# Sb–Sm phases

> Sb–Sm system: 12 phases (tier A 8, tier C 2, liquid 1, needs_review 1); 11 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/SB-SM.html · Markdown: https://data.orchid-project.org/phases/pages/SB-SM.md

12 phases (tier A 8, tier C 2, liquid 1, needs_review 1); 11 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=SB-SM) · [full JSON](https://data.orchid-project.org/phases/systems/SB-SM.json) · [Sb–Sm system page](https://data.orchid-project.org/systems/SB-SM.html) · [Markdown](https://data.orchid-project.org/phases/pages/SB-SM.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Sb–Sm system (12)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [RHOMBOHEDRAL_A7](#phase-sb-sm-a7-rhombohedral); _phase:sb-sm:a7-rhombohedral_ | alpha-As · A7 · hR2 · R-3m (166) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–910.18 K, x(Sm) 0–0 | 3 | 2 |
| [BCC_A2](#phase-sb-sm-bcc-a2); _phase:sb-sm:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 1150.15–2500 K, x(Sm) 0.98723–1 | 5 | 2 |
| [FCC_A1](#phase-sb-sm-fcc-a1); _phase:sb-sm: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-sb-sm-hcp-a3); _phase:sb-sm:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 1006.99–1340 K, x(Sm) 1–1 | 2 | 2 |
| [LIQUID](#phase-sb-sm-liquid); _phase:sb-sm:liquid_ | liquid | liquid | stable in 2 of 2 calculated diagram(s): 875.18–2500 K, x(Sm) 0–1 | 18 | 2 |
| [RHOMB_C19](#phase-sb-sm-rhomb-c19); _phase:sb-sm:rhomb-c19_ | CdCl2 · C19 · hR3 · R-3m (166) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1191.99 K, x(Sm) 1–1 | 0 | 2 |
| [SB2SM](#phase-sb-sm-sb2sm); _phase:sb-sm:sb2sm_ | Sb2Sm · oC24 · Cmce (64) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–1645.56 K, x(Sm) 0.33333–0.33333 | 6 | 2 |
| [SB3SM4_D73](#phase-sb-sm-sb3sm4-d73); _phase:sb-sm:sb3sm4-d73_ | Th3P4 · D7_3 · cI28 · I-43d (220) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–2062.7 K, x(Sm) 0.57143–0.57143 | 8 | 2 |
| [SB3SM5_HT](#phase-sb-sm-sb3sm5); _phase:sb-sm:sb3sm5_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–1293.33 K, x(Sm) 0.625–0.625 | 5 | 1 |
| [SB3SM5_D88](#phase-sb-sm-sb3sm5-d88); _phase:sb-sm:sb3sm5-d88_ | Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–2003.33 K, x(Sm) 0.625–0.625 | 7 | 2 |
| [SBSM_B1](#phase-sb-sm-sbsm-b1); _phase:sb-sm:sbsm-b1_ | NaCl · B1 · cF8 · Fm-3m (225) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–2200.92 K, x(Sm) 0.5–0.5 | 9 | 2 |
| [SBSM2](#phase-sb-sm-sbsm2); _phase:sb-sm:sbsm2_ | La2Sb · tI12 · I4/mmm (139) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1600.63 K, x(Sm) 0.66667–0.66667 | 0 | 1 |

## RHOMBOHEDRAL_A7 (Sb–Sm)

- Id: `phase:sb-sm: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
- Stoichiometry: Sb 1.0000
- Stability: stable in 2 of 2 calculated diagram(s): 300–910.18 K, x(Sm) 0–0
- Literature: 3 values (3 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:a7-rhombohedral)

Names (5): _corpus: _corpus:phase:sb-sm:a7-rhombohedral, corpus:phase:sb-sm:rhombohedral-a7  
_paper: _paper:10.1016/j.calphad.2014.07.002:(Sb)  
_tdb: _tdb:SbSm-14Liu.tdb:RHOMBOHEDRAL_A7, tdb:SbSm-96Cac.tdb:RHOMBOHEDRAL_A7  


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

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `7316b4d1e5af1aa8…`

~~~~text
48: PHASE RHOMBOHEDRAL_A7 % 1 1 !
49: CONST RHOMBOHEDRAL_A7 : SB : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): RHOMBOHEDRAL_A7, type code %, sha256 `eb704a9b7603a516…`

~~~~text
42: PHASE RHOMBOHEDRAL_A7 % 1 1 !
43: CONST RHOMBOHEDRAL_A7 : SB : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## BCC_A2 (Sb–Sm)

- Id: `phase:sb-sm: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): 1150.15–2500 K, x(Sm) 0.98723–1
- Literature: 5 values (5 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:bcc-a2)

Names (4): _corpus: _corpus:phase:sb-sm:bcc-a2  
_paper: _paper:10.1016/j.calphad.2014.07.002:(γSm)  
_tdb: _tdb:SbSm-14Liu.tdb:BCC_A2, tdb:SbSm-96Cac.tdb:BCC_A2  


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

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): BCC_A2, type code %B, sha256 `7316b4d1e5af1aa8…`

~~~~text
38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : SB SM : VA : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): BCC_A2, type code %B, sha256 `eb704a9b7603a516…`

~~~~text
32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : SB SM : VA : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## FCC_A1 (Sb–Sm)

- Id: `phase:sb-sm:fcc-a1`; status `assigned`
- Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high
- Stoichiometry: Sb 1.0000
- 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:sb-sm:fcc-a1)

Names (3): _corpus: _corpus:phase:sb-sm:fcc-a1  
_tdb: _tdb:SbSm-14Liu.tdb:FCC_A1, tdb:SbSm-96Cac.tdb:FCC_A1  


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

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): FCC_A1, type code %A, sha256 `7316b4d1e5af1aa8…`

~~~~text
33: PHASE FCC_A1 %A 2 1 1 !
34: CONST FCC_A1 : SB : VA : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): FCC_A1, type code %A, sha256 `eb704a9b7603a516…`

~~~~text
27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : SB : VA : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_

## HCP_A3 (Sb–Sm)

- Id: `phase:sb-sm: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 2 of 2 calculated diagram(s): 1006.99–1340 K, x(Sm) 1–1
- Literature: 2 values (2 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:hcp-a3)

Names (4): _corpus: _corpus:phase:sb-sm:hcp-a3  
_paper: _paper:10.1016/j.calphad.2014.07.002:(βSm)  
_tdb: _tdb:SbSm-14Liu.tdb:HCP_A3, tdb:SbSm-96Cac.tdb:HCP_A3  


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

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): HCP_A3, type code %A, sha256 `7316b4d1e5af1aa8…`

~~~~text
43: PHASE HCP_A3 %A 2 1 0.5 !
44: CONST HCP_A3 : SB SM : VA : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): HCP_A3, type code %A, sha256 `eb704a9b7603a516…`

~~~~text
37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : SB SM : VA : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## LIQUID (Sb–Sm)

- Id: `phase:sb-sm:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 2 of 2 calculated diagram(s): 875.18–2500 K, x(Sm) 0–1
- Literature: 18 values (18 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:liquid)

Names (4): _corpus: _corpus:phase:sb-sm:liquid  
_paper: _paper:10.1016/j.calphad.2014.07.002:L  
_tdb: _tdb:SbSm-14Liu.tdb:LIQUID, tdb:SbSm-96Cac.tdb:LIQUID  


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

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): LIQUID, type code %, sha256 `7316b4d1e5af1aa8…`

~~~~text
28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : SB SM : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): LIQUID, type code %, sha256 `eb704a9b7603a516…`

~~~~text
22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : SB SM : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## RHOMB_C19 (Sb–Sm)

- Id: `phase:sb-sm:rhomb-c19`; status `assigned`
- Structure: CdCl2 · C19 · hR3 · R-3m (166); type `st:c19-cdcl2-hr3`; tier A: standard phase name; confidence high
- Stoichiometry: Sm 1.0000
- Stability: stable in 2 of 2 calculated diagram(s): 300–1191.99 K, x(Sm) 1–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:rhomb-c19)

Names (3): _corpus: _corpus:phase:sb-sm:rhomb-c19  
_tdb: _tdb:SbSm-14Liu.tdb:RHOMB_C19, tdb:SbSm-96Cac.tdb:RHOMB_C19  


### TDB models of RHOMB_C19 (2): PHASE and CONSTITUENT statements as written

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): RHOMB_C19, type code %, sha256 `7316b4d1e5af1aa8…`

~~~~text
53: PHASE RHOMB_C19 % 1 1 !
54: CONST RHOMB_C19 : SM : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): RHOMB_C19, type code %, sha256 `eb704a9b7603a516…`

~~~~text
47: PHASE RHOMB_C19 % 1 1 !
48: CONST RHOMB_C19 : SM : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_

## SB2SM (Sb–Sm)

- Id: `phase:sb-sm:sb2sm`; 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: Sb 0.6667, Sm 0.3333
- Stability: stable in 2 of 2 calculated diagram(s): 300–1645.56 K, x(Sm) 0.33333–0.33333
- Literature: 6 values (6 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:sb2sm)

Names (4): _corpus: _corpus:phase:sb-sm:sb2sm  
_paper: _paper:10.1016/j.calphad.2014.07.002:Sb2Sm  
_tdb: _tdb:SbSm-14Liu.tdb:SB2SM, tdb:SbSm-96Cac.tdb:SB2SM  


### TDB models of SB2SM (2): PHASE and CONSTITUENT statements as written

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): SB2SM, type code %, sha256 `7316b4d1e5af1aa8…`

~~~~text
58: PHASE SB2SM % 2 2 1 !
59: CONST SB2SM : SB : SM : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): SB2SM, type code %, sha256 `eb704a9b7603a516…`

~~~~text
52: PHASE SB2SM % 2 2 1 !
53: CONST SB2SM : SB : SM : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## SB3SM4_D73 (Sb–Sm)

- Id: `phase:sb-sm:sb3sm4-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: Sb 0.4286, Sm 0.5714
- Stability: stable in 2 of 2 calculated diagram(s): 300–2062.7 K, x(Sm) 0.57143–0.57143
- Literature: 8 values (8 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:sb3sm4-d73)

Names (4): _corpus: _corpus:phase:sb-sm:sb3sm4-d73  
_paper: _paper:10.1016/j.calphad.2014.07.002:Sb3Sm4  
_tdb: _tdb:SbSm-14Liu.tdb:SB3SM4_D73, tdb:SbSm-96Cac.tdb:SB3SM4_D73  


### TDB models of SB3SM4_D73 (2): PHASE and CONSTITUENT statements as written

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): SB3SM4_D73, type code %, sha256 `7316b4d1e5af1aa8…`

~~~~text
68: PHASE SB3SM4_D73 % 2 3 4 !
69: CONST SB3SM4_D73 : SB : SM : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): SB3SM4_D73, type code %, sha256 `eb704a9b7603a516…`

~~~~text
62: PHASE SB3SM4_D73 % 2 3 4 !
63: CONST SB3SM4_D73 : SB : SM : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## SB3SM5_HT (Sb–Sm)

- Id: `phase:sb-sm:sb3sm5`; status `needs_review`
- No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition; sgte_mmc2_row_incomplete
- Candidate (dft_mp): P6_3/mcm (193) — on-hull MP Sm5Sb3 at x(SM)=0.6250
- Candidate (dft_oqmd): P63/mcm (193) — on-hull OQMD Sb3 Sm5 at x(SM)=0.6250
- Candidate (literature_printed): (Sb3Sm5-ht) · ? — printed with a label mapped to this phase
- Candidate (sgte_mmc2): (Sb3Sm5-ht) — Hallstedt 2025 mmc2 row for SB3SM5_HT: Sb3Sm5
- Stoichiometry: Sb 0.3750, Sm 0.6250
- Stability: stable in 1 of 1 calculated diagram(s): 300–1293.33 K, x(Sm) 0.625–0.625
- Literature: 5 values (5 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:sb3sm5)

Names (4): _corpus: _corpus:phase:sb-sm:sb3sm5, corpus:phase:sb-sm:sb3sm5-ht  
_paper: _paper:10.1016/j.calphad.2014.07.002:βSb3Sm5  
_tdb: _tdb:SbSm-14Liu.tdb:SB3SM5_HT  


### TDB models of SB3SM5_HT (1): PHASE and CONSTITUENT statements as written

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): SB3SM5_HT, type code %, sha256 `7316b4d1e5af1aa8…`

~~~~text
78: PHASE SB3SM5_HT % 2 3 5 !
79: CONST SB3SM5_HT : SB : SM : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## SB3SM5_D88 (Sb–Sm)

- Id: `phase:sb-sm:sb3sm5-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
- Stoichiometry: Sb 0.3750, Sm 0.6250
- Stability: stable in 2 of 2 calculated diagram(s): 300–2003.33 K, x(Sm) 0.625–0.625
- Literature: 7 values (7 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:sb3sm5-d88)

Names (5): _corpus: _corpus:phase:sb-sm:sb3sm5-d88  
_paper: _paper:10.1016/j.calphad.2014.07.002:Sb3Sm5, paper:10.1016/j.calphad.2014.07.002:αSb3Sm5  
_tdb: _tdb:SbSm-14Liu.tdb:SB3SM5_D88, tdb:SbSm-96Cac.tdb:SB3SM5_D88  


### TDB models of SB3SM5_D88 (2): PHASE and CONSTITUENT statements as written

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): SB3SM5_D88, type code %, sha256 `7316b4d1e5af1aa8…`

~~~~text
73: PHASE SB3SM5_D88 % 2 3 5 !
74: CONST SB3SM5_D88 : SB : SM : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): SB3SM5_D88, type code %, sha256 `eb704a9b7603a516…`

~~~~text
67: PHASE SB3SM5_D88 % 2 3 5 !
68: CONST SB3SM5_D88 : SB : SM : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## SBSM_B1 (Sb–Sm)

- Id: `phase:sb-sm:sbsm-b1`; status `assigned`
- Structure: NaCl · B1 · cF8 · Fm-3m (225); type `st:b1-nacl-cf8`; tier A: standard phase name; confidence high
- Stoichiometry: Sb 0.5000, Sm 0.5000
- Stability: stable in 2 of 2 calculated diagram(s): 300–2200.92 K, x(Sm) 0.5–0.5
- Literature: 9 values (9 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:sbsm-b1)

Names (4): _corpus: _corpus:phase:sb-sm:sbsm-b1  
_paper: _paper:10.1016/j.calphad.2014.07.002:SbSm  
_tdb: _tdb:SbSm-14Liu.tdb:SBSM_B1, tdb:SbSm-96Cac.tdb:SBSM_B1  


### TDB models of SBSM_B1 (2): PHASE and CONSTITUENT statements as written

[SbSm-14Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-14Liu.tdb): SBSM_B1, type code %, sha256 `7316b4d1e5af1aa8…`

~~~~text
63: PHASE SBSM_B1 % 2 1 1 !
64: CONST SBSM_B1 : SB : SM : !
~~~~

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): SBSM_B1, type code %, sha256 `eb704a9b7603a516…`

~~~~text
57: PHASE SBSM_B1 % 2 1 1 !
58: CONST SBSM_B1 : SB : SM : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.calphad.2014.07.002](https://doi.org/10.1016/j.calphad.2014.07.002) X.J. Liu, M.H. Chen, Y. Lu, Y.X. Huang, D. Wang, Q. He et al., Thermodynamic assessment of the Sb–Sm and Sm–Sn systems, Calphad 47, 129-135 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_assessment that models this phase_
- [doi:10.1016/0022-5088(88)90149-x](https://doi.org/10.1016/0022-5088%2888%2990149-x) F.M. Sadigov, N.S. Shahguliyev, O.M. Aliyev, The samarium-antimony phase diagram, Journal of the Less Common Metals 144, L5-L8 (1988).  
_cited as the source of values for this phase_

## SBSM2 (Sb–Sm)

- Id: `phase:sb-sm:sbsm2`; 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: Sb 0.3333, Sm 0.6667
- Stability: stable in 1 of 1 calculated diagram(s): 300–1600.63 K, x(Sm) 0.66667–0.66667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sb-sm:sbsm2)

Names (2): _corpus: _corpus:phase:sb-sm:sbsm2  
_tdb: _tdb:SbSm-96Cac.tdb:SBSM2  


### TDB models of SBSM2 (1): PHASE and CONSTITUENT statements as written

[SbSm-96Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/SbSm-96Cac.tdb): SBSM2, type code %, sha256 `eb704a9b7603a516…`

~~~~text
72: PHASE SBSM2 % 2 1 2 !
73: CONST SBSM2 : SB : SM : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-1996-870708](https://doi.org/10.1515/ijmr-1996-870708) G. Cacciamani, G. Borzone, N. Parodi, R. Ferro, Z. Metallkd., 87, 562-67(1996).  
_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).