# Au–Tb system

> Au–Tb system: 70 accepted literature values (invariant reaction 59, phase transition 11) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/AU-TB.html · Markdown: https://data.orchid-project.org/systems/AU-TB.md

70 accepted literature values from 2 paper(s) (experimental 42, model 28); 2 calculated phase diagram(s). 12 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/AU-TB.json) · [CSV](https://data.orchid-project.org/systems/AU-TB.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#AU-TB) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#AU-TB/AuTb-16Otm.json) · [phases (13)](https://data.orchid-project.org/phases/pages/AU-TB.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/AU-TB.html) · [Markdown](https://data.orchid-project.org/systems/AU-TB.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 42 |
| model | 28 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 59 |
| phase transition | 11 |

## 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 |
|---|---|---|---|
| AuTb-16Otm.tdb | S. Otmani, K. Mahdouk, J. Alloys Compd., 670, 369-73(2016). [doi:10.1016/j.jallcom.2016.01.260](https://doi.org/10.1016/j.jallcom.2016.01.260) | `3d40e677f0e61d9c17ca821ab33d8859261851630a2070944aeb1217194a1c4e` | [viewer](https://orchid-project.org/phase-diagrams/#AU-TB/AuTb-16Otm.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AuTb-16Otm.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AuTb-16Otm.json) |
| AuTb-16Wan.tdb | S.L. Wang, J.L. Li, L.L. Qiu, L.J. Zhou, Y.H. Li, C.Q. Ren, C.Y. Fu, Y.H. Lin, C.P. Wang, X.J. Liu, J. Phase Equilib Diffus., 37, 319-26(2016). [doi:10.1007/s11669-016-0460-4](https://doi.org/10.1007/s11669-016-0460-4) | `79c53dab2d6a949a841276ed22a5de065368aa7860544d70f1f227a1e97270cf` | [viewer](https://orchid-project.org/phase-diagrams/#AU-TB/AuTb-16Wan.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AuTb-16Wan.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AuTb-16Wan.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| AuTb-16Otm.tdb | 1731.41 | AUTB_B33 (x(Tb) 0.5) + AUTB_B2 (x(Tb) 0.5) + LIQUID (x(Tb) 0.57951) |
| AuTb-16Otm.tdb | 1731.41 | LIQUID (x(Tb) 0.42522) + AUTB_B33 (x(Tb) 0.5) + AUTB_B2 (x(Tb) 0.5) |
| AuTb-16Otm.tdb | 1614.02 | LIQUID (x(Tb) 0.39848) + AU4TB3 (x(Tb) 0.42857) + AUTB_B33 (x(Tb) 0.5) |
| AuTb-16Otm.tdb | 1614.02 | LIQUID (x(Tb) 0.39852) + AU4TB3 (x(Tb) 0.42857) + AUTB_B33 (x(Tb) 0.5) |
| AuTb-16Otm.tdb | 1561.92 | LIQUID (x(Tb) 0.9695) + BCC_A2 (x(Tb) 0.99882) + HCP_A3 (x(Tb) 0.99884) |
| AuTb-16Otm.tdb | 1521.82 | LIQUID (x(Tb) 0.36872) + AU10TB7 (x(Tb) 0.41176) + AU4TB3 (x(Tb) 0.42857) |
| AuTb-16Otm.tdb | 1521.82 | LIQUID (x(Tb) 0.3687) + AU10TB7 (x(Tb) 0.41176) + AU4TB3 (x(Tb) 0.42857) |
| AuTb-16Otm.tdb | 1521.82 | LIQUID (x(Tb) 0.36879) + AU10TB7 (x(Tb) 0.41176) + AU4TB3 (x(Tb) 0.42857) |
| AuTb-16Otm.tdb | 1493.32 | AU2TB_C11B (x(Tb) 0.33333) + LIQUID (x(Tb) 0.36063) + AU10TB7 (x(Tb) 0.41176) |
| AuTb-16Otm.tdb | 1493.32 | AU2TB_C11B (x(Tb) 0.33333) + LIQUID (x(Tb) 0.36058) + AU10TB7 (x(Tb) 0.41176) |
| AuTb-16Otm.tdb | 1432.75 | AU3TB_D0A (x(Tb) 0.25) + LIQUID (x(Tb) 0.28833) + AU2TB_C11B (x(Tb) 0.33333) |
| AuTb-16Otm.tdb | 1432.75 | AU3TB_D0A (x(Tb) 0.25) + LIQUID (x(Tb) 0.28835) + AU2TB_C11B (x(Tb) 0.33333) |
| AuTb-16Otm.tdb | 1387.77 | LIQUID (x(Tb) 0.19854) + AU51TB14 (x(Tb) 0.21538) + AU3TB_D0A (x(Tb) 0.25) |
| AuTb-16Otm.tdb | 1387.77 | LIQUID (x(Tb) 0.19862) + AU51TB14 (x(Tb) 0.21538) + AU3TB_D0A (x(Tb) 0.25) |
| AuTb-16Otm.tdb | 1267.09 | AUTB_B33 (x(Tb) 0.5) + AUTB2_C37 (x(Tb) 0.66667) + LIQUID (x(Tb) 0.66995) |
| AuTb-16Otm.tdb | 1267.08 | AUTB_B33 (x(Tb) 0.5) + AUTB2_C37 (x(Tb) 0.66667) + LIQUID (x(Tb) 0.67031) |
| AuTb-16Otm.tdb | 1150.69 | AUTB2_C37 (x(Tb) 0.66667) + LIQUID (x(Tb) 0.79374) + HCP_A3 (x(Tb) 0.98399) |
| AuTb-16Otm.tdb | 1120.77 | LIQUID (x(Tb) 0.11579) + AU6TB (x(Tb) 0.14286) + AU51TB14 (x(Tb) 0.21538) |
| AuTb-16Otm.tdb | 1120.77 | LIQUID (x(Tb) 0.11609) + AU6TB (x(Tb) 0.14286) + AU51TB14 (x(Tb) 0.21538) |
| AuTb-16Otm.tdb | 1120.77 | LIQUID (x(Tb) 0.11574) + AU6TB (x(Tb) 0.14286) + AU51TB14 (x(Tb) 0.21538) |
| AuTb-16Otm.tdb | 1072.01 | FCC_A1 (x(Tb) 0) + LIQUID (x(Tb) 0.07845) + AU6TB (x(Tb) 0.14286) |
| AuTb-16Otm.tdb | 1072.01 | FCC_A1 (x(Tb) 0) + LIQUID (x(Tb) 0.07839) + AU6TB (x(Tb) 0.14286) |
| AuTb-16Otm.tdb | 1072.01 | FCC_A1 (x(Tb) 0) + LIQUID (x(Tb) 0.07828) + AU6TB (x(Tb) 0.14286) |
| AuTb-16Wan.tdb | 1723.29 | AUTB_B33 (x(Tb) 0.5) + AUTB_B2 (x(Tb) 0.5) + LIQUID (x(Tb) 0.58243) |
| AuTb-16Wan.tdb | 1723.29 | LIQUID (x(Tb) 0.43043) + AUTB_B33 (x(Tb) 0.5) + AUTB_B2 (x(Tb) 0.5) |
| AuTb-16Wan.tdb | 1613.29 | LIQUID (x(Tb) 0.40822) + AU4TB3 (x(Tb) 0.42857) + AUTB_B33 (x(Tb) 0.5) |
| AuTb-16Wan.tdb | 1613.29 | LIQUID (x(Tb) 0.40831) + AU4TB3 (x(Tb) 0.42857) + AUTB_B33 (x(Tb) 0.5) |
| AuTb-16Wan.tdb | 1483.48 | LIQUID (x(Tb) 0.37258) + AU10TB7 (x(Tb) 0.41176) + AU4TB3 (x(Tb) 0.42857) |
| AuTb-16Wan.tdb | 1483.48 | LIQUID (x(Tb) 0.37255) + AU10TB7 (x(Tb) 0.41176) + AU4TB3 (x(Tb) 0.42857) |
| AuTb-16Wan.tdb | 1483.48 | LIQUID (x(Tb) 0.37262) + AU10TB7 (x(Tb) 0.41176) + AU4TB3 (x(Tb) 0.42857) |
| AuTb-16Wan.tdb | 1483.16 | LIQUID (x(Tb) 0.94052) + BCC_A2 (x(Tb) 0.98741) + HCP_A3 (x(Tb) 0.99881) |
| AuTb-16Wan.tdb | 1472.78 | AU2TB_C11B (x(Tb) 0.33333) + LIQUID (x(Tb) 0.36974) + AU10TB7 (x(Tb) 0.41176) |
| AuTb-16Wan.tdb | 1472.78 | AU2TB_C11B (x(Tb) 0.33333) + LIQUID (x(Tb) 0.36971) + AU10TB7 (x(Tb) 0.41176) |
| AuTb-16Wan.tdb | 1445.8 | AU51TB14 (x(Tb) 0.21538) + LIQUID (x(Tb) 0.2154) + AU3TB_D0A (x(Tb) 0.25) |
| AuTb-16Wan.tdb | 1445.8 | LIQUID (x(Tb) 0.21537) + AU51TB14 (x(Tb) 0.21538) + AU3TB_D0A (x(Tb) 0.25) |
| AuTb-16Wan.tdb | 1435.23 | AU3TB_D0A (x(Tb) 0.25) + LIQUID (x(Tb) 0.2884) + AU2TB_C11B (x(Tb) 0.33333) |
| AuTb-16Wan.tdb | 1272.88 | AUTB_B33 (x(Tb) 0.5) + AUTB2_C37 (x(Tb) 0.66667) + LIQUID (x(Tb) 0.70023) |
| AuTb-16Wan.tdb | 1272.88 | AUTB_B33 (x(Tb) 0.5) + AUTB2_C37 (x(Tb) 0.66667) + LIQUID (x(Tb) 0.69986) |
| AuTb-16Wan.tdb | 1152.91 | AUTB2_C37 (x(Tb) 0.66667) + LIQUID (x(Tb) 0.8135) + HCP_A3 (x(Tb) 0.99604) |
| AuTb-16Wan.tdb | 1152.91 | AUTB2_C37 (x(Tb) 0.66667) + LIQUID (x(Tb) 0.81345) + HCP_A3 (x(Tb) 0.99604) |
| AuTb-16Wan.tdb | 1130.73 | LIQUID (x(Tb) 0.12137) + AU6TB (x(Tb) 0.14286) + AU51TB14 (x(Tb) 0.21538) |
| AuTb-16Wan.tdb | 1130.73 | LIQUID (x(Tb) 0.12141) + AU6TB (x(Tb) 0.14286) + AU51TB14 (x(Tb) 0.21538) |
| AuTb-16Wan.tdb | 1130.73 | LIQUID (x(Tb) 0.12137) + AU6TB (x(Tb) 0.14286) + AU51TB14 (x(Tb) 0.21538) |
| AuTb-16Wan.tdb | 1077.25 | FCC_A1 (x(Tb) 0.02096) + LIQUID (x(Tb) 0.09513) + AU6TB (x(Tb) 0.14286) |
| AuTb-16Wan.tdb | 1077.25 | FCC_A1 (x(Tb) 0.02095) + LIQUID (x(Tb) 0.0951) + AU6TB (x(Tb) 0.14286) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/AU/AU-TB.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/AU/AU-TB.json) · [CALPHAD hull AuTb-16Wan](https://data.orchid-project.org/hulls/calphad-sgte/AU/AU-TB--AuTb-16Wan.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Au–Tb system (59)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1896.15 | congruent melting: L \<-> βAuTb | L: Tb 0.5; βAuTb: Tb 0.5 | experimental | [1] Wang 2016; _cites McMasters 1971_ | Table 2, p. 3, row 8; `ORC-OOUUOWXXSK` |  |
| 1863.15 | congruent melting: L \<-> βAuTb | L: Tb 0.5; βAuTb: Tb 0.5 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 7; `ORC-X3DBETZOGC` |  |
| 1862.55 | congruent melting: L \<-> βAuTb | L: Tb 0.5; βAuTb: Tb 0.5 | model | [1] Wang 2016 | Table 2, p. 3, row 9; `ORC-JTGUC24SYL` |  |
| 1723.25 | polymorphic: βAuTb \<-> αAuTb | βAuTb: Tb 0.5; αAuTb: Au 0.5, Tb 0.5 | model | [1] Wang 2016 | Table 2, p. 3, row 11; `ORC-3EP7AEXQGI` |  |
| 1723.15 | polymorphic: βAuTb \<-> αAuTb | βAuTb: Tb 0.5; αAuTb: Au 0.5, Tb 0.5 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 10; `ORC-YLTF7XZRP2` |  |
| 1628 | peritectic: L+αTbAu⇔Tb3Au4 | αTbAu: Tb 0.5; Tb3Au4: Tb 0.428571 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 36; `ORC-HL3ISQK3P7` |  |
| 1613.25 | peritectic: L + αAuTb \<-> Au4Tb3 | L: Tb 0.408; αAuTb: Tb 0.5; Au4Tb3: Tb 0.429 | model | [1] Wang 2016 | Table 2, p. 3, row 13; `ORC-QFUHXBB65T` |  |
| 1613.15 | peritectic: L + αAuTb \<-> Au4Tb3 | L: Tb 0.41; αAuTb: Tb 0.5; Au4Tb3: Tb 0.429 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 12; `ORC-YUTJOKMAQP` |  |
| 1613 | peritectic: L + αTbAu -> Tb3Au4 | L: Tb 0.4; αTbAu: Tb 0.5; Tb3Au4: Tb 0.428571 | model | [2] Otmani 2016 | Table 1, p. 3, row 14; `ORC-R5HMODJLCD` |  |
| 1613 | peritectic: L + αTbAu -> Tb3Au4 | L: Tb 0.41; αTbAu: Tb 0.5; Tb3Au4: Tb 0.428571 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 13; `ORC-X2NUAZEWVL` |  |
| 1562 | metatectic/catatectic: (βTb) -> (αTb) + L | L: Tb 0.975 | model | [2] Otmani 2016 | Table 1, p. 3, row 6; `ORC-JNOLVLTWP5` |  |
| 1538.15 | congruent melting: L \<-> Au2Tb | L: Tb 0.333; Au2Tb: Tb 0.333 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 18; `ORC-3UNHEXJUIF` |  |
| 1538.05 | congruent melting: L \<-> Au2Tb | L: Tb 0.333; Au2Tb: Tb 0.333 | model | [1] Wang 2016 | Table 2, p. 3, row 19; `ORC-YPQPBXXYN6` |  |
| 1498 | peritectic: L+Tb3Au4⇔Tb7Au10 | L: Tb 0.25; Tb3Au4: Tb 0.428571; Tb7Au10: Tb 0.411765 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 23; `ORC-MMCOQ3TH5U` |  |
| 1496 | peritectic: L + Tb3Au4 -> Tb7Au10 | L: Tb 0.37; Tb3Au4: Tb 0.428571; Tb7Au10: Tb 0.411765 | model | [2] Otmani 2016 | Table 1, p. 3, row 16; `ORC-6IACB3HW2F` |  |
| 1492 | eutectic: L -> Tb7Au10 + TbAu2 | L: Tb 0.362; Tb7Au10: Tb 0.411765; TbAu2: Tb 0.333333 | model | [2] Otmani 2016 | Table 1, p. 3, row 18; `ORC-NQPU2P4ZP5` |  |
| 1488.65 | congruent melting: L \<-> Au3Tb | L: Tb 0.25; Au3Tb: Tb 0.25 | model | [1] Wang 2016 | Table 2, p. 3, row 23; `ORC-CCPD6ESWB7` |  |
| 1488.15 | congruent melting: L \<-> Au3Tb | L: Tb 0.25; Au3Tb: Tb 0.25 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 22; `ORC-CW673WZ3OF` |  |
| 1483.25 | peritectic: L + Au4Tb3 \<-> Au10Tb7 | L: Tb 0.373; Au4Tb3: Tb 0.429; Au10Tb7: Tb 0.412 | model | [1] Wang 2016 | Table 2, p. 3, row 15; `ORC-FTHRO4KR5I` |  |
| 1483.15 | metatectic/catatectic: (βTb) \<-> (αTb) + L | (βTb): Tb 0.987; (αTb): Tb 0.999; L: Tb 0.941 | model | [1] Wang 2016 | Table 2, p. 3, row 2; `ORC-4DS74RBCYW` |  |
| 1483.15 | metatectic/catatectic: (βTb) \<-> (αTb) + L | (βTb): Tb 0.975; L: Tb 0.915 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 1; `ORC-JND6JBDLUA` |  |
| 1483.15 | peritectic: L + Au4Tb3 \<-> Au10Tb7 | L: Tb 0.38; Au4Tb3: Tb 0.429; Au10Tb7: Tb 0.412 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 14; `ORC-UYTAVZDGJ5` |  |
| 1483 | metatectic/catatectic: (βTb) -> (αTb) + L | L: Tb 0.975 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 5; `ORC-JXYVV45RP5` |  |
| 1483 | eutectic: L⇔Tb7Au10+TbAu2 | Tb7Au10: Tb 0.411765; TbAu2: Tb 0.333333 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 37; `ORC-KJCQMZAPIZ` |  |
| 1483 | peritectic: L + Tb3Au4 -> Tb7Au10 | L: Tb 0.38; Tb3Au4: Tb 0.428571; Tb7Au10: Tb 0.411765 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 15; `ORC-LWX2A3633N` |  |
| 1472.75 | eutectic: L \<-> Au10Tb7 + Au2Tb | L: Tb 0.37; Au10Tb7: Tb 0.412; Au2Tb: Tb 0.333 | model | [1] Wang 2016 | Table 2, p. 3, row 17; `ORC-GKUH3B6CEW` |  |
| 1468.15 | eutectic: L \<-> Au10Tb7 + Au2Tb | L: Tb 0.375; Au10Tb7: Tb 0.412; Au2Tb: Tb 0.333 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 16; `ORC-RU7U5RGE7X` |  |
| 1468 | eutectic: L -> Tb7Au10 + TbAu2 | L: Tb 0.375; Tb7Au10: Tb 0.411765; TbAu2: Tb 0.333333 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 17; `ORC-6R5LWUXTP5` |  |
| 1448.15 | peritectic: L + Au3Tb \<-> Au51Tb14 | L: Tb 0.21; Au3Tb: Tb 0.25; Au51Tb14: Tb 0.2154 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 24; `ORC-JK5DKTXZOB` |  |
| 1448 | peritectic: L + TbAu3 -> Tb14Au51 | L: Tb 0.21; TbAu3: Tb 0.25; Tb14Au51: Tb 0.215385 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 25; `ORC-JQAZ4BGJ43` |  |
| 1445.55 | peritectic: L + Au3Tb \<-> Au51Tb14 | L: Tb 0.2153; Au3Tb: Tb 0.25; Au51Tb14: Tb 0.2154 | model | [1] Wang 2016 | Table 2, p. 3, row 25; `ORC-N6SRBSGXWM` |  |
| 1443 | eutectic: L⇔TbAu2+TbAu3 | TbAu2: Tb 0.333333; TbAu3: Tb 0.25 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 39; `ORC-JC26GVUINI` |  |
| 1435.35 | eutectic: L \<-> Au2Tb + Au3Tb | L: Tb 0.288; Au2Tb: Tb 0.333; Au3Tb: Tb 0.25 | model | [1] Wang 2016 | Table 2, p. 3, row 21; `ORC-HIKXU6ZVDL` |  |
| 1435 | eutectic: L -> TbAu2 + TbAu3 | L: Tb 0.29; TbAu2: Tb 0.333333; TbAu3: Tb 0.25 | model | [2] Otmani 2016 | Table 1, p. 3, row 22; `ORC-UARYZEGZZ6` |  |
| 1433.15 | eutectic: L \<-> Au2Tb + Au3Tb | L: Tb 0.29; Au2Tb: Tb 0.333; Au3Tb: Tb 0.25 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 20; `ORC-CZEPNBLXI7` |  |
| 1433 | eutectic: L -> TbAu2 + TbAu3 | L: Tb 0.29; TbAu2: Tb 0.333333; TbAu3: Tb 0.25 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 21; `ORC-VLSWGFB7ED` |  |
| 1388 | peritectic: L+TbAu3⇔Tb14Au51 | TbAu3: Tb 0.25; Tb14Au51: Tb 0.215385 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 42; `ORC-N7I7LYW67O` |  |
| 1376 | peritectic: L + TbAu3 -> Tb14Au51 | L: Tb 0.2; TbAu3: Tb 0.25; Tb14Au51: Tb 0.215385 | model | [2] Otmani 2016 | Table 1, p. 3, row 26; `ORC-M7YYTCARHE` |  |
| 1273.25 | peritectic: L + αAuTb \<-> AuTb2 | L: Tb 0.7; αAuTb: Tb 0.5; AuTb2: Tb 0.667 | model | [1] Wang 2016 | Table 2, p. 3, row 6; `ORC-MUC43GIRUR` |  |
| 1273.15 | peritectic: L + αAuTb \<-> AuTb2 | L: Tb 0.71; αAuTb: Tb 0.5; AuTb2: Tb 0.667 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 5; `ORC-WOIZO2SDBO` |  |
| 1273 | peritectic: L+TbAu⇔Tb2Au | TbAu: Tb 0.5; Tb2Au: Tb 0.666667 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 34; `ORC-QUMX2D66NC` |  |
| 1273 | peritectic: L + TbAu -> Tb2Au | L: Tb 0.71; TbAu: Tb 0.5; Tb2Au: Tb 0.666667 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 9; `ORC-W3CPAU7PRS` |  |
| 1270 | peritectic: L + TbAu -> Tb2Au | L: Tb 0.672; TbAu: Tb 0.5; Tb2Au: Tb 0.666667 | model | [2] Otmani 2016 | Table 1, p. 3, row 10; `ORC-EK6E3TEYHS` |  |
| 1163 | eutectic: L⇔(αTb)+Tb2Au | Tb2Au: Tb 0.666667 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 33; `ORC-4AZLD6QH6I` |  |
| 1153.15 | eutectic: L \<-> (αTb) + AuTb2 | L: Tb 0.814; (αTb): Tb 0.996; AuTb2: Tb 0.667 | model | [1] Wang 2016 | Table 2, p. 3, row 4; `ORC-IH5GOIG2VC` |  |
| 1153.15 | eutectic: L \<-> (αTb) + AuTb2 | L: Tb 0.8; AuTb2: Tb 0.667 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 3; `ORC-VIO3SQJMD7` |  |
| 1153 | eutectic: L -> (αTb) + Tb2Au | L: Tb 0.8; Tb2Au: Tb 0.666667 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 7; `ORC-5XML6LOHUZ` |  |
| 1153 | eutectic: L -> (αTb) + Tb2Au | L: Tb 0.795; Tb2Au: Tb 0.666667 | model | [2] Otmani 2016 | Table 1, p. 3, row 8; `ORC-AL47XL3MQ6` |  |
| 1129.65 | peritectic: L + Au51Tb14 \<-> Au6Tb | L: Tb 0.121; Au51Tb14: Tb 0.215; Au6Tb: Tb 0.143 | model | [1] Wang 2016 | Table 2, p. 3, row 27; `ORC-D7OEUFTRLP` |  |
| 1128.15 | peritectic: L + Au51Tb14 \<-> Au6Tb | L: Tb 0.12; Au51Tb14: Tb 0.215; Au6Tb: Tb 0.143 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 26; `ORC-QDFPOX3S26` |  |
| 1128 | peritectic: L + Tb14Au51 -> TbAu6 | L: Tb 0.12; Tb14Au51: Tb 0.215385; TbAu6: Tb 0.142857 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 27; `ORC-WE5OJBYXAL` |  |
| 1121 | peritectic: L + Tb14Au51 -> TbAu6 | L: Tb 0.12; Tb14Au51: Tb 0.215385; TbAu6: Tb 0.142857 | model | [2] Otmani 2016 | Table 1, p. 3, row 28; `ORC-KUEGZCIDER` |  |
| 1082.15 | eutectic: L \<-> Au6Tb + (Au) | Au6Tb: Au 0.857143, Tb 0.142857; (Au): Tb 0.015 | experimental | [1] Wang 2016; _cites Rider 1965_ | Table 2, p. 3, row 29; `ORC-YX55PSGVCY` |  |
| 1078.15 | eutectic: L \<-> Au6Tb + (Au) | L: Tb 0.11; Au6Tb: Tb 0.143; (Au): Tb 0.015 | experimental | [1] Wang 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 2, p. 3, row 28; `ORC-TGY44S24IC` |  |
| 1078 | eutectic: L -> TbAu6 + (Au) | L: Tb 0.11; TbAu6: Tb 0.142857 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 29; `ORC-BPO4HRART2` |  |
| 1076.65 | eutectic: L \<-> Au6Tb + (Au) | L: Tb 0.095; Au6Tb: Tb 0.143; (Au): Tb 0.021 | model | [1] Wang 2016 | Table 2, p. 3, row 30; `ORC-OUEGZ6AP6E` |  |
| 1075 | eutectic: L -> TbAu6 + (Au) | L: Tb 0.09; TbAu6: Tb 0.142857 | model | [2] Otmani 2016 | Table 1, p. 3, row 30; `ORC-DDT2SGBIE4` |  |
| 1033 | peritectic: L+Tb14Au51⇔TbAu6 | Tb14Au51: Tb 0.215385; TbAu6: Tb 0.142857 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 43; `ORC-TCOUV3WZOB` |  |
| 1023 | eutectic: L⇔TbAu6+(Au) | TbAu6: Tb 0.142857 | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 44; `ORC-TJFPUPNJSX` |  |

## Other properties

### Phase transition (11)

Table: Phase transition, Au–Tb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1337 K | 1337 | congruent melting: L -> (Au); _L: Tb 0_ | model | [2] Otmani 2016 | Table 1, p. 3, row 32; `ORC-2B765K7S3J` |  |
| Phase transition | 1337 K | 1337 | congruent melting: L -> (Au); _L: Tb 0_ | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 31; `ORC-GSGZKBY2VQ` |  |
| Phase transition | 1484 K | 1484 | congruent melting: L -> TbAu3; _L: Tb 0.25; TbAu3: Tb 0.25_ | model | [2] Otmani 2016 | Table 1, p. 3, row 24; `ORC-OCBHAWP4WC` |  |
| Phase transition | 1488 K | 1488 | congruent melting: L⇔TbAu3; _L: Tb 0.25; TbAu3: Tb 0.25_ | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 40; `ORC-RH77BAKG3Q` |  |
| Phase transition | 1498 K | 1498 | congruent melting: L⇔TbAu3; _L: Tb 0.25; TbAu3: Tb 0.25_ | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 41; `ORC-WLWF2VG7NR` |  |
| Phase transition | 1530 K | 1530 | congruent melting: L -> TbAu2; _L: Tb 0.333; TbAu2: Tb 0.333333_ | model | [2] Otmani 2016 | Table 1, p. 3, row 20; `ORC-6KV3RDJPUT` |  |
| Phase transition | 1538 K | 1538 | congruent melting: L -> TbAu2; _L: Tb 0.333; TbAu2: Tb 0.333333_ | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 19; `ORC-EBEM3UR2UW` |  |
| Phase transition | 1553 K | 1553 | congruent melting: L⇔TbAu2; _L: Tb 0.333333; TbAu2: Tb 0.333333_ | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 38; `ORC-OYEWDNBLYQ` |  |
| Phase transition | 1863 K | 1863 | congruent melting: L -> βTbAu; _L: Tb 0.5; βTbAu: Tb 0.5_ | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 11; `ORC-WNKLRBFCOW` |  |
| Phase transition | 1863 K | 1863 | congruent melting: L⇔βTbAu; _L: Tb 0.5; βTbAu: Tb 0.5_ | experimental | [2] Otmani 2016; _cites Saccone 2000_ [doi](https://doi.org/10.1016/s0966-9795%2899%2900099-0) | Table 1, p. 3, row 35; `ORC-2O3DM66CLE` |  |
| Phase transition | 1866 K | 1866 | congruent melting: L -> βTbAu; _L: Tb 0.5; βTbAu: Tb 0.5_ | model | [2] Otmani 2016 | Table 1, p. 3, row 12; `ORC-NQ5ZHC4KMI` |  |

## Sources

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

1. S. L. Wang, J. L. Li, L. L. Qiu, L. J. Zhou, Y. H. Li, C. Q. Ren et al., Thermodynamic Assessments of the Au-Tb and Au-Lu Systems, J. Phase Equilib. Diffus. 37, 319-326 (2016). [doi:10.1007/s11669-016-0460-4](https://doi.org/10.1007/s11669-016-0460-4)
2. Samira Otmani, Kamal Mahdouk, Thermodynamic assessment of the terbium–gold binary system, Journal of Alloys and Compounds 670, 369-373 (2016). [doi:10.1016/j.jallcom.2016.01.260](https://doi.org/10.1016/j.jallcom.2016.01.260)

## 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/).