# Al–La system

> Al–La system: 63 accepted literature values (invariant reaction 53, phase transition 8, formation 2) and 4 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/AL-LA.html · Markdown: https://data.orchid-project.org/systems/AL-LA.md

63 accepted literature values from 3 paper(s) (experimental 25, model 38); 4 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/AL-LA.json) · [CSV](https://data.orchid-project.org/systems/AL-LA.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#AL-LA) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#AL-LA/AlLa-00Yin.json) · [phases (15)](https://data.orchid-project.org/phases/pages/AL-LA.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/AL-LA.html) · [Markdown](https://data.orchid-project.org/systems/AL-LA.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 25 |
| model | 38 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 53 |
| phase transition | 8 |
| formation | 2 |

## 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 |
|---|---|---|---|
| AlLa-00Yin.tdb | F. Yin, X. Su, Z. Li, M. Huang, Y. Shi, J. Alloys Compd., 302, 169-72(2000) [doi:10.1016/S0925-8388(00)00679-4](https://doi.org/10.1016/S0925-8388%2800%2900679-4) | `d5ccc26b4706bcb504419826a6388cdaf9f9ae1bc00e58d4495a97492ad2e0c5` | [viewer](https://orchid-project.org/phase-diagrams/#AL-LA/AlLa-00Yin.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlLa-00Yin.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlLa-00Yin.json) |
| AlLa-01Cac.tdb | G. Cacciamani, R. Ferro, Calphad, 25, 583-97(2001). [doi:10.1016/S0364-5916(02)00009-3](https://doi.org/10.1016/S0364-5916%2802%2900009-3) | `0a52fd62c246e10d397186e0714e8c653a9c820d6c5c12292899d2ed89c480a3` | [viewer](https://orchid-project.org/phase-diagrams/#AL-LA/AlLa-01Cac.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlLa-01Cac.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlLa-01Cac.json) |
| AlLa-06Zho.tdb | S.H. Zhou, R.E. Napolitano, Acta Mater., 54, 831-40(2006). [doi:10.1016/j.actamat.2005.10.013](https://doi.org/10.1016/j.actamat.2005.10.013) | `7e9d80b541dbeca9df28a5c4b268a9398772fdd909c018c9461c3528201edfcd` | [viewer](https://orchid-project.org/phase-diagrams/#AL-LA/AlLa-06Zho.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlLa-06Zho.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlLa-06Zho.json) |
| AlLa-18Lia.tdb | J. Liao, H. Wang, T.-Y. Chen, Materials, 11, 2396(2018). [doi:10.3390/ma11122396](https://doi.org/10.3390/ma11122396) | `657c214ec3fe44326955d6c18e7f88946a84aaeadb870c80923a1f5a31707a20` | [viewer](https://orchid-project.org/phase-diagrams/#AL-LA/AlLa-18Lia.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlLa-18Lia.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlLa-18Lia.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| AlLa-00Yin.tdb | 1511.51 | LIQUID (x(La) 0.24101) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33333) |
| AlLa-00Yin.tdb | 1511.51 | LIQUID (x(La) 0.24106) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33333) |
| AlLa-00Yin.tdb | 1511.51 | LIQUID (x(La) 0.24111) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33333) |
| AlLa-00Yin.tdb | 1499.87 | AL11LA3 (x(La) 0.21429) + LIQUID (x(La) 0.23582) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-00Yin.tdb | 1499.87 | AL11LA3 (x(La) 0.21429) + LIQUID (x(La) 0.23578) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-00Yin.tdb | 1443.21 | AL11LA3 (x(La) 0.21429) + AL3LA_D019 (x(La) 0.25) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-00Yin.tdb | 1363.18 | AL3LA_D019 (x(La) 0.25) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33333) |
| AlLa-00Yin.tdb | 1144.11 | AL2LA_C15 (x(La) 0.33333) + ALLA (x(La) 0.5) + LIQUID (x(La) 0.54225) |
| AlLa-00Yin.tdb | 1144.11 | AL2LA_C15 (x(La) 0.33333) + ALLA (x(La) 0.5) + LIQUID (x(La) 0.54223) |
| AlLa-00Yin.tdb | 1134.01 | LIQUID (x(La) 0.95809) + FCC_A1 (x(La) 0.99999) + BCC_A2 (x(La) 1) |
| AlLa-00Yin.tdb | 905.04 | FCC_A1 (x(La) 0) + LIQUID (x(La) 0.02204) + AL11LA3 (x(La) 0.21429) |
| AlLa-00Yin.tdb | 905.04 | FCC_A1 (x(La) 0) + LIQUID (x(La) 0.02193) + AL11LA3 (x(La) 0.21429) |
| AlLa-00Yin.tdb | 799.56 | ALLA (x(La) 0.5) + LIQUID (x(La) 0.75288) + FCC_A1 (x(La) 1) |
| AlLa-00Yin.tdb | 799.56 | ALLA (x(La) 0.5) + LIQUID (x(La) 0.75289) + FCC_A1 (x(La) 1) |
| AlLa-00Yin.tdb | 550 | ALLA (x(La) 0.5) + DHCP (x(La) 1) + FCC_A1 (x(La) 1) |
| AlLa-01Cac.tdb | 1540.12 | LIQUID (x(La) 0.20812) + AL53LA22_C32 (x(La) 0.29333) + AL2LA_C15 (x(La) 0.32834) |
| AlLa-01Cac.tdb | 1540.12 | LIQUID (x(La) 0.20812) + AL53LA22_C32 (x(La) 0.29333) + AL2LA_C15 (x(La) 0.32834) |
| AlLa-01Cac.tdb | 1508.59 | LIQUID (x(La) 0.18988) + AL11LA3_D13 (x(La) 0.21429) + AL53LA22_C32 (x(La) 0.29333) |
| AlLa-01Cac.tdb | 1508.59 | LIQUID (x(La) 0.18972) + AL11LA3_D13 (x(La) 0.21429) + AL53LA22_C32 (x(La) 0.29333) |
| AlLa-01Cac.tdb | 1508.59 | LIQUID (x(La) 0.18978) + AL11LA3_D13 (x(La) 0.21429) + AL53LA22_C32 (x(La) 0.29333) |
| AlLa-01Cac.tdb | 1444.91 | AL11LA3_D13 (x(La) 0.21429) + AL3LA_D019 (x(La) 0.25) + AL53LA22_C32 (x(La) 0.29333) |
| AlLa-01Cac.tdb | 1323.62 | AL3LA_D019 (x(La) 0.25) + AL53LA22_C32 (x(La) 0.29333) + AL2LA_C15 (x(La) 0.33117) |
| AlLa-01Cac.tdb | 1323.62 | AL3LA_D019 (x(La) 0.25) + AL53LA22_C32 (x(La) 0.29333) + AL2LA_C15 (x(La) 0.33117) |
| AlLa-01Cac.tdb | 1200 | AL11LA3_D13 (x(La) 0.21429) + AL11LA3_ALPHA (x(La) 0.21429) + AL3LA_D019 (x(La) 0.25) |
| AlLa-01Cac.tdb | 1200 | LIQUID (x(La) 0.063) + AL11LA3_ALPHA (x(La) 0.21429) + AL11LA3_D13 (x(La) 0.21429) |
| AlLa-01Cac.tdb | 1200 | LIQUID (x(La) 0.06293) + AL11LA3_D13 (x(La) 0.21429) + AL11LA3_ALPHA (x(La) 0.21429) |
| AlLa-01Cac.tdb | 1136.7 | AL2LA_C15 (x(La) 0.37675) + ALLA (x(La) 0.5) + LIQUID (x(La) 0.60282) |
| AlLa-01Cac.tdb | 1116.69 | LIQUID (x(La) 0.94951) + BCC_A2 (x(La) 0.99494) + FCC_A1 (x(La) 0.99988) |
| AlLa-01Cac.tdb | 910.91 | FCC_A1 (x(La) 0) + LIQUID (x(La) 0.02321) + AL11LA3_ALPHA (x(La) 0.21429) |
| AlLa-01Cac.tdb | 910.91 | FCC_A1 (x(La) 0) + LIQUID (x(La) 0.02315) + AL11LA3_ALPHA (x(La) 0.21429) |
| AlLa-01Cac.tdb | 910.91 | FCC_A1 (x(La) 0) + LIQUID (x(La) 0.02313) + AL11LA3_ALPHA (x(La) 0.21429) |
| AlLa-01Cac.tdb | 799.78 | ALLA (x(La) 0.5) + LIQUID (x(La) 0.76697) + FCC_A1 (x(La) 0.99996) |
| AlLa-01Cac.tdb | 799.78 | ALLA (x(La) 0.5) + LIQUID (x(La) 0.76689) + FCC_A1 (x(La) 0.99996) |
| AlLa-01Cac.tdb | 550 | ALLA (x(La) 0.5) + DHCP (x(La) 1) + FCC_A1 (x(La) 1) |
| AlLa-06Zho.tdb | 1513.52 | LIQUID (x(La) 0.23146) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33322) |
| AlLa-06Zho.tdb | 1508.54 | AL11LA3_D13 (x(La) 0.21431) + LIQUID (x(La) 0.22941) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-06Zho.tdb | 1445.51 | AL11LA3_D13 (x(La) 0.2143) + D019_ALLA (x(La) 0.25) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-06Zho.tdb | 1445.51 | AL11LA3_D13 (x(La) 0.2143) + D019_ALLA (x(La) 0.25) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-06Zho.tdb | 1365.56 | D019_ALLA (x(La) 0.25) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33329) |
| AlLa-06Zho.tdb | 1365.56 | D019_ALLA (x(La) 0.25) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33329) |
| AlLa-06Zho.tdb | 1187.13 | AL11LA3_D13 (x(La) 0.21429) + AL11LA3_ALPHA (x(La) 0.21429) + D019_ALLA (x(La) 0.25) |
| AlLa-06Zho.tdb | 1187.13 | AL11LA3_ALPHA (x(La) 0.21429) + AL11LA3_D13 (x(La) 0.21429) + D019_ALLA (x(La) 0.25) |
| AlLa-06Zho.tdb | 1187.12 | LIQUID (x(La) 0.09426) + AL11LA3_D13 (x(La) 0.21428) + AL11LA3_ALPHA (x(La) 0.21429) |
| AlLa-06Zho.tdb | 1146.14 | AL2LA_C15 (x(La) 0.33564) + ALLA (x(La) 0.5) + LIQUID (x(La) 0.5516) |
| AlLa-06Zho.tdb | 1105.67 | LIQUID (x(La) 0.95726) + BCC_A2 (x(La) 0.99222) + FCC_A1 (x(La) 1) |
| AlLa-06Zho.tdb | 901.89 | FCC_A1 (x(La) 0) + LIQUID (x(La) 0.03403) + AL11LA3_ALPHA (x(La) 0.21429) |
| AlLa-06Zho.tdb | 795.62 | ALLA (x(La) 0.5) + D019_ALLA (x(La) 0.75) + LIQUID (x(La) 0.77194) |
| AlLa-06Zho.tdb | 792.84 | D019_ALLA (x(La) 0.75) + LIQUID (x(La) 0.78648) + FCC_A1 (x(La) 1) |
| AlLa-06Zho.tdb | 550 | D019_ALLA (x(La) 0.75) + DHCP (x(La) 1) + FCC_A1 (x(La) 1) |
| AlLa-18Lia.tdb | 1511.51 | LIQUID (x(La) 0.24101) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33333) |
| AlLa-18Lia.tdb | 1511.51 | LIQUID (x(La) 0.24106) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33333) |
| AlLa-18Lia.tdb | 1511.51 | LIQUID (x(La) 0.24112) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33333) |
| AlLa-18Lia.tdb | 1500.04 | AL11LA3_D13 (x(La) 0.21429) + LIQUID (x(La) 0.23593) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-18Lia.tdb | 1500.04 | AL11LA3_D13 (x(La) 0.21429) + LIQUID (x(La) 0.23585) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-18Lia.tdb | 1500.04 | AL11LA3_D13 (x(La) 0.21429) + LIQUID (x(La) 0.2359) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-18Lia.tdb | 1441.98 | AL11LA3_D13 (x(La) 0.21429) + AL3LA_D019 (x(La) 0.25) + AL7LA3_C32 (x(La) 0.3) |
| AlLa-18Lia.tdb | 1363.18 | AL3LA_D019 (x(La) 0.25) + AL7LA3_C32 (x(La) 0.3) + AL2LA_C15 (x(La) 0.33333) |
| AlLa-18Lia.tdb | 1193 | AL2LA_C15 (x(La) 0.33333) + BCC_A2 (x(La) 1) + LIQUID (x(La) 1) |
| AlLa-18Lia.tdb | 1188 | AL11LA3_D13 (x(La) 0.21429) + AL11LA3_LT (x(La) 0.21429) + AL3LA_D019 (x(La) 0.25) |
| AlLa-18Lia.tdb | 1188 | LIQUID (x(La) 0.07149) + AL11LA3_LT (x(La) 0.21429) + AL11LA3_D13 (x(La) 0.21429) |
| AlLa-18Lia.tdb | 1144.11 | AL2LA_C15 (x(La) 0.33333) + ALLA (x(La) 0.5) + LIQUID (x(La) 0.54225) |
| AlLa-18Lia.tdb | 1144.11 | AL2LA_C15 (x(La) 0.33333) + ALLA (x(La) 0.5) + LIQUID (x(La) 0.54223) |
| AlLa-18Lia.tdb | 1106.01 | LIQUID (x(La) 0.91503) + BCC_A2 (x(La) 0.99227) + FCC_A1 (x(La) 1) |
| AlLa-18Lia.tdb | 904.96 | FCC_A1 (x(La) 1.100e-4) + LIQUID (x(La) 0.02212) + AL11LA3_LT (x(La) 0.21429) |
| AlLa-18Lia.tdb | 904.95 | FCC_A1 (x(La) 1.100e-4) + LIQUID (x(La) 0.02201) + AL11LA3_LT (x(La) 0.21429) |
| AlLa-18Lia.tdb | 799.55 | ALLA (x(La) 0.5) + LIQUID (x(La) 0.75283) + FCC_A1 (x(La) 1) |
| AlLa-18Lia.tdb | 799.55 | ALLA (x(La) 0.5) + LIQUID (x(La) 0.75289) + FCC_A1 (x(La) 1) |
| AlLa-18Lia.tdb | 550 | ALLA (x(La) 0.5) + DHCP (x(La) 1) + FCC_A1 (x(La) 1) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/AL/AL-LA.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/AL/AL-LA.json) · [CALPHAD hull AlLa-00Yin](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-LA--AlLa-00Yin.json) · [CALPHAD hull AlLa-01Cac](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-LA--AlLa-01Cac.json) · [CALPHAD hull AlLa-06Zho](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-LA--AlLa-06Zho.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Al–La system (53)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1678.3 | congruent melting: Liq -> Al2La | Liq: La 0.333; Al2La: La 0.333 | model | [1] Zhou 2006 | Table 4, p. 8, row 1; `ORC-XFEWOKIKVG` |  |
| 1678 | congruent melting: Liq -> Al2La | Liq: Al 0.666667, La 0.333333; Al2La: Al 0.666667, La 0.333333 | experimental | [1] Zhou 2006; _cites Buschow 1965_ | Table 4, p. 8, row 2; `ORC-ZAUQXI5FOP` |  |
| 1542 | Liquid + LaAl2 -> La22Al53 | Liquid: La 0.2083; LaAl2: La 0.3283; La22Al53: La 0.2933 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 4; `ORC-NGS573R247` |  |
| 1513.2 | congruent melting: Liq -> Al11La3-β | Liq: La 0.214; Al11La3-β: La 0.214 | model | [1] Zhou 2006 | Table 4, p. 8, row 3; `ORC-FWFJEVCF25` |  |
| 1513 | congruent melting: Liq -> Al11La3-β | Liq: Al 0.785714, La 0.214286; Al11La3-β: Al 0.785714, La 0.214286 | experimental | [1] Zhou 2006; _cites Buschow 1965_ | Table 4, p. 8, row 4; `ORC-CG3PYSUIG5` |  |
| 1513 | Liq + Al2La -> Al7La3 | Al2La: Al 0.666667, La 0.333333; Al7La3: Al 0.7, La 0.3 | experimental | [1] Zhou 2006; _cites Buschow 1965_ | Table 4, p. 8, row 6; `ORC-MWAP6VB57X` |  |
| 1513 | Liq. + LaAl2->LaAlx | L: La 0.245; LaAl2: La 0.333333; LaAlx: La 0.5 | experimental | [3] Yin 2000; _cites Buschow 1965_ | Table 2, p. 3, row 8; `ORC-PWN5VUOFDY` |  |
| 1512.8 | Liq + Al2La -> Al7La3 | Liq: La 0.235; Al2La: La 0.333; Al7La3: La 0.293 | model | [1] Zhou 2006 | Table 4, p. 8, row 5; `ORC-6UK7CYKJAP` |  |
| 1512 | Liq. + LaAl2->LaAlx | L: La 0.241; LaAl2: La 0.333333; LaAlx: La 0.5 | model | [3] Yin 2000 | Table 2, p. 3, row 7; `ORC-JE3V36EKUY` |  |
| 1511 | Liquid + La22Al53 -> βLa3Al11 | Liquid: La 0.19; La22Al53: La 0.2933; βLa3Al11: La 0.2143 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 3; `ORC-6X5OTPIYR4` |  |
| 1505.7 | eutectic: Liq -> Al11La3-β + Al7La3 | Liq: La 0.232; Al11La3-β: La 0.214; Al7La3: La 0.293 | model | [1] Zhou 2006 | Table 4, p. 8, row 7; `ORC-KV77ZLVYUY` |  |
| 1500 | eutectic: Liq.->La3Al11 + LaAlx | L: La 0.236; La3Al11: La 0.214286; LaAlx: La 0.5 | model | [3] Yin 2000 | Table 2, p. 3, row 5; `ORC-UY6OYCFMP5` |  |
| 1493 | eutectic: Liq -> Al11La3-β + Al7La3 | Al11La3-β: Al 0.785714, La 0.214286; Al7La3: Al 0.7, La 0.3 | experimental | [1] Zhou 2006; _cites Buschow 1965_ | Table 4, p. 8, row 8; `ORC-SYPISYJZPG` |  |
| 1493 | eutectic: Liq.->La3Al11 + LaAlx | L: La 0.24; La3Al11: La 0.214286; LaAlx: La 0.5 | experimental | [3] Yin 2000; _cites Buschow 1965_ | Table 2, p. 3, row 6; `ORC-WMFV5B2N4N` |  |
| 1445 | βLa3Al11 + La22Al53 -> LaAl3 | βLa3Al11: La 0.2143; La22Al53: La 0.2933; LaAl3: La 0.25 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 6; `ORC-Y2UHPGN5CX` |  |
| 1443 | Al11La3-β + Al7La3 -> Al3La | Al11La3-β: Al 0.785714, La 0.214286; Al7La3: Al 0.7, La 0.3; Al3La: Al 0.75, La 0.25 | experimental | [1] Zhou 2006; _cites Buschow 1965_ | Table 4, p. 8, row 10; `ORC-3PMNUMVAWF` |  |
| 1443 | LaALx + La3Al11->LaAl3 | LaALx: La 0.3; La3Al11: La 0.214286; LaAl3: La 0.25 | experimental | [3] Yin 2000; _cites Buschow 1965_ | Table 2, p. 3, row 14; `ORC-SBZSBVXVOP` |  |
| 1443 | LaALx + La3Al11->LaAl3 | LaALx: La 0.3; La3Al11: La 0.214286; LaAl3: La 0.25 | model | [3] Yin 2000 | Table 2, p. 3, row 13; `ORC-T2CM4PSXI5` |  |
| 1442.4 | Al11La3-β + Al7La3 -> Al3La | Al11La3-β: La 0.214; Al7La3: La 0.293; Al3La: La 0.25 | model | [1] Zhou 2006 | Table 4, p. 8, row 9; `ORC-NCBNUZDSC7` |  |
| 1363.8 | Al7La3 -> Al3La + Al2La | Al7La3: La 0.293; Al3La: La 0.25; Al2La: La 0.333 | model | [1] Zhou 2006 | Table 4, p. 8, row 11; `ORC-YHVFKXWRVW` |  |
| 1363 | LaAlx->LaAl3 + LaAl2 | LaAlx: La 0.5; LaAl3: La 0.25; LaAl2: La 0.333333 | experimental | [3] Yin 2000; _cites Buschow 1965_ | Table 2, p. 3, row 16; `ORC-CWOR4G2WHB` |  |
| 1363 | LaAlx->LaAl3 + LaAl2 | LaAlx: La 0.5; LaAl3: La 0.25; LaAl2: La 0.333333 | model | [3] Yin 2000 | Table 2, p. 3, row 15; `ORC-GGC55WQQ4Q` |  |
| 1363 | Al7La3 -> Al3La + Al2La | Al7La3: Al 0.7, La 0.3; Al3La: Al 0.75, La 0.25; Al2La: Al 0.666667, La 0.333333 | experimental | [1] Zhou 2006; _cites Buschow 1965_ | Table 4, p. 8, row 12; `ORC-XAYQYGAOMU` |  |
| 1324 | La22Al53 -> LaAl3 + LaAl2 | La22Al53: La 0.2933; LaAl3: La 0.25; LaAl2: La 0.3312 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 5; `ORC-4EJEVALO6M` |  |
| 1188 | polymorphic: Al11La3-β -> Al11La3-α | Al11La3-β: Al 0.785714, La 0.214286; Al11La3-α: Al 0.785714, La 0.214286 | experimental | [1] Zhou 2006; _cites Buschow 1965_ | Table 4, p. 8, row 14; `ORC-MJTVZFWN2D` |  |
| 1187.9 | polymorphic: Al11La3-β -> Al11La3-α | Al11La3-β: La 0.214; Al11La3-α: La 0.25 | model | [1] Zhou 2006 | Table 4, p. 8, row 13; `ORC-BPGE7YYEE3` |  |
| 1146 | Liq + Al2La -> AlLa | Liq: La 0.544; Al2La: La 0.336; AlLa: La 0.5 | model | [1] Zhou 2006 | Table 4, p. 8, row 15; `ORC-3USAK7L65K` |  |
| 1146 | Liq. + LaAl2->LaAl | L: La 0.543; LaAl2: La 0.333333; LaAl: La 0.5 | experimental | [3] Yin 2000; _cites Buschow 1965_ | Table 2, p. 3, row 10; `ORC-ETGUYHXR72` |  |
| 1146 | Liq + Al2La -> AlLa | Al2La: Al 0.666667, La 0.333333; AlLa: Al 0.5, La 0.5 | experimental | [1] Zhou 2006; _cites Buschow 1965_ | Table 4, p. 8, row 16; `ORC-YVXUZSGYR6` |  |
| 1144 | Liq. + LaAl2->LaAl | L: La 0.562; LaAl2: La 0.333333; LaAl: La 0.5 | model | [3] Yin 2000 | Table 2, p. 3, row 9; `ORC-JGFV6AYYOI` |  |
| 1137 | Liquid + LaAl2 -> LaAl | Liquid: La 0.6031; LaAl2: La 0.3769; LaAl: La 0.5 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 8; `ORC-F2ZPWVNEBG` |  |
| 1117 | (γLa) -> Liquid + (βLa) | (γLa): La 0.9949; Liquid: La 0.9495; (βLa): La 0.9999 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 12; `ORC-4CH52RPOLD` |  |
| 1105.2 | bcc -> Liq + fcc | bcc: La 0.956; Liq: La 0.992; fcc: La 1 | model | [1] Zhou 2006 | Table 4, p. 8, row 17; `ORC-BKY6HRSJA3` |  |
| 1105 | bcc -> Liq + fcc |  | experimental | [1] Zhou 2006; _cites Saccone 1996_ | Table 4, p. 8, row 18; `ORC-XXDJ6IMY2V` |  |
| 913 | eutectic: Liquid -> αLa3Al11 + (Al) | Liquid: La 0.0232; αLa3Al11: La 0.2143; (Al): La 0 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 1; `ORC-4Z2MMPHT6I` |  |
| 909 | eutectic: Liq.->fcc-Al+ La3Al11 | L: La 0.026; La3Al11: La 0.214286 | experimental | [3] Yin 2000; _cites Buschow 1965_ | Table 2, p. 3, row 2; `ORC-HH53JTDRM5` |  |
| 907 | eutectic: Liq -> fcc + α-Al11La3 | α-Al11La3: Al 0.785714, La 0.214286 | experimental | [1] Zhou 2006; _cites Kononenko 1990_ | Table 4, p. 8, row 20; `ORC-TRK3JJQVQD` |  |
| 905 | eutectic: Liq.->fcc-Al+ La3Al11 | L: La 0.022; La3Al11: La 0.214286 | model | [3] Yin 2000 | Table 2, p. 3, row 1; `ORC-ELBFMTG7DC` |  |
| 901.1 | eutectic: Liq -> fcc + α-Al11La3 | Liq: La 0.035; fcc: La 0; α-Al11La3: La 0.214 | model | [1] Zhou 2006 | Table 4, p. 8, row 19; `ORC-4GKEYJW2FA` |  |
| 803 | eutectic: Liq.->LaAl+β-La | L: La 0.77; LaAl: La 0.5 | experimental | [3] Yin 2000; _cites Saccone 1996_ [doi](https://doi.org/10.1515/ijmr-1996-870202) | Table 2, p. 3, row 22; `ORC-DX7YJCB3VJ` |  |
| 800.7 | Liquid + LaAl -> La3Al | Liquid: La 0.7669; LaAl: La 0.5; La3Al: La 0.75 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 9; `ORC-32LFOPWZ62` |  |
| 800.6 | eutectic: Liquid -> La3Al + (βLa) | Liquid: La 0.7671; La3Al: La 0.75; (βLa): La 0.9999 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 10; `ORC-PHMR3DBYIC` |  |
| 799.6 | eutectic: Liq.->LaAl+β-La | L: La 0.753; LaAl: La 0.5 | model | [3] Yin 2000 | Table 2, p. 3, row 21; `ORC-QIZTNZZKI5` |  |
| 795.5 | Liq + AlLa -> Al3La | Liq: La 0.765; AlLa: La 0.5; Al3La: La 0.75 | model | [1] Zhou 2006 | Table 4, p. 8, row 21; `ORC-G5DDFW2FTY` |  |
| 794.5 | eutectic: Liq -> Al3La + fcc | Liq: La 0.772; Al3La: La 0.75; fcc: La 1 | model | [1] Zhou 2006 | Table 4, p. 8, row 23; `ORC-CVFWJXNP63` |  |
| 793.6 | LaAl+β-La->LaAl3 | LaAl: La 0.5; LaAl3: La 0.25 | model | [3] Yin 2000 | Table 2, p. 3, row 17; `ORC-BCC3QB6BI7` |  |
| 793 | LaAl+β-La->LaAl3 | LaAl: La 0.5; LaAl3: La 0.25 | experimental | [3] Yin 2000; _cites Saccone 1996_ [doi](https://doi.org/10.1515/ijmr-1996-870202) | Table 2, p. 3, row 18; `ORC-JOSEQV27UY` |  |
| 790 | Liq + AlLa -> Al3La | AlLa: Al 0.5, La 0.5; Al3La: Al 0.75, La 0.25 | experimental | [1] Zhou 2006; _cites Saccone 1996_ | Table 4, p. 8, row 22; `ORC-AADKAADJCT` |  |
| 790 | eutectic: Liq -> Al3La + fcc | Al3La: Al 0.75, La 0.25 | experimental | [1] Zhou 2006; _cites Saccone 1996_ | Table 4, p. 8, row 24; `ORC-AXRX3HDKRV` |  |
| 673.5 | LaAl3->LaAl+β-La | LaAl3: La 0.25; LaAl: La 0.5 | model | [3] Yin 2000 | Table 2, p. 3, row 19; `ORC-6H3XGL3TU7` |  |
| 673 | LaAl3->LaAl+β-La | LaAl3: La 0.25; LaAl: La 0.5 | experimental | [3] Yin 2000; _cites Saccone 1996_ [doi](https://doi.org/10.1515/ijmr-1996-870202) | Table 2, p. 3, row 20; `ORC-RLDK4KCK7Q` |  |
| 672 | La3Al -> LaAl + (βLa) | La3Al: La 0.75; LaAl: La 0.5; (βLa): La 0.9999 | model | [2] Cacciamani 2001 | Table 2, p. 7, row 11; `ORC-UFRWWMGWMU` |  |
| 550 | Fcc + Al3La -> dhcp | Fcc: La 1; Al3La: La 0.75; dhcp: La 1 | model | [1] Zhou 2006 | Table 4, p. 8, row 25; `ORC-UORYZVEILF` |  |

## Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from [dft_parity.json](https://data.orchid-project.org/literature/dft_parity.json).

Table: Enthalpies of formation, Al–La system (2)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Al11La3-α |  | -41 unknown | 298.15 | experimental |  |  | [1] Zhou 2006; _cites Sommer 1988_ [doi](https://doi.org/10.1016/0022-5088%2888%2990092-6) | Table 3, p. 6, row 51; `ORC-PSNHJLTDQR` |  |
| AlLa |  | -45.9 unknown | 298.15 | experimental |  |  | [1] Zhou 2006; _cites Borzone 1997_ [doi](https://doi.org/10.1016/s0925-8388%2896%2902605-9) | Table 3, p. 6, row 49; `ORC-DA2VHZRHWY` |  |

## Other properties

### Phase transition (8)

Table: Phase transition, Al–La system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1200 K | 1200 | βLa3Al11 -> αLa3Al11; _βLa3Al11: La 0.2143; αLa3Al11: La 0.2143_ | model | [2] Cacciamani 2001 | Table 2, p. 7, row 2; `ORC-Z7L2NY3DKR` |  |
| Phase transition | 1506 K | 1506 | Liq.->La3Al11; _L: La 0.214286; La3Al11: La 0.214286_ | model | [3] Yin 2000 | Table 2, p. 3, row 3; `ORC-GXV726WC5Y` |  |
| Phase transition | 1513 K | 1513 | Liq.->La3Al11; _L: La 0.214286; La3Al11: La 0.214286_ | experimental | [3] Yin 2000; _cites Buschow 1965_ | Table 2, p. 3, row 4; `ORC-TJDQZSW3KJ` |  |
| Phase transition | 1513.2 K | 1513.2 | congruent transformation | model | [1] Zhou 2006 | p. 7; `ORC-MKHQ6Y4U33.9b60e5` | “Our model indicates congruent melting at 1513.2 K for the Al11La3-b phase, with a eutectic invariant at 1505.7 K.” |
| Phase transition | 1658 K | 1658 | Liquid -> LaAl2; _Liquid: La 0.3362; LaAl2: La 0.3362_ | model | [2] Cacciamani 2001 | Table 2, p. 7, row 7; `ORC-G4FAFPVW7O` |  |
| Phase transition | 1678 K | 1678 | Liq.->LaAl2; _L: La 0.333333; LaAl2: La 0.333333_ | model | [3] Yin 2000 | Table 2, p. 3, row 11; `ORC-BPHN5KBUZW` |  |
| Phase transition | 1678 K | 1678 | Liq.->LaAl2; _L: La 0.333333; LaAl2: La 0.333333_ | experimental | [3] Yin 2000; _cites Buschow 1965_ | Table 2, p. 3, row 12; `ORC-JXYJ4B7HQT` |  |
| Phase transition | 1678.3 K | 1678.3 | congruent transformation | model | [1] Zhou 2006 | p. 10; `ORC-MPK6R7MAKI` | “Most notably, we report (i) stability of the Al11La3-b phase up to a congruent melting temperature of 1678.3 K, (ii) stability of the AlLa3D019 phase extending down to 0 K, and (iii) liquidus boundaries that offer generally better agreement with experimental observation than previously reported phase diagrams.” |

## Sources

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

1. S.H. Zhou, R.E. Napolitano, Phase equilibria and thermodynamic limits for partitionless crystallization in the Al–La binary system, Acta Materialia 54, 831-840 (2006). [doi:10.1016/j.actamat.2005.10.013](https://doi.org/10.1016/j.actamat.2005.10.013)
2. G. Cacciamani, R. Ferro, Thermodynamic modeling of some aluminium-rare earth binary systems: Al-La, Al-Ce and Al-Nd, Calphad 25, 583-597 (2001). [doi:10.1016/s0364-5916(02)00009-3](https://doi.org/10.1016/s0364-5916%2802%2900009-3)
3. Fucheng Yin, Xuping Su, Zhi Li, Minhwa Huang, Ying Shi, A thermodynamic assessment of the La–Al system, Journal of Alloys and Compounds 302, 169-172 (2000). [doi:10.1016/s0925-8388(00)00679-4](https://doi.org/10.1016/s0925-8388%2800%2900679-4)

## 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-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/).