# Ni–Se phases > Ni–Se system: 10 phases (tier A 7, tier C 1, liquid 1, needs_review 1); 8 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/NI-SE.html · Markdown: https://data.orchid-project.org/phases/pages/NI-SE.md 10 phases (tier A 7, tier C 1, liquid 1, needs_review 1); 8 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=NI-SE) · [full JSON](https://data.orchid-project.org/phases/systems/NI-SE.json) · [Ni–Se system page](https://data.orchid-project.org/systems/NI-SE.html) · [Markdown](https://data.orchid-project.org/phases/pages/NI-SE.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the Ni–Se system (10) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [HEXAGONAL_A8](#phase-ni-se-a8-hexagonal); _phase:ni-se:a8-hexagonal_ | gamma-Se · A8 · hP3 · P3_121 (152) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–497.13 K, x(Se) 1–1 | 3 | 1 | | [BCC_A2](#phase-ni-se-bcc-a2); _phase:ni-se: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-ni-se-fcc-a1); _phase:ni-se:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1741.24 K, x(Se) 0–0 | 6 | 1 | | [HCP_A3](#phase-ni-se-hcp-a3); _phase:ni-se:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 | | [LIQUID](#phase-ni-se-liquid); _phase:ni-se:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 490.13–2500 K, x(Se) 0–1 | 18 | 1 | | [NI3SE2_HT](#phase-ni-se-ni3se2); _phase:ni-se:ni3se2_ | | needs_review | stable in 1 of 1 calculated diagram(s): 839.29–1057.48 K, x(Se) 0.405–0.405 | 14 | 1 | | [NI3SE2_D5E](#phase-ni-se-ni3se2-d5e); _phase:ni-se:ni3se2-d5e_ | Ni3S2 · D5_e · hR5 · R32 (155) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–865.64 K, x(Se) 0.4–0.4 | 8 | 1 | | [NI6SE5](#phase-ni-se-ni6se5); _phase:ni-se:ni6se5_ | Ni6Se5 · oP88 · Pca2_1 (29) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 672.72–920.29 K, x(Se) 0.45455–0.45455 | 8 | 1 | | [NISE_B81](#phase-ni-se-nise-b81); _phase:ni-se:nise-b81_ | NiAs · B8_1 · hP4 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1231.3 K, x(Se) 0.50889–0.57024 | 19 | 1 | | [NISE2_C2](#phase-ni-se-nise2-c2); _phase:ni-se:nise2-c2_ | beta-FeS2 · C2 · cP12 · Pa-3 (205) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1131.01 K, x(Se) 0.66667–0.66667 | 9 | 1 | ## HEXAGONAL_A8 (Ni–Se) - Id: `phase:ni-se:a8-hexagonal`; status `assigned` - Structure: gamma-Se · A8 · hP3 · P3_121 (152); type `st:a8-gamma-se-hp3`; tier A: standard phase name; confidence high - Stoichiometry: Se 1.0000 - Stability: stable in 1 of 1 calculated diagram(s): 300–497.13 K, x(Se) 1–1 - Literature: 3 values (3 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-se:a8-hexagonal) Names (4): _corpus: _corpus:phase:ni-se:a8-hexagonal, corpus:phase:ni-se:hexagonal-a8 _paper: _paper:10.1007/s11669-021-00906-9:hex_A8 (Se) _tdb: _tdb:NiSe-21Zob.tdb:HEXAGONAL_A8 ### TDB models of HEXAGONAL_A8 (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): HEXAGONAL_A8, type code %, sha256 `1b075f9b26619344…` ~~~~text 50: PHASE HEXAGONAL_A8 % 1 1 ! 51: CONST HEXAGONAL_A8 : SE : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/bf00905165](https://doi.org/10.1007/bf00905165) K. L. Komarek, K. Wessely, Die Systeme Nickel?Selen und Kobalt?Nickel-Selen, Monatshefte fr Chemie 103, 923-933 (1972). _cited as the source of values for this phase_ ## BCC_A2 (Ni–Se) - Id: `phase:ni-se:bcc-a2`; status `assigned` - Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high - Stoichiometry: Ni 1.0000 - 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:ni-se:bcc-a2) Names (2): _corpus: _corpus:phase:ni-se:bcc-a2 _tdb: _tdb:NiSe-21Zob.tdb:BCC_A2 ### TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): BCC_A2, type code %B, sha256 `1b075f9b26619344…` ~~~~text 40: PHASE BCC_A2 %B 2 1 3 ! 41: CONST BCC_A2 : NI : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase_ ## FCC_A1 (Ni–Se) - Id: `phase:ni-se:fcc-a1`; status `assigned` - Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high - Stoichiometry: Ni 1.0000 - Stability: stable in 1 of 1 calculated diagram(s): 300–1741.24 K, x(Se) 0–0 - Literature: 6 values (6 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-se:fcc-a1) Names (3): _corpus: _corpus:phase:ni-se:fcc-a1 _paper: _paper:10.1007/s11669-021-00906-9:FCC_A1 _tdb: _tdb:NiSe-21Zob.tdb:FCC_A1 ### TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): FCC_A1, type code %A, sha256 `1b075f9b26619344…` ~~~~text 35: PHASE FCC_A1 %A 2 1 1 ! 36: CONST FCC_A1 : NI : VA : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/bf00905165](https://doi.org/10.1007/bf00905165) K. L. Komarek, K. Wessely, Die Systeme Nickel?Selen und Kobalt?Nickel-Selen, Monatshefte fr Chemie 103, 923-933 (1972). _cited as the source of values for this phase_ ## HCP_A3 (Ni–Se) - Id: `phase:ni-se:hcp-a3`; status `assigned` - Structure: Mg · A3 · hP2 · P6_3/mmc (194); type `st:a3-mg-hp2`; tier A: standard phase name; confidence high - Stoichiometry: Ni 1.0000 - 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:ni-se:hcp-a3) Names (2): _corpus: _corpus:phase:ni-se:hcp-a3 _tdb: _tdb:NiSe-21Zob.tdb:HCP_A3 ### TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): HCP_A3, type code %A, sha256 `1b075f9b26619344…` ~~~~text 45: PHASE HCP_A3 %A 2 1 0.5 ! 46: CONST HCP_A3 : NI : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase_ ## LIQUID (Ni–Se) - Id: `phase:ni-se:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 490.13–2500 K, x(Se) 0–1 - Literature: 18 values (18 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-se:liquid) Names (4): _corpus: _corpus:phase:ni-se:liquid _paper: _paper:10.1007/s11669-021-00906-9:Liquid, paper:10.1007/s11669-021-00906-9:Liquid’ _tdb: _tdb:NiSe-21Zob.tdb:LIQUID ### TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): LIQUID, type code %, sha256 `1b075f9b26619344…` ~~~~text 30: PHASE LIQUID:L % 1 1 ! 31: CONST LIQUID:L : NI NISE SE : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/bf00905165](https://doi.org/10.1007/bf00905165) K. L. Komarek, K. Wessely, Die Systeme Nickel?Selen und Kobalt?Nickel-Selen, Monatshefte fr Chemie 103, 923-933 (1972). _cited as the source of values for this phase_ ## NI3SE2_HT (Ni–Se) - Id: `phase:ni-se:ni3se2`; status `needs_review` - No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete - Candidate (literature_printed): (Ni3Se2-ht) · cF\* — printed with a label mapped to this phase - Candidate (sgte_mmc2): (Ni3Se2-ht) — Hallstedt 2025 mmc2 row for NI3SE2_HT: Ni3Se2 (high T) - Stoichiometry: Ni 0.5950, Se 0.4050 - Stability: stable in 1 of 1 calculated diagram(s): 839.29–1057.48 K, x(Se) 0.405–0.405 - Literature: 14 values (14 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-se:ni3se2) Names (4): _corpus: _corpus:phase:ni-se:ni3se2, corpus:phase:ni-se:ni3se2-ht _paper: _paper:10.1007/s11669-021-00906-9:Ni3Se2_HT _tdb: _tdb:NiSe-21Zob.tdb:NI3SE2_HT ### TDB models of NI3SE2_HT (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): NI3SE2_HT, type code %, sha256 `1b075f9b26619344…` ~~~~text 60: PHASE NI3SE2_HT % 2 0.595 0.405 ! 61: CONST NI3SE2_HT : NI : SE : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/bf00905165](https://doi.org/10.1007/bf00905165) K. L. Komarek, K. Wessely, Die Systeme Nickel?Selen und Kobalt?Nickel-Selen, Monatshefte fr Chemie 103, 923-933 (1972). _cited as the source of values for this phase_ ## NI3SE2_D5E (Ni–Se) - Id: `phase:ni-se:ni3se2-d5e`; status `assigned` - Structure: Ni3S2 · D5_e · hR5 · R32 (155); type `st:d5-e-ni3s2-hr5`; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaaaadbc and oqmd-5233, space group 155 - Stoichiometry: Ni 0.6000, Se 0.4000 - Stability: stable in 1 of 1 calculated diagram(s): 300–865.64 K, x(Se) 0.4–0.4 - Literature: 8 values (8 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-se:ni3se2-d5e) Names (5): _corpus: _corpus:phase:ni-se:ni3se2-d5e _mp: _mp:mp-aaaaadbc _oqmd: _oqmd:oqmd-5233 _paper: _paper:10.1007/s11669-021-00906-9:Ni3Se2_LT _tdb: _tdb:NiSe-21Zob.tdb:NI3SE2_D5E ### TDB models of NI3SE2_D5E (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): NI3SE2_D5E, type code %, sha256 `1b075f9b26619344…` ~~~~text 55: PHASE NI3SE2_D5E % 2 3 2 ! 56: CONST NI3SE2_D5E : NI : SE : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/bf00905165](https://doi.org/10.1007/bf00905165) K. L. Komarek, K. Wessely, Die Systeme Nickel?Selen und Kobalt?Nickel-Selen, Monatshefte fr Chemie 103, 923-933 (1972). _cited as the source of values for this phase_ ## NI6SE5 (Ni–Se) - Id: `phase:ni-se:ni6se5`; status `assigned` - Structure: Ni6Se5 · oP88 · Pca2_1 (29); type `st:ni6se5-op88`; 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: Ni 0.5455, Se 0.4545 - Stability: stable in 1 of 1 calculated diagram(s): 672.72–920.29 K, x(Se) 0.45455–0.45455 - Literature: 8 values (8 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-se:ni6se5) Names (3): _corpus: _corpus:phase:ni-se:ni6se5 _paper: _paper:10.1007/s11669-021-00906-9:Ni6Se5 _tdb: _tdb:NiSe-21Zob.tdb:NI6SE5 ### TDB models of NI6SE5 (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): NI6SE5, type code %, sha256 `1b075f9b26619344…` ~~~~text 65: PHASE NI6SE5 % 2 6 5 ! 66: CONST NI6SE5 : NI : SE : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/bf00905165](https://doi.org/10.1007/bf00905165) K. L. Komarek, K. Wessely, Die Systeme Nickel?Selen und Kobalt?Nickel-Selen, Monatshefte fr Chemie 103, 923-933 (1972). _cited as the source of values for this phase_ ## NISE_B81 (Ni–Se) - Id: `phase:ni-se:nise-b81`; status `assigned` - Structure: NiAs · B8_1 · hP4 · P6_3/mmc (194); type `st:b8-1-nias-hp4`; tier A: standard phase name; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 300–1231.3 K, x(Se) 0.50889–0.57024 - Literature: 19 values (19 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-se:nise-b81) Names (3): _corpus: _corpus:phase:ni-se:nise-b81 _paper: _paper:10.1007/s11669-021-00906-9:NiSe _tdb: _tdb:NiSe-21Zob.tdb:NISE_B81 ### TDB models of NISE_B81 (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): NISE_B81, type code %, sha256 `1b075f9b26619344…` ~~~~text 70: PHASE NISE_B81 % 2 1 1 ! 71: CONST NISE_B81 : NI% SE : SE : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/bf00905165](https://doi.org/10.1007/bf00905165) K. L. Komarek, K. Wessely, Die Systeme Nickel?Selen und Kobalt?Nickel-Selen, Monatshefte fr Chemie 103, 923-933 (1972). _cited as the source of values for this phase_ - [doi:10.3891/acta.chem.scand.26-2085](https://doi.org/10.3891/acta.chem.scand.26-2085) Fredrik Grønvold, Mats Nygren, D. Simov, H. A. Øye, Sigfrid Svensson, High-Temperature Reaction Calorimeter. Enthalpy of Formation of Iron Selenides and Nickel Selenides at 1050 K., Acta Chem. Scand. 26, 2085-2099 (1972). _cited as the source of values for this phase_ ## NISE2_C2 (Ni–Se) - Id: `phase:ni-se:nise2-c2`; status `assigned` - Structure: beta-FeS2 · C2 · cP12 · Pa-3 (205); type `st:c2-beta-fes2-cp12`; tier A: standard phase name; confidence high - Stoichiometry: Ni 0.3333, Se 0.6667 - Stability: stable in 1 of 1 calculated diagram(s): 300–1131.01 K, x(Se) 0.66667–0.66667 - Literature: 9 values (9 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ni-se:nise2-c2) Names (3): _corpus: _corpus:phase:ni-se:nise2-c2 _paper: _paper:10.1007/s11669-021-00906-9:NiSe2 _tdb: _tdb:NiSe-21Zob.tdb:NISE2_C2 ### TDB models of NISE2_C2 (1): PHASE and CONSTITUENT statements as written [NiSe-21Zob.tdb](https://orchid-project.org/data/databases/sgte-binary/NiSe-21Zob.tdb): NISE2_C2, type code %, sha256 `1b075f9b26619344…` ~~~~text 75: PHASE NISE2_C2 % 2 1 2 ! 76: CONST NISE2_C2 : NI : SE : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1007/s11669-021-00906-9](https://doi.org/10.1007/s11669-021-00906-9) Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/bf00905165](https://doi.org/10.1007/bf00905165) K. L. Komarek, K. Wessely, Die Systeme Nickel?Selen und Kobalt?Nickel-Selen, Monatshefte fr Chemie 103, 923-933 (1972). _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).