# Cu–Se–Te system

> Cu–Se–Te system: 63 accepted literature values (phase equilibrium 55, invariant reaction 8) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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

63 accepted literature values from 1 paper(s) (experimental 55, model 8); 0 calculated phase diagram(s). 2 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-SE-TE.json) · [CSV](https://data.orchid-project.org/systems/CU-SE-TE.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#CU-SE-TE) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/CU-SE-TE.html) · [Markdown](https://data.orchid-project.org/systems/CU-SE-TE.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 55 |
| model | 8 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 8 |
| phase equilibrium | 55 |

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Cu–Se–Te system (8)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 812.45 | quasi-peritectic: β-Cu2SeTe + Liquid -> β-Cu4Te3 + τ2 | Liquid: Cu 0.5733, Se 0.0984, Te 0.3283 | model | [1] Hutabalian 2023 | Table 5, p. 17, row 1; `ORC-HUADN4NLTN` |  |
| 676.95 | quasi-peritectic: β-Cu4Te3 + Liquid -> β-CuTe + τ2 | Liquid: Cu 0.3896, Se 0.0296, Te 0.5808 | model | [1] Hutabalian 2023 | Table 5, p. 17, row 2; `ORC-5CCVJMIUPM` |  |
| 676.05 | eutectic: β-Cu2SeTe + Hexagonal_A8 + τ1 -> Liquid | Liquid: Cu 0.1511, Se 0.2281, Te 0.6208 | model | [1] Hutabalian 2023 | Table 5, p. 17, row 4; `ORC-IRR6MZFXJQ` |  |
| 673.75 | eutectic: β-Cu2SeTe + Hexagonal_A8 + τ2 -> Liquid | Liquid: Cu 0.3059, Se 0.1069, Te 0.5872 | model | [1] Hutabalian 2023 | Table 5, p. 17, row 3; `ORC-R2XO7VPAJW` |  |
| 658.55 | quasi-peritectic: Liquid + β-Cu2SeTe -> τ1 + γ-CuSe | Liquid: Cu 2.000e-4, Se 0.9233, Te 0.0765 | model | [1] Hutabalian 2023 | Table 5, p. 17, row 5; `ORC-QG4P5K5SNC` |  |
| 619.85 | quasi-peritectic: α-CuTe + β-CuTe -> Liquid + τ2 | Liquid: Cu 0.323, Se 0.0243, Te 0.6527 | model | [1] Hutabalian 2023 | Table 5, p. 17, row 6; `ORC-CTGXNSCGRU` |  |
| 619.85 | peritectic: Hexagonal_A8 + β-CuTe -> Liquid + α-CuTe | Liquid: Cu 0.296, Se 0.0079, Te 0.6961 | model | [1] Hutabalian 2023 | Table 5, p. 17, row 7; `ORC-R5HXCR54XK` |  |
| 615.15 | eutectic: Hexagonal_A8 + τ2 + α-CuTe -> Liquid | Liquid: Cu 0.3172, Se 0.0242, Te 0.6586 | model | [1] Hutabalian 2023 | Table 5, p. 17, row 8; `ORC-BNRK3J4QQ3` |  |

## Other properties

### Phase equilibrium (55)

Table: Phase equilibrium, Cu–Se–Te system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase assemblage |  | 773.15 | Cu + Cu2(Se,Te); _alloy: Se 0.15, Te 0.15_ | experimental | [1] Hutabalian 2023 | p. 5; `ORC-6ALO2GMPQR.b41a58` | “Following a similar analytical determination, the equilibrium phases at 500 C in the Cu-Se-Te system were established. Figure 5(a), (b), (c), (d), (e), (f), (g), (h), (i) and (j) are the BEI micrographs of alloys #1, 2, 6, 7, 8, 13, 14, 22, 23, and 25, respectively. As shown in Fig. 5(a) and (b), alloys #1 (Cu10at.%Se-10at.%Te) and #2 (Cu-15at.%Se-15at.%Te) were both determined to be in a two-pha…” |
| Phase assemblage |  | 773.15 | Cu + Cu2(Se,Te); _alloy: Se 0.1, Te 0.1_ | experimental | [1] Hutabalian 2023 | p. 5; `ORC-6ALO2GMPQR.c51f87` | “Following a similar analytical determination, the equilibrium phases at 500 C in the Cu-Se-Te system were established. Figure 5(a), (b), (c), (d), (e), (f), (g), (h), (i) and (j) are the BEI micrographs of alloys #1, 2, 6, 7, 8, 13, 14, 22, 23, and 25, respectively. As shown in Fig. 5(a) and (b), alloys #1 (Cu10at.%Se-10at.%Te) and #2 (Cu-15at.%Se-15at.%Te) were both determined to be in a two-pha…” |
| Phase assemblage |  | 773.15 | Cu2(Se,Te); _alloy: Se 0.15, Te 0.15_ | experimental | [1] Hutabalian 2023 | p. 5; `ORC-6ALO2GMPQR.e3da23` | “Following a similar analytical determination, the equilibrium phases at 500 C in the Cu-Se-Te system were established. Figure 5(a), (b), (c), (d), (e), (f), (g), (h), (i) and (j) are the BEI micrographs of alloys #1, 2, 6, 7, 8, 13, 14, 22, 23, and 25, respectively. As shown in Fig. 5(a) and (b), alloys #1 (Cu10at.%Se-10at.%Te) and #2 (Cu-15at.%Se-15at.%Te) were both determined to be in a two-ph…” |
| Phase assemblage |  | 773.15 | Cu2Se + s1 + liquid; _alloy: Se 0.315, Te 0.325_ | experimental | [1] Hutabalian 2023 | p. 2; `ORC-T7YR6RMP2M` | “The chemical composition of the dark phase is Cu-35.18at.%Se1.28at.%Te, which is the Cu2Se phase, and the composition of the gray phase is Cu-42.68at.%Se-23.27at.%Te, which is a ternary phase. Hereafter, this phase is denoted as the s1 phase. The dendritic microstructure contains a white matrix and some gray precipitate phases. Its average composition is Cu-32.12at.%Se-40.39at.%Te which was a liq…” |
| Phase composition |  |  | (Se,Te); _(Se,Te): Cu 0.0087, Se 0.1313, Te 0.86_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 21; `ORC-2IF7QHZWX4` |  |
| Phase composition |  |  | (Se,Te); _(Se,Te): Cu 0.07, Se 0.049, Te 0.881_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 25; `ORC-4CFKNSTQ3E` |  |
| Phase composition |  |  | (Se,Te); _(Se,Te): Cu 0.143, Se 0.128, Te 0.709_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 22; `ORC-4ZTGYMVOMB` |  |
| Phase composition |  |  | (Se,Te); _(Se,Te): Cu 0.204, Se 0.188, Te 0.608_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 19; `ORC-FMACTAWWDT` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.629, Se 0.305, Te 0.066_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 24; `ORC-7KTCKSVVXI` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.619, Se 0.376, Te 0.005_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 5; `ORC-EOZ7KMZE4G` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.648, Se 0.26, Te 0.092_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 8; `ORC-JLQ2REYNQQ` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.631, Se 0.363, Te 0.006_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 9; `ORC-N3EOGLGOHJ` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.645, Se 0.303, Te 0.052_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 4; `ORC-OPG5MPGJLS` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.646, Se 0.326, Te 0.028_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 7; `ORC-TBAQY3E7JW` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.649, Se 0.297, Te 0.054_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 10; `ORC-WRLH5VBBFR` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.655, Se 0.301, Te 0.044_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 3; `ORC-Y7GN3YLAAV` |  |
| Phase composition |  |  | Cu2(Se,Te); _Cu2(Se,Te): Cu 0.62, Se 0.094, Te 0.286_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 2; `ORC-YPKGSPC3IT` |  |
| Phase composition |  |  | Cu4Te3; _Cu4Te3: Cu 0.5796, Se 0.0318, Te 0.3886_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 11; `ORC-TNF42SAUTK` |  |
| Phase composition |  |  | τ1; _τ1: Cu 0.354, Se 0.383, Te 0.263_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 17; `ORC-5CJZOH7SYC` |  |
| Phase composition |  |  | τ1; _τ1: Cu 0.343, Se 0.422, Te 0.235_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 20; `ORC-DJTCINZRTZ` |  |
| Phase composition |  |  | τ1; _τ1: Cu 0.304, Se 0.608, Te 0.088_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 12; `ORC-JALWEFPJWQ` |  |
| Phase composition |  |  | τ1; _τ1: Cu 0.354, Se 0.422, Te 0.224_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 26; `ORC-JTJ7UX3JL6` |  |
| Phase composition |  |  | τ1; _τ1: Cu 0.327, Se 0.465, Te 0.208_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 14; `ORC-K3XMZK5MOU` |  |
| Phase composition |  |  | τ1; _τ1: Cu 0.345, Se 0.405, Te 0.25_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 13; `ORC-N6B3WL6SMV` |  |
| Phase composition |  |  | τ1; _τ1: Cu 0.335, Se 0.41, Te 0.255_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 18; `ORC-NE7OAQSL2Y` |  |
| Phase composition |  |  | τ1; _τ1: Cu 0.327, Se 0.464, Te 0.208_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 16; `ORC-SM5CEUKEAC` |  |
| Phase composition |  |  | τ2; _τ2: Cu 0.631, Se 0.225, Te 0.144_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 1; `ORC-57NZUT3LQ5` |  |
| Phase composition |  |  | τ2; _τ2: Cu 0.604, Se 0.182, Te 0.214_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 23; `ORC-6ROOO7HNQJ` |  |
| Phase composition |  |  | τ2; _τ2: Cu 0.622, Se 0.119, Te 0.259_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 6; `ORC-XP4UXMD2EG` |  |
| Phase composition |  |  | τ2; _τ2: Cu 0.621, Se 0.157, Te 0.222_ | experimental | [1] Hutabalian 2023 | Table 2, p. 8, row 15; `ORC-YVIAIJFD7H` |  |
| Phase composition |  | 773.15 | Cu + Cu₂(Se,Te) + Cu2(Se,Te); _Cu: Cu 0.9957, Se 0.0041, Te 2.000e-4; Cu₂(Se,Te): Cu 0.678, Se 0.1509, Te 0.1711; Cu2(Se,Te): Cu 0.678, Se 0.1509, Te 0.1711_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 2; `ORC-D3GBTRJI7I` |  |
| Phase composition |  | 773.15 | Cu + Cu₂(Se,Te) + Cu2(Se,Te); _Cu: Cu 0.9988, Se 2.000e-4, Te 0.001; Cu₂(Se,Te): Cu 0.683, Se 0.143, Te 0.1708; Cu2(Se,Te): Cu 0.683, Se 0.143, Te 0.1708_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 1; `ORC-M3TCRBT6HR` |  |
| Phase composition |  | 773.15 | Cu + Cu₂(Se,Te) + Cu2(Se,Te); _Cu: Cu 0.9971, Se 0.0017, Te 0.0012; Cu₂(Se,Te): Cu 0.6781, Se 0.1163, Te 0.2056; Cu2(Se,Te): Cu 0.6781, Se 0.1163, Te 0.2056_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 9; `ORC-XSOLZSSYMZ` |  |
| Phase composition |  | 773.15 | Cu₂(Se,Te) + Cu2(Se,Te); _Cu₂(Se,Te): Cu 0.6842, Se 0.2221, Te 0.0937; Cu2(Se,Te): Cu 0.6842, Se 0.2221, Te 0.0937_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 4; `ORC-35SY3AXAAP` |  |
| Phase composition |  | 773.15 | Cu₂(Se,Te) + Cu2(Se,Te); _Cu₂(Se,Te): Cu 0.6746, Se 0.0622, Te 0.2632; Cu2(Se,Te): Cu 0.6746, Se 0.0622, Te 0.2632_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 5; `ORC-4WAHVUBVX4` |  |
| Phase composition |  | 773.15 | Cu₂(Se,Te) + Cu2(Se,Te); _Cu₂(Se,Te): Cu 0.6555, Se 0.0255, Te 0.319; Cu2(Se,Te): Cu 0.6555, Se 0.0255, Te 0.319_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 6; `ORC-BE4IFMFLU3` |  |
| Phase composition |  | 773.15 | Cu₂(Se,Te) + Cu2(Se,Te); _Cu₂(Se,Te): Cu 0.6795, Se 0.245, Te 0.0755; Cu2(Se,Te): Cu 0.6795, Se 0.245, Te 0.0755_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 3; `ORC-RCQ6SX2ONG` |  |
| Phase composition |  | 773.15 | Cu₂(Se,Te) + Cu₄Te₃ + τ₂ + Cu2(Se,Te) + Cu4Te3; _Cu₂(Se,Te): Cu 0.648, Se 0.0366, Te 0.3154; Cu₄Te₃: Cu 0.6247, Se 0.0468, Te 0.3284; Cu2(Se,Te): Cu 0.648, Se 0.0366, Te 0.3154; Cu4Te3: Cu 0.6247, Se 0.0468, Te 0.3284_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 7; `ORC-3PUSXYP5YR` |  |
| Phase composition |  | 773.15 | Cu₂(Se,Te) + Cu₄Te₃ + τ₂ + Cu2(Se,Te) + Cu4Te3; _Cu₂(Se,Te): Cu 0.6699, Se 0.1415, Te 0.1886; Cu₄Te₃: Cu 0.6358, Se 0.1281, Te 0.236; Cu2(Se,Te): Cu 0.6699, Se 0.1415, Te 0.1886; Cu4Te3: Cu 0.6358, Se 0.1281, Te 0.236_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 8; `ORC-TYTOKTFDN5` |  |
| Phase composition |  | 773.15 | Cu₂Se + Liquid + Cu2Se; _Cu₂Se: Cu 0.6183, Se 0.3246, Te 0.0571; Liquid: Cu 0.0263, Se 0.0224, Te 0.9513; Cu2Se: Cu 0.6183, Se 0.3246, Te 0.0571_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 18; `ORC-3XWDNTK3S2` |  |
| Phase composition |  | 773.15 | Cu₂Se + Liquid + Cu2Se; _Cu₂Se: Cu 0.658, Se 0.2899, Te 0.0521; Liquid: Cu 0.2937, Se 0.2229, Te 0.4834; Cu2Se: Cu 0.658, Se 0.2899, Te 0.0521_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 11; `ORC-XFU2BVYYFK` |  |
| Phase composition |  | 773.15 | Cu₂Se + τ₁ + Liquid + Cu2Se + τ1; _Cu₂Se: Cu 0.6026, Se 0.3916, Te 0.0058; τ₁: Cu 0.3424, Se 0.4443, Te 0.2133; Liquid: Cu 0.2695, Se 0.3031, Te 0.4274; Cu2Se: Cu 0.6026, Se 0.3916, Te 0.0058; τ1: Cu 0.3424, Se 0.4443, Te 0.2133_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 17; `ORC-4BFLCTM3AU` |  |
| Phase composition |  | 773.15 | Cu₂Se + τ₁ + Liquid + Cu2Se + τ1; _Cu₂Se: Cu 0.6216, Se 0.3298, Te 0.0486; τ₁: Cu 0.3424, Se 0.4451, Te 0.2125; Liquid: Cu 0.2782, Se 0.2382, Te 0.4836; Cu2Se: Cu 0.6216, Se 0.3298, Te 0.0486; τ1: Cu 0.3424, Se 0.4451, Te 0.2125_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 21; `ORC-H4VJMKDORO` |  |
| Phase composition |  | 773.15 | Cu₂Se + τ₁ + Liquid + Cu2Se + τ1; _Cu₂Se: Cu 0.6183, Se 0.3797, Te 0.002; τ₁: Cu 0.3347, Se 0.4605, Te 0.2048; Cu2Se: Cu 0.6183, Se 0.3797, Te 0.002; τ1: Cu 0.3347, Se 0.4605, Te 0.2048_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 20; `ORC-K6PWTYFDZJ` |  |
| Phase composition |  | 773.15 | Cu₂Se + τ₁ + Liquid + Cu2Se + τ1; _Cu₂Se: Cu 0.6354, Se 0.3518, Te 0.0128; τ₁: Cu 0.3405, Se 0.4268, Te 0.2327; Liquid: Cu 0.2749, Se 0.3212, Te 0.4039; Cu2Se: Cu 0.6354, Se 0.3518, Te 0.0128; τ1: Cu 0.3405, Se 0.4268, Te 0.2327_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 12; `ORC-M4MXQJCKSP` |  |
| Phase composition |  | 773.15 | Cu₂Se + τ₂ + Cu2Se + τ2; _Cu₂Se: Cu 0.5804, Se 0.0572, Te 0.3623; τ₂: Cu 0.6214, Se 0.1722, Te 0.2064; Cu2Se: Cu 0.5804, Se 0.0572, Te 0.3623; τ2: Cu 0.6214, Se 0.1722, Te 0.2064_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 16; `ORC-2K4JRJQTVK` |  |
| Phase composition |  | 773.15 | Cu₂Se + τ₂ + Cu2Se + τ2; _Cu₂Se: Cu 0.6388, Se 0.269, Te 0.0922; τ₂: Cu 0.6238, Se 0.2115, Te 0.1647; Cu2Se: Cu 0.6388, Se 0.269, Te 0.0922; τ2: Cu 0.6238, Se 0.2115, Te 0.1647_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 15; `ORC-4UOFGWAUTW` |  |
| Phase composition |  | 773.15 | Cu₄Te₃ + Liquid + τ₂ + Cu4Te3 + τ2; _Cu₄Te₃: Cu 0.52, Se 0.0137, Te 0.4663; Liquid: Cu 0.3414, Se 0.0501, Te 0.6085; τ₂: Cu 0.6136, Se 0.141, Te 0.2454; Cu4Te3: Cu 0.52, Se 0.0137, Te 0.4663; τ2: Cu 0.6136, Se 0.141, Te 0.2454_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 25; `ORC-EHWCNAK6FM` |  |
| Phase composition |  | 773.15 | τ₁ + Liquid + τ1; _τ₁: Cu 0.3231, Se 0.4438, Te 0.2331; Liquid: Cu 0.1581, Se 0.3653, Te 0.4766; τ1: Cu 0.3231, Se 0.4438, Te 0.2331_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 13; `ORC-4DOOCLIA7A` |  |
| Phase composition |  | 773.15 | τ₁ + Liquid + τ1; _τ₁: Cu 0.3185, Se 0.4467, Te 0.2348; Liquid: Cu 0.0929, Se 0.4238, Te 0.4833; τ1: Cu 0.3185, Se 0.4467, Te 0.2348_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 14; `ORC-R2PNZ6NJXZ` |  |
| Phase composition |  | 773.15 | τ₂ + Liquid + Cu₂Se + τ2 + Cu2Se; _τ₂: Cu 0.6363, Se 0.2013, Te 0.1624; Liquid: Cu 0.3058, Se 0.1988, Te 0.4954; Cu₂Se: Cu 0.6521, Se 0.2616, Te 0.0863; τ2: Cu 0.6363, Se 0.2013, Te 0.1624; Cu2Se: Cu 0.6521, Se 0.2616, Te 0.0863_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 19; `ORC-22SY5VKPBE` |  |
| Phase composition |  | 773.15 | τ₂ + Liquid + τ2; _τ₂: Cu 0.6225, Se 0.1762, Te 0.2013; Liquid: Cu 0.3284, Se 0.0808, Te 0.5908; τ2: Cu 0.6225, Se 0.1762, Te 0.2013_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 22; `ORC-K3SIP23KQN` |  |
| Phase composition |  | 773.15 | τ₂ + Liquid + τ2; _τ₂: Cu 0.6188, Se 0.1819, Te 0.1993; Liquid: Cu 0.2416, Se 0.1686, Te 0.5898; τ2: Cu 0.6188, Se 0.1819, Te 0.1993_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 23; `ORC-VEGUTE67M2` |  |
| Phase composition |  | 773.15 | τ₂ + τ2; _τ₂: Cu 0.6404, Se 0.169, Te 0.1906; τ2: Cu 0.6404, Se 0.169, Te 0.1906_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 10; `ORC-2PJGNVLR4K` |  |
| Phase composition |  | 773.15 | τ₂ + τ2; _τ₂: Cu 0.6222, Se 0.1863, Te 0.1915; τ2: Cu 0.6222, Se 0.1863, Te 0.1915_ | experimental | [1] Hutabalian 2023 | Table 1, p. 3, row 24; `ORC-W5CQVCOKOD` |  |

## Sources

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

1. Yohanes Hutabalian, Sinn-wen Chen, Wojciech Gierlotka, Phase Equilibria of the Cu-Se-Te Ternary System, J. Phase Equilib. Diffus. 44, 181-199 (2023). [doi:10.1007/s11669-023-01032-4](https://doi.org/10.1007/s11669-023-01032-4)

## 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 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_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/).