Cu–Nd phases

13 phases (tier A 7, tier C 3, liquid 1, needs_review 2); 12 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 · Cu–Nd system page · Markdown · field reference

Phases of the Cu–Nd system (13)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:cu-nd:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 1122.02–2499.66 K, x(Nd) 0.99828–1	0	3
CU2ND phase:cu-nd:cu2nd	Hg2K · oI12 · Imma (74)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–1111.24 K, x(Nd) 0.33333–0.33333	9	3
CU4ND phase:cu-nd:cu4nd	CeCu4 · oP20 · Pnnm (58)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–1098.63 K, x(Nd) 0.2–0.2	4	3
CU5ND_D2D phase:cu-nd:cu5nd-d2d	CaCu5 · D2_d · hP6 · P6/mmm (191)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1121.42 K, x(Nd) 0.16667–0.16667	4	3
CU6ND phase:cu-nd:cu6nd	CeCu6 · oP28 · Pnma (62)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–1223.18 K, x(Nd) 0.14286–0.14286	9	3
CU7ND2 phase:cu-nd:cu7nd2		needs_review	stable in 2 of 2 calculated diagram(s): 1069.48–1096.08 K, x(Nd) 0.22222–0.22222	1	2
CUND phase:cu-nd:cund		needs_review	stable in 1 of 1 calculated diagram(s): 300–889.29 K, x(Nd) 0.5–0.5	2	1
CUND_B2 phase:cu-nd:cund-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 742.76–947.59 K, x(Nd) 0.5–0.5	0	2
CUND_B27 phase:cu-nd:cund-b27	FeB · B27 · oP8 · Pnma (62)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–743 K, x(Nd) 0.5–0.5	2	2
DHCP phase:cu-nd:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1288.41 K, x(Nd) 1–1	0	3
FCC_A1 phase:cu-nd:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1401.61 K, x(Nd) 0–0.00046	1	3
HCP_A3 phase:cu-nd:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 3 calculated diagram(s)	0	3
LIQUID phase:cu-nd:liquid	liquid	liquid	stable in 3 of 3 calculated diagram(s): 300–2500 K, x(Nd) 0–1	10	3

BCC_A2 (Cu–Nd)

Id: phase:cu-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 3 of 3 calculated diagram(s): 1122.02–2499.66 K, x(Nd) 0.99828–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cu-nd:bcc-a2
tdb: tdb:CuNd-11Wan.tdb:BCC_A2, tdb:CuNd-96Du.tdb:BCC_A2, tdb:CuNd-96Zhu.tdb:BCC_A2

TDB models of BCC_A2 (3): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: BCC_A2, type code %B, sha256 dcf3e69ab0b3b3be…

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

CuNd-96Du.tdb: BCC_A2, type code %B, sha256 3ca7c1071943556d…

37: PHASE BCC_A2 %B 2 1 3 !
38: CONST BCC_A2 : CU ND% : VA : !

CuNd-96Zhu.tdb: BCC_A2, type code %B, sha256 b7165268ed28e2fa…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : CU ND% : VA : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase

CU2ND (Cu–Nd)

Id: phase:cu-nd:cu2nd; status assigned
Structure: Hg2K · oI12 · Imma (74); type st:hg2k-oi12; 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 (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cu 0.6667, Nd 0.3333
Stability: stable in 3 of 3 calculated diagram(s): 300–1111.24 K, x(Nd) 0.33333–0.33333
Literature: 9 values (9 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-nd:cu2nd
paper: paper:10.1007/bf02665998:Cu2Nd, paper:10.1016/j.jallcom.2010.11.160:Cu2Nd
tdb: tdb:CuNd-11Wan.tdb:CU2ND, tdb:CuNd-96Du.tdb:CU2ND, tdb:CuNd-96Zhu.tdb:CU2ND

TDB models of CU2ND (3): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: CU2ND, type code %, sha256 dcf3e69ab0b3b3be…

71: PHASE CU2ND % 2 2 1 !
72: CONST CU2ND : CU : ND : !

CuNd-96Du.tdb: CU2ND, type code %, sha256 3ca7c1071943556d…

72: PHASE CU2ND % 2 2 1 !
73: CONST CU2ND : CU : ND : !

CuNd-96Zhu.tdb: CU2ND, type code %, sha256 b7165268ed28e2fa…

62: PHASE CU2ND % 2 2 1 !
63: CONST CU2ND : CU : ND : !

Example references (5 of 5; assessments first):

doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase; reports values for this phase
doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase; reports values for this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/0022-5088(83)90230-8 M.M. Carnasciali, G.A. Costa, E.A. Franceschi, Phase equilibria in the Nd-Cu system, Journal of the Less Common Metals 92, 97-103 (1983).
cited as the source of values for this phase
doi:10.2320/matertrans1989.30.273 Guojun Qi, Kimio Itagaki, Akira Yazawa, High Temperature Heat Content Measurements of Cu&ndash;RE (RE=Y, La, Ce, Pr, Nd) Binary Systems, Mater. Trans., JIM 30, 273-282 (1989).
cited as the source of values for this phase

CU4ND (Cu–Nd)

Id: phase:cu-nd:cu4nd; status assigned
Structure: CeCu4 · oP20 · Pnnm (58); type st:cecu4-op20; 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: Cu 0.8000, Nd 0.2000
Stability: stable in 3 of 3 calculated diagram(s): 300–1098.63 K, x(Nd) 0.2–0.2
Literature: 4 values (4 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-nd:cu4nd
paper: paper:10.1007/bf02665998:Cu4Nd, paper:10.1016/j.jallcom.2010.11.160:Cu4Nd
tdb: tdb:CuNd-11Wan.tdb:CU4ND, tdb:CuNd-96Du.tdb:CU4ND, tdb:CuNd-96Zhu.tdb:CU4ND

TDB models of CU4ND (3): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: CU4ND, type code %, sha256 dcf3e69ab0b3b3be…

61: PHASE CU4ND % 2 4 1 !
62: CONST CU4ND : CU : ND : !

CuNd-96Du.tdb: CU4ND, type code %, sha256 3ca7c1071943556d…

62: PHASE CU4ND % 2 4 1 !
63: CONST CU4ND : CU : ND : !

CuNd-96Zhu.tdb: CU4ND, type code %, sha256 b7165268ed28e2fa…

57: PHASE CU4ND % 2 4 1 !
58: CONST CU4ND : CU : ND : !

Example references (4 of 4; assessments first):

doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/0022-5088(83)90230-8 M.M. Carnasciali, G.A. Costa, E.A. Franceschi, Phase equilibria in the Nd-Cu system, Journal of the Less Common Metals 92, 97-103 (1983).
cited as the source of values for this phase

CU5ND_D2D (Cu–Nd)

Id: phase:cu-nd:cu5nd-d2d; status assigned
Structure: CaCu5 · D2_d · hP6 · P6/mmm (191); type st:d2-d-cacu5-hp6; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaabrw and oqmd-31351, space group 191
Stoichiometry: Cu 0.8333, Nd 0.1667
Stability: stable in 3 of 3 calculated diagram(s): 300–1121.42 K, x(Nd) 0.16667–0.16667
Literature: 4 values (4 accepted) from 2 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:cu-nd:cu5nd-d2d
mp: mp:mp-aaaaabrw
oqmd: oqmd:oqmd-31351
paper: paper:10.1007/bf02665998:Cu5Nd, paper:10.1016/j.jallcom.2010.11.160:Cu5Nd
tdb: tdb:CuNd-11Wan.tdb:CU5ND_D2D, tdb:CuNd-96Du.tdb:CU5ND_D2D, tdb:CuNd-96Zhu.tdb:CU5ND_D2D

TDB models of CU5ND_D2D (3): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: CU5ND_D2D, type code %, sha256 dcf3e69ab0b3b3be…

56: PHASE CU5ND_D2D % 2 5 1 !
57: CONST CU5ND_D2D : CU : ND : !

CuNd-96Du.tdb: CU5ND_D2D, type code %, sha256 3ca7c1071943556d…

57: PHASE CU5ND_D2D % 2 5 1 !
58: CONST CU5ND_D2D : CU : ND : !

CuNd-96Zhu.tdb: CU5ND_D2D, type code %, sha256 b7165268ed28e2fa…

52: PHASE CU5ND_D2D % 2 5 1 !
53: CONST CU5ND_D2D : CU : ND : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase

CU6ND (Cu–Nd)

Id: phase:cu-nd:cu6nd; status assigned
Structure: CeCu6 · oP28 · Pnma (62); type st:cecu6-op28; 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: Cu 0.8571, Nd 0.1429
Stability: stable in 3 of 3 calculated diagram(s): 300–1223.18 K, x(Nd) 0.14286–0.14286
Literature: 9 values (9 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-nd:cu6nd
paper: paper:10.1007/bf02665998:Cu6Nd, paper:10.1016/j.jallcom.2010.11.160:Cu6Nd
tdb: tdb:CuNd-11Wan.tdb:CU6ND, tdb:CuNd-96Du.tdb:CU6ND, tdb:CuNd-96Zhu.tdb:CU6ND

TDB models of CU6ND (3): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: CU6ND, type code %, sha256 dcf3e69ab0b3b3be…

51: PHASE CU6ND % 2 6 1 !
52: CONST CU6ND : CU : ND : !

CuNd-96Du.tdb: CU6ND, type code %, sha256 3ca7c1071943556d…

52: PHASE CU6ND % 2 6 1 !
53: CONST CU6ND : CU : ND : !

CuNd-96Zhu.tdb: CU6ND, type code %, sha256 b7165268ed28e2fa…

47: PHASE CU6ND % 2 6 1 !
48: CONST CU6ND : CU : ND : !

Example references (5 of 5; assessments first):

doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase; reports values for this phase
doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase; reports values for this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/0022-5088(84)90385-0 Ch Laks, Joshua Pelleg, L Zevin, Notes on the Nd-Cu system, Journal of the Less Common Metals 102, 23-28 (1984).
cited as the source of values for this phase
doi:10.2320/matertrans1989.30.273 Guojun Qi, Kimio Itagaki, Akira Yazawa, High Temperature Heat Content Measurements of Cu&ndash;RE (RE=Y, La, Ce, Pr, Nd) Binary Systems, Mater. Trans., JIM 30, 273-282 (1989).
cited as the source of values for this phase

CU7ND2 (Cu–Nd)

Id: phase:cu-nd:cu7nd2; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (sgte_mmc2): (Cu7Nd2) — Hallstedt 2025 mmc2 row for CU7ND2: Cu7Nd2
Stoichiometry: Cu 0.7778, Nd 0.2222
Stability: stable in 2 of 2 calculated diagram(s): 1069.48–1096.08 K, x(Nd) 0.22222–0.22222
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cu-nd:cu7nd2
paper: paper:10.1016/j.jallcom.2010.11.160:Cu7Nd2
tdb: tdb:CuNd-11Wan.tdb:CU7ND2, tdb:CuNd-96Du.tdb:CU7ND2

TDB models of CU7ND2 (2): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: CU7ND2, type code %, sha256 dcf3e69ab0b3b3be…

66: PHASE CU7ND2 % 2 7 2 !
67: CONST CU7ND2 : CU : ND : !

CuNd-96Du.tdb: CU7ND2, type code %, sha256 3ca7c1071943556d…

67: PHASE CU7ND2 % 2 7 2 !
68: CONST CU7ND2 : CU : ND : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/0022-5088(83)90230-8 M.M. Carnasciali, G.A. Costa, E.A. Franceschi, Phase equilibria in the Nd-Cu system, Journal of the Less Common Metals 92, 97-103 (1983).
cited as the source of values for this phase

CUND (Cu–Nd)

Id: phase:cu-nd:cund; status needs_review
No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
Candidate (dft_mp): Pnma (62) — on-hull MP NdCu at x(ND)=0.5000
Candidate (dft_oqmd): Pnma (62) — on-hull OQMD Cu1 Nd1 at x(ND)=0.5000
Candidate (tdb_comment): FeB · oP8 · Pnma, lt — CuNd-96Zhu.tdb: 'Prototype FeB (oP8, Pnma, lt) and CsCl (cP2, Pm-3m, ht)'
Stoichiometry: Cu 0.5000, Nd 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–889.29 K, x(Nd) 0.5–0.5
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cu-nd:cund
paper: paper:10.1007/bf02665998:CuNd
tdb: tdb:CuNd-96Zhu.tdb:CUND

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

CuNd-96Zhu.tdb: CUND, type code %, sha256 b7165268ed28e2fa…

67: PHASE CUND % 2 1 1 !
68: CONST CUND : CU : ND : !

Example references (1 of 1; assessments first):

doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase; reports values for this phase

CUND_B2 (Cu–Nd)

Id: phase:cu-nd:cund-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Stoichiometry: Cu 0.5000, Nd 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 742.76–947.59 K, x(Nd) 0.5–0.5
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cu-nd:cund-b2
tdb: tdb:CuNd-11Wan.tdb:CUND_B2, tdb:CuNd-96Du.tdb:CUND_B2

TDB models of CUND_B2 (2): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: CUND_B2, type code %, sha256 dcf3e69ab0b3b3be…

81: PHASE CUND_B2 % 2 1 1 !
82: CONST CUND_B2 : CU : ND : !

CuNd-96Du.tdb: CUND_B2, type code %, sha256 3ca7c1071943556d…

82: PHASE CUND_B2 % 2 1 1 !
83: CONST CUND_B2 : CU : ND : !

Example references (2 of 2; assessments first):

doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase

CUND_B27 (Cu–Nd)

Id: phase:cu-nd:cund-b27; status assigned
Structure: FeB · B27 · oP8 · Pnma (62); type st:b27-feb-op8; tier A: standard phase name; confidence high
Stoichiometry: Cu 0.5000, Nd 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–743 K, x(Nd) 0.5–0.5
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cu-nd:cund-b27
paper: paper:10.1016/j.jallcom.2010.11.160:αCuNd
tdb: tdb:CuNd-11Wan.tdb:CUND_B27, tdb:CuNd-96Du.tdb:CUND_B27

TDB models of CUND_B27 (2): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: CUND_B27, type code %, sha256 dcf3e69ab0b3b3be…

76: PHASE CUND_B27 % 2 1 1 !
77: CONST CUND_B27 : CU : ND : !

CuNd-96Du.tdb: CUND_B27, type code %, sha256 3ca7c1071943556d…

77: PHASE CUND_B27 % 2 1 1 !
78: CONST CUND_B27 : CU : ND : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase

DHCP (Cu–Nd)

Id: phase:cu-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
Stoichiometry: Nd 1.0000
Stability: stable in 3 of 3 calculated diagram(s): 300–1288.41 K, x(Nd) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-nd:dhcp-a3, corpus:phase:cu-nd:dhcp
tdb: tdb:CuNd-11Wan.tdb:DHCP, tdb:CuNd-96Du.tdb:DHCP, tdb:CuNd-96Zhu.tdb:DHCP

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

CuNd-11Wan.tdb: DHCP, type code %, sha256 dcf3e69ab0b3b3be…

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

CuNd-96Du.tdb: DHCP, type code %, sha256 3ca7c1071943556d…

47: PHASE DHCP % 1 1 !
48: CONST DHCP : ND : !

CuNd-96Zhu.tdb: DHCP, type code %, sha256 b7165268ed28e2fa…

42: PHASE DHCP % 1 1 !
43: CONST DHCP : ND : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase

FCC_A1 (Cu–Nd)

Id: phase:cu-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 3 of 3 calculated diagram(s): 300–1401.61 K, x(Nd) 0–0.00046
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-nd:fcc-a1
paper: paper:10.1007/bf02665998:Cu(fcc)
tdb: tdb:CuNd-11Wan.tdb:FCC_A1, tdb:CuNd-96Du.tdb:FCC_A1, tdb:CuNd-96Zhu.tdb:FCC_A1

TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: FCC_A1, type code %A, sha256 dcf3e69ab0b3b3be…

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

CuNd-96Du.tdb: FCC_A1, type code %A, sha256 3ca7c1071943556d…

32: PHASE FCC_A1 %A 2 1 1 !
33: CONST FCC_A1 : CU% ND : VA : !

CuNd-96Zhu.tdb: FCC_A1, type code %A, sha256 b7165268ed28e2fa…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : CU% ND : VA : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase; reports values for this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase

HCP_A3 (Cu–Nd)

Id: phase:cu-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 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cu-nd:hcp-a3
tdb: tdb:CuNd-11Wan.tdb:HCP_A3, tdb:CuNd-96Du.tdb:HCP_A3, tdb:CuNd-96Zhu.tdb:HCP_A3

TDB models of HCP_A3 (3): PHASE and CONSTITUENT statements as written

CuNd-11Wan.tdb: HCP_A3, type code %A, sha256 dcf3e69ab0b3b3be…

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

CuNd-96Du.tdb: HCP_A3, type code %A, sha256 3ca7c1071943556d…

42: PHASE HCP_A3 %A 2 1 0.5 !
43: CONST HCP_A3 : CU ND : VA : !

CuNd-96Zhu.tdb: HCP_A3, type code %A, sha256 b7165268ed28e2fa…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : CU ND : VA : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase

LIQUID (Cu–Nd)

Id: phase:cu-nd:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 300–2500 K, x(Nd) 0–1
Literature: 10 values (10 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-nd:liquid
paper: paper:10.1007/bf02665998:L, paper:10.1016/j.jallcom.2010.11.160:liquid
tdb: tdb:CuNd-11Wan.tdb:LIQUID, tdb:CuNd-96Du.tdb:LIQUID, tdb:CuNd-96Zhu.tdb:LIQUID

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

CuNd-11Wan.tdb: LIQUID, type code %, sha256 dcf3e69ab0b3b3be…

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

CuNd-96Du.tdb: LIQUID, type code %, sha256 3ca7c1071943556d…

27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : CU ND : !

CuNd-96Zhu.tdb: LIQUID, type code %, sha256 b7165268ed28e2fa…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : CU ND : !

Example references (4 of 4; assessments first):

doi:10.1007/BF02665998 W. Zhuang, Z.-Y. Qiao, S. Wei, J. Shen, J. Phase Equilib., 17, 508-21(1996).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.11.160 Peisheng Wang, Liangcai Zhou, Yong Du, Honghui Xu, Shuhong Liu, Li Chen et al., Thermodynamic optimization of the Cu–Nd system, Journal of Alloys and Compounds 509, 2679-2683 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/1359-6462(96)00033-4 Yong Du, Narcís Clavaguera, Thermodynamic assessment of the Cu-Nd system, Scripta Materialia 34, 1609-1613 (1996).
assessment that models this phase
doi:10.1016/0022-5088(83)90230-8 M.M. Carnasciali, G.A. Costa, E.A. Franceschi, Phase equilibria in the Nd-Cu system, Journal of the Less Common Metals 92, 97-103 (1983).
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}
}