# Mg–Pd phases

> Mg–Pd system: 14 phases (tier A 9, tier C 1, liquid 1, needs_review 3); 13 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/MG-PD.html · Markdown: https://data.orchid-project.org/phases/pages/MG-PD.md

14 phases (tier A 9, tier C 1, liquid 1, needs_review 3); 13 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=MG-PD) · [full JSON](https://data.orchid-project.org/phases/systems/MG-PD.json) · [Mg–Pd system page](https://data.orchid-project.org/systems/MG-PD.html) · [Markdown](https://data.orchid-project.org/phases/pages/MG-PD.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Mg–Pd system (14)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [BCC_A2](#phase-mg-pd-bcc-a2); _phase:mg-pd:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| [FCC_A1](#phase-mg-pd-fcc-a1); _phase:mg-pd:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2499.87 K, x(Pd) 0.77746–1 | 0 | 1 |
| [HCP_A3](#phase-mg-pd-hcp-a3); _phase:mg-pd:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–924.1 K, x(Pd) 0–0 | 0 | 1 |
| [LIQUID](#phase-mg-pd-liquid); _phase:mg-pd:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 809.1–2500 K, x(Pd) 0–1 | 0 | 1 |
| [MG2PD](#phase-mg-pd-mg2pd); _phase:mg-pd:mg2pd_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–957.85 K, x(Pd) 0.33333–0.33333 | 0 | 1 |
| [MG3PD_D021](#phase-mg-pd-mg3pd-d021); _phase:mg-pd:mg3pd-d021_ | Cu3P · D0_21 · hP24 · P6_3cm (185) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–901.39 K, x(Pd) 0.25–0.25 | 0 | 1 |
| [MG4PD](#phase-mg-pd-mg4pd); _phase:mg-pd:mg4pd_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–842.25 K, x(Pd) 0.201–0.201 | 0 | 1 |
| [MG5PD2_D811](#phase-mg-pd-mg5pd2-d811); _phase:mg-pd:mg5pd2-d811_ | Al5Co2 · D8_11 · hP28 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–967.3 K, x(Pd) 0.28571–0.28571 | 0 | 1 |
| [MG6PD](#phase-mg-pd-mg6pd); _phase:mg-pd:mg6pd_ | Mg6Pd · cF396 · F-43m (216) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–844.1 K, x(Pd) 0.14286–0.14286 | 0 | 1 |
| [MG79PD21](#phase-mg-pd-mg79pd21); _phase:mg-pd:mg79pd21_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–854.87 K, x(Pd) 0.215–0.215 | 0 | 1 |
| [MG9PD11_L2A](#phase-mg-pd-mg9pd11-l2a); _phase:mg-pd:mg9pd11-l2a_ | CuTi-delta · L2_a · tP2 · P4/mmm (123) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1640.47 K, x(Pd) 0.55–0.55 | 0 | 1 |
| [MGPD_B2](#phase-mg-pd-mgpd-b2); _phase:mg-pd:mgpd-b2_ | CsCl · B2 · cP2 · Pm-3m (221) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1275.84 K, x(Pd) 0.5–0.5 | 0 | 1 |
| [MGPD2_C37](#phase-mg-pd-mgpd2-c37); _phase:mg-pd:mgpd2-c37_ | Co2Si · C37 · oP12 · Pnma (62) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–899.38 K, x(Pd) 0.66667–0.66667 | 0 | 1 |
| [MGPD3_D023](#phase-mg-pd-mgpd3-d023); _phase:mg-pd:mgpd3-d023_ | Al3Zr · D0_23 · tI16 · I4/mmm (139) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–980 K, x(Pd) 0.75–0.75 | 0 | 1 |

## BCC_A2 (Mg–Pd)

- Id: `phase:mg-pd: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 1 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:bcc-a2)

Names (2): _corpus: _corpus:phase:mg-pd:bcc-a2  
_tdb: _tdb:MgPd-24Gie.tdb:BCC_A2  


### TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): BCC_A2, type code %B, sha256 `9b298638a793fb71…`

~~~~text
41: PHASE BCC_A2 %B 2 1 3 !
42: CONST BCC_A2 : MG PD : VA% : !
~~~~

## FCC_A1 (Mg–Pd)

- Id: `phase:mg-pd: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 1 of 1 calculated diagram(s): 300–2499.87 K, x(Pd) 0.77746–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:fcc-a1)

Names (2): _corpus: _corpus:phase:mg-pd:fcc-a1  
_tdb: _tdb:MgPd-24Gie.tdb:FCC_A1  


### TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): FCC_A1, type code %A, sha256 `9b298638a793fb71…`

~~~~text
36: PHASE FCC_A1 %A 2 1 1 !
37: CONST FCC_A1 : MG PD% : VA% : !
~~~~

## HCP_A3 (Mg–Pd)

- Id: `phase:mg-pd: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 1 of 1 calculated diagram(s): 300–924.1 K, x(Pd) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:hcp-a3)

Names (2): _corpus: _corpus:phase:mg-pd:hcp-a3  
_tdb: _tdb:MgPd-24Gie.tdb:HCP_A3  


### TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): HCP_A3, type code %A, sha256 `9b298638a793fb71…`

~~~~text
46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : MG% PD : VA% : !
~~~~

## LIQUID (Mg–Pd)

- Id: `phase:mg-pd:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 809.1–2500 K, x(Pd) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:liquid)

Names (2): _corpus: _corpus:phase:mg-pd:liquid  
_tdb: _tdb:MgPd-24Gie.tdb:LIQUID  


### TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): LIQUID, type code %, sha256 `9b298638a793fb71…`

~~~~text
31: PHASE LIQUID:L % 1 1 !
32: CONST LIQUID:L : MG PD : !
~~~~

## MG2PD (Mg–Pd)

- Id: `phase:mg-pd:mg2pd`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_mp; no_structure_token
- Candidate (dft_oqmd): I4/mcm (140) — on-hull OQMD Mg2 Pd1 at x(PD)=0.3333
- Candidate (tdb_comment): NiTi2 · cF96 · Fd-3m — MgPd-24Gie.tdb: 'Prototype NiTi2 (cF96, Fd-3m)'
- Stoichiometry: Mg 0.6667, Pd 0.3333
- Stability: stable in 1 of 1 calculated diagram(s): 300–957.85 K, x(Pd) 0.33333–0.33333
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mg2pd)

Names (2): _corpus: _corpus:phase:mg-pd:mg2pd  
_tdb: _tdb:MgPd-24Gie.tdb:MG2PD  


### TDB models of MG2PD (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MG2PD, type code %, sha256 `9b298638a793fb71…`

~~~~text
76: PHASE MG2PD % 2 2 1 !
77: CONST MG2PD : MG : PD : !
~~~~

## MG3PD_D021 (Mg–Pd)

- Id: `phase:mg-pd:mg3pd-d021`; status `assigned`
- Structure: Cu3P · D0_21 · hP24 · P6_3cm (185); type `st:d0-21-cu3p-hp24`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaabbrs and oqmd-25113, space group 185
- Stoichiometry: Mg 0.7500, Pd 0.2500
- Stability: stable in 1 of 1 calculated diagram(s): 300–901.39 K, x(Pd) 0.25–0.25
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mg3pd-d021)

Names (4): _corpus: _corpus:phase:mg-pd:mg3pd-d021  
_mp: _mp:mp-aaaabbrs  
_oqmd: _oqmd:oqmd-25113  
_tdb: _tdb:MgPd-24Gie.tdb:MG3PD_D021  


### TDB models of MG3PD_D021 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MG3PD_D021, type code %, sha256 `9b298638a793fb71…`

~~~~text
66: PHASE MG3PD_D021 % 2 3 1 !
67: CONST MG3PD_D021 : MG : PD : !
~~~~

## MG4PD (Mg–Pd)

- Id: `phase:mg-pd:mg4pd`; status `needs_review`
- No structure assigned. Why: assessment_declared_compound_differs_from_model_composition; no_on_hull_entry_in_both; no_structure_token
- Candidate (sgte_mmc2): Mg4Pd · oC1536 · Cmme (67) — Hallstedt 2025 mmc2 row for MG4PD: Mg4Pd (also Mg306Pd77)
- Candidate (tdb_comment): Mg4Pd · oC1536 · Cmme — MgPd-24Gie.tdb: 'Prototype Mg4Pd (oC1536, Cmme), Mg306Pd77'
- Stoichiometry: Mg 0.7990, Pd 0.2010
- Stability: stable in 1 of 1 calculated diagram(s): 300–842.25 K, x(Pd) 0.201–0.201
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mg4pd)

Names (2): _corpus: _corpus:phase:mg-pd:mg4pd  
_tdb: _tdb:MgPd-24Gie.tdb:MG4PD  


### TDB models of MG4PD (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MG4PD, type code %, sha256 `9b298638a793fb71…`

~~~~text
56: PHASE MG4PD % 2 0.799 0.201 !
57: CONST MG4PD : MG : PD : !
~~~~

## MG5PD2_D811 (Mg–Pd)

- Id: `phase:mg-pd:mg5pd2-d811`; status `assigned`
- Structure: Al5Co2 · D8_11 · hP28 · P6_3/mmc (194); type `st:d8-11-al5co2-hp28`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaadoo and oqmd-25820, space group 194
- Stoichiometry: Mg 0.7143, Pd 0.2857
- Stability: stable in 1 of 1 calculated diagram(s): 300–967.3 K, x(Pd) 0.28571–0.28571
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mg5pd2-d811)

Names (4): _corpus: _corpus:phase:mg-pd:mg5pd2-d811  
_mp: _mp:mp-aaaaadoo  
_oqmd: _oqmd:oqmd-25820  
_tdb: _tdb:MgPd-24Gie.tdb:MG5PD2_D811  


### TDB models of MG5PD2_D811 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MG5PD2_D811, type code %, sha256 `9b298638a793fb71…`

~~~~text
71: PHASE MG5PD2_D811 % 2 5 2 !
72: CONST MG5PD2_D811 : MG : PD : !
~~~~

## MG6PD (Mg–Pd)

- Id: `phase:mg-pd:mg6pd`; status `assigned`
- Structure: Mg6Pd · cF396 · F-43m (216); type `st:mg6pd-cf396`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
- Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833)
- Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Mg 0.8571, Pd 0.1429
- Stability: stable in 1 of 1 calculated diagram(s): 300–844.1 K, x(Pd) 0.14286–0.14286
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mg6pd)

Names (2): _corpus: _corpus:phase:mg-pd:mg6pd  
_tdb: _tdb:MgPd-24Gie.tdb:MG6PD  


### TDB models of MG6PD (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MG6PD, type code %, sha256 `9b298638a793fb71…`

~~~~text
51: PHASE MG6PD % 2 6 1 !
52: CONST MG6PD : MG : PD : !
~~~~

## MG79PD21 (Mg–Pd)

- Id: `phase:mg-pd:mg79pd21`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (Mg79Pd21) — Hallstedt 2025 mmc2 row for MG79PD21: Mg79Pd21
- Stoichiometry: Mg 0.7850, Pd 0.2150
- Stability: stable in 1 of 1 calculated diagram(s): 300–854.87 K, x(Pd) 0.215–0.215
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mg79pd21)

Names (2): _corpus: _corpus:phase:mg-pd:mg79pd21  
_tdb: _tdb:MgPd-24Gie.tdb:MG79PD21  


### TDB models of MG79PD21 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MG79PD21, type code %, sha256 `9b298638a793fb71…`

~~~~text
61: PHASE MG79PD21 % 2 0.785 0.215 !
62: CONST MG79PD21 : MG : PD : !
~~~~

## MG9PD11_L2A (Mg–Pd)

- Id: `phase:mg-pd:mg9pd11-l2a`; status `assigned`
- Structure: CuTi-delta · L2_a · tP2 · P4/mmm (123); type `st:l2-a-cuti-delta-tp2`; tier A: standard phase name; confidence high
- Stoichiometry: Mg 0.4500, Pd 0.5500
- Stability: stable in 1 of 1 calculated diagram(s): 300–1640.47 K, x(Pd) 0.55–0.55
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mg9pd11-l2a)

Names (2): _corpus: _corpus:phase:mg-pd:mg9pd11-l2a  
_tdb: _tdb:MgPd-24Gie.tdb:MG9PD11_L2A  


### TDB models of MG9PD11_L2A (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MG9PD11_L2A, type code %, sha256 `9b298638a793fb71…`

~~~~text
86: PHASE MG9PD11_L2A % 2 9 11 !
87: CONST MG9PD11_L2A : MG : PD : !
~~~~

## MGPD_B2 (Mg–Pd)

- Id: `phase:mg-pd:mgpd-b2`; status `assigned`
- Structure: CsCl · B2 · cP2 · Pm-3m (221); type `st:b2-cscl-cp2`; tier A: standard phase name; confidence high
- Stoichiometry: Mg 0.5000, Pd 0.5000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1275.84 K, x(Pd) 0.5–0.5
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mgpd-b2)

Names (2): _corpus: _corpus:phase:mg-pd:mgpd-b2  
_tdb: _tdb:MgPd-24Gie.tdb:MGPD_B2  


### TDB models of MGPD_B2 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MGPD_B2, type code %, sha256 `9b298638a793fb71…`

~~~~text
81: PHASE MGPD_B2 % 2 1 1 !
82: CONST MGPD_B2 : MG : PD : !
~~~~

## MGPD2_C37 (Mg–Pd)

- Id: `phase:mg-pd:mgpd2-c37`; status `assigned`
- Structure: Co2Si · C37 · oP12 · Pnma (62); type `st:c37-co2si-op12`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaswb and oqmd-19257, space group 62
- Stoichiometry: Mg 0.3333, Pd 0.6667
- Stability: stable in 1 of 1 calculated diagram(s): 300–899.38 K, x(Pd) 0.66667–0.66667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mgpd2-c37)

Names (4): _corpus: _corpus:phase:mg-pd:mgpd2-c37  
_mp: _mp:mp-aaaaaswb  
_oqmd: _oqmd:oqmd-19257  
_tdb: _tdb:MgPd-24Gie.tdb:MGPD2_C37  


### TDB models of MGPD2_C37 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MGPD2_C37, type code %, sha256 `9b298638a793fb71…`

~~~~text
91: PHASE MGPD2_C37 % 2 1 2 !
92: CONST MGPD2_C37 : MG : PD : !
~~~~

## MGPD3_D023 (Mg–Pd)

- Id: `phase:mg-pd:mgpd3-d023`; status `assigned`
- Structure: Al3Zr · D0_23 · tI16 · I4/mmm (139); type `st:d0-23-al3zr-ti16`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaswc and oqmd-19258, space group 139
- Stoichiometry: Mg 0.2500, Pd 0.7500
- Stability: stable in 1 of 1 calculated diagram(s): 300–980 K, x(Pd) 0.75–0.75
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mg-pd:mgpd3-d023)

Names (4): _corpus: _corpus:phase:mg-pd:mgpd3-d023  
_mp: _mp:mp-aaaaaswc  
_oqmd: _oqmd:oqmd-19258  
_tdb: _tdb:MgPd-24Gie.tdb:MGPD3_D023  


### TDB models of MGPD3_D023 (1): PHASE and CONSTITUENT statements as written

[MgPd-24Gie.tdb](https://orchid-project.org/data/databases/sgte-binary/MgPd-24Gie.tdb): MGPD3_D023, type code %, sha256 `9b298638a793fb71…`

~~~~text
96: PHASE MGPD3_D023 % 2 1 3 !
97: CONST MGPD3_D023 : MG : PD : !
~~~~

## 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).