Bi–Mn phases

9 phases (tier A 7, liquid 1, needs_review 1); 8 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 · Bi–Mn system page · Markdown · field reference

Phases of the Bi–Mn system (9)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
RHOMBOHEDRAL_A7 phase:bi-mn:a7-rhombohedral	alpha-As · A7 · hR2 · R-3m (166)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–544.55 K, x(Mn) 0–0	3	2
BCC_A2 phase:bi-mn:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1396.03–2499.18 K, x(Mn) 0.99942–1	4	2
BIMN_B81 phase:bi-mn:bimn-b81	NiAs · B8_1 · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–631.48 K, x(Mn) 0.5–0.5	7	2
BIMN_B82 phase:bi-mn:bimn-b82		needs_review	stable in 2 of 2 calculated diagram(s): 609.45–719.06 K, x(Mn) 0.5–0.51923	6	2
CBCC_A12 phase:bi-mn:cbcc-a12	alpha-Mn · A12 · cI58 · I-43m (217)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–980 K, x(Mn) 1–1	6	2
CUB_A13 phase:bi-mn:cub-a13	beta-Mn · A13 · cP20 · P4_132 (213)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 980–1404.99 K, x(Mn) 1–1	4	2
FCC_A1 phase:bi-mn:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1250–1411.03 K, x(Mn) 0.49–1	2	2
HCP_A3 phase:bi-mn:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 2 calculated diagram(s)	0	2
LIQUID phase:bi-mn:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 538.03–2500 K, x(Mn) 0–1	16	2

RHOMBOHEDRAL_A7 (Bi–Mn)

Id: phase:bi-mn:a7-rhombohedral; status assigned
Structure: alpha-As · A7 · hR2 · R-3m (166); type st:a7-alpha-as-hr2; tier A: standard phase name; confidence high
Stoichiometry: Bi 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–544.55 K, x(Mn) 0–0
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:bi-mn:a7-rhombohedral, corpus:phase:bi-mn:rhombohedral-a7
paper: paper:10.1016/j.jnucmat.2011.02.021:(Bi)
tdb: tdb:BiMn-11Oik.tdb:RHOMBOHEDRAL_A7, tdb:BiMn-11Wan.tdb:RHOMBOHEDRAL_A7

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

BiMn-11Oik.tdb: RHOMBOHEDRAL_A7, type code %, sha256 bcf56fe3f5fb3992…

47: PHASE RHOMBOHEDRAL_A7 % 1 1 !
48: CONST RHOMBOHEDRAL_A7 : BI : !

BiMn-11Wan.tdb: RHOMBOHEDRAL_A7, type code %, sha256 dbc9df9f126c74da…

42: PHASE RHOMBOHEDRAL_A7 % 1 1 !
43: CONST RHOMBOHEDRAL_A7 : BI : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase; reports values for this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase
doi:10.1007/bf02700456 Ron G. Pirich, G. Busch, W. Poit, D. J. Larson, The Bi-MnBi eutectic region of the Bi-Mn phase diagram, Metall Trans A 11, 193-194 (1980).
cited as the source of values for this phase

BCC_A2 (Bi–Mn)

Id: phase:bi-mn: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): 1396.03–2499.18 K, x(Mn) 0.99942–1
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:bi-mn:bcc-a2
paper: paper:10.1016/j.jnucmat.2011.02.021:δMn
tdb: tdb:BiMn-11Oik.tdb:BCC_A2, tdb:BiMn-11Wan.tdb:BCC_A2

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

BiMn-11Oik.tdb: BCC_A2, type code %B, sha256 bcf56fe3f5fb3992…

37: PHASE BCC_A2 %B 2 1 3 !
38: CONST BCC_A2 : BI MN% : VA : !

BiMn-11Wan.tdb: BCC_A2, type code %B, sha256 dbc9df9f126c74da…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : BI MN% : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase; reports values for this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase

BIMN_B81 (Bi–Mn)

Id: phase:bi-mn:bimn-b81; status assigned
Structure: NiAs · B8_1 · hP4 · P6_3/mmc (194); type st:b8-1-nias-hp4; tier A: standard phase name; confidence high
Stoichiometry: Bi 0.5000, Mn 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–631.48 K, x(Mn) 0.5–0.5
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:bi-mn:bimn-b81
paper: paper:10.1016/j.jnucmat.2011.02.021:αBiMn
tdb: tdb:BiMn-11Oik.tdb:BIMN_B81, tdb:BiMn-11Wan.tdb:BIMN_B81

TDB models of BIMN_B81 (2): PHASE and CONSTITUENT statements as written

BiMn-11Oik.tdb: BIMN_B81, type code %A, sha256 bcf56fe3f5fb3992…

62: PHASE BIMN_B81 %A 2 1 1 !
63: CONST BIMN_B81 : BI : MN : !

BiMn-11Wan.tdb: BIMN_B81, type code %, sha256 dbc9df9f126c74da…

57: PHASE BIMN_B81 % 2 1 1 !
58: CONST BIMN_B81 : BI : MN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase; reports values for this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase
doi:10.1007/bf02700456 Ron G. Pirich, G. Busch, W. Poit, D. J. Larson, The Bi-MnBi eutectic region of the Bi-Mn phase diagram, Metall Trans A 11, 193-194 (1980).
cited as the source of values for this phase

BIMN_B82 (Bi–Mn)

Id: phase:bi-mn:bimn-b82; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:models_disagree_on_composition; models_disagree_on_composition; stoichiometry_contradicts_B8_2:BiMn-11Oik.tdb; stoichiometry_contradicts_B8_2:BiMn-11Wan.tdb
Candidate (literature_printed): InNi2 · hP6 — printed with a label mapped to this phase
Candidate (name_token): InNi2 · B8_2 · hP6 · P6_3/mmc (194) — Strukturbericht/word 'B82' in the TDB name
Candidate (sgte_mmc2): InNi2 · B8_2 · hP6 · P6_3/mmc (194) — Hallstedt 2025 mmc2 row for BIMN_B82: BiMn (high T)
Candidate (tdb_comment): InNi2 · hP6 · P6_3/mmc — BiMn-11Oik.tdb: 'Prototype InNi2 (hP6, P6_3/mmc), beta'
Candidate (tdb_comment): InNi2 · hP6 · P6_3/mmc — BiMn-11Wan.tdb: 'Prototype InNi2 (hP6, P6_3/mmc), beta'
Stability: stable in 2 of 2 calculated diagram(s): 609.45–719.06 K, x(Mn) 0.5–0.51923
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:bi-mn:bimn-b82
paper: paper:10.1016/j.jnucmat.2011.02.021:βBiMn
tdb: tdb:BiMn-11Oik.tdb:BIMN_B82, tdb:BiMn-11Wan.tdb:BIMN_B82

TDB models of BIMN_B82 (2): PHASE and CONSTITUENT statements as written

BiMn-11Oik.tdb: BIMN_B82, type code %A, sha256 bcf56fe3f5fb3992…

67: PHASE BIMN_B82 %A 2 1 1 !
68: CONST BIMN_B82 : BI : MN : !

BiMn-11Wan.tdb: BIMN_B82, type code %, sha256 dbc9df9f126c74da…

62: PHASE BIMN_B82 % 2 1 1.08 !
63: CONST BIMN_B82 : BI : MN : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase; reports values for this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase

CBCC_A12 (Bi–Mn)

Id: phase:bi-mn:cbcc-a12; status assigned
Structure: alpha-Mn · A12 · cI58 · I-43m (217); type st:a12-alpha-mn-ci58; tier A: standard phase name; confidence high
Stoichiometry: Mn 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–980 K, x(Mn) 1–1
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:bi-mn:cbcc-a12
paper: paper:10.1016/j.jnucmat.2011.02.021:αMn
tdb: tdb:BiMn-11Oik.tdb:CBCC_A12, tdb:BiMn-11Wan.tdb:CBCC_A12

TDB models of CBCC_A12 (2): PHASE and CONSTITUENT statements as written

BiMn-11Oik.tdb: CBCC_A12, type code %A, sha256 bcf56fe3f5fb3992…

52: PHASE CBCC_A12 %A 2 1 1 !
53: CONST CBCC_A12 : MN : VA : !

BiMn-11Wan.tdb: CBCC_A12, type code %A, sha256 dbc9df9f126c74da…

47: PHASE CBCC_A12 %A 2 1 1 !
48: CONST CBCC_A12 : MN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase; reports values for this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase

CUB_A13 (Bi–Mn)

Id: phase:bi-mn:cub-a13; status assigned
Structure: beta-Mn · A13 · cP20 · P4_132 (213); type st:a13-beta-mn-cp20; tier A: standard phase name; confidence high
Stoichiometry: Mn 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 980–1404.99 K, x(Mn) 1–1
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:bi-mn:cub-a13
paper: paper:10.1016/j.jnucmat.2011.02.021:βMn
tdb: tdb:BiMn-11Oik.tdb:CUB_A13, tdb:BiMn-11Wan.tdb:CUB_A13

TDB models of CUB_A13 (2): PHASE and CONSTITUENT statements as written

BiMn-11Oik.tdb: CUB_A13, type code %, sha256 bcf56fe3f5fb3992…

57: PHASE CUB_A13 % 2 1 1 !
58: CONST CUB_A13 : MN : VA : !

BiMn-11Wan.tdb: CUB_A13, type code %, sha256 dbc9df9f126c74da…

52: PHASE CUB_A13 % 2 1 1 !
53: CONST CUB_A13 : MN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase; reports values for this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase

FCC_A1 (Bi–Mn)

Id: phase:bi-mn: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 2 of 2 calculated diagram(s): 1250–1411.03 K, x(Mn) 0.49–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:bi-mn:fcc-a1
paper: paper:10.1016/j.jnucmat.2011.02.021:γMn
tdb: tdb:BiMn-11Oik.tdb:FCC_A1, tdb:BiMn-11Wan.tdb:FCC_A1

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

BiMn-11Oik.tdb: FCC_A1, type code %A, sha256 bcf56fe3f5fb3992…

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

BiMn-11Wan.tdb: FCC_A1, type code %A, sha256 dbc9df9f126c74da…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : BI MN% : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase; reports values for this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase

HCP_A3 (Bi–Mn)

Id: phase:bi-mn:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: not stable in 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:bi-mn:hcp-a3
tdb: tdb:BiMn-11Oik.tdb:HCP_A3, tdb:BiMn-11Wan.tdb:HCP_A3

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

BiMn-11Oik.tdb: HCP_A3, type code %A, sha256 bcf56fe3f5fb3992…

42: PHASE HCP_A3 %A 2 1 0.5 !
43: CONST HCP_A3 : BI MN : VA: !

BiMn-11Wan.tdb: HCP_A3, type code %A, sha256 dbc9df9f126c74da…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : BI MN : VA: !

Example references (2 of 2; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase

LIQUID (Bi–Mn)

Id: phase:bi-mn:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 538.03–2500 K, x(Mn) 0–1
Literature: 16 values (16 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:bi-mn:liquid
paper: paper:10.1016/j.jnucmat.2011.02.021:L, paper:10.1016/j.jnucmat.2011.02.021:L1, paper:10.1016/j.jnucmat.2011.02.021:L2
tdb: tdb:BiMn-11Oik.tdb:LIQUID, tdb:BiMn-11Wan.tdb:LIQUID

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

BiMn-11Oik.tdb: LIQUID, type code %, sha256 bcf56fe3f5fb3992…

27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : BI MN : !

BiMn-11Wan.tdb: LIQUID, type code %, sha256 dbc9df9f126c74da…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : BI MN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jnucmat.2011.02.021 C.P. Wang, W.J. Yu, Z.S. Li, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Bi–U and Bi–Mn systems, Journal of Nuclear Materials 412, 66-71 (2011).
assessment that models this phase; reports values for this phase
doi:10.2320/matertrans.M2011229 K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai, Mater. Trans. (JIM), 52, 2032-39(2011).
assessment that models this phase
doi:10.1007/bf02700456 Ron G. Pirich, G. Busch, W. Poit, D. J. Larson, The Bi-MnBi eutectic region of the Bi-Mn phase diagram, Metall Trans A 11, 193-194 (1980).
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}
}