# Al–Si phases > Al–Si system: 5 phases (tier A 4, liquid 1); 3 stable in a calculated diagram in the ORCHID phase registry, with names, structure type when the stored evidence supports an assignment under the stated tier rules, calculated stability, verbatim TDB PHASE/CONSTITUENT statements and example references. HTML: https://data.orchid-project.org/phases/pages/AL-SI.html · Markdown: https://data.orchid-project.org/phases/pages/AL-SI.md 5 phases (tier A 4, liquid 1); 3 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model). Data: [interactive registry](https://orchid-project.org/phases/?q=AL-SI) · [full JSON](https://data.orchid-project.org/phases/systems/AL-SI.json) · [Al–Si system page](https://data.orchid-project.org/systems/AL-SI.html) · [Markdown](https://data.orchid-project.org/phases/pages/AL-SI.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the Al–Si system (5) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [DIAMOND_A4](#phase-al-si-a4-diamond); _phase:al-si:a4-diamond_ | C (diamond) · A4 · cF8 · Fd-3m (227) | tier A: standard phase name | stable in 5 of 5 calculated diagram(s): 300–1687 K, x(Si) 0.9996–1 | 0 | 6 | | [BCC_A2](#phase-al-si-bcc-a2); _phase:al-si:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | not stable in 5 calculated diagram(s) | 0 | 5 | | [FCC_A1](#phase-al-si-fcc-a1); _phase:al-si:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 5 of 5 calculated diagram(s): 300–936.34 K, x(Si) 0–0.02319 | 0 | 6 | | [HCP_A3](#phase-al-si-hcp-a3); _phase:al-si:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 5 calculated diagram(s) | 0 | 6 | | [LIQUID](#phase-al-si-liquid); _phase:al-si:liquid_ | liquid | liquid | stable in 5 of 5 calculated diagram(s): 850.09–2500 K, x(Si) 0–1 | 1 | 6 | ## DIAMOND_A4 (Al–Si) - Id: `phase:al-si:a4-diamond`; status `assigned` - Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type `st:a4-c-diamond-cf8`; tier A: standard phase name; confidence high - Stability: stable in 5 of 5 calculated diagram(s): 300–1687 K, x(Si) 0.9996–1 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:al-si:a4-diamond) Names (7): _corpus: _corpus:phase:al-si:a4-diamond _tdb: _tdb:AlSi-12Tan.tdb:DIAMOND_A4, tdb:AlSi-14Lia.tdb:DIAMOND_A4, tdb:AlSi-24Zob-3g.tdb:DIAMOND_A4, tdb:AlSi-86Mey.tdb:DIAMOND_A4, tdb:AlSi-96Jac.tdb:DIAMOND_A4, tdb:AlSi-97Feu-LB.tdb:DIAMOND_A4 ### TDB models of DIAMOND_A4 (6): PHASE and CONSTITUENT statements as written [AlSi-12Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-12Tan.tdb): DIAMOND_A4, type code %, sha256 `21db02512088b4f4…` ~~~~text 45: PHASE DIAMOND_A4 % 1 1 ! 46: CONST DIAMOND_A4 : SI : ! ~~~~ [AlSi-14Lia.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-14Lia.tdb): DIAMOND_A4, type code %, sha256 `256542a28352f756…` ~~~~text 43: PHASE DIAMOND_A4 % 1 1 ! 44: CONST DIAMOND_A4 : AL SI% : ! ~~~~ [AlSi-24Zob-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-24Zob-3g.tdb): DIAMOND_A4, type code %, sha256 `b0c946d2832b3267…` ~~~~text 41: PHASE DIAMOND_A4 % 1 1 ! 42: CONST DIAMOND_A4 : SI : ! ~~~~ [AlSi-86Mey.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-86Mey.tdb): DIAMOND_A4, type code %, sha256 `ff4e72f4da77273d…` ~~~~text 45: PHASE DIAMOND_A4 % 1 1 ! 46: CONST DIAMOND_A4 : AL SI% : ! ~~~~ [AlSi-96Jac.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-96Jac.tdb): DIAMOND_A4, type code %, sha256 `2f8447bac48ae55e…` ~~~~text 47: PHASE DIAMOND_A4 % 1 1 ! 48: CONST DIAMOND_A4 : AL SI% : ! ~~~~ [AlSi-97Feu-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-97Feu-LB.tdb): DIAMOND_A4, type code %, sha256 `c8b80517b0495878…` ~~~~text 44: PHASE DIAMOND_A4 % 1 1 ! 45: CONST DIAMOND_A4 : AL SI% : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1016/j.actamat.2014.02.042](https://doi.org/10.1016/j.actamat.2014.02.042) Song-Mao Liang, Rainer Schmid-Fetzer, Phosphorus in Al–Si cast alloys: Thermodynamic prediction of the AlP and eutectic (Si) solidification sequence validated by microstructure and nucleation undercooling data, Acta Materialia 72, 41-56 (2014). _assessment that models this phase_ - [doi:10.1016/j.calphad.2024.102742](https://doi.org/10.1016/j.calphad.2024.102742) O. Zobac, A. Kroupa, A. Dinsdale, Calphad, 87, 102742(2024). _assessment that models this phase_ - [doi:10.1016/j.tca.2011.10.017](https://doi.org/10.1016/j.tca.2011.10.017) Ying Tang, Yong Du, Lijun Zhang, Xiaoming Yuan, George Kaptay, Thermodynamic description of the Al–Mg–Si system using a new formulation for the temperature dependence of the excess Gibbs energy, Thermochimica Acta 527, 131-142 (2012). _assessment that models this phase_ - [doi:10.1016/S0364-5916(96)00033-8](https://doi.org/10.1016/S0364-5916%2896%2900033-8) M.H.G. Jacobs, P.J. Spencer, Calphad, 20, 307-20(1996). _assessment that models this phase_ - [doi:10.1016/S0925-8388(96)02655-2](https://doi.org/10.1016/S0925-8388%2896%2902655-2) H. Feufel, T. Goedecke, H.L. Lukas, F. Aldinger, J. Alloys Compd., 247, 31-42(1997). _assessment that models this phase_ ## BCC_A2 (Al–Si) - Id: `phase:al-si:bcc-a2`; status `assigned` - Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high - Stability: not stable in 5 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:al-si:bcc-a2) Names (6): _corpus: _corpus:phase:al-si:bcc-a2 _tdb: _tdb:AlSi-12Tan.tdb:BCC_A2, tdb:AlSi-14Lia.tdb:BCC_A2, tdb:AlSi-86Mey.tdb:BCC_A2, tdb:AlSi-96Jac.tdb:BCC_A2, tdb:AlSi-97Feu-LB.tdb:BCC_A2 ### TDB models of BCC_A2 (5): PHASE and CONSTITUENT statements as written [AlSi-12Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-12Tan.tdb): BCC_A2, type code %B, sha256 `21db02512088b4f4…` ~~~~text 35: PHASE BCC_A2 %B 2 1 3 ! 36: CONST BCC_A2 : AL SI : VA : ! ~~~~ [AlSi-14Lia.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-14Lia.tdb): BCC_A2, type code %B, sha256 `256542a28352f756…` ~~~~text 33: PHASE BCC_A2 %B 2 1 3 ! 34: CONST BCC_A2 : AL SI : VA : ! ~~~~ [AlSi-86Mey.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-86Mey.tdb): BCC_A2, type code %B, sha256 `ff4e72f4da77273d…` ~~~~text 35: PHASE BCC_A2 %B 2 1 3 ! 36: CONST BCC_A2 : AL SI : VA : ! ~~~~ [AlSi-96Jac.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-96Jac.tdb): BCC_A2, type code %B, sha256 `2f8447bac48ae55e…` ~~~~text 37: PHASE BCC_A2 %B 2 1 3 ! 38: CONST BCC_A2 : AL SI : VA : ! ~~~~ [AlSi-97Feu-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-97Feu-LB.tdb): BCC_A2, type code %B, sha256 `c8b80517b0495878…` ~~~~text 34: PHASE BCC_A2 %B 2 1 3 ! 35: CONST BCC_A2 : AL SI : VA : ! ~~~~ Example references (4 of 4; assessments first): - [doi:10.1016/j.actamat.2014.02.042](https://doi.org/10.1016/j.actamat.2014.02.042) Song-Mao Liang, Rainer Schmid-Fetzer, Phosphorus in Al–Si cast alloys: Thermodynamic prediction of the AlP and eutectic (Si) solidification sequence validated by microstructure and nucleation undercooling data, Acta Materialia 72, 41-56 (2014). _assessment that models this phase_ - [doi:10.1016/j.tca.2011.10.017](https://doi.org/10.1016/j.tca.2011.10.017) Ying Tang, Yong Du, Lijun Zhang, Xiaoming Yuan, George Kaptay, Thermodynamic description of the Al–Mg–Si system using a new formulation for the temperature dependence of the excess Gibbs energy, Thermochimica Acta 527, 131-142 (2012). _assessment that models this phase_ - [doi:10.1016/S0364-5916(96)00033-8](https://doi.org/10.1016/S0364-5916%2896%2900033-8) M.H.G. Jacobs, P.J. Spencer, Calphad, 20, 307-20(1996). _assessment that models this phase_ - [doi:10.1016/S0925-8388(96)02655-2](https://doi.org/10.1016/S0925-8388%2896%2902655-2) H. Feufel, T. Goedecke, H.L. Lukas, F. Aldinger, J. Alloys Compd., 247, 31-42(1997). _assessment that models this phase_ ## FCC_A1 (Al–Si) - Id: `phase:al-si:fcc-a1`; status `assigned` - Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high - Stability: stable in 5 of 5 calculated diagram(s): 300–936.34 K, x(Si) 0–0.02319 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:al-si:fcc-a1) Names (7): _corpus: _corpus:phase:al-si:fcc-a1 _tdb: _tdb:AlSi-12Tan.tdb:FCC_A1, tdb:AlSi-14Lia.tdb:FCC_A1, tdb:AlSi-24Zob-3g.tdb:FCC_A1, tdb:AlSi-86Mey.tdb:FCC_A1, tdb:AlSi-96Jac.tdb:FCC_A1, tdb:AlSi-97Feu-LB.tdb:FCC_A1 ### TDB models of FCC_A1 (6): PHASE and CONSTITUENT statements as written [AlSi-12Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-12Tan.tdb): FCC_A1, type code %A, sha256 `21db02512088b4f4…` ~~~~text 30: PHASE FCC_A1 %A 2 1 1 ! 31: CONST FCC_A1 : AL SI : VA : ! ~~~~ [AlSi-14Lia.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-14Lia.tdb): FCC_A1, type code %A, sha256 `256542a28352f756…` ~~~~text 28: PHASE FCC_A1 %A 2 1 1 ! 29: CONST FCC_A1 : AL SI : VA : ! ~~~~ [AlSi-24Zob-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-24Zob-3g.tdb): FCC_A1, type code %A, sha256 `b0c946d2832b3267…` ~~~~text 26: PHASE FCC_A1 %A 2 1 1 ! 27: CONST FCC_A1 : AL% SI : VA : ! ~~~~ [AlSi-86Mey.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-86Mey.tdb): FCC_A1, type code %A, sha256 `ff4e72f4da77273d…` ~~~~text 30: PHASE FCC_A1 %A 2 1 1 ! 31: CONST FCC_A1 : AL SI : VA : ! ~~~~ [AlSi-96Jac.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-96Jac.tdb): FCC_A1, type code %A, sha256 `2f8447bac48ae55e…` ~~~~text 32: PHASE FCC_A1 %A 2 1 1 ! 33: CONST FCC_A1 : AL SI : VA : ! ~~~~ [AlSi-97Feu-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-97Feu-LB.tdb): FCC_A1, type code %A, sha256 `c8b80517b0495878…` ~~~~text 29: PHASE FCC_A1 %A 2 1 1 ! 30: CONST FCC_A1 : AL SI : VA : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1016/j.actamat.2014.02.042](https://doi.org/10.1016/j.actamat.2014.02.042) Song-Mao Liang, Rainer Schmid-Fetzer, Phosphorus in Al–Si cast alloys: Thermodynamic prediction of the AlP and eutectic (Si) solidification sequence validated by microstructure and nucleation undercooling data, Acta Materialia 72, 41-56 (2014). _assessment that models this phase_ - [doi:10.1016/j.calphad.2024.102742](https://doi.org/10.1016/j.calphad.2024.102742) O. Zobac, A. Kroupa, A. Dinsdale, Calphad, 87, 102742(2024). _assessment that models this phase_ - [doi:10.1016/j.tca.2011.10.017](https://doi.org/10.1016/j.tca.2011.10.017) Ying Tang, Yong Du, Lijun Zhang, Xiaoming Yuan, George Kaptay, Thermodynamic description of the Al–Mg–Si system using a new formulation for the temperature dependence of the excess Gibbs energy, Thermochimica Acta 527, 131-142 (2012). _assessment that models this phase_ - [doi:10.1016/S0364-5916(96)00033-8](https://doi.org/10.1016/S0364-5916%2896%2900033-8) M.H.G. Jacobs, P.J. Spencer, Calphad, 20, 307-20(1996). _assessment that models this phase_ - [doi:10.1016/S0925-8388(96)02655-2](https://doi.org/10.1016/S0925-8388%2896%2902655-2) H. Feufel, T. Goedecke, H.L. Lukas, F. Aldinger, J. Alloys Compd., 247, 31-42(1997). _assessment that models this phase_ ## HCP_A3 (Al–Si) - Id: `phase:al-si:hcp-a3`; status `assigned` - Structure: Mg · A3 · hP2 · P6_3/mmc (194); type `st:a3-mg-hp2`; tier A: standard phase name; confidence high - Stability: not stable in 5 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:al-si:hcp-a3) Names (7): _corpus: _corpus:phase:al-si:hcp-a3 _tdb: _tdb:AlSi-12Tan.tdb:HCP_A3, tdb:AlSi-14Lia.tdb:HCP_A3, tdb:AlSi-24Zob-3g.tdb:HCP_A3, tdb:AlSi-86Mey.tdb:HCP_A3, tdb:AlSi-96Jac.tdb:HCP_A3, tdb:AlSi-97Feu-LB.tdb:HCP_A3 ### TDB models of HCP_A3 (6): PHASE and CONSTITUENT statements as written [AlSi-12Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-12Tan.tdb): HCP_A3, type code %A, sha256 `21db02512088b4f4…` ~~~~text 40: PHASE HCP_A3 %A 2 1 0.5 ! 41: CONST HCP_A3 : AL SI : VA : ! ~~~~ [AlSi-14Lia.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-14Lia.tdb): HCP_A3, type code %A, sha256 `256542a28352f756…` ~~~~text 38: PHASE HCP_A3 %A 2 1 0.5 ! 39: CONST HCP_A3 : AL SI : VA : ! ~~~~ [AlSi-24Zob-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-24Zob-3g.tdb): HCP_A3, type code %A, sha256 `b0c946d2832b3267…` ~~~~text 36: PHASE HCP_A3 %A 2 1 0.5 ! 37: CONST HCP_A3 : AL SI : VA : ! ~~~~ [AlSi-86Mey.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-86Mey.tdb): HCP_A3, type code %A, sha256 `ff4e72f4da77273d…` ~~~~text 40: PHASE HCP_A3 %A 2 1 0.5 ! 41: CONST HCP_A3 : AL SI : VA : ! ~~~~ [AlSi-96Jac.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-96Jac.tdb): HCP_A3, type code %A, sha256 `2f8447bac48ae55e…` ~~~~text 42: PHASE HCP_A3 %A 2 1 0.5 ! 43: CONST HCP_A3 : AL SI : VA : ! ~~~~ [AlSi-97Feu-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-97Feu-LB.tdb): HCP_A3, type code %A, sha256 `c8b80517b0495878…` ~~~~text 39: PHASE HCP_A3 %A 2 1 0.5 ! 40: CONST HCP_A3 : AL SI : VA : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1016/j.actamat.2014.02.042](https://doi.org/10.1016/j.actamat.2014.02.042) Song-Mao Liang, Rainer Schmid-Fetzer, Phosphorus in Al–Si cast alloys: Thermodynamic prediction of the AlP and eutectic (Si) solidification sequence validated by microstructure and nucleation undercooling data, Acta Materialia 72, 41-56 (2014). _assessment that models this phase_ - [doi:10.1016/j.calphad.2024.102742](https://doi.org/10.1016/j.calphad.2024.102742) O. Zobac, A. Kroupa, A. Dinsdale, Calphad, 87, 102742(2024). _assessment that models this phase_ - [doi:10.1016/j.tca.2011.10.017](https://doi.org/10.1016/j.tca.2011.10.017) Ying Tang, Yong Du, Lijun Zhang, Xiaoming Yuan, George Kaptay, Thermodynamic description of the Al–Mg–Si system using a new formulation for the temperature dependence of the excess Gibbs energy, Thermochimica Acta 527, 131-142 (2012). _assessment that models this phase_ - [doi:10.1016/S0364-5916(96)00033-8](https://doi.org/10.1016/S0364-5916%2896%2900033-8) M.H.G. Jacobs, P.J. Spencer, Calphad, 20, 307-20(1996). _assessment that models this phase_ - [doi:10.1016/S0925-8388(96)02655-2](https://doi.org/10.1016/S0925-8388%2896%2902655-2) H. Feufel, T. Goedecke, H.L. Lukas, F. Aldinger, J. Alloys Compd., 247, 31-42(1997). _assessment that models this phase_ ## LIQUID (Al–Si) - Id: `phase:al-si:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 5 of 5 calculated diagram(s): 850.09–2500 K, x(Si) 0–1 - Literature: 1 values (0 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:al-si:liquid) Names (8): _corpus: _corpus:phase:al-si:liquid _paper: _paper:sha256-85fd53a1a176b694:Liquid _tdb: _tdb:AlSi-12Tan.tdb:LIQUID, tdb:AlSi-14Lia.tdb:LIQUID, tdb:AlSi-24Zob-3g.tdb:LIQUID, tdb:AlSi-86Mey.tdb:LIQUID, tdb:AlSi-96Jac.tdb:LIQUID, tdb:AlSi-97Feu-LB.tdb:LIQUID ### TDB models of LIQUID (6): PHASE and CONSTITUENT statements as written [AlSi-12Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-12Tan.tdb): LIQUID, type code %, sha256 `21db02512088b4f4…` ~~~~text 25: PHASE LIQUID:L % 1 1 ! 26: CONST LIQUID:L : AL SI : ! ~~~~ [AlSi-14Lia.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-14Lia.tdb): LIQUID, type code %, sha256 `256542a28352f756…` ~~~~text 23: PHASE LIQUID:L % 1 1 ! 24: CONST LIQUID:L : AL SI : ! ~~~~ [AlSi-24Zob-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-24Zob-3g.tdb): LIQUID, type code %, sha256 `b0c946d2832b3267…` ~~~~text 21: PHASE LIQUID:L % 1 1 ! 22: CONST LIQUID:L : AL SI : ! ~~~~ [AlSi-86Mey.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-86Mey.tdb): LIQUID, type code %, sha256 `ff4e72f4da77273d…` ~~~~text 25: PHASE LIQUID:L % 1 1 ! 26: CONST LIQUID:L : AL SI : ! ~~~~ [AlSi-96Jac.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-96Jac.tdb): LIQUID, type code %, sha256 `2f8447bac48ae55e…` ~~~~text 27: PHASE LIQUID:L % 1 1 ! 28: CONST LIQUID:L : AL SI : ! ~~~~ [AlSi-97Feu-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AlSi-97Feu-LB.tdb): LIQUID, type code %, sha256 `c8b80517b0495878…` ~~~~text 24: PHASE LIQUID:L % 1 1 ! 25: CONST LIQUID:L : AL SI : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1016/j.actamat.2014.02.042](https://doi.org/10.1016/j.actamat.2014.02.042) Song-Mao Liang, Rainer Schmid-Fetzer, Phosphorus in Al–Si cast alloys: Thermodynamic prediction of the AlP and eutectic (Si) solidification sequence validated by microstructure and nucleation undercooling data, Acta Materialia 72, 41-56 (2014). _assessment that models this phase_ - [doi:10.1016/j.calphad.2024.102742](https://doi.org/10.1016/j.calphad.2024.102742) O. Zobac, A. Kroupa, A. Dinsdale, Calphad, 87, 102742(2024). _assessment that models this phase_ - [doi:10.1016/j.tca.2011.10.017](https://doi.org/10.1016/j.tca.2011.10.017) Ying Tang, Yong Du, Lijun Zhang, Xiaoming Yuan, George Kaptay, Thermodynamic description of the Al–Mg–Si system using a new formulation for the temperature dependence of the excess Gibbs energy, Thermochimica Acta 527, 131-142 (2012). _assessment that models this phase_ - [doi:10.1016/S0364-5916(96)00033-8](https://doi.org/10.1016/S0364-5916%2896%2900033-8) M.H.G. Jacobs, P.J. Spencer, Calphad, 20, 307-20(1996). _assessment that models this phase_ - [doi:10.1016/S0925-8388(96)02655-2](https://doi.org/10.1016/S0925-8388%2896%2902655-2) H. Feufel, T. Goedecke, H.L. Lukas, F. Aldinger, J. Alloys Compd., 247, 31-42(1997). _assessment that models this phase_ ## Please cite - R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735970 - 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 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); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). 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_phase_registry_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Registry: phase registry of binary systems}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735970}, url = {https://doi.org/10.5281/zenodo.23735970}, 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 the ORCHID phase registry and the sources named on the page (TDB assessments, Hallstedt 2025, Materials Project, OQMD). TDB statements are quoted as written; parameter expressions are not reproduced. Field reference: [SCHEMA.md](https://data.orchid-project.org/phases/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt).