# Ce–Mg system

> Ce–Mg system: 33 accepted literature values (invariant reaction 25, phase transition 5, formation 3) and 4 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/CE-MG.html · Markdown: https://data.orchid-project.org/systems/CE-MG.md

33 accepted literature values from 4 paper(s) (experimental 12, model 21); 4 calculated phase diagram(s). 1 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/CE-MG.json) · [CSV](https://data.orchid-project.org/systems/CE-MG.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#CE-MG) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#CE-MG/CeMg-08Guo.json) · [phases (14)](https://data.orchid-project.org/phases/pages/CE-MG.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/CE-MG.html) · [Markdown](https://data.orchid-project.org/systems/CE-MG.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 12 |
| model | 21 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 25 |
| phase transition | 5 |
| formation | 3 |

## 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 |
|---|---|---|---|
| CeMg-08Guo.tdb | C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 99, 650-68(2008). [doi:10.3139/146.101685](https://doi.org/10.3139/146.101685) | `0775d62211d407e6f765c9f3cb7507d32206c04bae96ea852de1f5a6d5cb4d9d` | [viewer](https://orchid-project.org/phase-diagrams/#CE-MG/CeMg-08Guo.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CeMg-08Guo.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CeMg-08Guo.json) |
| CeMg-08Zha.tdb | H. Zhang, Y. Wang, S. Shang, L.-Q. Chen, Z.-K. Liu, J. Alloys Compd., 463, 294-301(2008). [doi:10.1016/j.jallcom.2007.09.020](https://doi.org/10.1016/j.jallcom.2007.09.020) | `ba049b71bcb3e9d46e0764637819bd75d8b50a4ff65d8eaf878b5fff28932d7d` | [viewer](https://orchid-project.org/phase-diagrams/#CE-MG/CeMg-08Zha.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CeMg-08Zha.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CeMg-08Zha.json) |
| CeMg-10Guo.tdb | C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010). [doi:10.3139/146.110380](https://doi.org/10.3139/146.110380) | `537656992ebe3a73a54cd23759cdcf85adbe7dd1a2711fb9252d08cbc38c0503` | [viewer](https://orchid-project.org/phase-diagrams/#CE-MG/CeMg-10Guo.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CeMg-10Guo.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CeMg-10Guo.json) |
| CeMg-98Cac-LB.tdb | G. Cacciamani, A. Saccone, R. Ferro, COST 507, Final report round 2, 1998. | `80e109b42da8d78af695c1a002b74f9f43beb155e7d0c2f3dbd8070a980a5273` | [viewer](https://orchid-project.org/phase-diagrams/#CE-MG/CeMg-98Cac-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CeMg-98Cac-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CeMg-98Cac-LB.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| CeMg-08Guo.tdb | 1023.07 | LIQUID (x(Mg) 0.63737) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75023) |
| CeMg-08Guo.tdb | 1023.07 | LIQUID (x(Mg) 0.63705) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75022) |
| CeMg-08Guo.tdb | 1000 | FCC_A1 (x(Mg) 0) + B2_BCC (x(Mg) 0) + BCC_A2 (x(Mg) 0) |
| CeMg-08Guo.tdb | 981.83 | B2_BCC (x(Mg) 0.51026) + LIQUID (x(Mg) 0.54608) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Guo.tdb | 981.83 | B2_BCC (x(Mg) 0.51022) + LIQUID (x(Mg) 0.54593) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Guo.tdb | 981.83 | B2_BCC (x(Mg) 0.51026) + LIQUID (x(Mg) 0.54608) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Guo.tdb | 981.83 | B2_BCC (x(Mg) 0.51022) + LIQUID (x(Mg) 0.54593) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Guo.tdb | 959.94 | B2_BCC#2 (x(Mg) 0.31831) + LIQUID (x(Mg) 0.36043) + B2_BCC (x(Mg) 0.47059) |
| CeMg-08Guo.tdb | 959.94 | B2_BCC#2 (x(Mg) 0.31831) + LIQUID (x(Mg) 0.36043) + B2_BCC (x(Mg) 0.47059) |
| CeMg-08Guo.tdb | 959.94 | BCC_A2 (x(Mg) 0.31831) + LIQUID (x(Mg) 0.36043) + B2_BCC (x(Mg) 0.47059) |
| CeMg-08Guo.tdb | 905.42 | MG3M_D03 (x(Mg) 0.77046) + MG41M5 (x(Mg) 0.8913) + LIQUID (x(Mg) 0.89829) |
| CeMg-08Guo.tdb | 896 | MG41M5 (x(Mg) 0.8913) + MG17R2 (x(Mg) 0.89474) + LIQUID (x(Mg) 0.92347) |
| CeMg-08Guo.tdb | 887.65 | B2_BCC (x(Mg) 0.51936) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75002) |
| CeMg-08Guo.tdb | 887.65 | B2_BCC (x(Mg) 0.51936) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75002) |
| CeMg-08Guo.tdb | 887.65 | B2_BCC (x(Mg) 0.51936) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75002) |
| CeMg-08Guo.tdb | 887.65 | B2_BCC (x(Mg) 0.51936) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75002) |
| CeMg-08Guo.tdb | 886.37 | MG17R2 (x(Mg) 0.89474) + MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.9355) |
| CeMg-08Guo.tdb | 885.93 | MG41M5 (x(Mg) 0.8913) + MG17R2 (x(Mg) 0.89474) + MG12R_D2B (x(Mg) 0.92308) |
| CeMg-08Guo.tdb | 869.75 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.96115) + HCP_A3 (x(Mg) 0.99963) |
| CeMg-08Guo.tdb | 869.75 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.96118) + HCP_A3 (x(Mg) 0.99963) |
| CeMg-08Guo.tdb | 777.52 | FCC_A1 (x(Mg) 0.08246) + B2_BCC#2 (x(Mg) 0.19678) + B2_BCC (x(Mg) 0.47766) |
| CeMg-08Guo.tdb | 777.52 | FCC_A1 (x(Mg) 0.08246) + BCC_A2 (x(Mg) 0.19678) + B2_BCC (x(Mg) 0.47766) |
| CeMg-08Guo.tdb | 777.52 | FCC_A1 (x(Mg) 0.08246) + B2_BCC#2 (x(Mg) 0.19678) + B2_BCC (x(Mg) 0.47766) |
| CeMg-08Zha.tdb | 1048.29 | FCC_A1 (x(Mg) 0) + LIQUID (x(Mg) 0) + BCC_A2 (x(Mg) 0) |
| CeMg-08Zha.tdb | 1023.34 | LIQUID (x(Mg) 0.62826) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75) |
| CeMg-08Zha.tdb | 1023.33 | LIQUID (x(Mg) 0.62861) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75) |
| CeMg-08Zha.tdb | 1023.33 | LIQUID (x(Mg) 0.62878) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75) |
| CeMg-08Zha.tdb | 986.04 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.54518) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Zha.tdb | 986.04 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.54492) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Zha.tdb | 986.04 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.54516) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Zha.tdb | 986.04 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.5448) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Zha.tdb | 986.04 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.54479) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-08Zha.tdb | 960.73 | BCC_A2 (x(Mg) 0.31707) + LIQUID (x(Mg) 0.36255) + CEMG_B2 (x(Mg) 0.5) |
| CeMg-08Zha.tdb | 960.72 | BCC_A2 (x(Mg) 0.31679) + LIQUID (x(Mg) 0.3622) + CEMG_B2 (x(Mg) 0.5) |
| CeMg-08Zha.tdb | 904.42 | MG3M_D03 (x(Mg) 0.75) + MG41M5 (x(Mg) 0.8913) + LIQUID (x(Mg) 0.89956) |
| CeMg-08Zha.tdb | 890.4 | CEMG_B2 (x(Mg) 0.5) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75) |
| CeMg-08Zha.tdb | 870.03 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.96161) + HCP_A3 (x(Mg) 1) |
| CeMg-08Zha.tdb | 870.03 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.96151) + HCP_A3 (x(Mg) 1) |
| CeMg-08Zha.tdb | 870.03 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.96165) + HCP_A3 (x(Mg) 1) |
| CeMg-08Zha.tdb | 771.36 | FCC_A1 (x(Mg) 0.11822) + BCC_A2 (x(Mg) 0.17572) + CEMG_B2 (x(Mg) 0.5) |
| CeMg-08Zha.tdb | 771.36 | FCC_A1 (x(Mg) 0.11813) + BCC_A2 (x(Mg) 0.17554) + CEMG_B2 (x(Mg) 0.5) |
| CeMg-10Guo.tdb | 1023.07 | LIQUID (x(Mg) 0.63737) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75023) |
| CeMg-10Guo.tdb | 1000 | FCC_A1 (x(Mg) 0) + B2_BCC (x(Mg) 0) + BCC_A2 (x(Mg) 0) |
| CeMg-10Guo.tdb | 981.83 | B2_BCC (x(Mg) 0.51026) + LIQUID (x(Mg) 0.54608) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-10Guo.tdb | 981.83 | B2_BCC (x(Mg) 0.51022) + LIQUID (x(Mg) 0.54593) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-10Guo.tdb | 981.83 | B2_BCC (x(Mg) 0.51026) + LIQUID (x(Mg) 0.54608) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-10Guo.tdb | 959.94 | B2_BCC#2 (x(Mg) 0.31831) + LIQUID (x(Mg) 0.36043) + B2_BCC (x(Mg) 0.47059) |
| CeMg-10Guo.tdb | 959.94 | B2_BCC#2 (x(Mg) 0.31831) + LIQUID (x(Mg) 0.36043) + B2_BCC (x(Mg) 0.47059) |
| CeMg-10Guo.tdb | 959.94 | BCC_A2 (x(Mg) 0.31831) + LIQUID (x(Mg) 0.36043) + B2_BCC (x(Mg) 0.47059) |
| CeMg-10Guo.tdb | 905.21 | MG3M_D03 (x(Mg) 0.77049) + MG41M5 (x(Mg) 0.8913) + LIQUID (x(Mg) 0.89837) |
| CeMg-10Guo.tdb | 896.13 | MG41M5 (x(Mg) 0.8913) + MG17R2 (x(Mg) 0.89474) + LIQUID (x(Mg) 0.91877) |
| CeMg-10Guo.tdb | 896.13 | MG41M5 (x(Mg) 0.8913) + MG17R2 (x(Mg) 0.89474) + LIQUID (x(Mg) 0.91869) |
| CeMg-10Guo.tdb | 896.13 | MG41M5 (x(Mg) 0.8913) + MG17R2 (x(Mg) 0.89474) + LIQUID (x(Mg) 0.91864) |
| CeMg-10Guo.tdb | 887.65 | B2_BCC (x(Mg) 0.51936) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75002) |
| CeMg-10Guo.tdb | 887.65 | B2_BCC (x(Mg) 0.51936) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75002) |
| CeMg-10Guo.tdb | 887.65 | B2_BCC (x(Mg) 0.51936) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75002) |
| CeMg-10Guo.tdb | 885.17 | MG17R2 (x(Mg) 0.89474) + MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.93049) |
| CeMg-10Guo.tdb | 885.17 | MG17R2 (x(Mg) 0.89474) + MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.93055) |
| CeMg-10Guo.tdb | 885.17 | MG17R2 (x(Mg) 0.89474) + MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.93066) |
| CeMg-10Guo.tdb | 882.8 | MG41M5 (x(Mg) 0.8913) + MG17R2 (x(Mg) 0.89474) + MG12R_D2B (x(Mg) 0.92308) |
| CeMg-10Guo.tdb | 864.32 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.9577) + HCP_A3 (x(Mg) 0.9983) |
| CeMg-10Guo.tdb | 864.31 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.9578) + HCP_A3 (x(Mg) 0.99831) |
| CeMg-10Guo.tdb | 777.52 | FCC_A1 (x(Mg) 0.08246) + B2_BCC#2 (x(Mg) 0.19678) + B2_BCC (x(Mg) 0.47766) |
| CeMg-10Guo.tdb | 777.52 | FCC_A1 (x(Mg) 0.08246) + BCC_A2 (x(Mg) 0.19678) + B2_BCC (x(Mg) 0.47766) |
| CeMg-10Guo.tdb | 777.52 | FCC_A1 (x(Mg) 0.08246) + B2_BCC#2 (x(Mg) 0.19678) + B2_BCC (x(Mg) 0.47766) |
| CeMg-98Cac-LB.tdb | 1020.1 | LIQUID (x(Mg) 0.61983) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75) |
| CeMg-98Cac-LB.tdb | 1020.1 | LIQUID (x(Mg) 0.61953) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75) |
| CeMg-98Cac-LB.tdb | 1020.1 | LIQUID (x(Mg) 0.62011) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75) |
| CeMg-98Cac-LB.tdb | 982.89 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.52841) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-98Cac-LB.tdb | 982.89 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.52807) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-98Cac-LB.tdb | 982.89 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.52839) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-98Cac-LB.tdb | 982.89 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.52748) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-98Cac-LB.tdb | 982.89 | CEMG_B2 (x(Mg) 0.5) + LIQUID (x(Mg) 0.52747) + MG2M_C15 (x(Mg) 0.66667) |
| CeMg-98Cac-LB.tdb | 955.15 | BCC_A2 (x(Mg) 0.28854) + LIQUID (x(Mg) 0.32834) + CEMG_B2 (x(Mg) 0.5) |
| CeMg-98Cac-LB.tdb | 955.15 | BCC_A2 (x(Mg) 0.28817) + LIQUID (x(Mg) 0.32788) + CEMG_B2 (x(Mg) 0.5) |
| CeMg-98Cac-LB.tdb | 898.1 | MG3M_D03 (x(Mg) 0.75) + MG41M5 (x(Mg) 0.8913) + LIQUID (x(Mg) 0.90436) |
| CeMg-98Cac-LB.tdb | 888.01 | CEMG_B2 (x(Mg) 0.5) + MG2M_C15 (x(Mg) 0.66667) + MG3M_D03 (x(Mg) 0.75) |
| CeMg-98Cac-LB.tdb | 868.24 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.95999) + HCP_A3 (x(Mg) 0.99869) |
| CeMg-98Cac-LB.tdb | 868.24 | MG12R_D2B (x(Mg) 0.92308) + LIQUID (x(Mg) 0.95999) + HCP_A3 (x(Mg) 0.99869) |
| CeMg-98Cac-LB.tdb | 768.67 | FCC_A1 (x(Mg) 0.07181) + BCC_A2 (x(Mg) 0.11448) + CEMG_B2 (x(Mg) 0.5) |
| CeMg-98Cac-LB.tdb | 768.67 | FCC_A1 (x(Mg) 0.07175) + BCC_A2 (x(Mg) 0.11441) + CEMG_B2 (x(Mg) 0.5) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/CE/CE-MG.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/CE/CE-MG.json) · [CALPHAD hull CeMg-08Guo](https://data.orchid-project.org/hulls/calphad-sgte/CE/CE-MG--CeMg-08Guo.json) · [CALPHAD hull CeMg-08Zha](https://data.orchid-project.org/hulls/calphad-sgte/CE/CE-MG--CeMg-08Zha.json) · [CALPHAD hull CeMg-98Cac-LB](https://data.orchid-project.org/hulls/calphad-sgte/CE/CE-MG--CeMg-98Cac-LB.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Ce–Mg system (25)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1023.3 | peritectic: Liquid -> Mg3Ce + Mg2Ce | L: Mg 0.628; Mg3Ce: Mg 0.75; Mg2Ce: Mg 0.6667 | model | [1] Zhang 2008 | Table 6, p. 6, row 6; `ORC-XKRPMEZBPC` |  |
| 1023 | peritectic: Liquid -> Mg3Ce + Mg2Ce | L: Mg 0.59; Mg3Ce: Mg 0.75; Mg2Ce: Mg 0.6667 | experimental | [1] Zhang 2008; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380101) | Table 6, p. 6, row 5; `ORC-GUE5VTOLQL` |  |
| 1020.1 | peritectic: Liquid + CeMg3 -> CeMg2 | L: Mg 0.62; CeMg3: Mg 0.75; CeMg2: Mg 0.667 | model | [2] (ed.) 1998 | Table I, p. 156, row 3; `ORC-FUEYPGY4IB` |  |
| 986 | eutectic: Liquid -> MgCe + Mg2Ce | L: Mg 0.546; MgCe: Mg 0.5; Mg2Ce: Mg 0.6667 | model | [1] Zhang 2008 | Table 6, p. 6, row 4; `ORC-HJ2JB73IRS` |  |
| 984 | eutectic: Liquid -> MgCe + Mg2Ce | L: Mg 0.465; MgCe: Mg 0.5; Mg2Ce: Mg 0.6667 | experimental | [1] Zhang 2008; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380101) | Table 6, p. 6, row 3; `ORC-DIUMZDXWTS` |  |
| 982.9 | eutectic: Liquid -> CeMg + CeMg2 | L: Mg 0.528; CeMg: Mg 0.5; CeMg2: Mg 0.667 | model | [2] (ed.) 1998 | Table I, p. 156, row 2; `ORC-UFGEIT7XE6` |  |
| 961 | eutectic: Liquid -> bcc_A2 + MgCe | L: Mg 0.35; MgCe: Mg 0.5 | experimental | [1] Zhang 2008; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380101) | Table 6, p. 6, row 1; `ORC-ZB4J733FJF` |  |
| 960.7 | eutectic: Liquid -> bcc_A2 + MgCe | L: Mg 0.362; bcc_A2: Mg 0.932; MgCe: Mg 0.5 | model | [1] Zhang 2008 | Table 6, p. 6, row 2; `ORC-N73UF2CYMZ` |  |
| 955.1 | eutectic: Liquid -> bcc-A2 + CeMg | L: Mg 0.328; bcc-A2: Mg 0.288; CeMg: Mg 0.5 | model | [2] (ed.) 1998 | Table I, p. 156, row 1; `ORC-PV64QQK6CZ` |  |
| 908 | peritectic: liquid + Mg3 Ce → Mg41 Ce5 |  | experimental | [1] Zhang 2008; _cites Wood 1965_ [doi](https://doi.org/10.1016/0022-5088%2865%2990115-3) | p. 6; `ORC-ACYHCXTOID` | “The peritectic reaction of liquid + Mg3 Ce → Mg41 Ce5 at about 908 K was observed by Wood and Cramer \[28\].” |
| 908 | peritectic: Liquid + Mg3Ce -> Mg41Ce5 | L: Mg 0.9; Mg3Ce: Mg 0.75; Mg41Ce5: Mg 0.8913 | experimental | [1] Zhang 2008; _cites Wood 1965_ [doi](https://doi.org/10.1016/0022-5088%2865%2990115-3) | Table 6, p. 6, row 7; `ORC-BIUNKNPEF7` |  |
| 904.4 | peritectic: Liquid + Mg3Ce -> Mg41Ce5 | L: Mg 0.9; Mg3Ce: Mg 0.75; Mg41Ce5: Mg 0.891 | model | [1] Zhang 2008 | Table 6, p. 6, row 8; `ORC-RRQ2GDV24F` |  |
| 898.1 | peritectic: Liquid + CeMg3 -> Ce5Mg41 | L: Mg 0.904; CeMg3: Mg 0.75; Ce5Mg41: Mg 0.891 | model | [2] (ed.) 1998 | Table I, p. 156, row 4; `ORC-PF5JE7X4SK` |  |
| 894 | peritectic: Liquid + Mg41Ce5 -> Mg17Ce2 | L: Mg 0.915; Mg41Ce5: Mg 0.8913; Mg17Ce2: Mg 0.9115 | experimental | [1] Zhang 2008; _cites Wood 1965_ [doi](https://doi.org/10.1016/0022-5088%2865%2990115-3) | Table 6, p. 6, row 9; `ORC-PWR76DKQVL` |  |
| 890.7 | peritectic: Liquid + Mg41Ce5 -> Mg17Ce2 | L: Mg 0.934; Mg41Ce5: Mg 0.891; Mg17Ce2: Mg 0.911 | model | [1] Zhang 2008 | Table 6, p. 6, row 10; `ORC-4VJ2DC4XZJ` |  |
| 889.6 | peritectic: Liquid + Ce5Mg41 -> Ce2Mg17 | L: Mg 0.923; Ce5Mg41: Mg 0.891; Ce2Mg17: Mg 0.895 | model | [2] (ed.) 1998 | Table I, p. 156, row 5; `ORC-WWIWEEQJ5U` |  |
| 889 | peritectic: Liquid + Mg17Ce2 -> Mg12Ce | L: Mg 0.925; Mg17Ce2: Mg 0.9115; Mg12Ce: Mg 0.9231 | experimental | [1] Zhang 2008; _cites Haughton 1937_ | Table 6, p. 6, row 11; `ORC-WWRXBGWSTG` |  |
| 888 | eutectoid: CeMg2 -> CeMg + CeMg3 | CeMg2: Mg 0.667; CeMg: Mg 0.5; CeMg3: Mg 0.75 | model | [2] (ed.) 1998 | Table I, p. 156, row 9; `ORC-LTXUR6W5Q7` |  |
| 884.7 | peritectic: Liquid + Ce2Mg17 -> CeMg12 | L: Mg 0.93; Ce2Mg17: Mg 0.895; CeMg12: Mg 0.923 | model | [2] (ed.) 1998 | Table I, p. 156, row 6; `ORC-6JVVAQ4RPQ` |  |
| 882 | eutectoid: Ce2Mg17 -> Ce5Mg41 + CeMg12 | Ce2Mg17: Mg 0.895; Ce5Mg41: Mg 0.891; CeMg12: Mg 0.923 | model | [2] (ed.) 1998 | Table I, p. 156, row 8; `ORC-MWZHRJ6WHV` |  |
| 880 | peritectic: Liquid + Mg17Ce2 -> Mg12Ce | L: Mg 0.94; Mg17Ce2: Mg 0.911; Mg12Ce: Mg 0.923 | model | [1] Zhang 2008 | Table 6, p. 6, row 12; `ORC-FZ3QYD7ULP` |  |
| 872 | eutectic: Liquid -> Mg12Ce + hcp_A3 | L: Mg 0.962; Mg12Ce: Mg 0.923; hcp_A3: Mg 0.9997 | model | [1] Zhang 2008 | Table 6, p. 6, row 14; `ORC-OO46BK2Y3P` |  |
| 867.9 | eutectic: Liquid -> CeMg12 + hcp-A3 | L: Mg 0.96; CeMg12: Mg 0.923; hcp-A3: Mg 1 | model | [2] (ed.) 1998 | Table I, p. 156, row 7; `ORC-XVHLWQBXG5` |  |
| 865 | eutectic: Liquid -> Mg12Ce + hcp_A3 | L: Mg 0.957; Mg12Ce: Mg 0.9231; hcp_A3: Mg 0.9991 | experimental | [1] Zhang 2008; _cites Haughton 1937_ | Table 6, p. 6, row 13; `ORC-AXX3HEDMGE` |  |
| 768.7 | eutectoid: bcc-A2 -> fcc-A1 + CeMg | bcc-A2: Mg 0.114; fcc-A1: Mg 0.072; CeMg: Mg 0.5 | model | [2] (ed.) 1998 | Table I, p. 156, row 10; `ORC-EH4HL35SCJ` |  |

## 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, Ce–Mg system (3)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| CeMg | [CeMg](https://data.orchid-project.org/compounds/CeMg.html) | -8 kJ/mol-atom | 298.15 | experimental | 0.742 (mp-aaachcsm) | -11.851 (oqmd-88154) | [3] Hampl 2013; _cites ref. 1967Ogr_ | Table 6, p. 10, row 6; `ORC-JCB6V7LXAA.a9dec4` |  |
| CeMg3 | [CeMg3](https://data.orchid-project.org/compounds/CeMg3.html) | -17.8 kJ/mol-atom | 298.15 | experimental | -2.733 (mp-aaaaacre) | -12.911 (oqmd-645802) | [3] Hampl 2013; _cites ref. 1924Bil_ | Table 6, p. 10, row 5; `ORC-WWELITVPR3.bbcc29` |  |
| CeMg3 | [CeMg3](https://data.orchid-project.org/compounds/CeMg3.html) | -14.9 kJ/mol-atom | 298.15 | experimental | -2.733 (mp-aaaaacre) | -12.911 (oqmd-645802) | [3] Hampl 2013; _cites ref. 1988Nag_ | Table 6, p. 10, row 8; `ORC-TSHKJXNT3Q.a433a9` |  |

## Other properties

### Phase transition (5)

Table: Phase transition, Ce–Mg system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 899.95 K | 899.95 | other | model | [4] Gröbner 2010 | p. 3; `ORC-YLTMRYI6HI.4654da` | “Invariant three-phase reactions such as the minimum in L + (Ce,Y)Mg + CeMg2 at 626.8 °C, the maximum in L + Mg24Y5 + T at 560.99 °C, and the shallow maximum in L + Mg24Y5 + CeMg12 at 544.99 °C between the two ternary eutectic invariant reactions E1 and E2 are not included in Table 2.” |
| Phase transition | 983.8 K | 983.8 | congruent melting: CeMg -> Liquid; _CeMg: Mg 0.5; L: Mg 0.5_ | model | [2] (ed.) 1998 | Table I, p. 156, row 11; `ORC-D2KZV5JTNO` |  |
| Phase transition | 1069 K | 1069 | congruent melting: Mg3Ce -> liquid; _Mg3Ce: Mg 0.75; L: Mg 0.75_ | experimental | [1] Zhang 2008; _cites Vogel 1947_ [doi](https://doi.org/10.1515/ijmr-1947-380101) | Table 6, p. 6, row 15; `ORC-D6OPWI3KOY` |  |
| Phase transition | 1071 K | 1071 | congruent melting: Mg3Ce -> liquid; _Mg3Ce: Mg 0.75; L: Mg 0.75_ | model | [1] Zhang 2008 | Table 6, p. 6, row 16; `ORC-LEMQVFAXPW` |  |
| Phase transition | 1073 K | 1073 | congruent melting: CeMg3 -> Liquid; _CeMg3: Mg 0.75; L: Mg 0.75_ | model | [2] (ed.) 1998 | Table I, p. 156, row 12; `ORC-3IH6OVBINI` |  |

## Sources

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

1. Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008). [doi:10.1016/j.jallcom.2007.09.020](https://doi.org/10.1016/j.jallcom.2007.09.020)
2. I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8.
3. M. Hampl, C. Blawert, M.R. Silva Campos, N. Hort, Q. Peng, K.U. Kainer et al., Thermodynamic assessment and experimental study of Mg–Gd alloys, Journal of Alloys and Compounds 581, 166-177 (2013). [doi:10.1016/j.jallcom.2013.07.042](https://doi.org/10.1016/j.jallcom.2013.07.042)
4. Joachim Gröbner, Rainer Schmid-Fetzer, Thermodynamic modeling of the Mg–Ce–Gd–Y system, Scripta Materialia 63, 674-679 (2010). [doi:10.1016/j.scriptamat.2010.01.035](https://doi.org/10.1016/j.scriptamat.2010.01.035)

## 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/).