# Mg–Sr system

> Mg–Sr system: 39 accepted literature values (invariant reaction 24, crystal structure 9, formation 6) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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

39 accepted literature values from 1 paper(s) (experimental 18, model 7, unspecified 14); 2 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/MG-SR.json) · [CSV](https://data.orchid-project.org/systems/MG-SR.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#MG-SR) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#MG-SR/MgSr-06Zho.json) · [phases (8)](https://data.orchid-project.org/phases/pages/MG-SR.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/MG-SR.html) · [Markdown](https://data.orchid-project.org/systems/MG-SR.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 18 |
| model | 7 |
| unspecified | 14 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 24 |
| formation | 6 |
| crystal structure | 9 |

## 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 |
|---|---|---|---|
| MgSr-06Zho.tdb | Y. Zhong, J.O. Sofo, A.A. Luo, Z.-K. Liu, J. Alloys Compd., 421, 172-78(2006). [doi:10.1016/j.jallcom.2005.09.076](https://doi.org/10.1016/j.jallcom.2005.09.076) | `80a83605604288d13232fc86b63a3c161f03dbfc5e5bc79ad741d3dd864be6f1` | [viewer](https://orchid-project.org/phase-diagrams/#MG-SR/MgSr-06Zho.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/MgSr-06Zho.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/MgSr-06Zho.json) |
| MgSr-07Alj.tdb | M. Aljarrah, U. Aghaulor, M. Medraj, Intermetallics, 15, 93-97(2007). [doi:10.1016/j.intermet.2006.03.011](https://doi.org/10.1016/j.intermet.2006.03.011) | `f812ec503d9305231040d7e7cde473f4005f53d23f0b7e8c2af0cfd6788099e9` | [viewer](https://orchid-project.org/phase-diagrams/#MG-SR/MgSr-07Alj.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/MgSr-07Alj.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/MgSr-07Alj.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| MgSr-06Zho.tdb | 875.94 | LIQUID (x(Sr) 0.19234) + MG23SR6_D8A (x(Sr) 0.2069) + MG2SR_C14 (x(Sr) 0.32851) |
| MgSr-06Zho.tdb | 875.94 | LIQUID (x(Sr) 0.19208) + MG23SR6_D8A (x(Sr) 0.2069) + MG2SR_C14 (x(Sr) 0.3285) |
| MgSr-06Zho.tdb | 871.93 | LIQUID (x(Sr) 0.17374) + MG38SR9 (x(Sr) 0.19149) + MG23SR6_D8A (x(Sr) 0.2069) |
| MgSr-06Zho.tdb | 871.93 | LIQUID (x(Sr) 0.17336) + MG38SR9 (x(Sr) 0.19149) + MG23SR6_D8A (x(Sr) 0.2069) |
| MgSr-06Zho.tdb | 871.93 | LIQUID (x(Sr) 0.17403) + MG38SR9 (x(Sr) 0.19149) + MG23SR6_D8A (x(Sr) 0.2069) |
| MgSr-06Zho.tdb | 871.93 | LIQUID (x(Sr) 0.17404) + MG38SR9 (x(Sr) 0.19149) + MG23SR6_D8A (x(Sr) 0.2069) |
| MgSr-06Zho.tdb | 871.93 | LIQUID (x(Sr) 0.17335) + MG38SR9 (x(Sr) 0.19149) + MG23SR6_D8A (x(Sr) 0.2069) |
| MgSr-06Zho.tdb | 866.11 | MG17SR2 (x(Sr) 0.10526) + LIQUID (x(Sr) 0.1526) + MG38SR9 (x(Sr) 0.19149) |
| MgSr-06Zho.tdb | 866.11 | MG17SR2 (x(Sr) 0.10526) + LIQUID (x(Sr) 0.1528) + MG38SR9 (x(Sr) 0.19149) |
| MgSr-06Zho.tdb | 866.11 | MG17SR2 (x(Sr) 0.10526) + LIQUID (x(Sr) 0.15231) + MG38SR9 (x(Sr) 0.19149) |
| MgSr-06Zho.tdb | 866.11 | MG17SR2 (x(Sr) 0.10526) + LIQUID (x(Sr) 0.15229) + MG38SR9 (x(Sr) 0.19149) |
| MgSr-06Zho.tdb | 861.4 | HCP_A3 (x(Sr) 9.700e-4) + LIQUID (x(Sr) 0.05857) + MG17SR2 (x(Sr) 0.10526) |
| MgSr-06Zho.tdb | 861.4 | HCP_A3 (x(Sr) 9.600e-4) + LIQUID (x(Sr) 0.05848) + MG17SR2 (x(Sr) 0.10526) |
| MgSr-06Zho.tdb | 818.69 | LIQUID (x(Sr) 0.79108) + BCC_A2 (x(Sr) 0.99712) + FCC_A1 (x(Sr) 0.99732) |
| MgSr-06Zho.tdb | 700.28 | MG2SR_C14 (x(Sr) 0.33866) + LIQUID (x(Sr) 0.69294) + FCC_A1 (x(Sr) 0.99782) |
| MgSr-07Alj.tdb | 870.7 | LIQUID (x(Sr) 0.18541) + MG23SR6_D8A (x(Sr) 0.2069) + MG2SR_C14 (x(Sr) 0.33333) |
| MgSr-07Alj.tdb | 870.7 | LIQUID (x(Sr) 0.18518) + MG23SR6_D8A (x(Sr) 0.2069) + MG2SR_C14 (x(Sr) 0.33333) |
| MgSr-07Alj.tdb | 870.7 | LIQUID (x(Sr) 0.18586) + MG23SR6_D8A (x(Sr) 0.2069) + MG2SR_C14 (x(Sr) 0.33333) |
| MgSr-07Alj.tdb | 870.7 | LIQUID (x(Sr) 0.18586) + MG23SR6_D8A (x(Sr) 0.2069) + MG2SR_C14 (x(Sr) 0.33333) |
| MgSr-07Alj.tdb | 867.79 | LIQUID (x(Sr) 0.16971) + MG38SR9 (x(Sr) 0.19149) + MG23SR6_D8A (x(Sr) 0.2069) |
| MgSr-07Alj.tdb | 867.79 | LIQUID (x(Sr) 0.16978) + MG38SR9 (x(Sr) 0.19149) + MG23SR6_D8A (x(Sr) 0.2069) |
| MgSr-07Alj.tdb | 867.79 | LIQUID (x(Sr) 0.16979) + MG38SR9 (x(Sr) 0.19149) + MG23SR6_D8A (x(Sr) 0.2069) |
| MgSr-07Alj.tdb | 865.65 | MG17SR2 (x(Sr) 0.10526) + LIQUID (x(Sr) 0.15774) + MG38SR9 (x(Sr) 0.19149) |
| MgSr-07Alj.tdb | 865.65 | MG17SR2 (x(Sr) 0.10526) + LIQUID (x(Sr) 0.15805) + MG38SR9 (x(Sr) 0.19149) |
| MgSr-07Alj.tdb | 865.65 | MG17SR2 (x(Sr) 0.10526) + LIQUID (x(Sr) 0.15802) + MG38SR9 (x(Sr) 0.19149) |
| MgSr-07Alj.tdb | 865.65 | MG17SR2 (x(Sr) 0.10526) + LIQUID (x(Sr) 0.15768) + MG38SR9 (x(Sr) 0.19149) |
| MgSr-07Alj.tdb | 863.63 | HCP_A3 (x(Sr) 8.300e-4) + LIQUID (x(Sr) 0.05651) + MG17SR2 (x(Sr) 0.10526) |
| MgSr-07Alj.tdb | 863.63 | HCP_A3 (x(Sr) 8.300e-4) + LIQUID (x(Sr) 0.05636) + MG17SR2 (x(Sr) 0.10526) |
| MgSr-07Alj.tdb | 818.77 | LIQUID (x(Sr) 0.79245) + BCC_A2 (x(Sr) 0.9973) + FCC_A1 (x(Sr) 0.99749) |
| MgSr-07Alj.tdb | 818.77 | LIQUID (x(Sr) 0.79245) + BCC_A2 (x(Sr) 0.9973) + FCC_A1 (x(Sr) 0.99749) |
| MgSr-07Alj.tdb | 699.95 | MG2SR_C14 (x(Sr) 0.33333) + LIQUID (x(Sr) 0.69071) + FCC_A1 (x(Sr) 0.99788) |
| MgSr-07Alj.tdb | 699.95 | MG2SR_C14 (x(Sr) 0.33333) + LIQUID (x(Sr) 0.69056) + FCC_A1 (x(Sr) 0.99788) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/MG/MG-SR.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/MG/MG-SR.json) · [CALPHAD hull MgSr-06Zho](https://data.orchid-project.org/hulls/calphad-sgte/MG/MG-SR--MgSr-06Zho.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Mg–Sr system (24)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 962 | congruent melting: Liquid = Mg2Sr | Liquid: Sr 0.3333; Mg2Sr: Sr 0.3333 | experimental | [1] Zhong 2006; _cites Brown 1973_ | Table 4, p. 6, row 20; `ORC-5SW4TJTDHR` |  |
| 953 | congruent melting: Liquid = Mg2Sr | Liquid: Sr 0.3333; Mg2Sr: Sr 0.3333 | experimental | [1] Zhong 2006; _cites Ray 1947_ | Table 4, p. 6, row 19; `ORC-LQUHDVORTX` |  |
| 953 | congruent melting: Liquid = Mg2Sr | Liquid: Sr 0.3333; Mg2Sr: Sr 0.3333 | experimental | [1] Zhong 2006; _cites Klemm 1947_ [doi](https://doi.org/10.1002/zaac.19472550102) | Table 4, p. 6, row 18; `ORC-ZDQGZCW53U` |  |
| 951 | congruent melting: Liquid = Mg2Sr | Liquid: Sr 0.3334; Mg2Sr: Sr 0.3334 | model | [1] Zhong 2006 | Table 4, p. 6, row 17; `ORC-NTDZED7ZFV` |  |
| 881 | Liquid + Mg23Sr6 = Mg38Sr9 | Liquid: Sr 0.191; Mg23Sr6: Sr 0.3333; Mg38Sr9: Sr 0.25 | experimental | [1] Zhong 2006; _cites Ray 1947_ | Table 4, p. 6, row 13; `ORC-JBZAMVC7NG` |  |
| 881 | Liquid + Mg2Sr = Mg23Sr6 | Liquid: Sr 0.1911; Mg2Sr: Sr 0.3333; Mg23Sr6: Sr 0.25 | experimental | [1] Zhong 2006; _cites Ray 1947_ | Table 4, p. 6, row 16; `ORC-Q2O3ENRF4N` |  |
| 879.5 | congruent melting: Liquid = Mg17Sr2 | Liquid: Sr 0.1053; Mg17Sr2: Sr 0.1053 | experimental | [1] Zhong 2006; _cites Brown 1973_ | Table 4, p. 6, row 7; `ORC-UK3NX2ANGW` |  |
| 879 | congruent melting: Liquid = Mg17Sr2 | Liquid: Sr 0.1053; Mg17Sr2: Sr 0.1053 | model | [1] Zhong 2006 | Table 4, p. 6, row 6; `ORC-4HQPPTBW74` |  |
| 876 | Liquid + Mg2Sr = Mg23Sr6 | Liquid: Sr 0.1923; Mg2Sr: Sr 0.3285; Mg23Sr6: Sr 0.2069 | model | [1] Zhong 2006 | Table 4, p. 6, row 15; `ORC-NEBL2BINBX` |  |
| 876 | Liquid + Mg23Sr6 = Mg38Sr9 | Liquid: Sr 0.1936; Mg23Sr6: Sr 0.3333; Mg38Sr9: Sr 0.2069 | experimental | [1] Zhong 2006; _cites Brown 1973_ | Table 4, p. 6, row 14; `ORC-WO2P6MPGGL` |  |
| 872 | Liquid + Mg23Sr6 = Mg38Sr9 | Liquid: Sr 0.1914; Mg23Sr6: Sr 0.2069; Mg38Sr9: Sr 0.1915 | model | [1] Zhong 2006 | Table 4, p. 6, row 10; `ORC-ENUFJ7R5YV` |  |
| 872 | Liquid + Mg23Sr6 = Mg38Sr9 | Liquid: Sr 0.1744; Mg23Sr6: Sr 0.25; Mg38Sr9: Sr 0.1818 | experimental | [1] Zhong 2006; _cites Ray 1947_ | Table 4, p. 6, row 12; `ORC-JZFB3IPIHT` |  |
| 871 | Liquid + Mg23Sr6 = Mg38Sr9 | Liquid: Sr 0.175; Mg23Sr6: Sr 0.3333; Mg38Sr9: Sr 0.2 | experimental | [1] Zhong 2006; _cites Klemm 1947_ [doi](https://doi.org/10.1002/zaac.19472550102) | Table 4, p. 6, row 11; `ORC-LIP6S3APPR` |  |
| 866 | Liquid = Mg17Sr2 + Mg38Sr9 | Liquid: Sr 0.1526; Mg17Sr2: Sr 0.1053; Mg38Sr9: Sr 0.1915 | model | [1] Zhong 2006 | Table 4, p. 6, row 8; `ORC-EO3VLWTEKB` |  |
| 865 | Liquid = Mg17Sr2 + Mg38Sr9 | Liquid: Sr 0.1506; Mg17Sr2: Sr 0.1; Mg38Sr9: Sr 0.1818 | experimental | [1] Zhong 2006; _cites Ray 1947_ | Table 4, p. 6, row 9; `ORC-ODR4JVYHCD` |  |
| 861 | Liquid = hcp-Mg + Mg17Sr2 | Liquid: Sr 0.0585; hcp-Mg: Sr 0.001; Mg17Sr2: Sr 0.1053 | model | [1] Zhong 2006 | Table 4, p. 6, row 1; `ORC-TXOTSSGECE` |  |
| 859 | Liquid = hcp-Mg + Mg17Sr2 | Liquid: Sr 0.06; hcp-Mg: Sr 3.000e-4; Mg17Sr2: Sr 0.1 | experimental | [1] Zhong 2006; _cites Ray 1947_ | Table 4, p. 6, row 4; `ORC-5BSM57YEG6` |  |
| 858 | Liquid = hcp-Mg + Mg17Sr2 | Liquid: Sr 0.0645; hcp-Mg: Sr 0.001; Mg17Sr2: Sr 0.1053 | experimental | [1] Zhong 2006; _cites Brown 1973_ | Table 4, p. 6, row 5; `ORC-BWXRKIAJNC` |  |
| 858 | Liquid = hcp-Mg + Mg17Sr2 | Liquid: Sr 0.06; hcp-Mg: Sr 0; Mg17Sr2: Sr 0.1 | experimental | [1] Zhong 2006; _cites Klemm 1947_ [doi](https://doi.org/10.1002/zaac.19472550102) | Table 4, p. 6, row 3; `ORC-RJYV6FSFQK` |  |
| 855 | Liquid = hcp-Mg + Mg17Sr2 | Liquid: Sr 0.059; hcp-Mg: Sr 0; Mg17Sr2: Sr 0.1 | experimental | [1] Zhong 2006; _cites Vosskhuler 1939_ | Table 4, p. 6, row 2; `ORC-BYU4UZ2LVX` |  |
| 711 | Liquid = Mg2Sr + fcc-Al | Liquid: Sr 0.65; Mg2Sr: Sr 0.3333; fcc-Al: Sr 1 | experimental | [1] Zhong 2006; _cites Klemm 1947_ [doi](https://doi.org/10.1002/zaac.19472550102) | Table 4, p. 6, row 22; `ORC-NBTSWB3JLH` |  |
| 700 | Liquid = Mg2Sr + fcc-Al | Liquid: Sr 0.6929; Mg2Sr: Sr 0.3387; fcc-Al: Sr 0.9978 | model | [1] Zhong 2006 | Table 4, p. 6, row 21; `ORC-TTKRGFTTSD` |  |
| 699 | Liquid = Mg2Sr + fcc-Al | Liquid: Sr 0.7; Mg2Sr: Sr 0.3333; fcc-Al: Sr 0.855 | experimental | [1] Zhong 2006; _cites Ray 1947_ | Table 4, p. 6, row 23; `ORC-3AAZIHPBEH` |  |
| 699 | Liquid = Mg2Sr + fcc-Al | Liquid: Sr 0.704; Mg2Sr: Sr 0.3333; fcc-Al: Sr 0.937 | experimental | [1] Zhong 2006; _cites Brown 1973_ | Table 4, p. 6, row 24; `ORC-JBFFWKWVE2` |  |

## 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, Mg–Sr system (6)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Mg17Sr2 | [Mg17Sr2](https://data.orchid-project.org/compounds/Mg17Sr2.html) | -4.7963 kJ/mol-atom | 0 | unspecified | -2.741 (mp-aaaaabqy) | -4.846 (oqmd-90157) | [1] Zhong 2006 | Table 2, p. 4, row 2; `ORC-IUACYKCWZO.702541` |  |
| Mg23Sr6 | [Mg23Sr6](https://data.orchid-project.org/compounds/Mg23Sr6.html) | -7.7392 kJ/mol-atom | 0 | unspecified | -6.786 (mp-aaaabtny) | -7.661 (oqmd-17656) | [1] Zhong 2006 | Table 2, p. 4, row 4; `ORC-COIHR6CHDK.0ccd76` |  |
| Mg2Sr-C14 | [Mg2Sr](https://data.orchid-project.org/compounds/Mg2Sr.html) | -10.6189 kJ/mol-atom | 0 | unspecified | -7.73 (mp-aaaaaduy) | -10.194 (oqmd-30729) | [1] Zhong 2006 | Table 2, p. 4, row 14; `ORC-5MBMUIYGMG.35491a` |  |
| Mg2Sr-C14 | [Mg2Sr](https://data.orchid-project.org/compounds/Mg2Sr.html) | -7.117 kJ/mol-atom | 298.15 | experimental | -7.73 (mp-aaaaaduy) | -10.194 (oqmd-30729) | [1] Zhong 2006; _cites King 1964_ [doi](https://doi.org/10.1016/0001-6160%2864%2990056-2) | Table 2, p. 4, row 15; `ORC-X6RKWWBHUK.a2b5b9` |  |
| Mg38Sr9 | [Mg38Sr9](https://data.orchid-project.org/compounds/Mg38Sr9.html) | -6.2742 kJ/mol-atom | 0 | unspecified | -5.716 (mp-aaaabtnz) | -6.185 (oqmd-684928) | [1] Zhong 2006 | Table 2, p. 4, row 3; `ORC-7FWS62Q6L4.772f26` |  |
| Sr2Mg-C14 | [MgSr2](https://data.orchid-project.org/compounds/MgSr2.html) | 36.4176 kJ/mol-atom | 0 | unspecified | 9.104 (mp-aaackgug) | 7.951 (oqmd-290200) | [1] Zhong 2006 | Table 2, p. 4, row 19; `ORC-J4C54RBMBL.c06885` |  |

## Other properties

### Crystal structure (9)

Table: Crystal structure, Mg–Sr system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a; _printed: a (=b)_ | 10.469 Å | 0 | Mg17Sr2; _alloy: Mg 0.894737, Sr 0.105263_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 2; `ORC-CWLUNU7G6V.6e372c` |  |
| Lattice a; _printed: a_ | 14.869 Å | 0 | Mg23Sr6; _alloy: Mg 0.793103, Sr 0.206897_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 4; `ORC-G4TV2772HL.9a93be` |  |
| Lattice a; _printed: a_ | 6.465 Å | 0 | Mg2Sr-C14; _alloy: Mg 0.666667, Sr 0.333333_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 14; `ORC-O5EAOHGYAG.67647a` |  |
| Lattice a; _printed: a (=b)_ | 10.506 Å | 0 | Mg38Sr9; _alloy: Mg 0.808511, Sr 0.191489_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 3; `ORC-DTOF6T5AQO.732aa5` |  |
| Lattice a; _printed: a (=b)_ | 7.424 Å | 0 | Sr2Mg-C14; _alloy: Mg 0.333333, Sr 0.666667_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 19; `ORC-2WOR57XGWY.359c60` |  |
| Lattice c; _printed: c_ | 10.3 Å | 0 | Mg17Sr2; _alloy: Mg 0.894737, Sr 0.105263_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 2; `ORC-CWLUNU7G6V.390b33` |  |
| Lattice c; _printed: c_ | 10.387 Å | 0 | Mg2Sr-C14; _alloy: Mg 0.666667, Sr 0.333333_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 14; `ORC-O5EAOHGYAG.5f1b2d` |  |
| Lattice c; _printed: c_ | 27.882 Å | 0 | Mg38Sr9; _alloy: Mg 0.808511, Sr 0.191489_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 3; `ORC-DTOF6T5AQO.ab01ca` |  |
| Lattice c; _printed: c_ | 11.635 Å | 0 | Sr2Mg-C14; _alloy: Mg 0.333333, Sr 0.666667_ | unspecified | [1] Zhong 2006 | Table 2, p. 4, row 19; `ORC-2WOR57XGWY.416465` |  |

## Sources

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

1. Yu Zhong, Jorge O. Sofo, Alan A. Luo, Zi-Kui Liu, Thermodynamics modeling of the Mg–Sr and Ca–Mg–Sr systems, Journal of Alloys and Compounds 421, 172-178 (2006). [doi:10.1016/j.jallcom.2005.09.076](https://doi.org/10.1016/j.jallcom.2005.09.076)

## 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/).