# Ca–Mg phases > Ca–Mg system: 9 phases (tier A 7, liquid 1, needs_review 1); 6 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/CA-MG.html · Markdown: https://data.orchid-project.org/phases/pages/CA-MG.md 9 phases (tier A 7, liquid 1, needs_review 1); 6 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=CA-MG) · [full JSON](https://data.orchid-project.org/phases/systems/CA-MG.json) · [Ca–Mg system page](https://data.orchid-project.org/systems/CA-MG.html) · [Markdown](https://data.orchid-project.org/phases/pages/CA-MG.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the Ca–Mg system (9) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [AL12MG17_A12](#phase-ca-mg-a12-al12mg17); _phase:ca-mg:a12-al12mg17_ | | needs_review | not stable in 1 calculated diagram(s) | 0 | 1 | | [BCC_A2](#phase-ca-mg-bcc-a2); _phase:ca-mg:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 6 of 6 calculated diagram(s): 680–1158.27 K, x(Mg) 0–0.66 | 6 | 6 | | [C14_LAVES](#phase-ca-mg-c14-laves); _phase:ca-mg:c14-laves_ | MgZn2 · C14 · hP12 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–984.7 K, x(Mg) 0.65941–0.6703 | 0 | 1 | | [C15_LAVES](#phase-ca-mg-c15-laves); _phase:ca-mg:c15-laves_ | Cu2Mg · C15 · cF24 · Fd-3m (227) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 | | [C36_LAVES](#phase-ca-mg-c36-laves); _phase:ca-mg:c36-laves_ | MgNi2 · C36 · hP24 · P6_3/mmc (194) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 | | [CAMG2_C14](#phase-ca-mg-camg2-c14); _phase:ca-mg:camg2-c14_ | MgZn2 · C14 · hP12 · P6_3/mmc (194) | tier A: standard phase name | stable in 5 of 5 calculated diagram(s): 300–987.68 K, x(Mg) 0.6611–0.66763 | 15 | 5 | | [FCC_A1](#phase-ca-mg-fcc-a1); _phase:ca-mg:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 6 of 6 calculated diagram(s): 300–716.03 K, x(Mg) 0–0.27 | 9 | 6 | | [HCP_A3](#phase-ca-mg-hcp-a3); _phase:ca-mg:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 6 of 6 calculated diagram(s): 300–2499.9 K, x(Mg) 0.99479–1 | 5 | 6 | | [LIQUID](#phase-ca-mg-liquid); _phase:ca-mg:liquid_ | liquid | liquid | stable in 6 of 6 calculated diagram(s): 710.13–2500 K, x(Mg) 0–1 | 20 | 6 | ## AL12MG17_A12 (Ca–Mg) - Id: `phase:ca-mg:a12-al12mg17`; status `needs_review` - No structure assigned. Why: unrecognised_name_tokens:AL12MG17 - Candidate (name_token): alpha-Mn · A12 · cI58 · I-43m (217) — Strukturbericht/word 'A12' in the TDB name - Candidate (sgte_mmc2): alpha-Mn · A12 · cI58 · I-43m (217) — Hallstedt 2025 mmc2 row for AL12MG17_A12: Al12Mg17 (AlMg-gamma) - Candidate (tdb_comment): alpha-Mn · cI58 · I-43m — CaMg-23Hal.tdb: 'Prototype alpha-Mn (cI58, I-43m), also known as ALMG_GAMMA' - Stability: not stable in 1 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:a12-al12mg17) Names (2): _corpus: _corpus:phase:ca-mg:a12-al12mg17 _tdb: _tdb:CaMg-23Hal.tdb:AL12MG17_A12 ### TDB models of AL12MG17_A12 (1): PHASE and CONSTITUENT statements as written [CaMg-23Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-23Hal.tdb): AL12MG17_A12, type code %, sha256 `76c9ca1f4d8ffe00…` ~~~~text 72: PHASE AL12MG17_A12 % 3 5 12 12 ! 73: CONST AL12MG17_A12 : CA MG : CA MG : CA MG : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2023.102577](https://doi.org/10.1016/j.calphad.2023.102577) B. Hallstedt, M. Noori, Calphad, 82, 102577(2023). _assessment that models this phase_ ## BCC_A2 (Ca–Mg) - Id: `phase:ca-mg:bcc-a2`; status `assigned` - Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high - Stability: stable in 6 of 6 calculated diagram(s): 680–1158.27 K, x(Mg) 0–0.66 - Literature: 6 values (6 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:bcc-a2) Names (9): _corpus: _corpus:phase:ca-mg:bcc-a2 _paper: _paper:10.1016/j.jallcom.2005.10.033:bcc (A2), paper:10.1179/cmq.2005.44.4.523:Ca-bcc _tdb: _tdb:CaMg-05Isl.tdb:BCC_A2, tdb:CaMg-06Zho.tdb:BCC_A2, tdb:CaMg-08Koz.tdb:BCC_A2, tdb:CaMg-23Hal.tdb:BCC_A2, tdb:CaMg-93Hal.tdb:BCC_A2, tdb:CaMg-95Aga-LB.tdb:BCC_A2 ### TDB models of BCC_A2 (6): PHASE and CONSTITUENT statements as written [CaMg-05Isl.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-05Isl.tdb): BCC_A2, type code %B, sha256 `89c94b67c9020742…` ~~~~text 32: PHASE BCC_A2 %B 2 1 3 ! 33: CONST BCC_A2 : CA% MG : VA : ! ~~~~ [CaMg-06Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-06Zho.tdb): BCC_A2, type code %B, sha256 `4975fabd57c900d5…` ~~~~text 36: PHASE BCC_A2 %B 2 1 3 ! 37: CONST BCC_A2 : CA% MG : VA : ! ~~~~ [CaMg-08Koz.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-08Koz.tdb): BCC_A2, type code %B, sha256 `4be2efab4bdbe808…` ~~~~text 34: PHASE BCC_A2 %B 2 1 3 ! 35: CONST BCC_A2 : CA% MG : VA : ! ~~~~ [CaMg-23Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-23Hal.tdb): BCC_A2, type code %B, sha256 `76c9ca1f4d8ffe00…` ~~~~text 62: PHASE BCC_A2 %B 2 1 3 ! 63: CONST BCC_A2 : CA% MG : VA : ! ~~~~ [CaMg-93Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-93Hal.tdb): BCC_A2, type code %B, sha256 `c8851e28a70ea868…` ~~~~text 30: PHASE BCC_A2 %B 2 1 3 ! 31: CONST BCC_A2 : CA% MG : VA : ! ~~~~ [CaMg-95Aga-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-95Aga-LB.tdb): BCC_A2, type code %B, sha256 `67902d2e36bf24aa…` ~~~~text 30: PHASE BCC_A2 %B 2 1 3 ! 31: CONST BCC_A2 : CA% MG : VA : ! ~~~~ Example references (6 of 6; assessments first): - [doi:10.1016/j.jallcom.2005.10.033](https://doi.org/10.1016/j.jallcom.2005.10.033) Yu Zhong, Koray Ozturk, Jorge O. Sofo, Zi-Kui Liu, Contribution of first-principles energetics to the Ca–Mg thermodynamic modeling, Journal of Alloys and Compounds 420, 98-106 (2006). _assessment that models this phase; reports values for this phase_ - [doi:10.1179/cmq.2005.44.4.523](https://doi.org/10.1179/cmq.2005.44.4.523) F. ISLAM, M. MEDRAJ, THERMODYNAMIC MODELLING OF THE Mg-Al-Ca SYSTEM, Canadian Metallurgical Quarterly 44, 523-536 (2005). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/BF02667878](https://doi.org/10.1007/BF02667878) B. Hallstedt, J. Phase Equilib., 14, 662-75(1993). _assessment that models this phase_ - [doi:10.1016/j.calphad.2023.102577](https://doi.org/10.1016/j.calphad.2023.102577) B. Hallstedt, M. Noori, Calphad, 82, 102577(2023). _assessment that models this phase_ - [doi:10.1016/j.intermet.2007.10.010](https://doi.org/10.1016/j.intermet.2007.10.010) A. Kozlov, M. Ohno, R. Arroyave, Z.K. Liu, R. Schmid-Fetzer, Phase equilibria, thermodynamics and solidification microstructures of Mg–Sn–Ca alloys, Part 1: Experimental investigation and thermodynamic modeling of the ternary Mg–Sn–Ca system, Intermetallics 16, 299-315 (2008). _assessment that models this phase_ - [doi:10.1515/ijmr-1995-860206](https://doi.org/10.1515/ijmr-1995-860206) R. Agarwal, J.J. Lee, H.L. Lukas, F. Sommer, Z. Metallkd., 86, 103-8(1995). _assessment that models this phase_ ## C14_LAVES (Ca–Mg) - Id: `phase:ca-mg:c14-laves`; status `assigned` - Structure: MgZn2 · C14 · hP12 · P6_3/mmc (194); type `st:c14-mgzn2-hp12`; tier A: standard phase name; confidence high - Caveat: partitioned order/disorder model in CaMg-23Hal.tdb also describes the disordered state - Stability: stable in 1 of 1 calculated diagram(s): 300–984.7 K, x(Mg) 0.65941–0.6703 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:c14-laves) Names (2): _corpus: _corpus:phase:ca-mg:c14-laves _tdb: _tdb:CaMg-23Hal.tdb:C14_LAVES ### TDB models of C14_LAVES (1): PHASE and CONSTITUENT statements as written [CaMg-23Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-23Hal.tdb): C14_LAVES, type code %, sha256 `76c9ca1f4d8ffe00…` ~~~~text 77: PHASE C14_LAVES % 3 1 2 3 ! 78: CONST C14_LAVES : CA MG% : CA% MG : CA MG% : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2023.102577](https://doi.org/10.1016/j.calphad.2023.102577) B. Hallstedt, M. Noori, Calphad, 82, 102577(2023). _assessment that models this phase_ ## C15_LAVES (Ca–Mg) - Id: `phase:ca-mg:c15-laves`; status `assigned` - Structure: Cu2Mg · C15 · cF24 · Fd-3m (227); type `st:c15-cu2mg-cf24`; tier A: standard phase name; confidence high - Caveat: partitioned order/disorder model in CaMg-23Hal.tdb also describes the disordered state - Stability: not stable in 1 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:c15-laves) Names (2): _corpus: _corpus:phase:ca-mg:c15-laves _tdb: _tdb:CaMg-23Hal.tdb:C15_LAVES ### TDB models of C15_LAVES (1): PHASE and CONSTITUENT statements as written [CaMg-23Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-23Hal.tdb): C15_LAVES, type code %, sha256 `76c9ca1f4d8ffe00…` ~~~~text 82: PHASE C15_LAVES % 2 2 4 ! 83: CONST C15_LAVES : CA% MG : CA MG% : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2023.102577](https://doi.org/10.1016/j.calphad.2023.102577) B. Hallstedt, M. Noori, Calphad, 82, 102577(2023). _assessment that models this phase_ ## C36_LAVES (Ca–Mg) - Id: `phase:ca-mg:c36-laves`; status `assigned` - Structure: MgNi2 · C36 · hP24 · P6_3/mmc (194); type `st:c36-mgni2-hp24`; tier A: standard phase name; confidence high - Caveat: partitioned order/disorder model in CaMg-23Hal.tdb also describes the disordered state - Stability: not stable in 1 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:c36-laves) Names (2): _corpus: _corpus:phase:ca-mg:c36-laves _tdb: _tdb:CaMg-23Hal.tdb:C36_LAVES ### TDB models of C36_LAVES (1): PHASE and CONSTITUENT statements as written [CaMg-23Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-23Hal.tdb): C36_LAVES, type code %, sha256 `76c9ca1f4d8ffe00…` ~~~~text 87: PHASE C36_LAVES % 4 1 1 1 3 ! 88: CONST C36_LAVES : CA MG : CA MG : CA MG : CA MG : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2023.102577](https://doi.org/10.1016/j.calphad.2023.102577) B. Hallstedt, M. Noori, Calphad, 82, 102577(2023). _assessment that models this phase_ ## CAMG2_C14 (Ca–Mg) - Id: `phase:ca-mg:camg2-c14`; status `assigned` - Structure: MgZn2 · C14 · hP12 · P6_3/mmc (194); type `st:c14-mgzn2-hp12`; tier A: standard phase name; confidence high - Caveat: partitioned order/disorder model in CaMg-06Zho.tdb also describes the disordered state - Stability: stable in 5 of 5 calculated diagram(s): 300–987.68 K, x(Mg) 0.6611–0.66763 - Literature: 15 values (15 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:camg2-c14) Names (8): _corpus: _corpus:phase:ca-mg:camg2-c14 _paper: _paper:10.1016/j.jallcom.2005.10.033:C14, paper:10.1179/cmq.2005.44.4.523:Mg2Ca _tdb: _tdb:CaMg-05Isl.tdb:CAMG2_C14, tdb:CaMg-06Zho.tdb:CAMG2_C14, tdb:CaMg-08Koz.tdb:CAMG2_C14, tdb:CaMg-93Hal.tdb:CAMG2_C14, tdb:CaMg-95Aga-LB.tdb:CAMG2_C14 ### TDB models of CAMG2_C14 (5): PHASE and CONSTITUENT statements as written [CaMg-05Isl.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-05Isl.tdb): CAMG2_C14, type code %, sha256 `89c94b67c9020742…` ~~~~text 42: PHASE CAMG2_C14 % 2 1 2 ! 43: CONST CAMG2_C14 : CA : MG : ! ~~~~ [CaMg-06Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-06Zho.tdb): CAMG2_C14, type code %, sha256 `4975fabd57c900d5…` ~~~~text 46: PHASE CAMG2_C14 % 2 1 2 ! 47: CONST CAMG2_C14 : CA% MG : CA MG% : ! ~~~~ [CaMg-08Koz.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-08Koz.tdb): CAMG2_C14, type code %, sha256 `4be2efab4bdbe808…` ~~~~text 44: PHASE CAMG2_C14 % 2 1 2 ! 45: CONST CAMG2_C14 : CA : MG : ! ~~~~ [CaMg-93Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-93Hal.tdb): CAMG2_C14, type code %, sha256 `c8851e28a70ea868…` ~~~~text 40: PHASE CAMG2_C14 % 2 1 2 ! 41: CONST CAMG2_C14 : CA : MG : ! ~~~~ [CaMg-95Aga-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-95Aga-LB.tdb): CAMG2_C14, type code %, sha256 `67902d2e36bf24aa…` ~~~~text 40: PHASE CAMG2_C14 % 2 1 2 ! 41: CONST CAMG2_C14 : CA : MG : ! ~~~~ Example references (5 of 5; assessments first): - [doi:10.1179/cmq.2005.44.4.523](https://doi.org/10.1179/cmq.2005.44.4.523) F. ISLAM, M. MEDRAJ, THERMODYNAMIC MODELLING OF THE Mg-Al-Ca SYSTEM, Canadian Metallurgical Quarterly 44, 523-536 (2005). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.jallcom.2005.10.033](https://doi.org/10.1016/j.jallcom.2005.10.033) Yu Zhong, Koray Ozturk, Jorge O. Sofo, Zi-Kui Liu, Contribution of first-principles energetics to the Ca–Mg thermodynamic modeling, Journal of Alloys and Compounds 420, 98-106 (2006). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/BF02667878](https://doi.org/10.1007/BF02667878) B. Hallstedt, J. Phase Equilib., 14, 662-75(1993). _assessment that models this phase_ - [doi:10.1016/j.intermet.2007.10.010](https://doi.org/10.1016/j.intermet.2007.10.010) A. Kozlov, M. Ohno, R. Arroyave, Z.K. Liu, R. Schmid-Fetzer, Phase equilibria, thermodynamics and solidification microstructures of Mg–Sn–Ca alloys, Part 1: Experimental investigation and thermodynamic modeling of the ternary Mg–Sn–Ca system, Intermetallics 16, 299-315 (2008). _assessment that models this phase_ - [doi:10.1515/ijmr-1995-860206](https://doi.org/10.1515/ijmr-1995-860206) R. Agarwal, J.J. Lee, H.L. Lukas, F. Sommer, Z. Metallkd., 86, 103-8(1995). _assessment that models this phase_ ## FCC_A1 (Ca–Mg) - Id: `phase:ca-mg: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 6 of 6 calculated diagram(s): 300–716.03 K, x(Mg) 0–0.27 - Literature: 9 values (9 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:fcc-a1) Names (9): _corpus: _corpus:phase:ca-mg:fcc-a1 _paper: _paper:10.1016/j.jallcom.2005.10.033:fcc (A1), paper:10.1179/cmq.2005.44.4.523:Ca-fcc _tdb: _tdb:CaMg-05Isl.tdb:FCC_A1, tdb:CaMg-06Zho.tdb:FCC_A1, tdb:CaMg-08Koz.tdb:FCC_A1, tdb:CaMg-23Hal.tdb:FCC_A1, tdb:CaMg-93Hal.tdb:FCC_A1, tdb:CaMg-95Aga-LB.tdb:FCC_A1 ### TDB models of FCC_A1 (6): PHASE and CONSTITUENT statements as written [CaMg-05Isl.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-05Isl.tdb): FCC_A1, type code %A, sha256 `89c94b67c9020742…` ~~~~text 27: PHASE FCC_A1 %A 2 1 1 ! 28: CONST FCC_A1 : CA% MG : VA : ! ~~~~ [CaMg-06Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-06Zho.tdb): FCC_A1, type code %A, sha256 `4975fabd57c900d5…` ~~~~text 31: PHASE FCC_A1 %A 2 1 1 ! 32: CONST FCC_A1 : CA% MG : VA : ! ~~~~ [CaMg-08Koz.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-08Koz.tdb): FCC_A1, type code %A, sha256 `4be2efab4bdbe808…` ~~~~text 29: PHASE FCC_A1 %A 2 1 1 ! 30: CONST FCC_A1 : CA% MG : VA : ! ~~~~ [CaMg-23Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-23Hal.tdb): FCC_A1, type code %A, sha256 `76c9ca1f4d8ffe00…` ~~~~text 57: PHASE FCC_A1 %A 2 1 1 ! 58: CONST FCC_A1 : CA% MG : VA : ! ~~~~ [CaMg-93Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-93Hal.tdb): FCC_A1, type code %A, sha256 `c8851e28a70ea868…` ~~~~text 25: PHASE FCC_A1 %A 2 1 1 ! 26: CONST FCC_A1 : CA% MG : VA : ! ~~~~ [CaMg-95Aga-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-95Aga-LB.tdb): FCC_A1, type code %A, sha256 `67902d2e36bf24aa…` ~~~~text 25: PHASE FCC_A1 %A 2 1 1 ! 26: CONST FCC_A1 : CA% MG : VA : ! ~~~~ Example references (6 of 6; assessments first): - [doi:10.1179/cmq.2005.44.4.523](https://doi.org/10.1179/cmq.2005.44.4.523) F. ISLAM, M. MEDRAJ, THERMODYNAMIC MODELLING OF THE Mg-Al-Ca SYSTEM, Canadian Metallurgical Quarterly 44, 523-536 (2005). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/j.jallcom.2005.10.033](https://doi.org/10.1016/j.jallcom.2005.10.033) Yu Zhong, Koray Ozturk, Jorge O. Sofo, Zi-Kui Liu, Contribution of first-principles energetics to the Ca–Mg thermodynamic modeling, Journal of Alloys and Compounds 420, 98-106 (2006). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/BF02667878](https://doi.org/10.1007/BF02667878) B. Hallstedt, J. Phase Equilib., 14, 662-75(1993). _assessment that models this phase_ - [doi:10.1016/j.calphad.2023.102577](https://doi.org/10.1016/j.calphad.2023.102577) B. Hallstedt, M. Noori, Calphad, 82, 102577(2023). _assessment that models this phase_ - [doi:10.1016/j.intermet.2007.10.010](https://doi.org/10.1016/j.intermet.2007.10.010) A. Kozlov, M. Ohno, R. Arroyave, Z.K. Liu, R. Schmid-Fetzer, Phase equilibria, thermodynamics and solidification microstructures of Mg–Sn–Ca alloys, Part 1: Experimental investigation and thermodynamic modeling of the ternary Mg–Sn–Ca system, Intermetallics 16, 299-315 (2008). _assessment that models this phase_ - [doi:10.1515/ijmr-1995-860206](https://doi.org/10.1515/ijmr-1995-860206) R. Agarwal, J.J. Lee, H.L. Lukas, F. Sommer, Z. Metallkd., 86, 103-8(1995). _assessment that models this phase_ ## HCP_A3 (Ca–Mg) - Id: `phase:ca-mg: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: stable in 6 of 6 calculated diagram(s): 300–2499.9 K, x(Mg) 0.99479–1 - Literature: 5 values (5 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:hcp-a3) Names (8): _corpus: _corpus:phase:ca-mg:hcp-a3 _paper: _paper:10.1179/cmq.2005.44.4.523:Mg-hcp _tdb: _tdb:CaMg-05Isl.tdb:HCP_A3, tdb:CaMg-06Zho.tdb:HCP_A3, tdb:CaMg-08Koz.tdb:HCP_A3, tdb:CaMg-23Hal.tdb:HCP_A3, tdb:CaMg-93Hal.tdb:HCP_A3, tdb:CaMg-95Aga-LB.tdb:HCP_A3 ### TDB models of HCP_A3 (6): PHASE and CONSTITUENT statements as written [CaMg-05Isl.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-05Isl.tdb): HCP_A3, type code %A, sha256 `89c94b67c9020742…` ~~~~text 37: PHASE HCP_A3 %A 2 1 0.5 ! 38: CONST HCP_A3 : CA MG% : VA : ! ~~~~ [CaMg-06Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-06Zho.tdb): HCP_A3, type code %A, sha256 `4975fabd57c900d5…` ~~~~text 41: PHASE HCP_A3 %A 2 1 0.5 ! 42: CONST HCP_A3 : CA MG% : VA : ! ~~~~ [CaMg-08Koz.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-08Koz.tdb): HCP_A3, type code %A, sha256 `4be2efab4bdbe808…` ~~~~text 39: PHASE HCP_A3 %A 2 1 0.5 ! 40: CONST HCP_A3 : CA MG% : VA : ! ~~~~ [CaMg-23Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-23Hal.tdb): HCP_A3, type code %A, sha256 `76c9ca1f4d8ffe00…` ~~~~text 67: PHASE HCP_A3 %A 2 1 0.5 ! 68: CONST HCP_A3 : CA MG% : VA : ! ~~~~ [CaMg-93Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-93Hal.tdb): HCP_A3, type code %A, sha256 `c8851e28a70ea868…` ~~~~text 35: PHASE HCP_A3 %A 2 1 0.5 ! 36: CONST HCP_A3 : CA MG% : VA : ! ~~~~ [CaMg-95Aga-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-95Aga-LB.tdb): HCP_A3, type code %A, sha256 `67902d2e36bf24aa…` ~~~~text 35: PHASE HCP_A3 %A 2 1 0.5 ! 36: CONST HCP_A3 : CA MG% : VA : ! ~~~~ Example references (6 of 6; assessments first): - [doi:10.1179/cmq.2005.44.4.523](https://doi.org/10.1179/cmq.2005.44.4.523) F. ISLAM, M. MEDRAJ, THERMODYNAMIC MODELLING OF THE Mg-Al-Ca SYSTEM, Canadian Metallurgical Quarterly 44, 523-536 (2005). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/BF02667878](https://doi.org/10.1007/BF02667878) B. Hallstedt, J. Phase Equilib., 14, 662-75(1993). _assessment that models this phase_ - [doi:10.1016/j.calphad.2023.102577](https://doi.org/10.1016/j.calphad.2023.102577) B. Hallstedt, M. Noori, Calphad, 82, 102577(2023). _assessment that models this phase_ - [doi:10.1016/j.intermet.2007.10.010](https://doi.org/10.1016/j.intermet.2007.10.010) A. Kozlov, M. Ohno, R. Arroyave, Z.K. Liu, R. Schmid-Fetzer, Phase equilibria, thermodynamics and solidification microstructures of Mg–Sn–Ca alloys, Part 1: Experimental investigation and thermodynamic modeling of the ternary Mg–Sn–Ca system, Intermetallics 16, 299-315 (2008). _assessment that models this phase_ - [doi:10.1016/j.jallcom.2005.10.033](https://doi.org/10.1016/j.jallcom.2005.10.033) Yu Zhong, Koray Ozturk, Jorge O. Sofo, Zi-Kui Liu, Contribution of first-principles energetics to the Ca–Mg thermodynamic modeling, Journal of Alloys and Compounds 420, 98-106 (2006). _assessment that models this phase_ - [doi:10.1515/ijmr-1995-860206](https://doi.org/10.1515/ijmr-1995-860206) R. Agarwal, J.J. Lee, H.L. Lukas, F. Sommer, Z. Metallkd., 86, 103-8(1995). _assessment that models this phase_ ## LIQUID (Ca–Mg) - Id: `phase:ca-mg:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 6 of 6 calculated diagram(s): 710.13–2500 K, x(Mg) 0–1 - Literature: 20 values (20 accepted) from 2 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ca-mg:liquid) Names (9): _corpus: _corpus:phase:ca-mg:liquid _paper: _paper:10.1016/j.calphad.2005.08.006:L, paper:10.1179/cmq.2005.44.4.523:L _tdb: _tdb:CaMg-05Isl.tdb:LIQUID, tdb:CaMg-06Zho.tdb:LIQUID, tdb:CaMg-08Koz.tdb:LIQUID, tdb:CaMg-23Hal.tdb:LIQUID, tdb:CaMg-93Hal.tdb:LIQUID, tdb:CaMg-95Aga-LB.tdb:LIQUID ### TDB models of LIQUID (6): PHASE and CONSTITUENT statements as written [CaMg-05Isl.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-05Isl.tdb): LIQUID, type code %, sha256 `89c94b67c9020742…` ~~~~text 22: PHASE LIQUID:L % 1 1 ! 23: CONST LIQUID:L : CA MG : ! ~~~~ [CaMg-06Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-06Zho.tdb): LIQUID, type code %, sha256 `4975fabd57c900d5…` ~~~~text 26: PHASE LIQUID:L % 1 1 ! 27: CONST LIQUID:L : CA MG : ! ~~~~ [CaMg-08Koz.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-08Koz.tdb): LIQUID, type code %, sha256 `4be2efab4bdbe808…` ~~~~text 24: PHASE LIQUID:L % 1 1 ! 25: CONST LIQUID:L : CA MG : ! ~~~~ [CaMg-23Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-23Hal.tdb): LIQUID, type code %, sha256 `76c9ca1f4d8ffe00…` ~~~~text 52: PHASE LIQUID:L % 1 1 ! 53: CONST LIQUID:L : CA MG : ! ~~~~ [CaMg-93Hal.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-93Hal.tdb): LIQUID, type code %, sha256 `c8851e28a70ea868…` ~~~~text 20: PHASE LIQUID:L % 1 1 ! 21: CONST LIQUID:L : CA MG : ! ~~~~ [CaMg-95Aga-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CaMg-95Aga-LB.tdb): LIQUID, type code %, sha256 `67902d2e36bf24aa…` ~~~~text 20: PHASE LIQUID:L % 1 1 ! 21: CONST LIQUID:L : CA MG : ! ~~~~ Example references (8 of 8; assessments first): - [doi:10.1179/cmq.2005.44.4.523](https://doi.org/10.1179/cmq.2005.44.4.523) F. ISLAM, M. MEDRAJ, THERMODYNAMIC MODELLING OF THE Mg-Al-Ca SYSTEM, Canadian Metallurgical Quarterly 44, 523-536 (2005). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/BF02667878](https://doi.org/10.1007/BF02667878) B. Hallstedt, J. Phase Equilib., 14, 662-75(1993). _assessment that models this phase_ - [doi:10.1016/j.calphad.2023.102577](https://doi.org/10.1016/j.calphad.2023.102577) B. Hallstedt, M. Noori, Calphad, 82, 102577(2023). _assessment that models this phase_ - [doi:10.1016/j.intermet.2007.10.010](https://doi.org/10.1016/j.intermet.2007.10.010) A. Kozlov, M. Ohno, R. Arroyave, Z.K. Liu, R. Schmid-Fetzer, Phase equilibria, thermodynamics and solidification microstructures of Mg–Sn–Ca alloys, Part 1: Experimental investigation and thermodynamic modeling of the ternary Mg–Sn–Ca system, Intermetallics 16, 299-315 (2008). _assessment that models this phase_ - [doi:10.1016/j.jallcom.2005.10.033](https://doi.org/10.1016/j.jallcom.2005.10.033) Yu Zhong, Koray Ozturk, Jorge O. Sofo, Zi-Kui Liu, Contribution of first-principles energetics to the Ca–Mg thermodynamic modeling, Journal of Alloys and Compounds 420, 98-106 (2006). _assessment that models this phase_ - [doi:10.1515/ijmr-1995-860206](https://doi.org/10.1515/ijmr-1995-860206) R. Agarwal, J.J. Lee, H.L. Lukas, F. Sommer, Z. Metallkd., 86, 103-8(1995). _assessment that models this phase_ - [doi:10.1016/j.calphad.2005.08.006](https://doi.org/10.1016/j.calphad.2005.08.006) F. Islam, M. Medraj, The phase equilibria in the Mg–Ni–Ca system, Calphad 29, 289-302 (2005). _reports values for this phase_ - [doi:10.1002/zaac.19110700126](https://doi.org/10.1002/zaac.19110700126) N. Baar, Über die Legierungen des Molybdäns mit Nickel, Mangans mit Thallium und des Calciums mit Magnesium, Thallium, Blei, Kupfer und Silber, Z. Anorg. Chem. 70, 352-394 (1911). _cited as the source of values for 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).