022 | Table 4, p. 9, row 39; `ORC-6B6PFGXSXZ` |  |
| 518 | λCu2Te -> ηCu2Te + κCu2Te | λCu2Te: Te 0.354; ηCu2Te: Te 0.345; κCu2Te: Te 0.357 | model | [2] Yu 2022 | Table 4, p. 9, row 33; `ORC-NNP7S2ZRTQ` |  |
| 518 | λCu2Te -> ηCu2Te + κCu2Te | λCu2Te: Te 0.354; ηCu2Te: Te 0.345; κCu2Te: Te 0.357 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 34; `ORC-PA6F7DGBLF` |  |
| 493 | κCu2Te -> λCu2Te + μCu2Te | κCu2Te: Te 0.357; λCu2Te: Te 0.354; μCu2Te: Te 0.36 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 38; `ORC-UFTDTWRJG7` |  |
| 492.8 | κCu2Te -> λCu2Te + μCu2Te | κCu2Te: Te 0.357; λCu2Te: Te 0.354; μCu2Te: Te 0.36 | model | [2] Yu 2022 | Table 4, p. 9, row 37; `ORC-R7YBA754TO` |  |
| 450 | polymorphic: ηCu2Te -> θCu2Te | ηCu2Te: Te 0.345; θCu2Te: Te 0.345 | model | [2] Yu 2022 | Table 4, p. 9, row 31; `ORC-HDCMA2WS55` |  |
| 450 | polymorphic: ηCu2Te -> θCu2Te | ηCu2Te: Te 0.345; θCu2Te: Te 0.345 | experimental | [2] Yu 2022; _cites Pashinkin 2003_ [doi](https://doi.org/10.1023/a:1024003932461) | Table 4, p. 9, row 32; `ORC-OYSNB6BUPY` |  |

## Other properties

### Phase transition (73)

Table: Phase transition, Cu–Te system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 148.15 K | 148.15 | 3; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Bougnot 1970_ [doi](https://doi.org/10.1016/0025-5408%2870%2990025-5) | Table 1, p. 2, row 9; `ORC-C6PZLOBSJG` |  |
| Phase transition | 248.15 K | 248.15 | 3; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Bougnot 1970_ [doi](https://doi.org/10.1016/0025-5408%2870%2990025-5) | Table 1, p. 2, row 10; `ORC-ZSWVEIQMAK` |  |
| Phase transition | 433.15 K | 433.15 | 14; _alloy: Te 0.333333_ | model | [1] Huang 2021; _cites Ssub6 2017_ | Table 1, p. 2, row 62; `ORC-EQALPSJPGU` |  |
| Phase transition | 433.15 K | 433.15 | 5; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Kubaschewski 1973_ [doi](https://doi.org/10.1002/bbpc.19730770203) | Table 1, p. 2, row 20; `ORC-YFXMGODT44` |  |
| Phase transition | 440.15 K | 440.15 | 6; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mills 1973_ [doi](https://doi.org/10.1016/0040-6031%2873%2985074-9) | Table 1, p. 2, row 25; `ORC-X2KCJJU3CH` |  |
| Phase transition | 445.15 K | 445.15 | 3; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Bougnot 1970_ [doi](https://doi.org/10.1016/0025-5408%2870%2990025-5) | Table 1, p. 2, row 11; `ORC-TKTN6FEPRI` |  |
| Phase transition | 445.15 K | 445.15 | 4; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Guastavino 1973_ [doi](https://doi.org/10.1016/0025-5408%2873%2990078-0) | Table 1, p. 2, row 16; `ORC-VOLR2FCLHB` |  |
| Phase transition | 448.15 K | 448.15 | 9; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Vouroutzis 1989_ [doi](https://doi.org/10.1002/pssa.2211110213) | Table 1, p. 2, row 38; `ORC-EDZKMKPZMH` |  |
| Phase transition | 452.15 K | 452.15 | 10; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Ghoumari-Bouanani 1993_ [doi](https://doi.org/10.1016/0025-5408%2893%2990036-d) | Table 1, p. 2, row 43; `ORC-ELCQQ2BHVU` |  |
| Phase transition | 453.15 K | 453.15 | 11; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 1, p. 2, row 48; `ORC-MNFKO2SL7P` |  |
| Phase transition | 454.15 K | 454.15 | 12; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Qiu 2017_ [doi](https://doi.org/10.1039/c7ra02145c) | Table 1, p. 2, row 53; `ORC-6CDSLI63OJ` |  |
| Phase transition | 457.15 K | 457.15 | 13; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mukherjee 2019_ [doi](https://doi.org/10.1039/c8dt04351e) | Table 1, p. 2, row 57; `ORC-PWZNLC7PO2` |  |
| Phase transition | 459.85 K | 459.85 | 15; _alloy: Te 0.333333_ | experimental | [1] Huang 2021 | Table 1, p. 2, row 67; `ORC-UBM4TKFRAQ` |  |
| Phase transition | 463.15 K | 463.15 | 7; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Tsypin 1974_ | Table 1, p. 2, row 30; `ORC-2XFHH4VRH5` |  |
| Phase transition | 468.15 K | 468.15 | 2; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Stevels 1969_ | Table 1, p. 2, row 5; `ORC-MB4X2A3WVO` |  |
| Phase transition | 497.15 K | 497.15 | 10; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Ghoumari-Bouanani 1993_ [doi](https://doi.org/10.1016/0025-5408%2893%2990036-d) | Table 1, p. 2, row 44; `ORC-NWMXYWKH6T` |  |
| Phase transition | 517.15 K | 517.15 | 13; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mukherjee 2019_ [doi](https://doi.org/10.1039/c8dt04351e) | Table 1, p. 2, row 58; `ORC-BKOZRMSCZJ` |  |
| Phase transition | 526.15 K | 526.15 | 6; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mills 1973_ [doi](https://doi.org/10.1016/0040-6031%2873%2985074-9) | Table 1, p. 2, row 26; `ORC-VCOA7QBBOY` |  |
| Phase transition | 531.15 K | 531.15 | 14; _alloy: Te 0.333333_ | model | [1] Huang 2021; _cites Ssub6 2017_ | Table 1, p. 2, row 63; `ORC-3KSDNN55HJ` |  |
| Phase transition | 531.15 K | 531.15 | 5; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Kubaschewski 1973_ [doi](https://doi.org/10.1002/bbpc.19730770203) | Table 1, p. 2, row 21; `ORC-XT7HGHGZPY` |  |
| Phase transition | 533.15 K | 533.15 | 1; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Gravemann 1956_ | Table 1, p. 2, row 1; `ORC-ZHXK6MXRU4` |  |
| Phase transition | 537.15 K | 537.15 | 3; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Bougnot 1970_ [doi](https://doi.org/10.1016/0025-5408%2870%2990025-5) | Table 1, p. 2, row 12; `ORC-LL6YCCSBAS` |  |
| Phase transition | 538.15 K | 538.15 | 2; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Stevels 1969_ | Table 1, p. 2, row 6; `ORC-N42VI6X3BK` |  |
| Phase transition | 543.15 K | 543.15 | 11; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 1, p. 2, row 49; `ORC-YU5NKOUOAN` |  |
| Phase transition | 548.15 K | 548.15 | 8; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Blachnik 1983_ [doi](https://doi.org/10.1016/0022-4596%2883%2990102-0) | Table 1, p. 2, row 34; `ORC-2K45C5QJE7` |  |
| Phase transition | 548.15 K | 548.15 | 9; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Vouroutzis 1989_ [doi](https://doi.org/10.1002/pssa.2211110213) | Table 1, p. 2, row 39; `ORC-3GXUATP5UA` |  |
| Phase transition | 578.15 K | 578.15 | 3; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Bougnot 1970_ [doi](https://doi.org/10.1016/0025-5408%2870%2990025-5) | Table 1, p. 2, row 13; `ORC-67P3GAHW7A` |  |
| Phase transition | 581.65 K | 581.65 | 15; _alloy: Te 0.333333_ | experimental | [1] Huang 2021 | Table 1, p. 2, row 68; `ORC-CBS47HMSJF` |  |
| Phase transition | 583.15 K | 583.15 | 11; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 1, p. 2, row 50; `ORC-FTQBVMU2TL` |  |
| Phase transition | 583.15 K | 583.15 | 7; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Tsypin 1974_ | Table 1, p. 2, row 31; `ORC-5G2ERTFVW6` |  |
| Phase transition | 585.65 K | 585.65 | 4; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Guastavino 1973_ [doi](https://doi.org/10.1016/0025-5408%2873%2990078-0) | Table 1, p. 2, row 17; `ORC-TYVH6H7LYX` |  |
| Phase transition | 586.15 K | 586.15 | 8; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Blachnik 1983_ [doi](https://doi.org/10.1016/0022-4596%2883%2990102-0) | Table 1, p. 2, row 35; `ORC-L2GKMSBAML` |  |
| Phase transition | 589.15 K | 589.15 | 1; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Gravemann 1956_ | Table 1, p. 2, row 2; `ORC-Z2AOPERHCR` |  |
| Phase transition | 590.15 K | 590.15 | 14; _alloy: Te 0.333333_ | model | [1] Huang 2021; _cites Ssub6 2017_ | Table 1, p. 2, row 64; `ORC-42TQYQERKX` |  |
| Phase transition | 590.15 K | 590.15 | 5; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Kubaschewski 1973_ [doi](https://doi.org/10.1002/bbpc.19730770203) | Table 1, p. 2, row 22; `ORC-3APZV7Y5AK` |  |
| Phase transition | 591.15 K | 591.15 | 10; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Ghoumari-Bouanani 1993_ [doi](https://doi.org/10.1016/0025-5408%2893%2990036-d) | Table 1, p. 2, row 45; `ORC-M6RE25J2ZT` |  |
| Phase transition | 593.15 K | 593.15 | 2; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Stevels 1969_ | Table 1, p. 2, row 7; `ORC-P56GLK4KUT` |  |
| Phase transition | 593.15 K | 593.15 | 9; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Vouroutzis 1989_ [doi](https://doi.org/10.1002/pssa.2211110213) | Table 1, p. 2, row 40; `ORC-QRHU7JQAF7` |  |
| Phase transition | 596.15 K | 596.15 | 13; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mukherjee 2019_ [doi](https://doi.org/10.1039/c8dt04351e) | Table 1, p. 2, row 59; `ORC-DMF2HGBA5Q` |  |
| Phase transition | 597.15 K | 597.15 | 12; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Qiu 2017_ [doi](https://doi.org/10.1039/c7ra02145c) | Table 1, p. 2, row 54; `ORC-PP4P2V2N7J` |  |
| Phase transition | 600.15 K | 600.15 | 6; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mills 1973_ [doi](https://doi.org/10.1016/0040-6031%2873%2985074-9) | Table 1, p. 2, row 27; `ORC-SHVHROIKRV` |  |
| Phase transition | 613.15 K | 613.15 | other | experimental | [1] Huang 2021; _cites Koneshova 2001_ | p. 2; `ORC-MPCMA3VPDF` | “CuTe exhibits an orthorhombic structure from room temperature up to the decomposition temperature in Ref. \[14\], whilst ref. \[15\] Shows that it undergoes a crystallographic transformation at 340 C.” |
| Phase transition | 620.45 K | 620.45 | CuTe | experimental | [1] Huang 2021 | p. 6; `ORC-2MYVVPUFMF.d9b49d` | “The first and second exothermic peaks at 347.3 and 350.7  C in the 1  C∙min1 curve are probably corresponding to the highe and lowetemperature modifications of CuTe and the eutectic reaction of L 4 HeCuTe þ (Te) respectively.” |
| Phase transition | 625.15 K | 625.15 | 6; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mills 1973_ [doi](https://doi.org/10.1016/0040-6031%2873%2985074-9) | Table 1, p. 2, row 28; `ORC-KSAKHGYSWF` |  |
| Phase transition | 625.95 K | 625.95 | 15; _alloy: Te 0.333333_ | experimental | [1] Huang 2021 | Table 1, p. 2, row 69; `ORC-XZH5YW7QRF` |  |
| Phase transition | 627.15 K | 627.15 | 12; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Qiu 2017_ [doi](https://doi.org/10.1039/c7ra02145c) | Table 1, p. 2, row 55; `ORC-6ZZP75LEGL` |  |
| Phase transition | 628.15 K | 628.15 | 10; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Ghoumari-Bouanani 1993_ [doi](https://doi.org/10.1016/0025-5408%2893%2990036-d) | Table 1, p. 2, row 46; `ORC-BV5TOM2MRH` |  |
| Phase transition | 629.15 K | 629.15 | 13; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mukherjee 2019_ [doi](https://doi.org/10.1039/c8dt04351e) | Table 1, p. 2, row 60; `ORC-5SI54EU2CU` |  |
| Phase transition | 633.15 K | 633.15 | 11; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 1, p. 2, row 51; `ORC-FFMGYA2HWD` |  |
| Phase transition | 633.15 K | 633.15 | 14; _alloy: Te 0.333333_ | model | [1] Huang 2021; _cites Ssub6 2017_ | Table 1, p. 2, row 65; `ORC-FESZFKV2AP` |  |
| Phase transition | 633.15 K | 633.15 | 3; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Bougnot 1970_ [doi](https://doi.org/10.1016/0025-5408%2870%2990025-5) | Table 1, p. 2, row 14; `ORC-YWWIQHA4UT` |  |
| Phase transition | 633.15 K | 633.15 | 4; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Guastavino 1973_ [doi](https://doi.org/10.1016/0025-5408%2873%2990078-0) | Table 1, p. 2, row 18; `ORC-QNUU55APHP` |  |
| Phase transition | 633.15 K | 633.15 | 5; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Kubaschewski 1973_ [doi](https://doi.org/10.1002/bbpc.19730770203) | Table 1, p. 2, row 23; `ORC-5GCCB3SDJ6` |  |
| Phase transition | 633.15 K | 633.15 | 7; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Tsypin 1974_ | Table 1, p. 2, row 32; `ORC-FIRPAEXYK2` |  |
| Phase transition | 633.15 K | 633.15 | 8; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Blachnik 1983_ [doi](https://doi.org/10.1016/0022-4596%2883%2990102-0) | Table 1, p. 2, row 36; `ORC-VOABELQN37` |  |
| Phase transition | 635.15 K | 635.15 | 1; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Gravemann 1956_ | Table 1, p. 2, row 3; `ORC-DAIL2YIB25` |  |
| Phase transition | 638.15 K | 638.15 | 9; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Vouroutzis 1989_ [doi](https://doi.org/10.1002/pssa.2211110213) | Table 1, p. 2, row 41; `ORC-43IMPMRWLB` |  |
| Phase transition | 713.15 K | 713.15 | 2; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Stevels 1969_ | Table 1, p. 2, row 8; `ORC-VNV5CTOGQX` |  |
| Phase transition | 725.15 K | 725.15 | 10; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Ghoumari-Bouanani 1993_ [doi](https://doi.org/10.1016/0025-5408%2893%2990036-d) | Table 1, p. 2, row 47; `ORC-SAD2KQVTMZ` |  |
| Phase transition | 748.15 K | 748.15 | 13; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mukherjee 2019_ [doi](https://doi.org/10.1039/c8dt04351e) | Table 1, p. 2, row 61; `ORC-3W4MKHGPKW` |  |
| Phase transition | 750.15 K | 750.15 | 6; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Mills 1973_ [doi](https://doi.org/10.1016/0040-6031%2873%2985074-9) | Table 1, p. 2, row 29; `ORC-V3QDA4EYLE` |  |
| Phase transition | 750.65 K | 750.65 | 3; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Bougnot 1970_ [doi](https://doi.org/10.1016/0025-5408%2870%2990025-5) | Table 1, p. 2, row 15; `ORC-ZWJGRXZK2X` |  |
| Phase transition | 756.15 K | 756.15 | 12; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Qiu 2017_ [doi](https://doi.org/10.1039/c7ra02145c) | Table 1, p. 2, row 56; `ORC-QL2GXBZHPR` |  |
| Phase transition | 765.65 K | 765.65 | 4; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Guastavino 1973_ [doi](https://doi.org/10.1016/0025-5408%2873%2990078-0) | Table 1, p. 2, row 19; `ORC-CJSGF6BGNH` |  |
| Phase transition | 813.15 K | 813.15 | 11; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Koneshova 2001_ | Table 1, p. 2, row 52; `ORC-AW7U5KGB4Q` |  |
| Phase transition | 823.15 K | 823.15 | 7; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Tsypin 1974_ | Table 1, p. 2, row 33; `ORC-FXK2VOOVVD` |  |
| Phase transition | 833.15 K | 833.15 | 1; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Gravemann 1956_ | Table 1, p. 2, row 4; `ORC-S7SRPIAEY3` |  |
| Phase transition | 835.15 K | 835.15 | 5; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Kubaschewski 1973_ [doi](https://doi.org/10.1002/bbpc.19730770203) | Table 1, p. 2, row 24; `ORC-OZHHTCNUDZ` |  |
| Phase transition | 841.15 K | 841.15 | 14; _alloy: Te 0.333333_ | model | [1] Huang 2021; _cites Ssub6 2017_ | Table 1, p. 2, row 66; `ORC-Y3HWRARRHW` |  |
| Phase transition | 848.15 K | 848.15 | 9; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Vouroutzis 1989_ [doi](https://doi.org/10.1002/pssa.2211110213) | Table 1, p. 2, row 42; `ORC-K3VV3ZBJLG` |  |
| Phase transition | 864.15 K | 864.15 | 8; _alloy: Te 0.333333_ | experimental | [1] Huang 2021; _cites Blachnik 1983_ [doi](https://doi.org/10.1016/0022-4596%2883%2990102-0) | Table 1, p. 2, row 37; `ORC-QBTPZ2AUNY` |  |
| Phase transition | 874.55 K | 874.55 | 15; _alloy: Te 0.333333_ | experimental | [1] Huang 2021 | Table 1, p. 2, row 70; `ORC-HBBSTEW4AP` |  |
| Phase transition | 1150.85 K | 1150.85 | 15; _alloy: Te 0.333333_ | experimental | [1] Huang 2021 | Table 1, p. 2, row 71; `ORC-OJO2JDC4LD` |  |

### Phase equilibrium (25)

Table: Phase equilibrium, Cu–Te system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase assemblage |  | 593.15 | (Cu) + Cu2Te; _alloy: Te 0_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 22; `ORC-NJBI3WW74C` |  |
| Phase assemblage |  | 593.15 | Cu2Te + Cu4Te3; _alloy: Te 0.333333_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 32; `ORC-7FTXBAQHIN` |  |
| Phase composition |  |  | (Cu) + Cu2Te; _(Cu): Cu 0.998, Te 0.002; Cu2Te: Cu 0.659, Te 0.341_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 19; `ORC-V2DWBEE5W3` |  |
| Phase composition |  |  | (Cu) + Cu2Te; _(Cu): Cu 0.999, Te 0.001; Cu2Te: Cu 0.665, Te 0.335_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 23; `ORC-WIWJMWDMRA` |  |
| Phase composition |  |  | Cu2Te; _Cu2Te: Cu 0.631, Te 0.369_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 29; `ORC-7YPQCOJ5A6` |  |
| Phase composition |  |  | Cu2Te; _Cu2Te: Cu 0.634, Te 0.366_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 27; `ORC-S3FCJSAU56` |  |
| Phase composition |  |  | CuTe + (Te) + (Te) + CuTe; _CuTe: Cu 0.459, Te 0.541; (Te): Cu 0.059, Te 0.941; (Te) + CuTe: Cu 0.295, Te 0.705_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 9; `ORC-2ML7EGMFQA` |  |
| Phase composition |  |  | CuTe + (Te) + (Te) + CuTe; _CuTe: Cu 0.499, Te 0.501; (Te): Cu 0.025, Te 0.975; (Te) + CuTe: Cu 0.273, Te 0.727_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 7; `ORC-IIORZGNSZJ` |  |
| Phase composition |  |  | CuTe + (Te) + (Te) + CuTe; _CuTe: Cu 0.463, Te 0.537; (Te): Cu 0.007, Te 0.993; (Te) + CuTe: Cu 0.284, Te 0.716_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 11; `ORC-ROVHZWEUOT` |  |
| Phase composition |  |  | CuTe + (Te) + (Te) + CuTe; _CuTe: Cu 0.469, Te 0.531; (Te): Cu 0.007, Te 0.993; (Te) + CuTe: Cu 0.299, Te 0.701_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 13; `ORC-RROWVUBROG` |  |
| Phase composition |  |  | CuTe + (Te) + Cu4Te3 + (Te) + CuTe; _CuTe: Cu 0.481, Te 0.519; (Te): Cu 0.032, Te 0.968; Cu4Te3: Cu 0.565, Te 0.435; (Te) + CuTe: Cu 0.282, Te 0.718_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 5; `ORC-SSKKILY4N4` |  |
| Phase composition |  |  | CuTe + Cu4Te3 + (Te) + CuTe; _CuTe: Cu 0.485, Te 0.515; Cu4Te3: Cu 0.567, Te 0.433; (Te) + CuTe: Cu 0.286, Te 0.714_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 1; `ORC-HGDJ3FCGA5` |  |
| Phase composition |  |  | CuTe + Cu4Te3 + (Te) + CuTe; _CuTe: Cu 0.481, Te 0.519; Cu4Te3: Cu 0.566, Te 0.434; (Te) + CuTe: Cu 0.282, Te 0.718_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 3; `ORC-O2YF4TKSLM` |  |
| Phase composition |  | 593.15 | (Cu) + Cu2Te; _(Cu): Cu 0.001, Te 0.999; Cu2Te: Cu 0.666, Te 0.334_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 20; `ORC-7D6JZ4LBLO` |  |
| Phase composition |  | 593.15 | (Cu) + Cu2Te; _(Cu): Cu 0.001, Te 0.999; Cu2Te: Cu 0.664, Te 0.336_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 24; `ORC-J7WJJ7G4VO` |  |
| Phase composition |  | 593.15 | Cu2Te + Cu4Te3; _Cu2Te: Cu 0.627, Te 0.373; Cu4Te3: Cu 0.588, Te 0.412_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 30; `ORC-7IIKPNKXTG` |  |
| Phase composition |  | 593.15 | Cu4Te3 + CuTe; _Cu4Te3: Cu 0.579, Te 0.421; CuTe: Cu 0.527, Te 0.473_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 16; `ORC-QTVUXU6SUK` |  |
| Phase composition |  | 593.15 | Cu4Te3 + CuTe; _Cu4Te3: Cu 0.578, Te 0.422; CuTe: Cu 0.524, Te 0.476_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 18; `ORC-S3ILWQJOKO` |  |
| Phase composition |  | 593.15 | CuTe + (Te); _CuTe: Cu 0.479, Te 0.521; (Te): Cu 0.009, Te 0.991_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 14; `ORC-AIXCP3DWQJ` |  |
| Phase composition |  | 593.15 | CuTe + (Te); _CuTe: Cu 0.496, Te 0.504; (Te): Cu 0.008, Te 0.992_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 2; `ORC-BREPSZAPLC` |  |
| Phase composition |  | 593.15 | CuTe + (Te); _CuTe: Cu 0.481, Te 0.519; (Te): Cu 0.018, Te 0.982_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 12; `ORC-D3DICCRNGL` |  |
| Phase composition |  | 593.15 | CuTe + (Te); _CuTe: Cu 0.494, Te 0.506; (Te): Cu 0.033, Te 0.967_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 4; `ORC-MKF2IYOX5J` |  |
| Phase composition |  | 593.15 | CuTe + (Te); _CuTe: Cu 0.481, Te 0.519; (Te): Cu 0.008, Te 0.992_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 10; `ORC-MNIBR3DSJ3` |  |
| Phase composition |  | 593.15 | CuTe + (Te); _CuTe: Cu 0.481, Te 0.519; (Te): Cu 0.012, Te 0.988_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 6; `ORC-QIS4FONO5G` |  |
| Phase composition |  | 593.15 | CuTe + (Te); _CuTe: Cu 0.488, Te 0.512; (Te): Cu 0.024, Te 0.976_ | experimental | [1] Huang 2021 | Table 2, p. 3, row 8; `ORC-U2NVMOPEAC` |  |

### Activity / EMF / Gibbs energy (4)

Table: Activity / EMF / Gibbs energy, Cu–Te system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Activity; _printed: a(Te)_ | 0.0226 unspecified | 1473.15 |  | model | [1] Huang 2021 | p. 11; `ORC-LOFSPI7OWB.0ed4c9` | “It should be noticed that a relatively small activity, around 0.0012, at 1200 C and in the composition variation of the miscibility gap of liquid was reported in the work of Azakami and Yazawa \[36\], whereas a result of 0.0226 is finally obtained in this work.” |
| Activity; _printed: a(Te)_ | 0.0012 unspecified | 1473.15 |  | experimental | [1] Huang 2021; _cites Azakami 1976_ [doi](https://doi.org/10.1179/cmq.1976.15.2.111) | p. 11; `ORC-LOFSPI7OWB.6013c4` | “It should be noticed that a relatively small activity, around 0.0012, at 1200 C and in the composition variation of the miscibility gap of liquid was reported in the work of Azakami and Yazawa \[36\], whereas a result of 0.0226 is finally obtained in this work.” |
| EMF | 268.76 mV | 673.15 |  | model | [1] Huang 2021 | p. 11; `ORC-6GC5OFVKHO.892334` | “For example, the computed EMF at 400 C and at the composition Cu4Te3 is 189.41 mV using the present parameters while that by fitting Azakami and Yazawas's dataset \[36\] rises to 268.76 mV, which is much higher than the experimental results of 166e214 mV at 360e435 C.” |
| EMF | 189.41 mV | 673.15 |  | model | [1] Huang 2021 | p. 11; `ORC-6GC5OFVKHO.89df3c` | “For example, the computed EMF at 400 C and at the composition Cu4Te3 is 189.41 mV using the present parameters while that by fitting Azakami and Yazawas's dataset \[36\] rises to 268.76 mV, which is much higher than the experimental results of 166e214 mV at 360e435 C.” |

### Crystal structure (35)

Table: Crystal structure, Cu–Te system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 4.003 Å | 298.15 | Cu0.63Te0.37; _alloy: Te 0.37_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 17; `ORC-7RZCTBYAYL.43e3e4` |  |
| Lattice a | 7.319 Å | 298.15 | αCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 5; `ORC-53AOULQFB3.e41e4e` |  |
| Lattice a | 3.98 Å | 298.15 | αCu4Te3; _alloy: Te 0.428571_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 18; `ORC-CXU5SHNIDB.ba5368` |  |
| Lattice a | 3.16 Å | 298.15 | αCuTe; _alloy: Te 0.5_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 20; `ORC-GQ3RXNKOAK.d1df97` |  |
| Lattice a | 4.227 Å | 298.15 | βCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 6; `ORC-WXC37EYCWD.386464` |  |
| Lattice a | 6.032 Å | 298.15 | βCu4Te3; _alloy: Te 0.428571_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 19; `ORC-XBR6R3MRL7` |  |
| Lattice a | 8.37 Å | 298.15 | γCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 7; `ORC-LTOAVXRUJS.d9d514` |  |
| Lattice a | 4.246 Å | 298.15 | δCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 8; `ORC-RJNQGQTBLQ.97bb5e` |  |
| Lattice a | 6.03 Å | 298.15 | εCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 9; `ORC-AW5ZHP6WGN` |  |
| Lattice a | 7.189 Å | 298.15 | ηCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 11; `ORC-M3I57CJCWF.c6741f` |  |
| Lattice a | 10.136 Å | 298.15 | θCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 12; `ORC-TPC25SXBOQ.156b29` |  |
| Lattice a | 8.453 Å | 298.15 | ιCu2Te | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 13; `ORC-4JOBQNGNQL.2f6595` |  |
| Lattice a | 8.73 Å | 298.15 | κCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 14; `ORC-6HF6BBVJ25.9e7710` |  |
| Lattice a | 8.373 Å | 298.15 | λCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 15; `ORC-TTQVERVTLU.256c39` |  |
| Lattice a | 8.328 Å | 298.15 | μCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 16; `ORC-OL7QM4AHBV.cd383d` |  |
| Lattice b | 3.979 Å | 298.15 | Cu0.63Te0.37; _alloy: Te 0.37_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 17; `ORC-7RZCTBYAYL.ffc0ab` |  |
| Lattice b | 22.236 Å | 298.15 | αCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 5; `ORC-53AOULQFB3.986c83` |  |
| Lattice b | 4.08 Å | 298.15 | αCuTe; _alloy: Te 0.5_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 20; `ORC-GQ3RXNKOAK.3eb6df` |  |
| Lattice b | 7.403 Å | 298.15 | βCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 6; `ORC-WXC37EYCWD.ec6c16` |  |
| Lattice b | 4.187 Å | 298.15 | ηCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 11; `ORC-M3I57CJCWF.469c4a` |  |
| Lattice b | 10.306 Å | 298.15 | θCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 12; `ORC-TPC25SXBOQ.7895c3` |  |
| Lattice b | 14.6 Å | 298.15 | κCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 14; `ORC-6HF6BBVJ25.f9f987` |  |
| Lattice c | 6.11 Å | 298.15 | Cu0.63Te0.37; _alloy: Te 0.37_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 17; `ORC-7RZCTBYAYL.ccf872` |  |
| Lattice c | 36.458 Å | 298.15 | αCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 5; `ORC-53AOULQFB3.2781ef` |  |
| Lattice c | 6.12 Å | 298.15 | αCu4Te3; _alloy: Te 0.428571_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 18; `ORC-CXU5SHNIDB.f7f61b` |  |
| Lattice c | 6.93 Å | 298.15 | αCuTe; _alloy: Te 0.5_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 20; `ORC-GQ3RXNKOAK.b16b8a` |  |
| Lattice c | 7.29 Å | 298.15 | βCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 6; `ORC-WXC37EYCWD.86fe98` |  |
| Lattice c | 21.6 Å | 298.15 | γCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 7; `ORC-LTOAVXRUJS.94a6e5` |  |
| Lattice c | 7.289 Å | 298.15 | δCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 8; `ORC-RJNQGQTBLQ.4697a5` |  |
| Lattice c | 7.207 Å | 298.15 | ηCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 11; `ORC-M3I57CJCWF.973cb5` |  |
| Lattice c | 4.234 Å | 298.15 | θCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 12; `ORC-TPC25SXBOQ.0b7f43` |  |
| Lattice c | 21.793 Å | 298.15 | ιCu2Te | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 13; `ORC-4JOBQNGNQL.57407f` |  |
| Lattice c | 7.199 Å | 298.15 | κCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 14; `ORC-6HF6BBVJ25.610b9e` |  |
| Lattice c | 10.877 Å | 298.15 | λCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 15; `ORC-TTQVERVTLU.22ea28` |  |
| Lattice c | 7.219 Å | 298.15 | μCu2Te; _alloy: Te 0.333333_ | model | [2] Yu 2022; _cites Villars 1991_ | Table 1, p. 3, row 16; `ORC-OL7QM4AHBV.8484d6` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. Dandan Huang, Rumo Han, Yao Wang, Tianfan Ye, The Cu–Te system: Phase relations determination and thermodynamic assessment, Journal of Alloys and Compounds 855, 157373 (2021). [doi:10.1016/j.jallcom.2020.157373](https://doi.org/10.1016/j.jallcom.2020.157373)
2. Shangzhao Yu, Jiong Wang, Dongyu Cui, Shanxiong Chen, Qing Wu, Yong Du, Thermodynamic Modelling of the Te-X (X = Cu, Ga, Li, Sr) Systems, J. Phase Equilib. Diffus. 43, 193-213 (2022). [doi:10.1007/s11669-022-00950-z](https://doi.org/10.1007/s11669-022-00950-z)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0).

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).