# Bi–Nd phases

> Bi–Nd system: 12 phases (tier A 8, tier C 3, liquid 1); 10 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/BI-ND.html · Markdown: https://data.orchid-project.org/phases/pages/BI-ND.md

12 phases (tier A 8, tier C 3, liquid 1); 10 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=BI-ND) · [full JSON](https://data.orchid-project.org/phases/systems/BI-ND.json) · [Bi–Nd system page](https://data.orchid-project.org/systems/BI-ND.html) · [Markdown](https://data.orchid-project.org/phases/pages/BI-ND.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Bi–Nd system (12)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [RHOMBOHEDRAL_A7](#phase-bi-nd-a7-rhombohedral); _phase:bi-nd:a7-rhombohedral_ | alpha-As · A7 · hR2 · R-3m (166) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–544.55 K, x(Nd) 0–0 | 3 | 2 |
| [BCC_A2](#phase-bi-nd-bcc-a2); _phase:bi-nd:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 1117.25–2164 K, x(Nd) 0.99214–1 | 4 | 2 |
| [BI2ND](#phase-bi-nd-bi2nd); _phase:bi-nd:bi2nd_ | Sb2Sm · oC24 · Cmce (64) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–929.12 K, x(Nd) 0.33333–0.33333 | 5 | 2 |
| [BI3ND4_D73](#phase-bi-nd-bi3nd4-d73); _phase:bi-nd:bi3nd4-d73_ | Th3P4 · D7_3 · cI28 · I-43d (220) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1840.57 K, x(Nd) 0.57143–0.57143 | 4 | 2 |
| [BI3ND5_D88](#phase-bi-nd-bi3nd5-d88); _phase:bi-nd:bi3nd5-d88_ | Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1720.74 K, x(Nd) 0.625–0.625 | 4 | 2 |
| [BI7ND3](#phase-bi-nd-bi7nd3); _phase:bi-nd:bi7nd3_ | (U0.5Ho0.5)3Sb7 · oI40 · Immm (71) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–796.87 K, x(Nd) 0.3–0.3 | 0 | 1 |
| [BIND_B1](#phase-bi-nd-bind-b1); _phase:bi-nd:bind-b1_ | NaCl · B1 · cF8 · Fm-3m (225) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–2048.1 K, x(Nd) 0.5–0.5 | 6 | 2 |
| [BIND2](#phase-bi-nd-bind2); _phase:bi-nd:bind2_ | La2Sb · tI12 · I4/mmm (139) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–1527.13 K, x(Nd) 0.66667–0.66667 | 6 | 2 |
| [DHCP](#phase-bi-nd-dhcp-a3); _phase:bi-nd:dhcp-a3_ | alpha-La · A3' · hP4 · P6_3/mmc (194) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1283 K, x(Nd) 1–1 | 2 | 2 |
| [FCC_A1](#phase-bi-nd-fcc-a1); _phase:bi-nd:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 2 calculated diagram(s) | 0 | 2 |
| [HCP_A3](#phase-bi-nd-hcp-a3); _phase:bi-nd:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 2 calculated diagram(s) | 0 | 2 |
| [LIQUID](#phase-bi-nd-liquid); _phase:bi-nd:liquid_ | liquid | liquid | stable in 2 of 2 calculated diagram(s): 544.45–2500 K, x(Nd) 0–1 | 15 | 2 |

## RHOMBOHEDRAL_A7 (Bi–Nd)

- Id: `phase:bi-nd:a7-rhombohedral`; status `assigned`
- Structure: alpha-As · A7 · hR2 · R-3m (166); type `st:a7-alpha-as-hr2`; tier A: standard phase name; confidence high
- Stability: stable in 2 of 2 calculated diagram(s): 300–544.55 K, x(Nd) 0–0
- Literature: 3 values (3 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:a7-rhombohedral)

Names (5): _corpus: _corpus:phase:bi-nd:a7-rhombohedral, corpus:phase:bi-nd:rhombohedral-a7  
_paper: _paper:10.1016/j.jallcom.2010.03.042:(Bi)  
_tdb: _tdb:BiNd-10Wan.tdb:RHOMBOHEDRAL_A7, tdb:BiNd-22Im.tdb:RHOMBOHEDRAL_A7  


### TDB models of RHOMBOHEDRAL_A7 (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `b10b8cb0c572dee3…`

~~~~text
50: PHASE RHOMBOHEDRAL_A7 % 1 1 !
51: CONST RHOMBOHEDRAL_A7 : BI% ND : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `9860ba3a27df60f3…`

~~~~text
51: PHASE RHOMBOHEDRAL_A7 % 1 1 !
52: CONST RHOMBOHEDRAL_A7 : BI% ND : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## BCC_A2 (Bi–Nd)

- Id: `phase:bi-nd: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 2 of 2 calculated diagram(s): 1117.25–2164 K, x(Nd) 0.99214–1
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:bcc-a2)

Names (4): _corpus: _corpus:phase:bi-nd:bcc-a2  
_paper: _paper:10.1016/j.jallcom.2010.03.042:(βNd)  
_tdb: _tdb:BiNd-10Wan.tdb:BCC_A2, tdb:BiNd-22Im.tdb:BCC_A2  


### TDB models of BCC_A2 (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): BCC_A2, type code %B, sha256 `b10b8cb0c572dee3…`

~~~~text
35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : BI ND% : VA : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): BCC_A2, type code %B, sha256 `9860ba3a27df60f3…`

~~~~text
36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : BI ND% : VA : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## BI2ND (Bi–Nd)

- Id: `phase:bi-nd:bi2nd`; status `assigned`
- Structure: Sb2Sm · oC24 · Cmce (64); type `st:sb2sm-oc24`; 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_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Bi 0.6667, Nd 0.3333
- Stability: stable in 2 of 2 calculated diagram(s): 300–929.12 K, x(Nd) 0.33333–0.33333
- Literature: 5 values (5 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:bi2nd)

Names (4): _corpus: _corpus:phase:bi-nd:bi2nd  
_paper: _paper:10.1016/j.jallcom.2010.03.042:Bi2Nd  
_tdb: _tdb:BiNd-10Wan.tdb:BI2ND, tdb:BiNd-22Im.tdb:BI2ND  


### TDB models of BI2ND (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): BI2ND, type code %, sha256 `b10b8cb0c572dee3…`

~~~~text
55: PHASE BI2ND % 2 2 1 !
56: CONST BI2ND : BI : ND : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): BI2ND, type code %, sha256 `9860ba3a27df60f3…`

~~~~text
61: PHASE BI2ND % 2 2 1 !
62: CONST BI2ND : BI : ND : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## BI3ND4_D73 (Bi–Nd)

- Id: `phase:bi-nd:bi3nd4-d73`; status `assigned`
- Structure: Th3P4 · D7_3 · cI28 · I-43d (220); type `st:d7-3-th3p4-ci28`; tier A: standard phase name; confidence high
- Stoichiometry: Bi 0.4286, Nd 0.5714
- Stability: stable in 2 of 2 calculated diagram(s): 300–1840.57 K, x(Nd) 0.57143–0.57143
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:bi3nd4-d73)

Names (4): _corpus: _corpus:phase:bi-nd:bi3nd4-d73  
_paper: _paper:10.1016/j.jallcom.2010.03.042:Bi3Nd4  
_tdb: _tdb:BiNd-10Wan.tdb:BI3ND4_D73, tdb:BiNd-22Im.tdb:BI3ND4_D73  


### TDB models of BI3ND4_D73 (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): BI3ND4_D73, type code %, sha256 `b10b8cb0c572dee3…`

~~~~text
65: PHASE BI3ND4_D73 % 2 3 4 !
66: CONST BI3ND4_D73 : BI : ND : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): BI3ND4_D73, type code %, sha256 `9860ba3a27df60f3…`

~~~~text
71: PHASE BI3ND4_D73 % 2 3 4 !
72: CONST BI3ND4_D73 : BI : ND : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## BI3ND5_D88 (Bi–Nd)

- Id: `phase:bi-nd:bi3nd5-d88`; status `assigned`
- Structure: Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193); type `st:d8-8-mn5si3-hp16`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaackxwg and oqmd-28745, space group 193
- Stoichiometry: Bi 0.3750, Nd 0.6250
- Stability: stable in 2 of 2 calculated diagram(s): 300–1720.74 K, x(Nd) 0.625–0.625
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:bi3nd5-d88)

Names (6): _corpus: _corpus:phase:bi-nd:bi3nd5-d88  
_mp: _mp:mp-aaackxwg  
_oqmd: _oqmd:oqmd-28745  
_paper: _paper:10.1016/j.jallcom.2010.03.042:Bi3Nd5  
_tdb: _tdb:BiNd-10Wan.tdb:BI3ND5_D88, tdb:BiNd-22Im.tdb:BI3ND5_D88  


### TDB models of BI3ND5_D88 (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): BI3ND5_D88, type code %, sha256 `b10b8cb0c572dee3…`

~~~~text
70: PHASE BI3ND5_D88 % 2 3 5 !
71: CONST BI3ND5_D88 : BI : ND : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): BI3ND5_D88, type code %, sha256 `9860ba3a27df60f3…`

~~~~text
76: PHASE BI3ND5_D88 % 2 3 5 !
77: CONST BI3ND5_D88 : BI : ND : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## BI7ND3 (Bi–Nd)

- Id: `phase:bi-nd:bi7nd3`; status `assigned`
- Structure: (U0.5Ho0.5)3Sb7 · oI40 · Immm (71); type `st:u0-5ho0-5-3sb7-oi40`; 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: Bi 0.7000, Nd 0.3000
- Stability: stable in 1 of 1 calculated diagram(s): 300–796.87 K, x(Nd) 0.3–0.3
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:bi7nd3)

Names (2): _corpus: _corpus:phase:bi-nd:bi7nd3  
_tdb: _tdb:BiNd-22Im.tdb:BI7ND3  


### TDB models of BI7ND3 (1): PHASE and CONSTITUENT statements as written

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): BI7ND3, type code %, sha256 `9860ba3a27df60f3…`

~~~~text
56: PHASE BI7ND3 % 2 7 3 !
57: CONST BI7ND3 : BI : ND : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## BIND_B1 (Bi–Nd)

- Id: `phase:bi-nd:bind-b1`; status `assigned`
- Structure: NaCl · B1 · cF8 · Fm-3m (225); type `st:b1-nacl-cf8`; tier A: standard phase name; confidence high
- Stoichiometry: Bi 0.5000, Nd 0.5000
- Stability: stable in 2 of 2 calculated diagram(s): 300–2048.1 K, x(Nd) 0.5–0.5
- Literature: 6 values (6 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:bind-b1)

Names (4): _corpus: _corpus:phase:bi-nd:bind-b1  
_paper: _paper:10.1016/j.jallcom.2010.03.042:BiNd  
_tdb: _tdb:BiNd-10Wan.tdb:BIND_B1, tdb:BiNd-22Im.tdb:BIND_B1  


### TDB models of BIND_B1 (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): BIND_B1, type code %, sha256 `b10b8cb0c572dee3…`

~~~~text
60: PHASE BIND_B1 % 2 1 1 !
61: CONST BIND_B1 : BI : ND : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): BIND_B1, type code %, sha256 `9860ba3a27df60f3…`

~~~~text
66: PHASE BIND_B1 % 2 1 1 !
67: CONST BIND_B1 : BI : ND : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## BIND2 (Bi–Nd)

- Id: `phase:bi-nd:bind2`; status `assigned`
- Structure: La2Sb · tI12 · I4/mmm (139); type `st:la2sb-ti12`; 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: Bi 0.3333, Nd 0.6667
- Stability: stable in 2 of 2 calculated diagram(s): 300–1527.13 K, x(Nd) 0.66667–0.66667
- Literature: 6 values (6 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:bind2)

Names (4): _corpus: _corpus:phase:bi-nd:bind2  
_paper: _paper:10.1016/j.jallcom.2010.03.042:BiNd2  
_tdb: _tdb:BiNd-10Wan.tdb:BIND2, tdb:BiNd-22Im.tdb:BIND2  


### TDB models of BIND2 (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): BIND2, type code %, sha256 `b10b8cb0c572dee3…`

~~~~text
75: PHASE BIND2 % 2 1 2 !
76: CONST BIND2 : BI : ND : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): BIND2, type code %, sha256 `9860ba3a27df60f3…`

~~~~text
81: PHASE BIND2 % 2 1 2 !
82: CONST BIND2 : BI : ND : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## DHCP (Bi–Nd)

- Id: `phase:bi-nd:dhcp-a3`; status `assigned`
- Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type `st:a3-alpha-la-hp4`; tier A: standard phase name; confidence high
- Stability: stable in 2 of 2 calculated diagram(s): 300–1283 K, x(Nd) 1–1
- Literature: 2 values (2 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:dhcp-a3)

Names (5): _corpus: _corpus:phase:bi-nd:dhcp-a3, corpus:phase:bi-nd:dhcp  
_paper: _paper:10.1016/j.jallcom.2010.03.042:(αNd)  
_tdb: _tdb:BiNd-10Wan.tdb:DHCP, tdb:BiNd-22Im.tdb:DHCP  


### TDB models of DHCP (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): DHCP, type code %A, sha256 `b10b8cb0c572dee3…`

~~~~text
45: PHASE DHCP %A 2 1 0.5 !
46: CONST DHCP : BI ND% : VA% : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): DHCP, type code %A, sha256 `9860ba3a27df60f3…`

~~~~text
46: PHASE DHCP %A 2 1 0.5 !
47: CONST DHCP : BI ND% : VA% : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_

## FCC_A1 (Bi–Nd)

- Id: `phase:bi-nd:fcc-a1`; status `assigned`
- Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high
- Stability: not stable in 2 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:fcc-a1)

Names (3): _corpus: _corpus:phase:bi-nd:fcc-a1  
_tdb: _tdb:BiNd-10Wan.tdb:FCC_A1, tdb:BiNd-22Im.tdb:FCC_A1  


### TDB models of FCC_A1 (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): FCC_A1, type code %A, sha256 `b10b8cb0c572dee3…`

~~~~text
30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : BI ND : VA : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): FCC_A1, type code %A, sha256 `9860ba3a27df60f3…`

~~~~text
31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : BI ND : VA : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase_

## HCP_A3 (Bi–Nd)

- Id: `phase:bi-nd: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: not stable in 2 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:hcp-a3)

Names (3): _corpus: _corpus:phase:bi-nd:hcp-a3  
_tdb: _tdb:BiNd-10Wan.tdb:HCP_A3, tdb:BiNd-22Im.tdb:HCP_A3  


### TDB models of HCP_A3 (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): HCP_A3, type code %A, sha256 `b10b8cb0c572dee3…`

~~~~text
40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 : BI ND : VA: !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): HCP_A3, type code %A, sha256 `9860ba3a27df60f3…`

~~~~text
41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : BI ND : VA: !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase_

## LIQUID (Bi–Nd)

- Id: `phase:bi-nd:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 2 of 2 calculated diagram(s): 544.45–2500 K, x(Nd) 0–1
- Literature: 15 values (15 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:bi-nd:liquid)

Names (4): _corpus: _corpus:phase:bi-nd:liquid  
_paper: _paper:10.1016/j.jallcom.2010.03.042:L  
_tdb: _tdb:BiNd-10Wan.tdb:LIQUID, tdb:BiNd-22Im.tdb:LIQUID  


### TDB models of LIQUID (2): PHASE and CONSTITUENT statements as written

[BiNd-10Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-10Wan.tdb): LIQUID, type code %, sha256 `b10b8cb0c572dee3…`

~~~~text
25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : BI ND : !
~~~~

[BiNd-22Im.tdb](https://orchid-project.org/data/databases/sgte-binary/BiNd-22Im.tdb): LIQUID, type code %, sha256 `9860ba3a27df60f3…`

~~~~text
26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : BI ND : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.jallcom.2010.03.042](https://doi.org/10.1016/j.jallcom.2010.03.042) C.P. Wang, H.L. Zhang, A.T. Tang, F.S. Pan, X.J. Liu, Thermodynamic assessments of the Bi–Nd and Bi–Tm systems, Journal of Alloys and Compounds 502, 43-48 (2010).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.actamat.2021.117448](https://doi.org/10.1016/j.actamat.2021.117448) Sanghyeok Im, Shun-Li Shang, Nathan D. Smith, Adam M. Krajewski, Timothy Lichtenstein, Hui Sun et al., Thermodynamic properties of the Nd-Bi system via emf measurements, DFT calculations, machine learning, and CALPHAD modeling, Acta Materialia 223, 117448 (2022).  
_assessment that models 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).
