Mn–Nd phases

10 phases (tier A 8, tier C 1, liquid 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 · Mn–Nd system page · Markdown · field reference

Phases of the Mn–Nd system (10)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:mn-nd:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 978.09–1523.96 K, x(Nd) 0–1	7	1
CBCC_A12 phase:mn-nd:cbcc-a12	alpha-Mn · A12 · cI58 · I-43m (217)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–980 K, x(Nd) 0–0	0	1
CUB_A13 phase:mn-nd:cub-a13	beta-Mn · A13 · cP20 · P4_132 (213)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 980–1474.99 K, x(Nd) 0–0	5	1
DHCP phase:mn-nd:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1283 K, x(Nd) 0.96115–1	15	1
FCC_A1 phase:mn-nd:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1352.96–1474.99 K, x(Nd) 0–0.001	6	1
HCP_A3 phase:mn-nd:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
LIQUID phase:mn-nd:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 969.47–2500 K, x(Nd) 0–1	37	1
MN17ND2 phase:mn-nd:mn17nd2	Th2Zn17 · hR19 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1296.57 K, x(Nd) 0.10526–0.10526	9	1
MN23ND6_D8A phase:mn-nd:mn23nd6-d8a	Mn23Th6 · D8_a · cF116 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 753.03–1211.54 K, x(Nd) 0.2069–0.2069	14	1
MN2ND_C14 phase:mn-nd:mn2nd-c14	MgZn2 · C14 · hP12 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 853.01–1115.9 K, x(Nd) 0.33333–0.33333	13	1

BCC_A2 (Mn–Nd)

Id: phase:mn-nd: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 1 of 1 calculated diagram(s): 978.09–1523.96 K, x(Nd) 0–1
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:mn-nd:bcc-a2
paper: paper:10.1007/s10973-016-5636-y:β-Nd, paper:10.1007/s10973-016-5636-y:δ-Mn
tdb: tdb:MnNd-16Ron.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

MnNd-16Ron.tdb: BCC_A2, type code %B, sha256 fe6d800f20476b6b…

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

Example references (3 of 3; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.020 P. Lemoine, A. Vernière, J.F. Marêché, B. Malaman, Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds, Journal of Alloys and Compounds 508, 9-13 (2010).
cited as the source of values for this phase
doi:10.1016/j.calphad.2013.07.004 Mostafa A, Gheribi A, Kevorkov D, Mezbahul M, Medraj M. Experimental investigation and first-principle calculations coupled with thermodynamic modeling of the Mn–Nd phase diagram. CALPHAD. 2013;42:27–37.
cited as the source of values for this phase

CBCC_A12 (Mn–Nd)

Id: phase:mn-nd: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 1 of 1 calculated diagram(s): 300–980 K, x(Nd) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:mn-nd:cbcc-a12
tdb: tdb:MnNd-16Ron.tdb:CBCC_A12

TDB models of CBCC_A12 (1): PHASE and CONSTITUENT statements as written

MnNd-16Ron.tdb: CBCC_A12, type code %A, sha256 fe6d800f20476b6b…

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

Example references (1 of 1; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase

CUB_A13 (Mn–Nd)

Id: phase:mn-nd: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 1 of 1 calculated diagram(s): 980–1474.99 K, x(Nd) 0–0
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mn-nd:cub-a13
paper: paper:10.1007/s10973-016-5636-y:β-Mn
tdb: tdb:MnNd-16Ron.tdb:CUB_A13

TDB models of CUB_A13 (1): PHASE and CONSTITUENT statements as written

MnNd-16Ron.tdb: CUB_A13, type code %, sha256 fe6d800f20476b6b…

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

Example references (2 of 2; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.020 P. Lemoine, A. Vernière, J.F. Marêché, B. Malaman, Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds, Journal of Alloys and Compounds 508, 9-13 (2010).
cited as the source of values for this phase

DHCP (Mn–Nd)

Id: phase:mn-nd:dhcp-a3; status assigned
Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type st:a3-alpha-la-hp4; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–1283 K, x(Nd) 0.96115–1
Literature: 15 values (15 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:mn-nd:dhcp-a3, corpus:phase:mn-nd:dhcp
paper: paper:10.1007/s10973-016-5636-y:α-Nd
tdb: tdb:MnNd-16Ron.tdb:DHCP

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

MnNd-16Ron.tdb: DHCP, type code %, sha256 fe6d800f20476b6b…

46: PHASE DHCP % 1 1 !
47: CONST DHCP : MN ND% : !

Example references (3 of 3; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.020 P. Lemoine, A. Vernière, J.F. Marêché, B. Malaman, Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds, Journal of Alloys and Compounds 508, 9-13 (2010).
cited as the source of values for this phase
doi:10.1016/j.calphad.2013.07.004 Mostafa A, Gheribi A, Kevorkov D, Mezbahul M, Medraj M. Experimental investigation and first-principle calculations coupled with thermodynamic modeling of the Mn–Nd phase diagram. CALPHAD. 2013;42:27–37.
cited as the source of values for this phase

FCC_A1 (Mn–Nd)

Id: phase:mn-nd: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 1 of 1 calculated diagram(s): 1352.96–1474.99 K, x(Nd) 0–0.001
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mn-nd:fcc-a1
paper: paper:10.1007/s10973-016-5636-y:γ-Mn
tdb: tdb:MnNd-16Ron.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

MnNd-16Ron.tdb: FCC_A1, type code %A, sha256 fe6d800f20476b6b…

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

Example references (2 of 2; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.020 P. Lemoine, A. Vernière, J.F. Marêché, B. Malaman, Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds, Journal of Alloys and Compounds 508, 9-13 (2010).
cited as the source of values for this phase

HCP_A3 (Mn–Nd)

Id: phase:mn-nd: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 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:mn-nd:hcp-a3
tdb: tdb:MnNd-16Ron.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

MnNd-16Ron.tdb: HCP_A3, type code %A, sha256 fe6d800f20476b6b…

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

Example references (1 of 1; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase

LIQUID (Mn–Nd)

Id: phase:mn-nd:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 969.47–2500 K, x(Nd) 0–1
Literature: 37 values (37 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:mn-nd:liquid
paper: paper:10.1007/s10973-016-5636-y:L, paper:10.1007/s10973-016-5636-y:liquid
tdb: tdb:MnNd-16Ron.tdb:LIQUID

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

MnNd-16Ron.tdb: LIQUID, type code %, sha256 fe6d800f20476b6b…

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

Example references (3 of 3; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.020 P. Lemoine, A. Vernière, J.F. Marêché, B. Malaman, Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds, Journal of Alloys and Compounds 508, 9-13 (2010).
cited as the source of values for this phase
doi:10.1016/j.calphad.2013.07.004 Mostafa A, Gheribi A, Kevorkov D, Mezbahul M, Medraj M. Experimental investigation and first-principle calculations coupled with thermodynamic modeling of the Mn–Nd phase diagram. CALPHAD. 2013;42:27–37.
cited as the source of values for this phase

MN17ND2 (Mn–Nd)

Id: phase:mn-nd:mn17nd2; status assigned
Structure: Th2Zn17 · hR19 · R-3m (166); type st:th2zn17-hr19; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Mn 0.8947, Nd 0.1053
Stability: stable in 1 of 1 calculated diagram(s): 300–1296.57 K, x(Nd) 0.10526–0.10526
Literature: 9 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mn-nd:mn17nd2
paper: paper:10.1007/s10973-016-5636-y:Mn17Nd2
tdb: tdb:MnNd-16Ron.tdb:MN17ND2

TDB models of MN17ND2 (1): PHASE and CONSTITUENT statements as written

MnNd-16Ron.tdb: MN17ND2, type code %, sha256 fe6d800f20476b6b…

61: PHASE MN17ND2 % 2 17 2 !
62: CONST MN17ND2 : MN : ND : !

Example references (2 of 2; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.020 P. Lemoine, A. Vernière, J.F. Marêché, B. Malaman, Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds, Journal of Alloys and Compounds 508, 9-13 (2010).
cited as the source of values for this phase

MN23ND6_D8A (Mn–Nd)

Id: phase:mn-nd:mn23nd6-d8a; status assigned
Structure: Mn23Th6 · D8_a · cF116 · Fm-3m (225); type st:d8-a-mn23th6-cf116; tier A: standard phase name; confidence high
Stoichiometry: Mn 0.7931, Nd 0.2069
Stability: stable in 1 of 1 calculated diagram(s): 753.03–1211.54 K, x(Nd) 0.2069–0.2069
Literature: 14 values (14 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mn-nd:mn23nd6-d8a
paper: paper:10.1007/s10973-016-5636-y:Mn23Nd6
tdb: tdb:MnNd-16Ron.tdb:MN23ND6_D8A

TDB models of MN23ND6_D8A (1): PHASE and CONSTITUENT statements as written

MnNd-16Ron.tdb: MN23ND6_D8A, type code %, sha256 fe6d800f20476b6b…

66: PHASE MN23ND6_D8A % 2 23 6 !
67: CONST MN23ND6_D8A : MN : ND : !

Example references (3 of 3; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.020 P. Lemoine, A. Vernière, J.F. Marêché, B. Malaman, Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds, Journal of Alloys and Compounds 508, 9-13 (2010).
cited as the source of values for this phase
doi:10.1016/j.calphad.2013.07.004 Mostafa A, Gheribi A, Kevorkov D, Mezbahul M, Medraj M. Experimental investigation and first-principle calculations coupled with thermodynamic modeling of the Mn–Nd phase diagram. CALPHAD. 2013;42:27–37.
cited as the source of values for this phase

MN2ND_C14 (Mn–Nd)

Id: phase:mn-nd:mn2nd-c14; status assigned
Structure: MgZn2 · C14 · hP12 · P6_3/mmc (194); type st:c14-mgzn2-hp12; tier A: standard phase name; confidence high
Stoichiometry: Mn 0.6667, Nd 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 853.01–1115.9 K, x(Nd) 0.33333–0.33333
Literature: 13 values (13 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mn-nd:mn2nd-c14
paper: paper:10.1007/s10973-016-5636-y:Mn2Nd
tdb: tdb:MnNd-16Ron.tdb:MN2ND_C14

TDB models of MN2ND_C14 (1): PHASE and CONSTITUENT statements as written

MnNd-16Ron.tdb: MN2ND_C14, type code %, sha256 fe6d800f20476b6b…

71: PHASE MN2ND_C14 % 2 2 1 !
72: CONST MN2ND_C14 : MN : ND : !

Example references (3 of 3; assessments first):

doi:10.1007/s10973-016-5636-y Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.08.020 P. Lemoine, A. Vernière, J.F. Marêché, B. Malaman, Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds, Journal of Alloys and Compounds 508, 9-13 (2010).
cited as the source of values for this phase
doi:10.1016/j.calphad.2013.07.004 Mostafa A, Gheribi A, Kevorkov D, Mezbahul M, Medraj M. Experimental investigation and first-principle calculations coupled with thermodynamic modeling of the Mn–Nd phase diagram. CALPHAD. 2013;42:27–37.
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}
}