Cu–Dy phases

12 phases (tier A 6, tier C 2, liquid 1, needs_review 3); 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–Dy system page · Markdown · field reference

Phases of the Cu–Dy system (12)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:cu-dy:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 803.02–2499.97 K, x(Dy) 0.76541–1	6	2
CU2DY phase:cu-dy:cu2dy	Hg2K · oI12 · Imma (74)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1156.33 K, x(Dy) 0.33333–0.33333	27	2
CU5DY phase:cu-dy:cu5dy		needs_review	stable in 1 of 1 calculated diagram(s): 300–1235.81 K, x(Dy) 0.16667–0.16667	11	1
CU5DY_C15B phase:cu-dy:cu5dy-c15b	AuBe5 · C15_b · cF24 · F-43m (216)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1203 K, x(Dy) 0.16667–0.16667	8	1
CU5DY_D2D phase:cu-dy:cu5dy-d2d	CaCu5 · D2_d · hP6 · P6/mmm (191)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1203–1235.15 K, x(Dy) 0.16667–0.16667	4	1
CU7DY phase:cu-dy:cu7dy	Cu7Tb · hP8 · P6/mmm (191)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 1050.99–1174.15 K, x(Dy) 0.125–0.125	20	2
CU7DY2 phase:cu-dy:cu7dy2		needs_review	stable in 2 of 2 calculated diagram(s): 1127.08–1208.18 K, x(Dy) 0.22222–0.22222	11	2
CU9DY2 phase:cu-dy:cu9dy2		needs_review	stable in 2 of 2 calculated diagram(s): 300–1244.48 K, x(Dy) 0.18182–0.18182	24	2
CUDY_B2 phase:cu-dy:cudy-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1226.33 K, x(Dy) 0.5–0.5	15	2
FCC_A1 phase:cu-dy:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1364.77 K, x(Dy) 0–3e-05	10	2
HCP_A3 phase:cu-dy:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1668.02 K, x(Dy) 0.87939–1	1	2
LIQUID phase:cu-dy:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 1019.54–2500 K, x(Dy) 0–1	49	2

BCC_A2 (Cu–Dy)

Id: phase:cu-dy: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): 803.02–2499.97 K, x(Dy) 0.76541–1
Literature: 6 values (6 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-dy:bcc-a2
paper: paper:10.1016/j.calphad.2009.04.001:Dy bcc, paper:10.1016/j.jallcom.2008.03.007:Bcc
tdb: tdb:CuDy-09Pal.tdb:BCC_A2, tdb:CuDy-09Zha.tdb:BCC_A2

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

CuDy-09Pal.tdb: BCC_A2, type code %B, sha256 12983d67968493e1…

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

CuDy-09Zha.tdb: BCC_A2, type code %B, sha256 6c6f9d652328ae39…

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

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase

CU2DY (Cu–Dy)

Id: phase:cu-dy:cu2dy; 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 (dft_space_group_74_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cu 0.6667, Dy 0.3333
Stability: stable in 2 of 2 calculated diagram(s): 300–1156.33 K, x(Dy) 0.33333–0.33333
Literature: 27 values (27 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-dy:cu2dy
paper: paper:10.1016/j.calphad.2009.04.001:Cu2Dy, paper:10.1016/j.jallcom.2008.03.007:Cu2Dy
tdb: tdb:CuDy-09Pal.tdb:CU2DY, tdb:CuDy-09Zha.tdb:CU2DY

TDB models of CU2DY (2): PHASE and CONSTITUENT statements as written

CuDy-09Pal.tdb: CU2DY, type code %, sha256 12983d67968493e1…

63: PHASE CU2DY % 2 2 1 !
64: CONST CU2DY : CU : DY : !

CuDy-09Zha.tdb: CU2DY, type code %, sha256 6c6f9d652328ae39…

68: PHASE CU2DY % 2 2 1 !
69: CONST CU2DY : CU : DY : !

Example references (5 of 5; assessments first):

doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase
doi:10.1107/s0365110x6300181x A. R. Storm, K. E. Benson, Lanthanide–copper intermetallic compounds having the CeCu<sub>2</sub>and AlB<sub>2</sub>structure, Acta Cryst 16, 701-702 (1963).
cited as the source of values for this phase
doi:10.1016/j.jallcom.2004.08.062 S.V. Meschel, O.J. Kleppa, Thermochemistry of some binary alloys of copper with the lanthanide metals by high-temperature direct synthesis calorimetry, Journal of Alloys and Compounds 388, 91-97 (2005).
cited as the source of values for this phase

CU5DY (Cu–Dy)

Id: phase:cu-dy:cu5dy; status needs_review
No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
Candidate (dft_mp): P6/mmm (191) — on-hull MP DyCu5 at x(DY)=0.1667
Candidate (dft_oqmd): P6/mmm (191) — on-hull OQMD Cu5 Dy1 at x(DY)=0.1667
Candidate (tdb_comment): AuBe5 · cF24 · F-43m — CuDy-09Pal.tdb: 'Prototype AuBe5 (cF24, F-43m), LT'
Candidate (tdb_comment): CaCu5 · hP6 · P6/mmm — CuDy-09Pal.tdb: 'Prototype CaCu5 (hP6, P6/mmm), HT'
Stoichiometry: Cu 0.8333, Dy 0.1667
Stability: stable in 1 of 1 calculated diagram(s): 300–1235.81 K, x(Dy) 0.16667–0.16667
Literature: 11 values (11 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cu-dy:cu5dy
paper: paper:10.1016/j.calphad.2009.04.001:Cu5Dy
tdb: tdb:CuDy-09Pal.tdb:CU5DY

TDB models of CU5DY (1): PHASE and CONSTITUENT statements as written

CuDy-09Pal.tdb: CU5DY, type code %, sha256 12983d67968493e1…

48: PHASE CU5DY % 2 5 1 !
49: CONST CU5DY : CU : DY : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase
doi:10.1016/j.jallcom.2004.08.062 S.V. Meschel, O.J. Kleppa, Thermochemistry of some binary alloys of copper with the lanthanide metals by high-temperature direct synthesis calorimetry, Journal of Alloys and Compounds 388, 91-97 (2005).
cited as the source of values for this phase

CU5DY_C15B (Cu–Dy)

Id: phase:cu-dy:cu5dy-c15b; status assigned
Structure: AuBe5 · C15_b · cF24 · F-43m (216); type st:c15-b-aube5-cf24; tier A: standard phase name; confidence high
Stoichiometry: Cu 0.8333, Dy 0.1667
Stability: stable in 1 of 1 calculated diagram(s): 300–1203 K, x(Dy) 0.16667–0.16667
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cu-dy:cu5dy-c15b
paper: paper:10.1016/j.jallcom.2008.03.007:Cu5Dy.L, paper:10.1016/j.jallcom.2008.03.007:CuDy.L
tdb: tdb:CuDy-09Zha.tdb:CU5DY_C15B

TDB models of CU5DY_C15B (1): PHASE and CONSTITUENT statements as written

CuDy-09Zha.tdb: CU5DY_C15B, type code %, sha256 6c6f9d652328ae39…

48: PHASE CU5DY_C15B % 2 5 1 !
49: CONST CU5DY_C15B : CU : DY : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase

CU5DY_D2D (Cu–Dy)

Id: phase:cu-dy:cu5dy-d2d; status assigned
Structure: CaCu5 · D2_d · hP6 · P6/mmm (191); type st:d2-d-cacu5-hp6; tier A: standard phase name; confidence high
Stoichiometry: Cu 0.8333, Dy 0.1667
Stability: stable in 1 of 1 calculated diagram(s): 1203–1235.15 K, x(Dy) 0.16667–0.16667
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cu-dy:cu5dy-d2d
paper: paper:10.1016/j.jallcom.2008.03.007:Cu5Dy.H, paper:10.1016/j.jallcom.2008.03.007:Cu5Dy.L
tdb: tdb:CuDy-09Zha.tdb:CU5DY_D2D

TDB models of CU5DY_D2D (1): PHASE and CONSTITUENT statements as written

CuDy-09Zha.tdb: CU5DY_D2D, type code %, sha256 6c6f9d652328ae39…

53: PHASE CU5DY_D2D % 2 5 1 !
54: CONST CU5DY_D2D : CU : DY : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase

CU7DY (Cu–Dy)

Id: phase:cu-dy:cu7dy; status assigned
Structure: Cu7Tb · hP8 · P6/mmm (191); type st:cu7tb-hp8; 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 0.8750, Dy 0.1250
Stability: stable in 2 of 2 calculated diagram(s): 1050.99–1174.15 K, x(Dy) 0.125–0.125
Literature: 20 values (20 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-dy:cu7dy
paper: paper:10.1016/j.calphad.2009.04.001:Cu7Dy, paper:10.1016/j.jallcom.2008.03.007:Cu7Dy
tdb: tdb:CuDy-09Pal.tdb:CU7DY, tdb:CuDy-09Zha.tdb:CU7DY

TDB models of CU7DY (2): PHASE and CONSTITUENT statements as written

CuDy-09Pal.tdb: CU7DY, type code %, sha256 12983d67968493e1…

42: PHASE CU7DY % 2 7 1 !
43: CONST CU7DY : CU : DY : !

CuDy-09Zha.tdb: CU7DY, type code %, sha256 6c6f9d652328ae39…

43: PHASE CU7DY % 2 7 1 !
44: CONST CU7DY : CU : DY : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase
doi:10.1107/s0567740871003558 K. H. J. Buschow, A. S. van der Goot, Composition and crystal structure of hexagonal Cu-rich rare earth–copper compounds, Acta Crystallogr B Struct Crystallogr Cryst Chem 27, 1085-1088 (1971).
cited as the source of values for this phase

CU7DY2 (Cu–Dy)

Id: phase:cu-dy:cu7dy2; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (literature_printed): (Cu7Dy2) · mC* — printed with a label mapped to this phase
Candidate (sgte_mmc2): (Cu7Dy2) — Hallstedt 2025 mmc2 row for CU7DY2: Cu7Dy2
Stoichiometry: Cu 0.7778, Dy 0.2222
Stability: stable in 2 of 2 calculated diagram(s): 1127.08–1208.18 K, x(Dy) 0.22222–0.22222
Literature: 11 values (11 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-dy:cu7dy2
paper: paper:10.1016/j.calphad.2009.04.001:Cu7Dy2, paper:10.1016/j.jallcom.2008.03.007:Cu7Dy2
tdb: tdb:CuDy-09Pal.tdb:CU7DY2, tdb:CuDy-09Zha.tdb:CU7DY2

TDB models of CU7DY2 (2): PHASE and CONSTITUENT statements as written

CuDy-09Pal.tdb: CU7DY2, type code %, sha256 12983d67968493e1…

58: PHASE CU7DY2 % 2 7 2 !
59: CONST CU7DY2 : CU : DY : !

CuDy-09Zha.tdb: CU7DY2, type code %, sha256 6c6f9d652328ae39…

63: PHASE CU7DY2 % 2 7 2 !
64: CONST CU7DY2 : CU : DY : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase
doi:10.1016/s0022-4596(03)00187-7 R. Černý, L. Guénée, R. Wessicken, A single crystal X-ray and HRTEM study of new series of compounds DyCux (x=4.5, 4 and 3.5), Journal of Solid State Chemistry 174, 125-131 (2003).
cited as the source of values for this phase

CU9DY2 (Cu–Dy)

Id: phase:cu-dy:cu9dy2; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (literature_printed): (Cu9Dy2) · t** or mC* — printed with a label mapped to this phase
Candidate (sgte_mmc2): (Cu9Dy2) — Hallstedt 2025 mmc2 row for CU9DY2: Cu9Dy2
Stoichiometry: Cu 0.8182, Dy 0.1818
Stability: stable in 2 of 2 calculated diagram(s): 300–1244.48 K, x(Dy) 0.18182–0.18182
Literature: 24 values (24 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-dy:cu9dy2
paper: paper:10.1016/j.calphad.2009.04.001:Cu9Dy2, paper:10.1016/j.jallcom.2008.03.007:Cu9Dy2
tdb: tdb:CuDy-09Pal.tdb:CU9DY2, tdb:CuDy-09Zha.tdb:CU9DY2

TDB models of CU9DY2 (2): PHASE and CONSTITUENT statements as written

CuDy-09Pal.tdb: CU9DY2, type code %, sha256 12983d67968493e1…

53: PHASE CU9DY2 % 2 9 2 !
54: CONST CU9DY2 : CU : DY : !

CuDy-09Zha.tdb: CU9DY2, type code %, sha256 6c6f9d652328ae39…

58: PHASE CU9DY2 % 2 9 2 !
59: CONST CU9DY2 : CU : DY : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase
doi:10.1016/s0022-4596(03)00187-7 R. Černý, L. Guénée, R. Wessicken, A single crystal X-ray and HRTEM study of new series of compounds DyCux (x=4.5, 4 and 3.5), Journal of Solid State Chemistry 174, 125-131 (2003).
cited as the source of values for this phase

CUDY_B2 (Cu–Dy)

Id: phase:cu-dy:cudy-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, Dy 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–1226.33 K, x(Dy) 0.5–0.5
Literature: 15 values (15 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-dy:cudy-b2
paper: paper:10.1016/j.calphad.2009.04.001:CuDy, paper:10.1016/j.jallcom.2008.03.007:CuDy
tdb: tdb:CuDy-09Pal.tdb:CUDY_B2, tdb:CuDy-09Zha.tdb:CUDY_B2

TDB models of CUDY_B2 (2): PHASE and CONSTITUENT statements as written

CuDy-09Pal.tdb: CUDY_B2, type code %, sha256 12983d67968493e1…

68: PHASE CUDY_B2 % 2 1 1 !
69: CONST CUDY_B2 : CU : DY : !

CuDy-09Zha.tdb: CUDY_B2, type code %, sha256 6c6f9d652328ae39…

73: PHASE CUDY_B2 % 2 1 1 !
74: CONST CUDY_B2 : CU : DY : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase

FCC_A1 (Cu–Dy)

Id: phase:cu-dy: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): 300–1364.77 K, x(Dy) 0–3e-05
Literature: 10 values (10 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-dy:fcc-a1
paper: paper:10.1016/j.calphad.2009.04.001:Cu fcc, paper:10.1016/j.jallcom.2008.03.007:Fcc
tdb: tdb:CuDy-09Pal.tdb:FCC_A1, tdb:CuDy-09Zha.tdb:FCC_A1

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

CuDy-09Pal.tdb: FCC_A1, type code %A, sha256 12983d67968493e1…

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

CuDy-09Zha.tdb: FCC_A1, type code %A, sha256 6c6f9d652328ae39…

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

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
cited as the source of values for this phase

HCP_A3 (Cu–Dy)

Id: phase:cu-dy: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 2 of 2 calculated diagram(s): 300–1668.02 K, x(Dy) 0.87939–1
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cu-dy:hcp-a3
paper: paper:10.1016/j.jallcom.2008.03.007:Hcp
tdb: tdb:CuDy-09Pal.tdb:HCP_A3, tdb:CuDy-09Zha.tdb:HCP_A3

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

CuDy-09Pal.tdb: HCP_A3, type code %A, sha256 12983d67968493e1…

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

CuDy-09Zha.tdb: HCP_A3, type code %A, sha256 6c6f9d652328ae39…

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

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase

LIQUID (Cu–Dy)

Id: phase:cu-dy:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 1019.54–2500 K, x(Dy) 0–1
Literature: 49 values (49 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-dy:liquid
paper: paper:10.1016/j.calphad.2009.04.001:liquid, paper:10.1016/j.jallcom.2008.03.007:L
tdb: tdb:CuDy-09Pal.tdb:LIQUID, tdb:CuDy-09Zha.tdb:LIQUID

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

CuDy-09Pal.tdb: LIQUID, type code %, sha256 12983d67968493e1…

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

CuDy-09Zha.tdb: LIQUID, type code %, sha256 6c6f9d652328ae39…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : CU DY : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2008.03.007 L.G. Zhang, G.X. Huang, H.Y. Qi, B.R. Jia, L.B. Liu, Z.P. Jin, Thermodynamic assessment of the Cu–Dy binary system, Journal of Alloys and Compounds 470, 214-217 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2009.04.001 M. Palumbo, L. Battezzati, A. Pasturel, S. Gottlieb-Schönmeyer, W. Assmus, Thermodynamic and ab initio investigation of the Cu–Dy system, Calphad 33, 511-516 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(82)90092-3 Enrico Franceschi, On the Dy-Cu system, Journal of the Less Common Metals 87, 249-256 (1982).
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}
}