B–Mo phases

17 phases (tier A 7, tier C 3, liquid 1, needs_review 6); 15 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 · B–Mo system page · Markdown · field reference

Phases of the B–Mo system (17)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BETA_RHOMBO_B phase:b-mo:b-beta-rhombo		needs_review	stable in 5 of 5 calculated diagram(s): 300–2374.37 K, x(B) 0.99727–1	13	5
MB_B33 phase:b-mo:b33-mb	CrB · B33 · oC8 · Cmcm (63)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–2885.07 K, x(B) 0.5–0.5	0	1
BCC_A2 phase:b-mo:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–3999.77 K, x(B) 0–0.02574	14	5
MB2_C32 phase:b-mo:c32-mb2		needs_review	stable in 1 of 1 calculated diagram(s): 778.4–2631.76 K, x(B) 0.58069–0.71272	0	1
FCC_A1 phase:b-mo:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 5 calculated diagram(s)	0	5
HCP_A3 phase:b-mo: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:b-mo:liquid	liquid	liquid	stable in 5 of 5 calculated diagram(s): 2157.28–4000 K, x(B) 0–1	51	5
MO2B_C16 phase:b-mo:mo2b-c16	Al2Cu · C16 · tI12 · I4/mcm (140)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–2561.11 K, x(B) 0.32601–0.3375	26	5
MO2B3_C32 phase:b-mo:mo2b3-c32	AlB2 · C32 · hP3 · P6/mmm (191)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1784.31–2662.57 K, x(B) 0.59841–0.60475	0	1
MO2B5_D8I phase:b-mo:mo2b5-d8i		needs_review	stable in 3 of 3 calculated diagram(s): 300–2418.24 K, x(B) 0.67085–0.71429	26	3
MO3B2_D5A phase:b-mo:mo3b2-d5a	Si2U3 · D5_a · tP10 · P4/mbm (127)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 2197.66–2659.76 K, x(B) 0.4–0.4	0	2
MOB phase:b-mo:mob		needs_review	stable in 2 of 2 calculated diagram(s): 300–2876.77 K, x(B) 0.5–0.5	0	2
MOB_B33 phase:b-mo:mob-b33	CrB · B33 · oC8 · Cmcm (63)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–2870 K, x(B) 0.48621–0.50764	32	2
MOB_BG phase:b-mo:mob-bg	MoB · B_g · tI16 · I4_1/amd (141)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2454.33 K, x(B) 0.48305–0.50165	18	1
MOB2_C32 phase:b-mo:mob2-c32		needs_review	stable in 3 of 3 calculated diagram(s): 1764.31–2653.79 K, x(B) 0.61453–0.66137	25	3
MOB2_D8I phase:b-mo:mob2-d8i		needs_review	stable in 1 of 1 calculated diagram(s): 300–2423.32 K, x(B) 0.66667–0.66667	0	1
MOB4 phase:b-mo:mob4	MoB4 · hP16 · P6_3/mmc (194)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 5 of 5 calculated diagram(s): 300–2087.99 K, x(B) 0.8–0.81156	3	5

BETA_RHOMBO_B (B–Mo)

Id: phase:b-mo:b-beta-rhombo; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:RHOMBO; no_structure_token
Candidate (sgte_mmc2): beta-B · hR105 · R-3m (166) — Hallstedt 2025 mmc2 row for BETA_RHOMBO_B: beta-B
Candidate (tdb_comment): beta-B · hR105 · R-3m — MoB-05Yan.tdb: 'Prototype beta-B (hR105, R-3m)'
Candidate (tdb_comment): beta-B · hR105 · R-3m — MoB-09Yam.tdb: 'Prototype beta-B (hR105, R-3m)'
Candidate (tdb_comment): beta-B · hR105 · R-3m — MoB-16Wit.tdb: 'Prototype beta-B (hR105, R-3m)'
Candidate (tdb_comment): beta-B · hR105 · R-3m — MoB-20Tak.tdb: 'Prototype beta-B (hR105, R-3m)'
Candidate (tdb_comment): beta-B · hR105 · R-3m — MoB-91Pan-LB.tdb: 'Prototype beta-B (hR105, R-3m)'
Stability: stable in 5 of 5 calculated diagram(s): 300–2374.37 K, x(B) 0.99727–1
Literature: 13 values (13 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:b-mo:b-beta-rhombo
paper: paper:10.1016/j.jallcom.2015.09.158:β(B)
tdb: tdb:MoB-05Yan.tdb:BETA_RHOMBO_B, tdb:MoB-09Yam.tdb:BETA_RHOMBO_B, tdb:MoB-16Wit.tdb:BETA_RHOMBO_B, tdb:MoB-20Tak.tdb:BETA_RHOMBO_B, tdb:MoB-91Pan-LB.tdb:BETA_RHOMBO_B

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

MoB-05Yan.tdb: BETA_RHOMBO_B, type code %, sha256 70d1d12bc57b9f23…

43: PHASE BETA_RHOMBO_B % 1 1 !
44: CONST BETA_RHOMBO_B : B : !

MoB-09Yam.tdb: BETA_RHOMBO_B, type code %, sha256 cb515d628eb00bec…

57: PHASE BETA_RHOMBO_B % 1 1 !
58: CONST BETA_RHOMBO_B : B : !

MoB-16Wit.tdb: BETA_RHOMBO_B, type code %, sha256 36161abf7ae35139…

40: PHASE BETA_RHOMBO_B % 1 1 !
41: CONST BETA_RHOMBO_B : B% MO : !

MoB-20Tak.tdb: BETA_RHOMBO_B, type code %, sha256 3d8f0c60fb6fc085…

51: PHASE BETA_RHOMBO_B % 1 1 !
52: CONST BETA_RHOMBO_B : B : !

MoB-91Pan-LB.tdb: BETA_RHOMBO_B, type code %, sha256 ad22665acf03099e…

41: PHASE BETA_RHOMBO_B % 1 1 !
42: CONST BETA_RHOMBO_B : B : !

Example references (6 of 6; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
cited as the source of values for this phase
doi:10.1021/j100519a008 Edmund Storms, Barbara Mueller, Phase relations and thermodynamic properties of transition metal borides. I. The molybdenum-boron system and elemental boron., J. Phys. Chem. 81, 318-324 (1977).
cited as the source of values for this phase

MB_B33 (B–Mo)

Id: phase:b-mo:b33-mb; status assigned
Structure: CrB · B33 · oC8 · Cmcm (63); type st:b33-crb-oc8; 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:MB, no_structure_token, structure_token_is_also_a_formula); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: B 0.5000, Mo 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–2885.07 K, x(B) 0.5–0.5
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:b-mo:b33-mb
tdb: tdb:MoB-09Yam.tdb:MB_B33

TDB models of MB_B33 (1): PHASE and CONSTITUENT statements as written

MoB-09Yam.tdb: MB_B33, type code %, sha256 cb515d628eb00bec…

73: PHASE MB_B33 % 2 1 1 !
74: CONST MB_B33 : MO : B : !

Example references (1 of 1; assessments first):

doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase

BCC_A2 (B–Mo)

Id: phase:b-mo: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): 300–3999.77 K, x(B) 0–0.02574
Literature: 14 values (14 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:b-mo:bcc-a2
paper: paper:10.1016/j.jallcom.2015.09.158:A2Mo
tdb: tdb:MoB-05Yan.tdb:BCC_A2, tdb:MoB-09Yam.tdb:BCC_A2, tdb:MoB-16Wit.tdb:BCC_A2, tdb:MoB-20Tak.tdb:BCC_A2, tdb:MoB-91Pan-LB.tdb:BCC_A2

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

MoB-05Yan.tdb: BCC_A2, type code %B, sha256 70d1d12bc57b9f23…

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

MoB-09Yam.tdb: BCC_A2, type code %B, sha256 cb515d628eb00bec…

47: PHASE BCC_A2 %B 2 1 3 !
48: CONST BCC_A2 : B MO% : VA : !

MoB-16Wit.tdb: BCC_A2, type code %B, sha256 36161abf7ae35139…

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

MoB-20Tak.tdb: BCC_A2, type code %B, sha256 3d8f0c60fb6fc085…

41: PHASE BCC_A2 %B 2 1 3 !
42: CONST BCC_A2 : B MO% : VA : !

MoB-91Pan-LB.tdb: BCC_A2, type code %B, sha256 ad22665acf03099e…

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

Example references (6 of 6; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, Calculated phase diagram of the Ni–Mo–B ternary system, Journal of Alloys and Compounds 314, 212-218 (2001).
cited as the source of values for this phase

MB2_C32 (B–Mo)

Id: phase:b-mo:c32-mb2; status needs_review
No structure assigned. Why: sgte_mmc2_row_disagrees_with_name:MB2_C32; sgte_mmc2_rows_disagree; unrecognised_name_tokens:MB2
Candidate (name_token): AlB2 · C32 · hP3 · P6/mmm (191) — Strukturbericht/word 'C32' in the TDB name
Candidate (sgte_mmc2): AlB2 · C32 · hP3 · P6/mmm (191) — Hallstedt 2025 mmc2 row for MB2_C32: CrB2, MoB2, ZrB2
Candidate (sgte_mmc2): Mo2B5 · D8_i · hR7 · R-3m (166) — Hallstedt 2025 mmc2 row for MB2_C32: Mo2B5 (see AlB2)
Candidate (tdb_comment): AlB2 · hP3 · P6/mmm — MoB-09Yam.tdb: 'Prototype AlB2 (hP3, P6/mmm)'
Stability: stable in 1 of 1 calculated diagram(s): 778.4–2631.76 K, x(B) 0.58069–0.71272
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:b-mo:c32-mb2
tdb: tdb:MoB-09Yam.tdb:MB2_C32

TDB models of MB2_C32 (1): PHASE and CONSTITUENT statements as written

MoB-09Yam.tdb: MB2_C32, type code %, sha256 cb515d628eb00bec…

79: PHASE MB2_C32 % 2 1 2 !
80: CONST MB2_C32 : MO VA : B VA : !

Example references (1 of 1; assessments first):

doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase

FCC_A1 (B–Mo)

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

Names (6): corpus: corpus:phase:b-mo:fcc-a1
tdb: tdb:MoB-05Yan.tdb:FCC_A1, tdb:MoB-09Yam.tdb:FCC_A1, tdb:MoB-16Wit.tdb:FCC_A1, tdb:MoB-20Tak.tdb:FCC_A1, tdb:MoB-91Pan-LB.tdb:FCC_A1

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

MoB-05Yan.tdb: FCC_A1, type code %A, sha256 70d1d12bc57b9f23…

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

MoB-09Yam.tdb: FCC_A1, type code %A, sha256 cb515d628eb00bec…

42: PHASE FCC_A1 %A 2 1 1 !
43: CONST FCC_A1 : B MO : VA : !

MoB-16Wit.tdb: FCC_A1, type code %A, sha256 36161abf7ae35139…

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

MoB-20Tak.tdb: FCC_A1, type code %A, sha256 3d8f0c60fb6fc085…

36: PHASE FCC_A1 %A 2 1 1 !
37: CONST FCC_A1 : B MO : VA : !

MoB-91Pan-LB.tdb: FCC_A1, type code %A, sha256 ad22665acf03099e…

26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : MO : B VA% : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase

HCP_A3 (B–Mo)

Id: phase:b-mo: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:b-mo:hcp-a3
tdb: tdb:MoB-05Yan.tdb:HCP_A3, tdb:MoB-09Yam.tdb:HCP_A3, tdb:MoB-16Wit.tdb:HCP_A3, tdb:MoB-20Tak.tdb:HCP_A3, tdb:MoB-91Pan-LB.tdb:HCP_A3

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

MoB-05Yan.tdb: HCP_A3, type code %A, sha256 70d1d12bc57b9f23…

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

MoB-09Yam.tdb: HCP_A3, type code %A, sha256 cb515d628eb00bec…

52: PHASE HCP_A3 %A 2 1 0.5 !
53: CONST HCP_A3 : B MO : VA : !

MoB-16Wit.tdb: HCP_A3, type code %A, sha256 36161abf7ae35139…

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

MoB-20Tak.tdb: HCP_A3, type code %A, sha256 3d8f0c60fb6fc085…

46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : B MO : VA : !

MoB-91Pan-LB.tdb: HCP_A3, type code %A, sha256 ad22665acf03099e…

36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : MO : B VA% : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase

LIQUID (B–Mo)

Id: phase:b-mo:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 2157.28–4000 K, x(B) 0–1
Literature: 51 values (51 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:b-mo:liquid
paper: paper:10.1016/j.jallcom.2015.09.158:L
tdb: tdb:MoB-05Yan.tdb:LIQUID, tdb:MoB-09Yam.tdb:LIQUID, tdb:MoB-16Wit.tdb:LIQUID, tdb:MoB-20Tak.tdb:LIQUID, tdb:MoB-91Pan-LB.tdb:LIQUID

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

MoB-05Yan.tdb: LIQUID, type code %, sha256 70d1d12bc57b9f23…

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

MoB-09Yam.tdb: LIQUID, type code %, sha256 cb515d628eb00bec…

37: PHASE LIQUID:L % 1 1 !
38: CONST LIQUID:L : B MO : !

MoB-16Wit.tdb: LIQUID, type code %, sha256 36161abf7ae35139…

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

MoB-20Tak.tdb: LIQUID, type code %, sha256 3d8f0c60fb6fc085…

31: PHASE LIQUID:L % 1 1 !
32: CONST LIQUID:L : B MO : !

MoB-91Pan-LB.tdb: LIQUID, type code %, sha256 ad22665acf03099e…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : B MO : !

Example references (6 of 6; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, Calculated phase diagram of the Ni–Mo–B ternary system, Journal of Alloys and Compounds 314, 212-218 (2001).
cited as the source of values for this phase

MO2B_C16 (B–Mo)

Id: phase:b-mo:mo2b-c16; status assigned
Structure: Al2Cu · C16 · tI12 · I4/mcm (140); type st:c16-al2cu-ti12; tier A: standard phase name; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 300–2561.11 K, x(B) 0.32601–0.3375
Literature: 26 values (26 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:b-mo:mo2b-c16
paper: paper:10.1016/j.jallcom.2015.09.158:Mo2B
tdb: tdb:MoB-05Yan.tdb:MO2B_C16, tdb:MoB-09Yam.tdb:MO2B_C16, tdb:MoB-16Wit.tdb:MO2B_C16, tdb:MoB-20Tak.tdb:MO2B_C16, tdb:MoB-91Pan-LB.tdb:MO2B_C16

TDB models of MO2B_C16 (5): PHASE and CONSTITUENT statements as written

MoB-05Yan.tdb: MO2B_C16, type code %, sha256 70d1d12bc57b9f23…

48: PHASE MO2B_C16 % 2 2 1 !
49: CONST MO2B_C16 : MO : B : !

MoB-09Yam.tdb: MO2B_C16, type code %, sha256 cb515d628eb00bec…

62: PHASE MO2B_C16 % 2 2 1 !
63: CONST MO2B_C16 : MO : B : !

MoB-16Wit.tdb: MO2B_C16, type code %, sha256 36161abf7ae35139…

45: PHASE MO2B_C16 % 2 2 1 !
46: CONST MO2B_C16 : MO% VA : B% VA : !

MoB-20Tak.tdb: MO2B_C16, type code %, sha256 3d8f0c60fb6fc085…

56: PHASE MO2B_C16 % 2 2 1 !
57: CONST MO2B_C16 : MO : B : !

MoB-91Pan-LB.tdb: MO2B_C16, type code %, sha256 ad22665acf03099e…

46: PHASE MO2B_C16 % 2 2 1 !
47: CONST MO2B_C16 : MO : B : !

Example references (6 of 6; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, Calculated phase diagram of the Ni–Mo–B ternary system, Journal of Alloys and Compounds 314, 212-218 (2001).
cited as the source of values for this phase

MO2B3_C32 (B–Mo)

Id: phase:b-mo:mo2b3-c32; status assigned
Structure: AlB2 · C32 · hP3 · P6/mmm (191); type st:c32-alb2-hp3; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 1784.31–2662.57 K, x(B) 0.59841–0.60475
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:b-mo:mo2b3-c32
tdb: tdb:MoB-20Tak.tdb:MO2B3_C32

TDB models of MO2B3_C32 (1): PHASE and CONSTITUENT statements as written

MoB-20Tak.tdb: MO2B3_C32, type code %, sha256 3d8f0c60fb6fc085…

72: PHASE MO2B3_C32 % 2 1 2 !
73: CONST MO2B3_C32 : MO : B% VA : !

Example references (1 of 1; assessments first):

doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase

MO2B5_D8I (B–Mo)

Id: phase:b-mo:mo2b5-d8i; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:site_ratios_contradict_D8_i; site_ratios_contradict_D8_i:MoB-16Wit.tdb; stoichiometry_contradicts_D8_i:MoB-91Pan-LB.tdb
Candidate (literature_printed): Mo2B5 · hR7 — printed with a label mapped to this phase
Candidate (name_token): Mo2B5 · D8_i · hR7 · R-3m (166) — Strukturbericht/word 'D8I' in the TDB name
Candidate (sgte_mmc2): Mo2B5 · D8_i · hR7 · R-3m (166) — Hallstedt 2025 mmc2 row for MO2B5_D8I: Mo2B5
Candidate (sgte_mmc2): Mo2B5 · D8_i · hR7 · R-3m (166) — Hallstedt 2025 mmc2 row for MO2B5_D8I: Mo8B17
Candidate (tdb_comment): Mo2B5 · hR6 · R-3m — MoB-05Yan.tdb: 'Prototype Mo2B5 (hR6, R-3m)'
Candidate (tdb_comment): Mo2B5 · hR6 · R-3m — MoB-16Wit.tdb: 'Prototype Mo2B5 (hR6, R-3m)'
Candidate (tdb_comment): Mo2B5 · hR7 · R-3m — MoB-91Pan-LB.tdb: 'Prototype Mo2B5 (hR7, R-3m)'
Stability: stable in 3 of 3 calculated diagram(s): 300–2418.24 K, x(B) 0.67085–0.71429
Literature: 26 values (26 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-mo:mo2b5-d8i
paper: paper:10.1016/j.jallcom.2015.09.158:Mo2B5
tdb: tdb:MoB-05Yan.tdb:MO2B5_D8I, tdb:MoB-16Wit.tdb:MO2B5_D8I, tdb:MoB-91Pan-LB.tdb:MO2B5_D8I

TDB models of MO2B5_D8I (3): PHASE and CONSTITUENT statements as written

MoB-05Yan.tdb: MO2B5_D8I, type code %, sha256 70d1d12bc57b9f23…

64: PHASE MO2B5_D8I % 2 2 5 !
65: CONST MO2B5_D8I : MO : B% VA : !

MoB-16Wit.tdb: MO2B5_D8I, type code %, sha256 36161abf7ae35139…

65: PHASE MO2B5_D8I % 2 0.32 0.68 !
66: CONST MO2B5_D8I : MO% VA : B% VA : !

MoB-91Pan-LB.tdb: MO2B5_D8I, type code %, sha256 ad22665acf03099e…

62: PHASE MO2B5_D8I % 2 8 17 !
63: CONST MO2B5_D8I : MO : B : !

Example references (5 of 5; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
cited as the source of values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
cited as the source of values for this phase
doi:10.1021/j100519a008 Edmund Storms, Barbara Mueller, Phase relations and thermodynamic properties of transition metal borides. I. The molybdenum-boron system and elemental boron., J. Phys. Chem. 81, 318-324 (1977).
cited as the source of values for this phase

MO3B2_D5A (B–Mo)

Id: phase:b-mo:mo3b2-d5a; status assigned
Structure: Si2U3 · D5_a · tP10 · P4/mbm (127); type st:d5-a-si2u3-tp10; tier A: standard phase name; confidence high
Stoichiometry: B 0.4000, Mo 0.6000
Stability: stable in 2 of 2 calculated diagram(s): 2197.66–2659.76 K, x(B) 0.4–0.4
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:b-mo:mo3b2-d5a
tdb: tdb:MoB-09Yam.tdb:MO3B2_D5A, tdb:MoB-20Tak.tdb:MO3B2_D5A

TDB models of MO3B2_D5A (2): PHASE and CONSTITUENT statements as written

MoB-09Yam.tdb: MO3B2_D5A, type code %, sha256 cb515d628eb00bec…

67: PHASE MO3B2_D5A % 2 3 2 !
68: CONST MO3B2_D5A : MO : B : !

MoB-20Tak.tdb: MO3B2_D5A, type code %, sha256 3d8f0c60fb6fc085…

61: PHASE MO3B2_D5A % 2 3 2 !
62: CONST MO3B2_D5A : MO : B : !

Example references (2 of 2; assessments first):

doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase

MOB (B–Mo)

Id: phase:b-mo:mob; status needs_review
No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition; sgte_mmc2_rows_disagree
Candidate (dft_mp): I4_1/amd (141) — on-hull MP BMo at x(MO)=0.5000
Candidate (dft_oqmd): I41/amd (141) — on-hull OQMD B1 Mo1 at x(MO)=0.5000
Candidate (sgte_mmc2): MoB · B_g · tI16 · I4_1/amd (141) — Hallstedt 2025 mmc2 row for MOB: alpha-MoB
Candidate (sgte_mmc2): CrB · B33 · oC8 · Cmcm (63) — Hallstedt 2025 mmc2 row for MOB: beta-MoB
Candidate (tdb_comment): CrB · oC8 · Cmcm — MoB-05Yan.tdb: 'Prototype CrB (oC8, Cmcm), this is beta-MoB'
Candidate (tdb_comment): MoB · tI16 · I4_1/amd — MoB-05Yan.tdb: 'Prototype MoB (tI16, I4_1/amd), this is alpha-MoB'
Candidate (tdb_comment): CrB · oC8 · Cmcm, SB B33 — MoB-91Pan-LB.tdb: 'Prototype CrB (oC8, Cmcm, SB B33), beta-MoB'
Candidate (tdb_comment): MoB · tI16 · I4_1/amd, SB B_g — MoB-91Pan-LB.tdb: 'Prototype MoB (tI16, I4_1/amd, SB B_g), alpha-MoB'
Stoichiometry: B 0.5000, Mo 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–2876.77 K, x(B) 0.5–0.5
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:b-mo:mob
tdb: tdb:MoB-05Yan.tdb:MOB, tdb:MoB-91Pan-LB.tdb:MOB

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

MoB-05Yan.tdb: MOB, type code %, sha256 70d1d12bc57b9f23…

54: PHASE MOB % 2 1 1 !
55: CONST MOB : MO : B : !

MoB-91Pan-LB.tdb: MOB, type code %, sha256 ad22665acf03099e…

52: PHASE MOB % 2 1 1 !
53: CONST MOB : MO : B : !

Example references (1 of 1; assessments first):

doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase

MOB_B33 (B–Mo)

Id: phase:b-mo:mob-b33; status assigned
Structure: CrB · B33 · oC8 · Cmcm (63); type st:b33-crb-oc8; 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_token_is_also_a_formula); structure as stated in the SGTE crystallographic table for this phase name and system
Stability: stable in 2 of 2 calculated diagram(s): 300–2870 K, x(B) 0.48621–0.50764
Literature: 32 values (32 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-mo:mob-b33
paper: paper:10.1016/j.jallcom.2015.09.158:MoB, paper:10.1016/j.jallcom.2015.09.158:βMoB
tdb: tdb:MoB-16Wit.tdb:MOB_B33, tdb:MoB-20Tak.tdb:MOB_B33

TDB models of MOB_B33 (2): PHASE and CONSTITUENT statements as written

MoB-16Wit.tdb: MOB_B33, type code %, sha256 36161abf7ae35139…

55: PHASE MOB_B33 % 2 1 1 !
56: CONST MOB_B33 : MO% VA : B% VA : !

MoB-20Tak.tdb: MOB_B33, type code %, sha256 3d8f0c60fb6fc085…

67: PHASE MOB_B33 % 2 1 1 !
68: CONST MOB_B33 : MO : B : !

Example references (5 of 5; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
cited as the source of values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01258-5 M. Morishita, K. Koyama, S. Yagi, G. Zhang, Calculated phase diagram of the Ni–Mo–B ternary system, Journal of Alloys and Compounds 314, 212-218 (2001).
cited as the source of values for this phase

MOB_BG (B–Mo)

Id: phase:b-mo:mob-bg; status assigned
Structure: MoB · B_g · tI16 · I4_1/amd (141); type st:b-g-mob-ti16; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–2454.33 K, x(B) 0.48305–0.50165
Literature: 18 values (18 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:b-mo:mob-bg
paper: paper:10.1016/j.jallcom.2015.09.158:αMoB
tdb: tdb:MoB-16Wit.tdb:MOB_BG

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

MoB-16Wit.tdb: MOB_BG, type code %, sha256 36161abf7ae35139…

50: PHASE MOB_BG % 2 1 1 !
51: CONST MOB_BG : MO% VA : B% VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
cited as the source of values for this phase
doi:10.1021/j100519a008 Edmund Storms, Barbara Mueller, Phase relations and thermodynamic properties of transition metal borides. I. The molybdenum-boron system and elemental boron., J. Phys. Chem. 81, 318-324 (1977).
cited as the source of values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
cited as the source of values for this phase

MOB2_C32 (B–Mo)

Id: phase:b-mo:mob2-c32; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:stoichiometry_contradicts_C32; stoichiometry_contradicts_C32:MoB-91Pan-LB.tdb
Candidate (literature_printed): AlB2 · hP3 — printed with a label mapped to this phase
Candidate (name_token): AlB2 · C32 · hP3 · P6/mmm (191) — Strukturbericht/word 'C32' in the TDB name
Candidate (sgte_mmc2): AlB2 · C32 · hP3 · P6/mmm (191) — Hallstedt 2025 mmc2 row for MOB2_C32: Mo19B31
Candidate (sgte_mmc2): AlB2 · C32 · hP3 · P6/mmm (191) — Hallstedt 2025 mmc2 row for MOB2_C32: MoB2
Candidate (tdb_comment): AlB2 · hP3 · P6/mmm — MoB-05Yan.tdb: 'Prototype AlB2 (hP3, P6/mmm)'
Candidate (tdb_comment): AlB2 · hP3 · P6/mmm — MoB-16Wit.tdb: 'Prototype AlB2 (hP3, P6/mmm)'
Candidate (tdb_comment): AlB2 · hP3 · P6/mmm — MoB-91Pan-LB.tdb: 'Prototype AlB2 (hP3, P6/mmm)'
Stability: stable in 3 of 3 calculated diagram(s): 1764.31–2653.79 K, x(B) 0.61453–0.66137
Literature: 25 values (25 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-mo:mob2-c32
paper: paper:10.1016/j.jallcom.2015.09.158:MoB2
tdb: tdb:MoB-05Yan.tdb:MOB2_C32, tdb:MoB-16Wit.tdb:MOB2_C32, tdb:MoB-91Pan-LB.tdb:MOB2_C32

TDB models of MOB2_C32 (3): PHASE and CONSTITUENT statements as written

MoB-05Yan.tdb: MOB2_C32, type code %, sha256 70d1d12bc57b9f23…

59: PHASE MOB2_C32 % 2 1 2 !
60: CONST MOB2_C32 : MO : B% VA : !

MoB-16Wit.tdb: MOB2_C32, type code %, sha256 36161abf7ae35139…

60: PHASE MOB2_C32 % 2 1 2 !
61: CONST MOB2_C32 : MO% B : MO B% : !

MoB-91Pan-LB.tdb: MOB2_C32, type code %, sha256 ad22665acf03099e…

57: PHASE MOB2_C32 % 2 19 31 !
58: CONST MOB2_C32 : MO : B : !

Example references (5 of 5; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
cited as the source of values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
cited as the source of values for this phase
doi:10.1021/j100519a008 Edmund Storms, Barbara Mueller, Phase relations and thermodynamic properties of transition metal borides. I. The molybdenum-boron system and elemental boron., J. Phys. Chem. 81, 318-324 (1977).
cited as the source of values for this phase

MOB2_D8I (B–Mo)

Id: phase:b-mo:mob2-d8i; status needs_review
No structure assigned. Why: stoichiometry_contradicts_D8_i:MoB-20Tak.tdb
Candidate (dft_mp): R-3m (166) — on-hull MP B2Mo at x(MO)=0.3333
Candidate (dft_oqmd): R-3m (166) — on-hull OQMD B2 Mo1 at x(MO)=0.3333
Candidate (name_token): Mo2B5 · D8_i · hR7 · R-3m (166) — Strukturbericht/word 'D8I' in the TDB name
Candidate (sgte_mmc2): Mo2B5 · D8_i · hR7 · R-3m (166) — Hallstedt 2025 mmc2 row for MOB2_D8I: MoB2/Mo2B5
Candidate (tdb_comment): Mo2B5 (or MoB2) · hR6 · R-3m — MoB-20Tak.tdb: 'Prototype Mo2B5 (or MoB2) (hR6, R-3m)'
Stoichiometry: B 0.6667, Mo 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 300–2423.32 K, x(B) 0.66667–0.66667
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:b-mo:mob2-d8i
tdb: tdb:MoB-20Tak.tdb:MOB2_D8I

TDB models of MOB2_D8I (1): PHASE and CONSTITUENT statements as written

MoB-20Tak.tdb: MOB2_D8I, type code %, sha256 3d8f0c60fb6fc085…

77: PHASE MOB2_D8I % 2 1 2 !
78: CONST MOB2_D8I : MO : B : !

Example references (1 of 1; assessments first):

doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase

MOB4 (B–Mo)

Id: phase:b-mo:mob4; status assigned
Structure: MoB4 · hP16 · P6_3/mmc (194); type st:mob4-hp16; 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): 300–2087.99 K, x(B) 0.8–0.81156
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:b-mo:mob4
paper: paper:10.1016/j.jallcom.2015.09.158:Mo1-xB3
tdb: tdb:MoB-05Yan.tdb:MOB4, tdb:MoB-09Yam.tdb:MOB4, tdb:MoB-16Wit.tdb:MOB4, tdb:MoB-20Tak.tdb:MOB4, tdb:MoB-91Pan-LB.tdb:MOB4

TDB models of MOB4 (5): PHASE and CONSTITUENT statements as written

MoB-05Yan.tdb: MOB4, type code %, sha256 70d1d12bc57b9f23…

69: PHASE MOB4 % 2 1 4 !
70: CONST MOB4 : MO : B : !

MoB-09Yam.tdb: MOB4, type code %, sha256 cb515d628eb00bec…

84: PHASE MOB4 % 2 1 4 !
85: CONST MOB4 : MO : B : !

MoB-16Wit.tdb: MOB4, type code %, sha256 36161abf7ae35139…

70: PHASE MOB4 % 2 1 4 !
71: CONST MOB4 : MO% VA : B% VA : !

MoB-20Tak.tdb: MOB4, type code %, sha256 3d8f0c60fb6fc085…

82: PHASE MOB4 % 2 1 4 !
83: CONST MOB4 : MO : B : !

MoB-91Pan-LB.tdb: MOB4, type code %, sha256 ad22665acf03099e…

67: PHASE MOB4 % 2 1 4 !
68: CONST MOB4 : MO : B : !

Example references (5 of 5; assessments first):

doi:10.1016/j.jallcom.2015.09.158 V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
assessment that models this phase; reports values for this phase
doi:10.2320/jinstmet.73.180 Kenta Yamada, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Mo-Nb-B Ternary Phase Diagram, J. Japan Inst. Metals 73, 180-188 (2009).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.intermet.2004.06.007 Y. Yang, Y.A. Chang, Thermodynamic modeling of the Mo–Si–B system, Intermetallics 13, 121-128 (2005).
assessment that models this phase
doi:10.2355/tetsutohagane.TETSU-2019-097 K. Takahashi, K. Ishikawa, M. Fujioka, M. Enoki, H. Ohtani, Tetsu-to-Hagane, 106, 310-20(2020).
assessment that models this phase
doi:10.1016/0364-5916(81)90037-7 K.E. Spear, M.S. Wang, Thermodynamic modelling of the molybdenumeboron system, Calphad 5 (2) (1981) 109e113.
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}
}