Cu–P phases

11 phases (tier A 4, tier C 2, liquid 1, gas 1, needs_review 3); 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 · Cu–P system page · Markdown · field reference

Phases of the Cu–P system (11)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:cu-p:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	not stable in 5 calculated diagram(s)	0	5
CU2P7 phase:cu-p:cu2p7		needs_review	stable in 2 of 2 calculated diagram(s): 300–1024.72 K, x(P) 0.77778–0.77778	1	2
CU3P_HT phase:cu-p:cu3p	Cu3P-beta · hP8 · P-3m1 (164)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 831.66–1302.57 K, x(P) 0.25–0.25	0	1
CU3P_D021 phase:cu-p:cu3p-d021	Cu3P · D0_21 · hP24 · P6_3cm (185)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–1313.84 K, x(P) 0.25–0.27297	2	5
CUP2 phase:cu-p:cup2	CuP2 · mP12 · P2_1/c (14)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–1504.04 K, x(P) 0.66667–0.66667	1	3
FCC_A1 phase:cu-p:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–1362.76 K, x(P) 0–0.0363	0	5
GAS phase:cu-p:gas	gas	gas	stable in 5 of 5 calculated diagram(s): 704.7–2500 K, x(P) 0.91101–1	0	5
HCP_A3 phase:cu-p:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 5 calculated diagram(s)	0	5
LIQUID phase:cu-p:liquid	liquid	liquid	stable in 5 of 5 calculated diagram(s): 300–2500 K, x(P) 0–0.91039	5	5
RED_P phase:cu-p:p-red		needs_review	stable in 5 of 5 calculated diagram(s): 300–704.7 K, x(P) 1–1	0	5
WHITE_P phase:cu-p:p-white		needs_review	not stable in 5 calculated diagram(s)	0	5

BCC_A2 (Cu–P)

Id: phase:cu-p:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: not stable in 5 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-p:bcc-a2
tdb: tdb:CuP-01Mie.tdb:BCC_A2, tdb:CuP-09Nod.tdb:BCC_A2, tdb:CuP-11Hin.tdb:BCC_A2, tdb:CuP-24Oik.tdb:BCC_A2, tdb:CuP-87Cha.tdb:BCC_A2

TDB models of BCC_A2 (5): PHASE and CONSTITUENT statements as written

CuP-01Mie.tdb: BCC_A2, type code %B, sha256 d0fcbb19146f394a…

42: PHASE BCC_A2 %B 2 1 3 !
43: CONST BCC_A2 : CU P : VA : !

CuP-09Nod.tdb: BCC_A2, type code %B, sha256 84c5a8213d883d5f…

42: PHASE BCC_A2 %B 2 1 3 !
43: CONST BCC_A2 : CU P : VA : !

CuP-11Hin.tdb: BCC_A2, type code %B, sha256 6f9731f697b71a35…

41: PHASE BCC_A2 %B 2 1 3 !
42: CONST BCC_A2 : CU P : VA : !

CuP-24Oik.tdb: BCC_A2, type code %B, sha256 9db6650d61c29ade…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : CU P : VA : !

CuP-87Cha.tdb: BCC_A2, type code %B, sha256 660c669bfee6f6ce…

43: PHASE BCC_A2 %B 2 1 3 !
44: CONST BCC_A2 : CU P : VA : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

CU2P7 (Cu–P)

Id: phase:cu-p:cu2p7; status needs_review
No structure assigned. Why: tdb_comment_names_own_prototype_Cu2P7_not_Ni7Zr2 (CuP-11Hin.tdb)
Candidate (dft_unique_match): Ni7Zr2 · mC36 · C2/m (12) — assignment withdrawn: tdb_comment_names_own_prototype_Cu2P7_not_Ni7Zr2 (CuP-11Hin.tdb)
Stoichiometry: Cu 0.2222, P 0.7778
Stability: stable in 2 of 2 calculated diagram(s): 300–1024.72 K, x(P) 0.77778–0.77778
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cu-p:cu2p7
paper: paper:10.1007/s11669-024-01112-z:Cu2P7
tdb: tdb:CuP-11Hin.tdb:CU2P7, tdb:CuP-24Oik.tdb:CU2P7

TDB models of CU2P7 (2): PHASE and CONSTITUENT statements as written

CuP-11Hin.tdb: CU2P7, type code %, sha256 6f9731f697b71a35…

76: PHASE CU2P7 % 2 2 7 !
77: CONST CU2P7 : CU : P : !

CuP-24Oik.tdb: CU2P7, type code %, sha256 9db6650d61c29ade…

69: PHASE CU2P7 % 2 2 7 !
70: CONST CU2P7 : CU : P : !

Example references (2 of 2; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase; reports values for this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

CU3P_HT (Cu–P)

Id: phase:cu-p:cu3p; status assigned
Structure: Cu3P-beta · hP8 · P-3m1 (164); type st:cu3p-beta-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_structure_token, polymorph_family:other phases of this system have the same composition); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cu 0.7500, P 0.2500
Stability: stable in 1 of 1 calculated diagram(s): 831.66–1302.57 K, x(P) 0.25–0.25
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:cu-p:cu3p
tdb: tdb:CuP-11Hin.tdb:CU3P_HT

TDB models of CU3P_HT (1): PHASE and CONSTITUENT statements as written

CuP-11Hin.tdb: CU3P_HT, type code %, sha256 6f9731f697b71a35…

66: PHASE CU3P_HT % 2 3 1 !
67: CONST CU3P_HT : CU : P : !

Example references (1 of 1; assessments first):

doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

CU3P_D021 (Cu–P)

Id: phase:cu-p:cu3p-d021; status assigned
Structure: Cu3P · D0_21 · hP24 · P6_3cm (185); type st:d0-21-cu3p-hp24; tier A: standard phase name; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 300–1313.84 K, x(P) 0.25–0.27297
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:cu-p:cu3p-d021
paper: paper:10.1007/s11669-024-01112-z:Cu3P
tdb: tdb:CuP-01Mie.tdb:CU3P_D021, tdb:CuP-09Nod.tdb:CU3P_D021, tdb:CuP-11Hin.tdb:CU3P_D021, tdb:CuP-24Oik.tdb:CU3P_D021, tdb:CuP-87Cha.tdb:CU3P_D021

TDB models of CU3P_D021 (5): PHASE and CONSTITUENT statements as written

CuP-01Mie.tdb: CU3P_D021, type code %, sha256 d0fcbb19146f394a…

62: PHASE CU3P_D021 % 2 3 1 !
63: CONST CU3P_D021 : CU : P : !

CuP-09Nod.tdb: CU3P_D021, type code %, sha256 84c5a8213d883d5f…

62: PHASE CU3P_D021 % 2 3 1 !
63: CONST CU3P_D021 : CU : P : !

CuP-11Hin.tdb: CU3P_D021, type code %, sha256 6f9731f697b71a35…

61: PHASE CU3P_D021 % 2 3 1 !
62: CONST CU3P_D021 : CU : P : !

CuP-24Oik.tdb: CU3P_D021, type code %, sha256 9db6650d61c29ade…

59: PHASE CU3P_D021 % 2 3 1 !
60: CONST CU3P_D021 : CU% VA : P : !

CuP-87Cha.tdb: CU3P_D021, type code %, sha256 660c669bfee6f6ce…

63: PHASE CU3P_D021 % 2 3 1 !
64: CONST CU3P_D021 : CU : P : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

CUP2 (Cu–P)

Id: phase:cu-p:cup2; status assigned
Structure: CuP2 · mP12 · P2_1/c (14); type st:cup2-mp12; 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_14_matches_5_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cu 0.3333, P 0.6667
Stability: stable in 3 of 3 calculated diagram(s): 300–1504.04 K, x(P) 0.66667–0.66667
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cu-p:cup2
paper: paper:10.1007/s11669-024-01112-z:CuP2
tdb: tdb:CuP-09Nod.tdb:CUP2, tdb:CuP-11Hin.tdb:CUP2, tdb:CuP-24Oik.tdb:CUP2

TDB models of CUP2 (3): PHASE and CONSTITUENT statements as written

CuP-09Nod.tdb: CUP2, type code %, sha256 84c5a8213d883d5f…

67: PHASE CUP2 % 2 1 2 !
68: CONST CUP2 : CU : P : !

CuP-11Hin.tdb: CUP2, type code %, sha256 6f9731f697b71a35…

71: PHASE CUP2 % 2 1 2 !
72: CONST CUP2 : CU : P : !

CuP-24Oik.tdb: CUP2, type code %, sha256 9db6650d61c29ade…

64: PHASE CUP2 % 2 1 2 !
65: CONST CUP2 : CU : P : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

FCC_A1 (Cu–P)

Id: phase:cu-p: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 5 of 5 calculated diagram(s): 300–1362.76 K, x(P) 0–0.0363
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-p:fcc-a1
tdb: tdb:CuP-01Mie.tdb:FCC_A1, tdb:CuP-09Nod.tdb:FCC_A1, tdb:CuP-11Hin.tdb:FCC_A1, tdb:CuP-24Oik.tdb:FCC_A1, tdb:CuP-87Cha.tdb:FCC_A1

TDB models of FCC_A1 (5): PHASE and CONSTITUENT statements as written

CuP-01Mie.tdb: FCC_A1, type code %A, sha256 d0fcbb19146f394a…

37: PHASE FCC_A1 %A 2 1 1 !
38: CONST FCC_A1 : CU% P : VA : !

CuP-09Nod.tdb: FCC_A1, type code %A, sha256 84c5a8213d883d5f…

37: PHASE FCC_A1 %A 2 1 1 !
38: CONST FCC_A1 : CU% P : VA : !

CuP-11Hin.tdb: FCC_A1, type code %A, sha256 6f9731f697b71a35…

36: PHASE FCC_A1 %A 2 1 1 !
37: CONST FCC_A1 : CU% P : VA : !

CuP-24Oik.tdb: FCC_A1, type code %A, sha256 9db6650d61c29ade…

34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : CU% P : VA : !

CuP-87Cha.tdb: FCC_A1, type code %A, sha256 660c669bfee6f6ce…

38: PHASE FCC_A1 %A 2 1 1 !
39: CONST FCC_A1 : CU% P : VA : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

GAS (Cu–P)

Id: phase:cu-p:gas; status assigned
Structure: gas; type st:gas; gas; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 704.7–2500 K, x(P) 0.91101–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-p:gas
tdb: tdb:CuP-01Mie.tdb:GAS, tdb:CuP-09Nod.tdb:GAS, tdb:CuP-11Hin.tdb:GAS, tdb:CuP-24Oik.tdb:GAS, tdb:CuP-87Cha.tdb:GAS

TDB models of GAS (5): PHASE and CONSTITUENT statements as written

CuP-01Mie.tdb: GAS, type code %, sha256 d0fcbb19146f394a…

65: PHASE GAS:G % 1 1 !
66: CONST GAS:G : CU CU2 P P2 P3 P4 : !

CuP-09Nod.tdb: GAS, type code %, sha256 84c5a8213d883d5f…

70: PHASE GAS:G % 1 1 !
71: CONST GAS:G : CU CU2 P P2 P4 : !

CuP-11Hin.tdb: GAS, type code %, sha256 6f9731f697b71a35…

79: PHASE GAS:G % 1 1 !
80: CONST GAS:G : CU CU2 P P2 P3 P4 : !

CuP-24Oik.tdb: GAS, type code %, sha256 9db6650d61c29ade…

72: PHASE GAS:G % 1 1 !
73: CONST GAS:G : CU CU2 P P2 P3 P4 : !

CuP-87Cha.tdb: GAS, type code %, sha256 660c669bfee6f6ce…

66: PHASE GAS:G % 1 1 !
67: CONST GAS:G : CU CU2 P P2 P4 : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

HCP_A3 (Cu–P)

Id: phase:cu-p:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stoichiometry: Cu 1.0000
Stability: not stable in 5 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-p:hcp-a3
tdb: tdb:CuP-01Mie.tdb:HCP_A3, tdb:CuP-09Nod.tdb:HCP_A3, tdb:CuP-11Hin.tdb:HCP_A3, tdb:CuP-24Oik.tdb:HCP_A3, tdb:CuP-87Cha.tdb:HCP_A3

TDB models of HCP_A3 (5): PHASE and CONSTITUENT statements as written

CuP-01Mie.tdb: HCP_A3, type code %A, sha256 d0fcbb19146f394a…

47: PHASE HCP_A3 %A 2 1 0.5 !
48: CONST HCP_A3 : CU : VA : !

CuP-09Nod.tdb: HCP_A3, type code %A, sha256 84c5a8213d883d5f…

47: PHASE HCP_A3 %A 2 1 0.5 !
48: CONST HCP_A3 : CU : VA : !

CuP-11Hin.tdb: HCP_A3, type code %A, sha256 6f9731f697b71a35…

46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : CU : VA : !

CuP-24Oik.tdb: HCP_A3, type code %A, sha256 9db6650d61c29ade…

44: PHASE HCP_A3 %A 2 1 0.5 !
45: CONST HCP_A3 : CU : VA : !

CuP-87Cha.tdb: HCP_A3, type code %A, sha256 660c669bfee6f6ce…

48: PHASE HCP_A3 %A 2 1 0.5 !
49: CONST HCP_A3 : CU : VA : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

LIQUID (Cu–P)

Id: phase:cu-p:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 300–2500 K, x(P) 0–0.91039
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:cu-p:liquid
paper: paper:10.1007/s11669-024-01112-z:Liq., paper:10.1007/s11669-024-01112-z:liquid
tdb: tdb:CuP-01Mie.tdb:LIQUID, tdb:CuP-09Nod.tdb:LIQUID, tdb:CuP-11Hin.tdb:LIQUID, tdb:CuP-24Oik.tdb:LIQUID, tdb:CuP-87Cha.tdb:LIQUID

TDB models of LIQUID (5): PHASE and CONSTITUENT statements as written

CuP-01Mie.tdb: LIQUID, type code %, sha256 d0fcbb19146f394a…

32: PHASE LIQUID:L % 1 1 !
33: CONST LIQUID:L : CU P : !

CuP-09Nod.tdb: LIQUID, type code %, sha256 84c5a8213d883d5f…

32: PHASE LIQUID:L % 1 1 !
33: CONST LIQUID:L : CU P : !

CuP-11Hin.tdb: LIQUID, type code %, sha256 6f9731f697b71a35…

31: PHASE LIQUID:L % 1 1 !
32: CONST LIQUID:L : CU CU3P P : !

CuP-24Oik.tdb: LIQUID, type code %, sha256 9db6650d61c29ade…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : CU CU3P P : !

CuP-87Cha.tdb: LIQUID, type code %, sha256 660c669bfee6f6ce…

33: PHASE LIQUID:L % 1 1 !
34: CONST LIQUID:L : CU P : !

Example references (8 of 8; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase; cited as the source of values for this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.2320/matertrans.48.799 Kazuhiro Matsugi, Takayuki Hino, Gen Sasaki, Osamu Yanagisawa, Minoru Kidani, Effects of Ca Addition on Solidification Structure of Cu-Sn-Zn Bronze Castings, Mater. Trans. 48, 799-806 (2007).
cited as the source of values for this phase
doi:10.1002/zaac.19332130306 J. Verö, Über das Zustandsschaubild der CuSnP‐Legierungen, Z. Anorg. Allg. Chem. 213, 257-272 (1933).
cited as the source of values for this phase
doi:10.1524/zkri.1980.153.14.339 Wolfgang Hönle, Hans Georg von Schnering, Cu4SnP10, a compound with decaphospha-adamantane anions P6- 10 and four-center [SnCu3] clusters, Zeitschrift für Kristallographie - Crystalline Materials 153, 339-350 (1980).
cited as the source of values for this phase
doi:10.3139/146.110789 M. Grasser, A. Ludwig, and W. Schillinger, Thermodynamic Description of the System Cu-Sn-P Experimental and Numerical Investigation, Inter. J. Mater. Res., 2012, 103, p 1312-1318. https://doi.org/10.3139/146.110789
cited as the source of values for this phase

RED_P (Cu–P)

Id: phase:cu-p:p-red; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:RED; no_structure_token
Candidate (sgte_mmc2): (Red P) — Hallstedt 2025 mmc2 row for RED_P: Red P
Stoichiometry: P 1.0000
Stability: stable in 5 of 5 calculated diagram(s): 300–704.7 K, x(P) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-p:p-red
tdb: tdb:CuP-01Mie.tdb:RED_P, tdb:CuP-09Nod.tdb:RED_P, tdb:CuP-11Hin.tdb:RED_P, tdb:CuP-24Oik.tdb:RED_P, tdb:CuP-87Cha.tdb:RED_P

TDB models of RED_P (5): PHASE and CONSTITUENT statements as written

CuP-01Mie.tdb: RED_P, type code %, sha256 d0fcbb19146f394a…

57: PHASE RED_P % 1 1 !
58: CONST RED_P : P : !

CuP-09Nod.tdb: RED_P, type code %, sha256 84c5a8213d883d5f…

57: PHASE RED_P % 1 1 !
58: CONST RED_P : P : !

CuP-11Hin.tdb: RED_P, type code %, sha256 6f9731f697b71a35…

56: PHASE RED_P % 1 1 !
57: CONST RED_P : P : !

CuP-24Oik.tdb: RED_P, type code %, sha256 9db6650d61c29ade…

54: PHASE RED_P % 1 1 !
55: CONST RED_P : P : !

CuP-87Cha.tdb: RED_P, type code %, sha256 660c669bfee6f6ce…

58: PHASE RED_P % 1 1 !
59: CONST RED_P : P : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

WHITE_P (Cu–P)

Id: phase:cu-p:p-white; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:WHITE; no_structure_token
Candidate (sgte_mmc2): (White P) — Hallstedt 2025 mmc2 row for WHITE_P: White P
Stoichiometry: P 1.0000
Stability: not stable in 5 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:cu-p:p-white
tdb: tdb:CuP-01Mie.tdb:WHITE_P, tdb:CuP-09Nod.tdb:WHITE_P, tdb:CuP-11Hin.tdb:WHITE_P, tdb:CuP-24Oik.tdb:WHITE_P, tdb:CuP-87Cha.tdb:WHITE_P

TDB models of WHITE_P (5): PHASE and CONSTITUENT statements as written

CuP-01Mie.tdb: WHITE_P, type code %, sha256 d0fcbb19146f394a…

52: PHASE WHITE_P % 1 1 !
53: CONST WHITE_P : P : !

CuP-09Nod.tdb: WHITE_P, type code %, sha256 84c5a8213d883d5f…

52: PHASE WHITE_P % 1 1 !
53: CONST WHITE_P : P : !

CuP-11Hin.tdb: WHITE_P, type code %, sha256 6f9731f697b71a35…

51: PHASE WHITE_P % 1 1 !
52: CONST WHITE_P : P : !

CuP-24Oik.tdb: WHITE_P, type code %, sha256 9db6650d61c29ade…

49: PHASE WHITE_P % 1 1 !
50: CONST WHITE_P : P : !

CuP-87Cha.tdb: WHITE_P, type code %, sha256 660c669bfee6f6ce…

53: PHASE WHITE_P % 1 1 !
54: CONST WHITE_P : P : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2009.03.005 T. Noda, K. Oikawa, S. Itoh, M. Hino, T. Nagasaka, Calphad, 33, 557-60(2009).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
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}
}