Mo–Ni phases

10 phases (tier A 3, tier C 5, liquid 1, needs_review 1); 9 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 · Mo–Ni system page · Markdown · field reference

Phases of the Mo–Ni system (10)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:mo-ni:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–2938.51 K, x(Ni) 0–0.02693	3	5
NI3X_II_D0A phase:mo-ni:d0a-ii-ni3x		needs_review	stable in 1 of 1 calculated diagram(s): 300–1192.88 K, x(Ni) 0.75–0.76382	0	1
NI3X_D0A phase:mo-ni:d0a-ni3x	beta-Cu3Ti · D0_a · oP8 · Pmmn (59)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 4 of 4 calculated diagram(s): 300–1200.81 K, x(Ni) 0.75–0.76223	9	4
NI4X_D1A phase:mo-ni:d1a-ni4x	MoNi4 · D1_a · tI10 · I4/m (87)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 4 of 4 calculated diagram(s): 300–1170 K, x(Ni) 0.8–0.8	5	4
FCC_A1 phase:mo-ni:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–1732.13 K, x(Ni) 0.71485–1	10	5
HCP_A3 phase:mo-ni:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 5 calculated diagram(s)	0	5
LIQUID phase:mo-ni:liquid	liquid	liquid	stable in 5 of 5 calculated diagram(s): 1577.29–4000 K, x(Ni) 0–1	4	5
MONI phase:mo-ni:moni	MoNi · oP56 · P2_12_12_1 (19)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 5 of 5 calculated diagram(s): 300–1668.27 K, x(Ni) 0.42874–0.53848	11	5
MONI2 phase:mo-ni:moni2	MoPt2 · oI6 · Immm (71)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1040 K, x(Ni) 0.66667–0.66667	4	1
NI8X phase:mo-ni:ni8x	Pt8Ti · tI18 · I4/mmm (139)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–557.03 K, x(Ni) 0.88889–0.88889	2	1

BCC_A2 (Mo–Ni)

Id: phase:mo-ni: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 5 of 5 calculated diagram(s): 300–2938.51 K, x(Ni) 0–0.02693
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mo-ni:bcc-a2
paper: paper:10.1016/j.msea.2005.02.037:bcc
tdb: tdb:MoNi-01Mor.tdb:BCC_A2, tdb:MoNi-05Zho.tdb:BCC_A2, tdb:MoNi-18Yaq.tdb:BCC_A2, tdb:MoNi-90Fri.tdb:BCC_A2, tdb:MoNi-99Cui-LB.tdb:BCC_A2

TDB models of BCC_A2 (5): PHASE and CONSTITUENT statements as written

MoNi-01Mor.tdb: BCC_A2, type code %B, sha256 de623892aa4864fb…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : MO% NI : VA : !

MoNi-05Zho.tdb: BCC_A2, type code %B, sha256 03fecfc9d1c2d368…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : MO% NI : VA : !

MoNi-18Yaq.tdb: BCC_A2, type code %B, sha256 3924118c41734126…

29: PHASE BCC_A2 %B 2 1 3 !
30: CONST BCC_A2 : MO% NI : VA : !

MoNi-90Fri.tdb: BCC_A2, type code %B, sha256 466888685f3de89e…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : MO% NI : VA : !

MoNi-99Cui-LB.tdb: BCC_A2, type code %B, sha256 5e95ab16e2564ecb…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : MO% NI : VA : !

Example references (5 of 5; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-999-0110-0 Yuwen Cui, Zhanpeng Jin, Xiaogang Lu, Experimental study and thermodynamic assessment of the Ni-Mo-Ta ternary system, Metall Mater Trans A 30, 2735-2744 (1999).
assessment that models this phase
doi:10.1016/0364-5916(90)90031-T K. Frisk, Calphad, 14, 371-380(1990).
assessment that models this phase
doi:10.1016/j.calphad.2018.07.002 K. Yaqoob, J.-C. Crivello, J.-M. Joubert, Calphad, 62, 215-22(2018).
assessment that models this phase
doi:10.1016/S0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, J. Alloys Compd., 314, 212-18(2001).
assessment that models this phase

NI3X_II_D0A (Mo–Ni)

Id: phase:mo-ni:d0a-ii-ni3x; status needs_review
No structure assigned. Why: unrecognised_name_tokens:NI3X,II
Candidate (dft_mp): Pmmn (59) — on-hull MP Ni3Mo at x(NI)=0.7500
Candidate (dft_oqmd): Pmmn (59) — on-hull OQMD Mo1 Ni3 at x(NI)=0.7500
Candidate (name_token): beta-Cu3Ti · D0_a · oP8 · Pmmn (59) — Strukturbericht/word 'D0A' in the TDB name
Candidate (tdb_comment): beta-Cu3Ti · oP8 · Pmmn — MoNi-05Zho.tdb: 'Prototype beta-Cu3Ti (oP8, Pmmn)'
Stability: stable in 1 of 1 calculated diagram(s): 300–1192.88 K, x(Ni) 0.75–0.76382
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:mo-ni:d0a-ii-ni3x
tdb: tdb:MoNi-05Zho.tdb:NI3X_II_D0A

TDB models of NI3X_II_D0A (1): PHASE and CONSTITUENT statements as written

MoNi-05Zho.tdb: NI3X_II_D0A, type code %, sha256 03fecfc9d1c2d368…

61: PHASE NI3X_II_D0A % 2 3 1 !
62: CONST NI3X_II_D0A : MO NI% : MO% NI : !

Example references (1 of 1; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase

NI3X_D0A (Mo–Ni)

Id: phase:mo-ni:d0a-ni3x; status assigned
Structure: beta-Cu3Ti · D0_a · oP8 · Pmmn (59); type st:d0-a-beta-cu3ti-op8; 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 (unrecognised_name_tokens:NI3X); structure as stated in the SGTE crystallographic table for this phase name and system
Caveat: partitioned order/disorder model in MoNi-05Zho.tdb also describes the disordered state
Caveat: partitioned order/disorder model in MoNi-99Cui-LB.tdb also describes the disordered state
Stability: stable in 4 of 4 calculated diagram(s): 300–1200.81 K, x(Ni) 0.75–0.76223
Literature: 9 values (9 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mo-ni:d0a-ni3x, corpus:phase:mo-ni:ni3x-d0a
paper: paper:10.1016/j.msea.2005.02.037:Ni3Mo
tdb: tdb:MoNi-05Zho.tdb:NI3X_D0A, tdb:MoNi-18Yaq.tdb:NI3X_D0A, tdb:MoNi-90Fri.tdb:NI3X_D0A, tdb:MoNi-99Cui-LB.tdb:NI3X_D0A

TDB models of NI3X_D0A (4): PHASE and CONSTITUENT statements as written

MoNi-05Zho.tdb: NI3X_D0A, type code %, sha256 03fecfc9d1c2d368…

55: PHASE NI3X_D0A % 3 2 1 1 !
56: CONST NI3X_D0A : MO NI : NI : MO NI : !

MoNi-18Yaq.tdb: NI3X_D0A, type code %, sha256 3924118c41734126…

39: PHASE NI3X_D0A % 2 3 1 !
40: CONST NI3X_D0A : NI : MO : !

MoNi-90Fri.tdb: NI3X_D0A, type code %, sha256 466888685f3de89e…

49: PHASE NI3X_D0A % 2 3 1 !
50: CONST NI3X_D0A : NI : MO : !

MoNi-99Cui-LB.tdb: NI3X_D0A, type code %, sha256 5e95ab16e2564ecb…

40: PHASE NI3X_D0A % 2 3 1 !
41: CONST NI3X_D0A : MO NI% : MO% NI : !

Example references (5 of 5; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-999-0110-0 Yuwen Cui, Zhanpeng Jin, Xiaogang Lu, Experimental study and thermodynamic assessment of the Ni-Mo-Ta ternary system, Metall Mater Trans A 30, 2735-2744 (1999).
assessment that models this phase
doi:10.1016/0364-5916(90)90031-T K. Frisk, Calphad, 14, 371-380(1990).
assessment that models this phase
doi:10.1016/j.calphad.2018.07.002 K. Yaqoob, J.-C. Crivello, J.-M. Joubert, Calphad, 62, 215-22(2018).
assessment that models this phase
doi:10.1515/ijmr-1973-640608 C.P. Heijwegen, G.D. Rieck, Z. Metallkd. 64 (1973) 450–453.
cited as the source of values for this phase

NI4X_D1A (Mo–Ni)

Id: phase:mo-ni:d1a-ni4x; status assigned
Structure: MoNi4 · D1_a · tI10 · I4/m (87); type st:d1-a-moni4-ti10; 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: DFT agrees: on-hull mp-aaaaarap and oqmd-30768, space group 87
Caveat: not certain from the name or DFT alone (unrecognised_name_tokens:NI4X); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Mo 0.2000, Ni 0.8000
Stability: stable in 4 of 4 calculated diagram(s): 300–1170 K, x(Ni) 0.8–0.8
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (9): corpus: corpus:phase:mo-ni:d1a-ni4x, corpus:phase:mo-ni:ni4x-d1a
mp: mp:mp-aaaaarap
oqmd: oqmd:oqmd-30768
paper: paper:10.1016/j.msea.2005.02.037:Ni4Mo
tdb: tdb:MoNi-05Zho.tdb:NI4X_D1A, tdb:MoNi-18Yaq.tdb:NI4X_D1A, tdb:MoNi-90Fri.tdb:NI4X_D1A, tdb:MoNi-99Cui-LB.tdb:NI4X_D1A

TDB models of NI4X_D1A (4): PHASE and CONSTITUENT statements as written

MoNi-05Zho.tdb: NI4X_D1A, type code %, sha256 03fecfc9d1c2d368…

66: PHASE NI4X_D1A % 2 4 1 !
67: CONST NI4X_D1A : NI : MO : !

MoNi-18Yaq.tdb: NI4X_D1A, type code %, sha256 3924118c41734126…

44: PHASE NI4X_D1A % 2 4 1 !
45: CONST NI4X_D1A : NI : MO : !

MoNi-90Fri.tdb: NI4X_D1A, type code %, sha256 466888685f3de89e…

54: PHASE NI4X_D1A % 2 4 1 !
55: CONST NI4X_D1A : NI : MO : !

MoNi-99Cui-LB.tdb: NI4X_D1A, type code %, sha256 5e95ab16e2564ecb…

45: PHASE NI4X_D1A % 2 4 1 !
46: CONST NI4X_D1A : NI : MO : !

Example references (5 of 5; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-999-0110-0 Yuwen Cui, Zhanpeng Jin, Xiaogang Lu, Experimental study and thermodynamic assessment of the Ni-Mo-Ta ternary system, Metall Mater Trans A 30, 2735-2744 (1999).
assessment that models this phase
doi:10.1016/0364-5916(90)90031-T K. Frisk, Calphad, 14, 371-380(1990).
assessment that models this phase
doi:10.1016/j.calphad.2018.07.002 K. Yaqoob, J.-C. Crivello, J.-M. Joubert, Calphad, 62, 215-22(2018).
assessment that models this phase
doi:10.1002/pssa.2210900209 J. Mayer, K. Urban, Observation of Ni8Mo ordered phase in Ni-Mo alloys, phys. stat. sol. (a) 90, 469-475 (1985).
cited as the source of values for this phase

FCC_A1 (Mo–Ni)

Id: phase:mo-ni:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 300–1732.13 K, x(Ni) 0.71485–1
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mo-ni:fcc-a1
paper: paper:10.1016/j.msea.2005.02.037:fcc
tdb: tdb:MoNi-01Mor.tdb:FCC_A1, tdb:MoNi-05Zho.tdb:FCC_A1, tdb:MoNi-18Yaq.tdb:FCC_A1, tdb:MoNi-90Fri.tdb:FCC_A1, tdb:MoNi-99Cui-LB.tdb:FCC_A1

TDB models of FCC_A1 (5): PHASE and CONSTITUENT statements as written

MoNi-01Mor.tdb: FCC_A1, type code %A, sha256 de623892aa4864fb…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : MO NI% : VA : !

MoNi-05Zho.tdb: FCC_A1, type code %A, sha256 03fecfc9d1c2d368…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : MO NI% : VA : !

MoNi-18Yaq.tdb: FCC_A1, type code %A, sha256 3924118c41734126…

24: PHASE FCC_A1 %A 2 1 1 !
25: CONST FCC_A1 : MO NI% : VA : !

MoNi-90Fri.tdb: FCC_A1, type code %A, sha256 466888685f3de89e…

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

MoNi-99Cui-LB.tdb: FCC_A1, type code %A, sha256 5e95ab16e2564ecb…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : MO NI% : VA : !

Example references (6 of 6; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-999-0110-0 Yuwen Cui, Zhanpeng Jin, Xiaogang Lu, Experimental study and thermodynamic assessment of the Ni-Mo-Ta ternary system, Metall Mater Trans A 30, 2735-2744 (1999).
assessment that models this phase
doi:10.1016/0364-5916(90)90031-T K. Frisk, Calphad, 14, 371-380(1990).
assessment that models this phase
doi:10.1016/j.calphad.2018.07.002 K. Yaqoob, J.-C. Crivello, J.-M. Joubert, Calphad, 62, 215-22(2018).
assessment that models this phase
doi:10.1016/S0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, J. Alloys Compd., 314, 212-18(2001).
assessment that models this phase
doi:10.1002/pssa.2210900209 J. Mayer, K. Urban, Observation of Ni8Mo ordered phase in Ni-Mo alloys, phys. stat. sol. (a) 90, 469-475 (1985).
cited as the source of values for this phase

HCP_A3 (Mo–Ni)

Id: phase:mo-ni: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 5 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:mo-ni:hcp-a3
tdb: tdb:MoNi-01Mor.tdb:HCP_A3, tdb:MoNi-05Zho.tdb:HCP_A3, tdb:MoNi-18Yaq.tdb:HCP_A3, tdb:MoNi-90Fri.tdb:HCP_A3, tdb:MoNi-99Cui-LB.tdb:HCP_A3

TDB models of HCP_A3 (5): PHASE and CONSTITUENT statements as written

MoNi-01Mor.tdb: HCP_A3, type code %A, sha256 de623892aa4864fb…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : MO NI : VA : !

MoNi-05Zho.tdb: HCP_A3, type code %A, sha256 03fecfc9d1c2d368…

40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 : MO NI : VA : !

MoNi-18Yaq.tdb: HCP_A3, type code %A, sha256 3924118c41734126…

34: PHASE HCP_A3 %A 2 1 0.5 !
35: CONST HCP_A3 : MO NI : VA : !

MoNi-90Fri.tdb: HCP_A3, type code %A, sha256 466888685f3de89e…

44: PHASE HCP_A3 %A 2 1 0.5 !
45: CONST HCP_A3 : MO NI : VA : !

MoNi-99Cui-LB.tdb: HCP_A3, type code %A, sha256 5e95ab16e2564ecb…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : MO NI : VA : !

Example references (5 of 5; assessments first):

doi:10.1007/s11661-999-0110-0 Yuwen Cui, Zhanpeng Jin, Xiaogang Lu, Experimental study and thermodynamic assessment of the Ni-Mo-Ta ternary system, Metall Mater Trans A 30, 2735-2744 (1999).
assessment that models this phase
doi:10.1016/0364-5916(90)90031-T K. Frisk, Calphad, 14, 371-380(1990).
assessment that models this phase
doi:10.1016/j.calphad.2018.07.002 K. Yaqoob, J.-C. Crivello, J.-M. Joubert, Calphad, 62, 215-22(2018).
assessment that models this phase
doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase
doi:10.1016/S0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, J. Alloys Compd., 314, 212-18(2001).
assessment that models this phase

LIQUID (Mo–Ni)

Id: phase:mo-ni:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 1577.29–4000 K, x(Ni) 0–1
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mo-ni:liquid
paper: paper:10.1016/j.msea.2005.02.037:L
tdb: tdb:MoNi-01Mor.tdb:LIQUID, tdb:MoNi-05Zho.tdb:LIQUID, tdb:MoNi-18Yaq.tdb:LIQUID, tdb:MoNi-90Fri.tdb:LIQUID, tdb:MoNi-99Cui-LB.tdb:LIQUID

TDB models of LIQUID (5): PHASE and CONSTITUENT statements as written

MoNi-01Mor.tdb: LIQUID, type code %, sha256 de623892aa4864fb…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : MO NI : !

MoNi-05Zho.tdb: LIQUID, type code %, sha256 03fecfc9d1c2d368…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : MO NI : !

MoNi-18Yaq.tdb: LIQUID, type code %, sha256 3924118c41734126…

19: PHASE LIQUID:L % 1 1 !
20: CONST LIQUID:L : MO NI : !

MoNi-90Fri.tdb: LIQUID, type code %, sha256 466888685f3de89e…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : MO NI : !

MoNi-99Cui-LB.tdb: LIQUID, type code %, sha256 5e95ab16e2564ecb…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : MO NI : !

Example references (5 of 5; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-999-0110-0 Yuwen Cui, Zhanpeng Jin, Xiaogang Lu, Experimental study and thermodynamic assessment of the Ni-Mo-Ta ternary system, Metall Mater Trans A 30, 2735-2744 (1999).
assessment that models this phase
doi:10.1016/0364-5916(90)90031-T K. Frisk, Calphad, 14, 371-380(1990).
assessment that models this phase
doi:10.1016/j.calphad.2018.07.002 K. Yaqoob, J.-C. Crivello, J.-M. Joubert, Calphad, 62, 215-22(2018).
assessment that models this phase
doi:10.1016/S0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, J. Alloys Compd., 314, 212-18(2001).
assessment that models this phase

MONI (Mo–Ni)

Id: phase:mo-ni:moni; status assigned
Structure: MoNi · oP56 · P2_12_12_1 (19); type st:moni-op56; 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_structure_token, off_stoichiometric_model); structure as stated in the SGTE crystallographic table for this phase name and system
Stability: stable in 5 of 5 calculated diagram(s): 300–1668.27 K, x(Ni) 0.42874–0.53848
Literature: 11 values (11 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mo-ni:moni
paper: paper:10.1016/j.msea.2005.02.037:δ-NiMo
tdb: tdb:MoNi-01Mor.tdb:MONI, tdb:MoNi-05Zho.tdb:MONI, tdb:MoNi-18Yaq.tdb:MONI, tdb:MoNi-90Fri.tdb:MONI, tdb:MoNi-99Cui-LB.tdb:MONI

TDB models of MONI (5): PHASE and CONSTITUENT statements as written

MoNi-01Mor.tdb: MONI, type code %, sha256 de623892aa4864fb…

43: PHASE MONI % 2 1 1 !
44: CONST MONI : MO : NI : !

MoNi-05Zho.tdb: MONI, type code %, sha256 03fecfc9d1c2d368…

45: PHASE MONI % 3 6 5 3 !
46: CONST MONI : NI : MO NI : MO : !

MoNi-18Yaq.tdb: MONI, type code %, sha256 3924118c41734126…

49: PHASE MONI % 3 6 5 3 !
50: CONST MONI : NI : MO NI : MO : !

MoNi-90Fri.tdb: MONI, type code %, sha256 466888685f3de89e…

59: PHASE MONI % 3 6 5 3 !
60: CONST MONI : NI : MO NI : MO : !

MoNi-99Cui-LB.tdb: MONI, type code %, sha256 5e95ab16e2564ecb…

50: PHASE MONI % 3 6 5 3 !
51: CONST MONI : NI : MO NI : MO : !

Example references (6 of 6; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-999-0110-0 Yuwen Cui, Zhanpeng Jin, Xiaogang Lu, Experimental study and thermodynamic assessment of the Ni-Mo-Ta ternary system, Metall Mater Trans A 30, 2735-2744 (1999).
assessment that models this phase
doi:10.1016/0364-5916(90)90031-T K. Frisk, Calphad, 14, 371-380(1990).
assessment that models this phase
doi:10.1016/j.calphad.2018.07.002 K. Yaqoob, J.-C. Crivello, J.-M. Joubert, Calphad, 62, 215-22(2018).
assessment that models this phase
doi:10.1016/S0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, J. Alloys Compd., 314, 212-18(2001).
assessment that models this phase
doi:10.1515/ijmr-1973-640608 C.P. Heijwegen, G.D. Rieck, Z. Metallkd. 64 (1973) 450–453.
cited as the source of values for this phase

MONI2 (Mo–Ni)

Id: phase:mo-ni:moni2; status assigned
Structure: MoPt2 · oI6 · Immm (71); type st:mopt2-oi6; 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_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Mo 0.3333, Ni 0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300–1040 K, x(Ni) 0.66667–0.66667
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mo-ni:moni2
paper: paper:10.1016/j.msea.2005.02.037:Ni2Mo
tdb: tdb:MoNi-05Zho.tdb:MONI2

TDB models of MONI2 (1): PHASE and CONSTITUENT statements as written

MoNi-05Zho.tdb: MONI2, type code %, sha256 03fecfc9d1c2d368…

50: PHASE MONI2 % 2 2 1 !
51: CONST MONI2 : NI : MO : !

Example references (2 of 2; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1973-640608 C.P. Heijwegen, G.D. Rieck, Z. Metallkd. 64 (1973) 450–453.
cited as the source of values for this phase

NI8X (Mo–Ni)

Id: phase:mo-ni:ni8x; status assigned
Structure: Pt8Ti · tI18 · I4/mmm (139); type st:pt8ti-ti18; 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 (name_has_descriptive_tokens:NI8X, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Mo 0.1111, Ni 0.8889
Stability: stable in 1 of 1 calculated diagram(s): 300–557.03 K, x(Ni) 0.88889–0.88889
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mo-ni:ni8x
paper: paper:10.1016/j.msea.2005.02.037:Ni8Mo
tdb: tdb:MoNi-05Zho.tdb:NI8X

TDB models of NI8X (1): PHASE and CONSTITUENT statements as written

MoNi-05Zho.tdb: NI8X, type code %, sha256 03fecfc9d1c2d368…

71: PHASE NI8X % 2 8 1 !
72: CONST NI8X : NI : MO : !

Example references (2 of 2; assessments first):

doi:10.1016/j.msea.2005.02.037 S.H. Zhou, Y. Wang, C. Jiang, J.Z. Zhu, L.-Q. Chen, Z.-K. Liu, First-principles calculations and thermodynamic modeling of the Ni–Mo system, Materials Science and Engineering: A 397, 288-296 (2005).
assessment that models this phase; reports values for this phase
doi:10.1002/pssa.2210900209 J. Mayer, K. Urban, Observation of Ni8Mo ordered phase in Ni-Mo alloys, phys. stat. sol. (a) 90, 469-475 (1985).
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). 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}
}