Ni–Sm phases

15 phases (tier A 9, tier C 2, liquid 1, needs_review 3); 14 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 · full JSON · Ni–Sm system page · Markdown · field reference

Phases of the Ni–Sm system (15)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:ni-sm:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1195.01–2500 K, x(Sm) 0.99992–1	0	2
FCC_A1 phase:ni-sm:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1747.12 K, x(Sm) 0–0	5	2
HCP_A3 phase:ni-sm:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 995.14–1195.06 K, x(Sm) 0.99988–1	4	2
LIQUID phase:ni-sm:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 844.79–2500 K, x(Sm) 0–1	62	2
NI17SM2 phase:ni-sm:ni17sm2	Ni17Th2 · hP38 · P6_3/mmc (194)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1564.56 K, x(Sm) 0.10526–0.10526	10	2
NI19SM5 phase:ni-sm:ni19sm5		needs_review	stable in 2 of 2 calculated diagram(s): 300–1555.91 K, x(Sm) 0.20833–0.20833	10	2
NI2SM_C15 phase:ni-sm:ni2sm-c15	Cu2Mg · C15 · cF24 · Fd-3m (227)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1301.37 K, x(Sm) 0.33333–0.33333	10	2
NI2SM3 phase:ni-sm:ni2sm3		needs_review	stable in 1 of 1 calculated diagram(s): 872.7–904.58 K, x(Sm) 0.6–0.6	8	1
NI3SM phase:ni-sm:ni3sm	Ni3Pu · hR12 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1408.94 K, x(Sm) 0.25–0.25	11	2
NI3SM7_D102 phase:ni-sm:ni3sm7-d102	Fe3Th7 · D10_2 · hP20 · P6_3mc (186)	tier A: standard phase name	not stable in 1 calculated diagram(s)	6	1
NI5SM_D2D phase:ni-sm:ni5sm-d2d	CaCu5 · D2_d · hP6 · P6/mmm (191)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1749.26 K, x(Sm) 0.16667–0.16667	16	2
NI7SM2 phase:ni-sm:ni7sm2		needs_review	stable in 1 of 2 calculated diagram(s): 300–1493.3 K, x(Sm) 0.22222–0.22222	10	2
NISM_B33 phase:ni-sm:nism-b33	CrB · B33 · oC8 · Cmcm (63)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1349.44 K, x(Sm) 0.5–0.5	16	2
NISM3_D011 phase:ni-sm:nism3-d011	Fe3C · D0_11 · oP16 · Pnma (62)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–953.73 K, x(Sm) 0.75–0.75	16	2
RHOMB_C19 phase:ni-sm:rhomb-c19	CdCl2 · C19 · hR3 · R-3m (166)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1191.87 K, x(Sm) 1–1	2	2

BCC_A2 (Ni–Sm)

Id: phase:ni-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): 1195.01–2500 K, x(Sm) 0.99992–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ni-sm:bcc-a2
tdb: tdb:NiSm-16Rah.tdb:BCC_A2, tdb:NiSm-98Su.tdb:BCC_A2

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

NiSm-16Rah.tdb: BCC_A2, type code %B, sha256 b2c17f14c2f7462c…

40: PHASE BCC_A2 %B 2 1 3 !
41: CONST BCC_A2 : NI SM% : VA : !

NiSm-98Su.tdb: BCC_A2, type code %B, sha256 159dfa627118a14c…

37: PHASE BCC_A2 %B 2 1 3 !
38: CONST BCC_A2 : NI SM% : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase

FCC_A1 (Ni–Sm)

Id: phase:ni-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: Ni 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–1747.12 K, x(Sm) 0–0
Literature: 5 values (5 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ni-sm:fcc-a1
paper: paper:10.1016/j.jallcom.2015.12.215:Fcc, paper:10.1016/s0925-8388(98)00560-x:α-Ni(fcc)
tdb: tdb:NiSm-16Rah.tdb:FCC_A1, tdb:NiSm-98Su.tdb:FCC_A1

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

NiSm-16Rah.tdb: FCC_A1, type code %A, sha256 b2c17f14c2f7462c…

35: PHASE FCC_A1 %A 2 1 1 !
36: CONST FCC_A1 : NI : VA : !

NiSm-98Su.tdb: FCC_A1, type code %A, sha256 159dfa627118a14c…

32: PHASE FCC_A1 %A 2 1 1 !
33: CONST FCC_A1 : NI : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase

HCP_A3 (Ni–Sm)

Id: phase:ni-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): 995.14–1195.06 K, x(Sm) 0.99988–1
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ni-sm:hcp-a3
paper: paper:10.1016/j.jallcom.2015.12.215:β-Sm
tdb: tdb:NiSm-16Rah.tdb:HCP_A3, tdb:NiSm-98Su.tdb:HCP_A3

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

NiSm-16Rah.tdb: HCP_A3, type code %, sha256 b2c17f14c2f7462c…

45: PHASE HCP_A3 % 2 1 0.5 !
46: CONST HCP_A3 : NI SM% : VA : !

NiSm-98Su.tdb: HCP_A3, type code %, sha256 159dfa627118a14c…

42: PHASE HCP_A3 % 2 1 0.5 !
43: CONST HCP_A3 : NI SM% : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase
doi:10.1007/s00706-012-0794-5 Gabriella Borzone, Yuan Yuan, Simona Delsante, Nadia Parodi, The Sm–Ni system: new phases in the Sm-rich region, Monatsh Chem 143, 1299-1307 (2012).
cited as the source of values for this phase

LIQUID (Ni–Sm)

Id: phase:ni-sm:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 844.79–2500 K, x(Sm) 0–1
Literature: 62 values (56 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ni-sm:liquid
paper: paper:10.1016/j.jallcom.2015.12.215:L, paper:10.1016/s0925-8388(98)00560-x:L
tdb: tdb:NiSm-16Rah.tdb:LIQUID, tdb:NiSm-98Su.tdb:LIQUID

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

NiSm-16Rah.tdb: LIQUID, type code %, sha256 b2c17f14c2f7462c…

30: PHASE LIQUID:L % 1 1 !
31: CONST LIQUID:L : NI SM : !

NiSm-98Su.tdb: LIQUID, type code %, sha256 159dfa627118a14c…

27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : NI SM : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1007/s00706-012-0794-5 Gabriella Borzone, Yuan Yuan, Simona Delsante, Nadia Parodi, The Sm–Ni system: new phases in the Sm-rich region, Monatsh Chem 143, 1299-1307 (2012).
cited as the source of values for this phase

NI17SM2 (Ni–Sm)

Id: phase:ni-sm:ni17sm2; status assigned
Structure: Ni17Th2 · hP38 · P6_3/mmc (194); type st:ni17th2-hp38; 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
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 0.8947, Sm 0.1053
Stability: stable in 2 of 2 calculated diagram(s): 300–1564.56 K, x(Sm) 0.10526–0.10526
Literature: 10 values (10 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ni-sm:ni17sm2
paper: paper:10.1016/j.jallcom.2015.12.215:Sm2Ni17, paper:10.1016/s0925-8388(98)00560-x:Ni17Sm2
tdb: tdb:NiSm-16Rah.tdb:NI17SM2, tdb:NiSm-98Su.tdb:NI17SM2

TDB models of NI17SM2 (2): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NI17SM2, type code %, sha256 b2c17f14c2f7462c…

55: PHASE NI17SM2 % 2 17 2 !
56: CONST NI17SM2 : NI : SM : !

NiSm-98Su.tdb: NI17SM2, type code %, sha256 159dfa627118a14c…

52: PHASE NI17SM2 % 2 17 2 !
53: CONST NI17SM2 : NI : SM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase

NI19SM5 (Ni–Sm)

Id: phase:ni-sm:ni19sm5; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_rows_disagree
Candidate (literature_printed): (Ni19Sm5) · hR72 — printed with a label mapped to this phase
Candidate (sgte_mmc2): (Ni19Sm5) · hP96 · P6_3/mmc (194) — Hallstedt 2025 mmc2 row for NI19SM5: Ni19Sm5
Candidate (sgte_mmc2): (Ni19Sm5) · hR72 · R-3m (166) — Hallstedt 2025 mmc2 row for NI19SM5: Ni19Sm5
Stoichiometry: Ni 0.7917, Sm 0.2083
Stability: stable in 2 of 2 calculated diagram(s): 300–1555.91 K, x(Sm) 0.20833–0.20833
Literature: 10 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ni-sm:ni19sm5
paper: paper:10.1016/j.jallcom.2015.12.215:Sm5Ni19, paper:10.1016/s0925-8388(98)00560-x:Ni19Sm5
tdb: tdb:NiSm-16Rah.tdb:NI19SM5, tdb:NiSm-98Su.tdb:NI19SM5

TDB models of NI19SM5 (2): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NI19SM5, type code %, sha256 b2c17f14c2f7462c…

65: PHASE NI19SM5 % 2 19 5 !
66: CONST NI19SM5 : NI : SM : !

NiSm-98Su.tdb: NI19SM5, type code %, sha256 159dfa627118a14c…

62: PHASE NI19SM5 % 2 19 5 !
63: CONST NI19SM5 : NI : SM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase

NI2SM_C15 (Ni–Sm)

Id: phase:ni-sm:ni2sm-c15; status assigned
Structure: Cu2Mg · C15 · cF24 · Fd-3m (227); type st:c15-cu2mg-cf24; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaacby and oqmd-17805, space group 227
Stoichiometry: Ni 0.6667, Sm 0.3333
Stability: stable in 2 of 2 calculated diagram(s): 300–1301.37 K, x(Sm) 0.33333–0.33333
Literature: 10 values (10 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sm:ni2sm-c15
mp: mp:mp-aaaaacby
oqmd: oqmd:oqmd-17805
paper: paper:10.1016/j.jallcom.2015.12.215:SmNi2, paper:10.1016/s0925-8388(98)00560-x:Ni2Sm
tdb: tdb:NiSm-16Rah.tdb:NI2SM_C15, tdb:NiSm-98Su.tdb:NI2SM_C15

TDB models of NI2SM_C15 (2): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NI2SM_C15, type code %, sha256 b2c17f14c2f7462c…

80: PHASE NI2SM_C15 % 2 2 1 !
81: CONST NI2SM_C15 : NI : SM : !

NiSm-98Su.tdb: NI2SM_C15, type code %, sha256 159dfa627118a14c…

77: PHASE NI2SM_C15 % 2 2 1 !
78: CONST NI2SM_C15 : NI : SM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase

NI2SM3 (Ni–Sm)

Id: phase:ni-sm:ni2sm3; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (literature_printed): (Ni2Sm3) · ? — printed with a label mapped to this phase
Candidate (sgte_mmc2): (Ni2Sm3) — Hallstedt 2025 mmc2 row for NI2SM3: Ni2Sm3
Stoichiometry: Ni 0.4000, Sm 0.6000
Stability: stable in 1 of 1 calculated diagram(s): 872.7–904.58 K, x(Sm) 0.6–0.6
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ni-sm:ni2sm3
paper: paper:10.1016/j.jallcom.2015.12.215:Sm3Ni2
tdb: tdb:NiSm-16Rah.tdb:NI2SM3

TDB models of NI2SM3 (1): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NI2SM3, type code %, sha256 b2c17f14c2f7462c…

90: PHASE NI2SM3 % 2 2 3 !
91: CONST NI2SM3 : NI : SM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s00706-012-0794-5 Gabriella Borzone, Yuan Yuan, Simona Delsante, Nadia Parodi, The Sm–Ni system: new phases in the Sm-rich region, Monatsh Chem 143, 1299-1307 (2012).
cited as the source of values for this phase

NI3SM (Ni–Sm)

Id: phase:ni-sm:ni3sm; status assigned
Structure: Ni3Pu · hR12 · R-3m (166); type st:ni3pu-hr12; 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
Caveat: not certain from the name or DFT alone (dft_space_group_166_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ni 0.7500, Sm 0.2500
Stability: stable in 2 of 2 calculated diagram(s): 300–1408.94 K, x(Sm) 0.25–0.25
Literature: 11 values (8 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ni-sm:ni3sm
paper: paper:10.1016/j.jallcom.2015.12.215:SmNi3, paper:10.1016/s0925-8388(98)00560-x:Ni3Sm
tdb: tdb:NiSm-16Rah.tdb:NI3SM, tdb:NiSm-98Su.tdb:NI3SM

TDB models of NI3SM (2): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NI3SM, type code %, sha256 b2c17f14c2f7462c…

75: PHASE NI3SM % 2 3 1 !
76: CONST NI3SM : NI : SM : !

NiSm-98Su.tdb: NI3SM, type code %, sha256 159dfa627118a14c…

72: PHASE NI3SM % 2 3 1 !
73: CONST NI3SM : NI : SM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase

NI3SM7_D102 (Ni–Sm)

Id: phase:ni-sm:ni3sm7-d102; status assigned
Structure: Fe3Th7 · D10_2 · hP20 · P6_3mc (186); type st:d10-2-fe3th7-hp20; tier A: standard phase name; confidence high
Stoichiometry: Ni 0.3000, Sm 0.7000
Stability: not stable in 1 calculated diagram(s)
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ni-sm:ni3sm7-d102
paper: paper:10.1016/j.jallcom.2015.12.215:Sm7Ni3
tdb: tdb:NiSm-16Rah.tdb:NI3SM7_D102

TDB models of NI3SM7_D102 (1): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NI3SM7_D102, type code %, sha256 b2c17f14c2f7462c…

95: PHASE NI3SM7_D102 % 2 3 7 !
96: CONST NI3SM7_D102 : NI : SM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s00706-012-0794-5 Gabriella Borzone, Yuan Yuan, Simona Delsante, Nadia Parodi, The Sm–Ni system: new phases in the Sm-rich region, Monatsh Chem 143, 1299-1307 (2012).
cited as the source of values for this phase

NI5SM_D2D (Ni–Sm)

Id: phase:ni-sm:ni5sm-d2d; status assigned
Structure: CaCu5 · D2_d · hP6 · P6/mmm (191); type st:d2-d-cacu5-hp6; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaabpj and oqmd-17806, space group 191
Stoichiometry: Ni 0.8333, Sm 0.1667
Stability: stable in 2 of 2 calculated diagram(s): 300–1749.26 K, x(Sm) 0.16667–0.16667
Literature: 16 values (13 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sm:ni5sm-d2d
mp: mp:mp-aaaaabpj
oqmd: oqmd:oqmd-17806
paper: paper:10.1016/j.jallcom.2015.12.215:SmNi5, paper:10.1016/s0925-8388(98)00560-x:Ni5Sm
tdb: tdb:NiSm-16Rah.tdb:NI5SM_D2D, tdb:NiSm-98Su.tdb:NI5SM_D2D

TDB models of NI5SM_D2D (2): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NI5SM_D2D, type code %, sha256 b2c17f14c2f7462c…

60: PHASE NI5SM_D2D % 2 5 1 !
61: CONST NI5SM_D2D : NI : SM : !

NiSm-98Su.tdb: NI5SM_D2D, type code %, sha256 159dfa627118a14c…

57: PHASE NI5SM_D2D % 2 5 1 !
58: CONST NI5SM_D2D : NI : SM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase

NI7SM2 (Ni–Sm)

Id: phase:ni-sm:ni7sm2; status needs_review
No structure assigned. Why: mp_oqmd_space_groups_differ; no_structure_token; sgte_mmc2_rows_disagree
Candidate (dft_mp): R-3m (166) — on-hull MP Sm2Ni7 at x(SM)=0.2222
Candidate (dft_oqmd): P63/mmc (194) — on-hull OQMD Ni7 Sm2 at x(SM)=0.2222
Candidate (literature_printed): Ce2Ni7 · hP36 — printed with a label mapped to this phase
Candidate (sgte_mmc2): Ce2Ni7 · hP36 · P6_3/mmc (194) — Hallstedt 2025 mmc2 row for NI7SM2: Ni7Sm2 (high T), see also Co7Gd2
Candidate (sgte_mmc2): Co7Gd2 · hR18 · R-3m (166) — Hallstedt 2025 mmc2 row for NI7SM2: Ni7Sm2 (low T), see also Ce2Ni7
Candidate (tdb_comment): Co7Gd2 · hR18 · R-3m, low T — NiSm-16Rah.tdb: 'Prototype Co7Gd2 (hR18, R-3m, low T) and Ce2Ni7 (hP36, P6_3/mmc, high T)'
Candidate (tdb_comment): Co7Gd2 · hR18 · R-3m, low T — NiSm-98Su.tdb: 'Prototype Co7Gd2 (hR18, R-3m, low T) and Ce2Ni7 (hP36, P6_3/mmc, high T)'
Stoichiometry: Ni 0.7778, Sm 0.2222
Stability: stable in 1 of 2 calculated diagram(s): 300–1493.3 K, x(Sm) 0.22222–0.22222
Literature: 10 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ni-sm:ni7sm2
paper: paper:10.1016/j.jallcom.2015.12.215:Sm2Ni7, paper:10.1016/s0925-8388(98)00560-x:Ni7Sm2
tdb: tdb:NiSm-16Rah.tdb:NI7SM2, tdb:NiSm-98Su.tdb:NI7SM2

TDB models of NI7SM2 (2): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NI7SM2, type code %, sha256 b2c17f14c2f7462c…

70: PHASE NI7SM2 % 2 7 2 !
71: CONST NI7SM2 : NI : SM : !

NiSm-98Su.tdb: NI7SM2, type code %, sha256 159dfa627118a14c…

67: PHASE NI7SM2 % 2 7 2 !
68: CONST NI7SM2 : NI : SM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase

NISM_B33 (Ni–Sm)

Id: phase:ni-sm:nism-b33; status assigned
Structure: CrB · B33 · oC8 · Cmcm (63); type st:b33-crb-oc8; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaacewar and oqmd-30859, space group 63
Stoichiometry: Ni 0.5000, Sm 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–1349.44 K, x(Sm) 0.5–0.5
Literature: 16 values (16 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sm:nism-b33
mp: mp:mp-aaacewar
oqmd: oqmd:oqmd-30859
paper: paper:10.1016/j.jallcom.2015.12.215:SmNi, paper:10.1016/s0925-8388(98)00560-x:NiSm
tdb: tdb:NiSm-16Rah.tdb:NISM_B33, tdb:NiSm-98Su.tdb:NISM_B33

TDB models of NISM_B33 (2): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NISM_B33, type code %, sha256 b2c17f14c2f7462c…

85: PHASE NISM_B33 % 2 1 1 !
86: CONST NISM_B33 : NI : SM : !

NiSm-98Su.tdb: NISM_B33, type code %, sha256 159dfa627118a14c…

82: PHASE NISM_B33 % 2 1 1 !
83: CONST NISM_B33 : NI : SM : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1007/s00706-012-0794-5 Gabriella Borzone, Yuan Yuan, Simona Delsante, Nadia Parodi, The Sm–Ni system: new phases in the Sm-rich region, Monatsh Chem 143, 1299-1307 (2012).
cited as the source of values for this phase

NISM3_D011 (Ni–Sm)

Id: phase:ni-sm:nism3-d011; status assigned
Structure: Fe3C · D0_11 · oP16 · Pnma (62); type st:d0-11-fe3c-op16; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaackyaj and oqmd-30857, space group 62
Stoichiometry: Ni 0.2500, Sm 0.7500
Stability: stable in 2 of 2 calculated diagram(s): 300–953.73 K, x(Sm) 0.75–0.75
Literature: 16 values (16 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sm:nism3-d011
mp: mp:mp-aaackyaj
oqmd: oqmd:oqmd-30857
paper: paper:10.1016/j.jallcom.2015.12.215:Sm3Ni, paper:10.1016/s0925-8388(98)00560-x:NiSm3
tdb: tdb:NiSm-16Rah.tdb:NISM3_D011, tdb:NiSm-98Su.tdb:NISM3_D011

TDB models of NISM3_D011 (2): PHASE and CONSTITUENT statements as written

NiSm-16Rah.tdb: NISM3_D011, type code %, sha256 b2c17f14c2f7462c…

100: PHASE NISM3_D011 % 2 1 3 !
101: CONST NISM3_D011 : NI : SM : !

NiSm-98Su.tdb: NISM3_D011, type code %, sha256 159dfa627118a14c…

87: PHASE NISM3_D011 % 2 1 3 !
88: CONST NISM3_D011 : NI : SM : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1007/s00706-012-0794-5 Gabriella Borzone, Yuan Yuan, Simona Delsante, Nadia Parodi, The Sm–Ni system: new phases in the Sm-rich region, Monatsh Chem 143, 1299-1307 (2012).
cited as the source of values for this phase

RHOMB_C19 (Ni–Sm)

Id: phase:ni-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): 300–1191.87 K, x(Sm) 1–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ni-sm:rhomb-c19
paper: paper:10.1016/s0925-8388(98)00560-x:α-Sm(rhom)
tdb: tdb:NiSm-16Rah.tdb:RHOMB_C19, tdb:NiSm-98Su.tdb:RHOMB_C19

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

NiSm-16Rah.tdb: RHOMB_C19, type code %, sha256 b2c17f14c2f7462c…

50: PHASE RHOMB_C19 % 1 1 !
51: CONST RHOMB_C19 : SM : !

NiSm-98Su.tdb: RHOMB_C19, type code %, sha256 159dfa627118a14c…

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

Example references (2 of 2; assessments first):

doi:10.1016/S0925-8388(98)00560-X X. Su, W. Zhang, Z. Du, J. Alloys Compd., 278, 182-84(1998).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.12.215 Z. Rahou, K. Mahdouk, Thermodynamic reassessment of the Sm–Ni binary system, Journal of Alloys and Compounds 664, 469-475 (2016).
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). doi: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). doi: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.

@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}
}