Mn–Zr phases

8 phases (tier A 7, liquid 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 · Mn–Zr system page · Markdown · field reference

Phases of the Mn–Zr system (8)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:mn-zr:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 1060.11–3999.1 K, x(Zr) 0–1	5	4
C14_LAVES phase:mn-zr:c14-laves	MgZn2 · C14 · hP12 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1764.95 K, x(Zr) 0.24426–0.34961	4	2
CBCC_A12 phase:mn-zr:cbcc-a12	alpha-Mn · A12 · cI58 · I-43m (217)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–1005 K, x(Zr) 0–0.00291	1	4
CUB_A13 phase:mn-zr:cub-a13	beta-Mn · A13 · cP20 · P4_132 (213)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 975.45–1474.65 K, x(Zr) 0–0.0184	3	4
FCC_A1 phase:mn-zr:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 1317.15–1508.44 K, x(Zr) 0–0.01172	1	4
HCP_A3 phase:mn-zr:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–1484 K, x(Zr) 0.97296–1	1	4
LIQUID phase:mn-zr:liquid	liquid	liquid	stable in 4 of 4 calculated diagram(s): 1363–4000 K, x(Zr) 0–1	3	4
MN2ZR_C14 phase:mn-zr:mn2zr-c14	MgZn2 · C14 · hP12 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1729.36 K, x(Zr) 0.17914–0.54003	0	2

BCC_A2 (Mn–Zr)

Id: phase:mn-zr: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 4 of 4 calculated diagram(s): 1060.11–3999.1 K, x(Zr) 0–1
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:mn-zr:bcc-a2
paper: paper:sha256-85fd53a1a176b694:bcc-A2
tdb: tdb:MnZr-20Kup.tdb:BCC_A2, tdb:MnZr-21Si.tdb:BCC_A2, tdb:MnZr-97Fla-LB.tdb:BCC_A2, tdb:MnZr-98Hac.tdb:BCC_A2

TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written

MnZr-20Kup.tdb: BCC_A2, type code %B, sha256 5951de6545400c39…

36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : MN% ZR% : VA : !

MnZr-21Si.tdb: BCC_A2, type code %B, sha256 41335ff0a06e75c7…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : MN% ZR% : VA : !

MnZr-97Fla-LB.tdb: BCC_A2, type code %B, sha256 ef898aa152127b16…

44: PHASE BCC_A2 %B 2 1 3 !
45: CONST BCC_A2 : MN% ZR% : VA : !

MnZr-98Hac.tdb: BCC_A2, type code %B, sha256 951a3564d389c98a…

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

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2020.101745 A. Kuprava, I. Saenko, O. Fabrichnaya, Calphad, 68, 101745(2020).
assessment that models this phase
doi:10.1016/j.calphad.2020.102243 X. Si, S. Liu, X. Li, C. Shi, Y. Liu, Y. Du, Z. Zhang, Calphad, 72, 102243(2021).
assessment that models this phase
doi:10.3139/ijmr-1997-0099 H. Flandorfer, J. Groebner, A. Stamou, N. Hassiotis, A. Saccone, P. Rogl, R. Wouters, H. Seifert, D. Maccio, R. Ferro, G. Haidemenopoulus, L. Delaey, G. Effenberg, Z. Metallkd., 88, 529-38(1997).
assessment that models this phase

C14_LAVES (Mn–Zr)

Id: phase:mn-zr:c14-laves; status assigned
Structure: MgZn2 · C14 · hP12 · P6_3/mmc (194); type st:c14-mgzn2-hp12; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in MnZr-20Kup.tdb also describes the disordered state
Caveat: partitioned order/disorder model in MnZr-21Si.tdb also describes the disordered state
Stability: stable in 2 of 2 calculated diagram(s): 300–1764.95 K, x(Zr) 0.24426–0.34961
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:mn-zr:c14-laves
paper: paper:sha256-85fd53a1a176b694:Mn2Zr
tdb: tdb:MnZr-20Kup.tdb:C14_LAVES, tdb:MnZr-21Si.tdb:C14_LAVES

TDB models of C14_LAVES (2): PHASE and CONSTITUENT statements as written

MnZr-20Kup.tdb: C14_LAVES, type code %, sha256 5951de6545400c39…

56: PHASE C14_LAVES % 2 2 1 !
57: CONST C14_LAVES : MN% ZR : MN ZR% : !

MnZr-21Si.tdb: C14_LAVES, type code %, sha256 41335ff0a06e75c7…

54: PHASE C14_LAVES % 2 2 1 !
55: CONST C14_LAVES : MN% ZR : MN ZR% : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2020.101745 A. Kuprava, I. Saenko, O. Fabrichnaya, Calphad, 68, 101745(2020).
assessment that models this phase
doi:10.1016/j.calphad.2020.102243 X. Si, S. Liu, X. Li, C. Shi, Y. Liu, Y. Du, Z. Zhang, Calphad, 72, 102243(2021).
assessment that models this phase

CBCC_A12 (Mn–Zr)

Id: phase:mn-zr: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
Stability: stable in 4 of 4 calculated diagram(s): 300–1005 K, x(Zr) 0–0.00291
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:mn-zr:cbcc-a12
paper: paper:sha256-85fd53a1a176b694:cbcc-A12
tdb: tdb:MnZr-20Kup.tdb:CBCC_A12, tdb:MnZr-21Si.tdb:CBCC_A12, tdb:MnZr-97Fla-LB.tdb:CBCC_A12, tdb:MnZr-98Hac.tdb:CBCC_A12

TDB models of CBCC_A12 (4): PHASE and CONSTITUENT statements as written

MnZr-20Kup.tdb: CBCC_A12, type code %A, sha256 5951de6545400c39…

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

MnZr-21Si.tdb: CBCC_A12, type code %A, sha256 41335ff0a06e75c7…

44: PHASE CBCC_A12 %A 2 1 1 !
45: CONST CBCC_A12 : MN% ZR : VA : !

MnZr-97Fla-LB.tdb: CBCC_A12, type code %A, sha256 ef898aa152127b16…

54: PHASE CBCC_A12 %A 2 1 1 !
55: CONST CBCC_A12 : MN : VA : !

MnZr-98Hac.tdb: CBCC_A12, type code %A, sha256 951a3564d389c98a…

42: PHASE CBCC_A12 %A 2 1 1 !
43: CONST CBCC_A12 : MN% ZR : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2020.101745 A. Kuprava, I. Saenko, O. Fabrichnaya, Calphad, 68, 101745(2020).
assessment that models this phase
doi:10.1016/j.calphad.2020.102243 X. Si, S. Liu, X. Li, C. Shi, Y. Liu, Y. Du, Z. Zhang, Calphad, 72, 102243(2021).
assessment that models this phase
doi:10.3139/ijmr-1997-0099 H. Flandorfer, J. Groebner, A. Stamou, N. Hassiotis, A. Saccone, P. Rogl, R. Wouters, H. Seifert, D. Maccio, R. Ferro, G. Haidemenopoulus, L. Delaey, G. Effenberg, Z. Metallkd., 88, 529-38(1997).
assessment that models this phase

CUB_A13 (Mn–Zr)

Id: phase:mn-zr: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
Stability: stable in 4 of 4 calculated diagram(s): 975.45–1474.65 K, x(Zr) 0–0.0184
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:mn-zr:cub-a13
paper: paper:sha256-85fd53a1a176b694:cub-A13
tdb: tdb:MnZr-20Kup.tdb:CUB_A13, tdb:MnZr-21Si.tdb:CUB_A13, tdb:MnZr-97Fla-LB.tdb:CUB_A13, tdb:MnZr-98Hac.tdb:CUB_A13

TDB models of CUB_A13 (4): PHASE and CONSTITUENT statements as written

MnZr-20Kup.tdb: CUB_A13, type code %, sha256 5951de6545400c39…

51: PHASE CUB_A13 % 2 1 1 !
52: CONST CUB_A13 : MN% ZR : VA : !

MnZr-21Si.tdb: CUB_A13, type code %, sha256 41335ff0a06e75c7…

49: PHASE CUB_A13 % 2 1 1 !
50: CONST CUB_A13 : MN% ZR : VA : !

MnZr-97Fla-LB.tdb: CUB_A13, type code %, sha256 ef898aa152127b16…

59: PHASE CUB_A13 % 2 1 1 !
60: CONST CUB_A13 : MN : VA : !

MnZr-98Hac.tdb: CUB_A13, type code %, sha256 951a3564d389c98a…

47: PHASE CUB_A13 % 2 1 1 !
48: CONST CUB_A13 : MN% ZR : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2020.101745 A. Kuprava, I. Saenko, O. Fabrichnaya, Calphad, 68, 101745(2020).
assessment that models this phase
doi:10.1016/j.calphad.2020.102243 X. Si, S. Liu, X. Li, C. Shi, Y. Liu, Y. Du, Z. Zhang, Calphad, 72, 102243(2021).
assessment that models this phase
doi:10.3139/ijmr-1997-0099 H. Flandorfer, J. Groebner, A. Stamou, N. Hassiotis, A. Saccone, P. Rogl, R. Wouters, H. Seifert, D. Maccio, R. Ferro, G. Haidemenopoulus, L. Delaey, G. Effenberg, Z. Metallkd., 88, 529-38(1997).
assessment that models this phase

FCC_A1 (Mn–Zr)

Id: phase:mn-zr: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 4 of 4 calculated diagram(s): 1317.15–1508.44 K, x(Zr) 0–0.01172
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:mn-zr:fcc-a1
paper: paper:sha256-85fd53a1a176b694:fcc-A1
tdb: tdb:MnZr-20Kup.tdb:FCC_A1, tdb:MnZr-21Si.tdb:FCC_A1, tdb:MnZr-97Fla-LB.tdb:FCC_A1, tdb:MnZr-98Hac.tdb:FCC_A1

TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written

MnZr-20Kup.tdb: FCC_A1, type code %A, sha256 5951de6545400c39…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : MN% ZR : VA : !

MnZr-21Si.tdb: FCC_A1, type code %A, sha256 41335ff0a06e75c7…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : MN% ZR : VA : !

MnZr-97Fla-LB.tdb: FCC_A1, type code %A, sha256 ef898aa152127b16…

39: PHASE FCC_A1 %A 2 1 1 !
40: CONST FCC_A1 : MN% ZR : VA : !

MnZr-98Hac.tdb: FCC_A1, type code %A, sha256 951a3564d389c98a…

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

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2020.101745 A. Kuprava, I. Saenko, O. Fabrichnaya, Calphad, 68, 101745(2020).
assessment that models this phase
doi:10.1016/j.calphad.2020.102243 X. Si, S. Liu, X. Li, C. Shi, Y. Liu, Y. Du, Z. Zhang, Calphad, 72, 102243(2021).
assessment that models this phase
doi:10.3139/ijmr-1997-0099 H. Flandorfer, J. Groebner, A. Stamou, N. Hassiotis, A. Saccone, P. Rogl, R. Wouters, H. Seifert, D. Maccio, R. Ferro, G. Haidemenopoulus, L. Delaey, G. Effenberg, Z. Metallkd., 88, 529-38(1997).
assessment that models this phase

HCP_A3 (Mn–Zr)

Id: phase:mn-zr: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 4 of 4 calculated diagram(s): 300–1484 K, x(Zr) 0.97296–1
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:mn-zr:hcp-a3
paper: paper:sha256-85fd53a1a176b694:hcp-A3
tdb: tdb:MnZr-20Kup.tdb:HCP_A3, tdb:MnZr-21Si.tdb:HCP_A3, tdb:MnZr-97Fla-LB.tdb:HCP_A3, tdb:MnZr-98Hac.tdb:HCP_A3

TDB models of HCP_A3 (4): PHASE and CONSTITUENT statements as written

MnZr-20Kup.tdb: HCP_A3, type code %, sha256 5951de6545400c39…

41: PHASE HCP_A3 % 2 1 0.5 !
42: CONST HCP_A3 : MN ZR% : VA : !

MnZr-21Si.tdb: HCP_A3, type code %, sha256 41335ff0a06e75c7…

39: PHASE HCP_A3 % 2 1 0.5 !
40: CONST HCP_A3 : MN ZR% : VA : !

MnZr-97Fla-LB.tdb: HCP_A3, type code %, sha256 ef898aa152127b16…

49: PHASE HCP_A3 % 2 1 0.5 !
50: CONST HCP_A3 : MN ZR% : VA : !

MnZr-98Hac.tdb: HCP_A3, type code %, sha256 951a3564d389c98a…

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

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2020.101745 A. Kuprava, I. Saenko, O. Fabrichnaya, Calphad, 68, 101745(2020).
assessment that models this phase
doi:10.1016/j.calphad.2020.102243 X. Si, S. Liu, X. Li, C. Shi, Y. Liu, Y. Du, Z. Zhang, Calphad, 72, 102243(2021).
assessment that models this phase
doi:10.3139/ijmr-1997-0099 H. Flandorfer, J. Groebner, A. Stamou, N. Hassiotis, A. Saccone, P. Rogl, R. Wouters, H. Seifert, D. Maccio, R. Ferro, G. Haidemenopoulus, L. Delaey, G. Effenberg, Z. Metallkd., 88, 529-38(1997).
assessment that models this phase

LIQUID (Mn–Zr)

Id: phase:mn-zr:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 1363–4000 K, x(Zr) 0–1
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:mn-zr:liquid
paper: paper:sha256-85fd53a1a176b694:Liquid
tdb: tdb:MnZr-20Kup.tdb:LIQUID, tdb:MnZr-21Si.tdb:LIQUID, tdb:MnZr-97Fla-LB.tdb:LIQUID, tdb:MnZr-98Hac.tdb:LIQUID

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

MnZr-20Kup.tdb: LIQUID, type code %, sha256 5951de6545400c39…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : MN ZR : !

MnZr-21Si.tdb: LIQUID, type code %, sha256 41335ff0a06e75c7…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : MN ZR : !

MnZr-97Fla-LB.tdb: LIQUID, type code %, sha256 ef898aa152127b16…

34: PHASE LIQUID:L % 1 1 !
35: CONST LIQUID:L : MN ZR : !

MnZr-98Hac.tdb: LIQUID, type code %, sha256 951a3564d389c98a…

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

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2020.101745 A. Kuprava, I. Saenko, O. Fabrichnaya, Calphad, 68, 101745(2020).
assessment that models this phase
doi:10.1016/j.calphad.2020.102243 X. Si, S. Liu, X. Li, C. Shi, Y. Liu, Y. Du, Z. Zhang, Calphad, 72, 102243(2021).
assessment that models this phase
doi:10.3139/ijmr-1997-0099 H. Flandorfer, J. Groebner, A. Stamou, N. Hassiotis, A. Saccone, P. Rogl, R. Wouters, H. Seifert, D. Maccio, R. Ferro, G. Haidemenopoulus, L. Delaey, G. Effenberg, Z. Metallkd., 88, 529-38(1997).
assessment that models this phase

MN2ZR_C14 (Mn–Zr)

Id: phase:mn-zr:mn2zr-c14; status assigned
Structure: MgZn2 · C14 · hP12 · P6_3/mmc (194); type st:c14-mgzn2-hp12; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in MnZr-98Hac.tdb also describes the disordered state
Stability: stable in 2 of 2 calculated diagram(s): 300–1729.36 K, x(Zr) 0.17914–0.54003
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mn-zr:mn2zr-c14
tdb: tdb:MnZr-97Fla-LB.tdb:MN2ZR_C14, tdb:MnZr-98Hac.tdb:MN2ZR_C14

TDB models of MN2ZR_C14 (2): PHASE and CONSTITUENT statements as written

MnZr-97Fla-LB.tdb: MN2ZR_C14, type code %, sha256 ef898aa152127b16…

64: PHASE MN2ZR_C14 % 2 2 1 !
65: CONST MN2ZR_C14 : MN : ZR% VA : !

MnZr-98Hac.tdb: MN2ZR_C14, type code %, sha256 951a3564d389c98a…

52: PHASE MN2ZR_C14 % 2 2 1 !
53: CONST MN2ZR_C14 : MN% ZR : MN ZR% : !

Example references (1 of 1; assessments first):

doi:10.3139/ijmr-1997-0099 H. Flandorfer, J. Groebner, A. Stamou, N. Hassiotis, A. Saccone, P. Rogl, R. Wouters, H. Seifert, D. Maccio, R. Ferro, G. Haidemenopoulus, L. Delaey, G. Effenberg, Z. Metallkd., 88, 529-38(1997).
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}
}