Al–Pt phases

14 phases (tier A 8, tier B 2, tier C 1, 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 · Al–Pt system page · Markdown · field reference

Phases of the Al–Pt system (14)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
AL21PT5 phase:al-pt:al21pt5	Li21Si5 · cF416 · F-43m (216)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1085.55 K, x(Pt) 0.19231–0.19231	6	2
AL21PT8 phase:al-pt:al21pt8	Al21Pt8 · tI116 · I4_1/a (88)	tier B: DFT-supported (unique MP + OQMD match)	stable in 2 of 2 calculated diagram(s): 300–1406.74 K, x(Pt) 0.27586–0.27586	8	2
AL2PT_C1 phase:al-pt:al2pt-c1	CaF2 · C1 · cF12 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1677.09 K, x(Pt) 0.33333–0.33333	6	2
AL3PT2_D513 phase:al-pt:al3pt2-d513	Ni2Al3 · D5_13 · hP5 · P-3m1 (164)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1795.51 K, x(Pt) 0.4–0.4	11	2
AL3PT5 phase:al-pt:al3pt5	Ge3Rh5 · oP16 · Pbam (55)	tier B: DFT-supported (unique MP + OQMD match)	stable in 2 of 2 calculated diagram(s): 300–1735.72 K, x(Pt) 0.625–0.625	7	2
ALPT_B20 phase:al-pt:alpt-b20	FeSi · B20 · cP8 · P2_13 (198)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1826.41 K, x(Pt) 0.5–0.5	7	2
ALPT2 phase:al-pt:alpt2		needs_review	stable in 1 of 1 calculated diagram(s): 300–1621.35 K, x(Pt) 0.66667–0.66667	0	1
ALPT3_L12 phase:al-pt:alpt3-l12	AuCu3 · L1_2 · cP4 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1824.92 K, x(Pt) 0.74881–0.78294	5	1
BCC_A2 phase:al-pt:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	not stable in 2 calculated diagram(s)	0	3
B2_BCC phase:al-pt:bcc-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1534.5–1817.32 K, x(Pt) 0.49818–0.55566	0	1
FCC_4SL phase:al-pt:fcc-4sl		needs_review	stable in 1 of 1 calculated diagram(s): 300–2499.43 K, x(Pt) 0–1	0	1
FCC_A1 phase:al-pt:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–2329.92 K, x(Pt) 0–1	4	3
HCP_A3 phase:al-pt:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 2 calculated diagram(s)	0	2
LIQUID phase:al-pt:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 928.07–2500 K, x(Pt) 0–1	21	2

AL21PT5 (Al–Pt)

Id: phase:al-pt:al21pt5; status assigned
Structure: Li21Si5 · cF416 · F-43m (216); type st:li21si5-cf416; 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: Al 0.8077, Pt 0.1923
Stability: stable in 2 of 2 calculated diagram(s): 300–1085.55 K, x(Pt) 0.19231–0.19231
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:al-pt:al21pt5
paper: paper:10.1361/105497100770340011:Al21Pt5
tdb: tdb:AlPt-00Wu.tdb:AL21PT5, tdb:AlPt-16Liu.tdb:AL21PT5

TDB models of AL21PT5 (2): PHASE and CONSTITUENT statements as written

AlPt-00Wu.tdb: AL21PT5, type code %, sha256 ff7e2a521050dadb…

42: PHASE AL21PT5 % 2 21 5 !
43: CONST AL21PT5 : AL : PT : !

AlPt-16Liu.tdb: AL21PT5, type code %, sha256 98460d9947af8257…

65: PHASE AL21PT5 % 2 21 5 !
66: CONST AL21PT5 : AL : PT : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
cited as the source of values for this phase

AL21PT8 (Al–Pt)

Id: phase:al-pt:al21pt8; status assigned
Structure: Al21Pt8 · tI116 · I4_1/a (88); type st:al21pt8-ti116; tier B: DFT-supported (unique MP + OQMD match); confidence high
Stoichiometry: Al 0.7241, Pt 0.2759
Stability: stable in 2 of 2 calculated diagram(s): 300–1406.74 K, x(Pt) 0.27586–0.27586
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:al-pt:al21pt8
mp: mp:mp-aaaaacyg
oqmd: oqmd:oqmd-54935
paper: paper:10.1361/105497100770340011:Al21Pt8
tdb: tdb:AlPt-00Wu.tdb:AL21PT8, tdb:AlPt-16Liu.tdb:AL21PT8

TDB models of AL21PT8 (2): PHASE and CONSTITUENT statements as written

AlPt-00Wu.tdb: AL21PT8, type code %, sha256 ff7e2a521050dadb…

47: PHASE AL21PT8 % 2 21 8 !
48: CONST AL21PT8 : AL : PT : !

AlPt-16Liu.tdb: AL21PT8, type code %, sha256 98460d9947af8257…

70: PHASE AL21PT8 % 2 21 8 !
71: CONST AL21PT8 : AL : PT : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
cited as the source of values for this phase

AL2PT_C1 (Al–Pt)

Id: phase:al-pt:al2pt-c1; status assigned
Structure: CaF2 · C1 · cF12 · Fm-3m (225); type st:c1-caf2-cf12; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaacfu and oqmd-10564, space group 225
Stoichiometry: Al 0.6667, Pt 0.3333
Stability: stable in 2 of 2 calculated diagram(s): 300–1677.09 K, x(Pt) 0.33333–0.33333
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:al-pt:al2pt-c1
mp: mp:mp-aaaaacfu
oqmd: oqmd:oqmd-10564
paper: paper:10.1361/105497100770340011:Al2Pt
tdb: tdb:AlPt-00Wu.tdb:AL2PT_C1, tdb:AlPt-16Liu.tdb:AL2PT_C1

TDB models of AL2PT_C1 (2): PHASE and CONSTITUENT statements as written

AlPt-00Wu.tdb: AL2PT_C1, type code %, sha256 ff7e2a521050dadb…

52: PHASE AL2PT_C1 % 2 2 1 !
53: CONST AL2PT_C1 : AL : PT : !

AlPt-16Liu.tdb: AL2PT_C1, type code %, sha256 98460d9947af8257…

75: PHASE AL2PT_C1 % 2 2 1 !
76: CONST AL2PT_C1 : AL : PT : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
cited as the source of values for this phase

AL3PT2_D513 (Al–Pt)

Id: phase:al-pt:al3pt2-d513; status assigned
Structure: Ni2Al3 · D5_13 · hP5 · P-3m1 (164); type st:d5-13-ni2al3-hp5; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaaqdl and oqmd-10565, space group 164
Stoichiometry: Al 0.6000, Pt 0.4000
Stability: stable in 2 of 2 calculated diagram(s): 300–1795.51 K, x(Pt) 0.4–0.4
Literature: 11 values (11 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:al-pt:al3pt2-d513
mp: mp:mp-aaaaaqdl
oqmd: oqmd:oqmd-10565
paper: paper:10.1361/105497100770340011:Al3Pt2
tdb: tdb:AlPt-00Wu.tdb:AL3PT2_D513, tdb:AlPt-16Liu.tdb:AL3PT2_D513

TDB models of AL3PT2_D513 (2): PHASE and CONSTITUENT statements as written

AlPt-00Wu.tdb: AL3PT2_D513, type code %, sha256 ff7e2a521050dadb…

57: PHASE AL3PT2_D513 % 2 3 2 !
58: CONST AL3PT2_D513 : AL : PT : !

AlPt-16Liu.tdb: AL3PT2_D513, type code %, sha256 98460d9947af8257…

80: PHASE AL3PT2_D513 % 2 3 2 !
81: CONST AL3PT2_D513 : AL : PT : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
cited as the source of values for this phase

AL3PT5 (Al–Pt)

Id: phase:al-pt:al3pt5; status assigned
Structure: Ge3Rh5 · oP16 · Pbam (55); type st:ge3rh5-op16; tier B: DFT-supported (unique MP + OQMD match); confidence high
Stoichiometry: Al 0.3750, Pt 0.6250
Stability: stable in 2 of 2 calculated diagram(s): 300–1735.72 K, x(Pt) 0.625–0.625
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:al-pt:al3pt5
mp: mp:mp-aaaaacft
oqmd: oqmd:oqmd-9984
paper: paper:10.1361/105497100770340011:Al3Pt5
tdb: tdb:AlPt-00Wu.tdb:AL3PT5, tdb:AlPt-16Liu.tdb:AL3PT5

TDB models of AL3PT5 (2): PHASE and CONSTITUENT statements as written

AlPt-00Wu.tdb: AL3PT5, type code %, sha256 ff7e2a521050dadb…

67: PHASE AL3PT5 % 2 3 5 !
68: CONST AL3PT5 : AL : PT : !

AlPt-16Liu.tdb: AL3PT5, type code %, sha256 98460d9947af8257…

90: PHASE AL3PT5 % 2 3 5 !
91: CONST AL3PT5 : AL : PT : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
cited as the source of values for this phase

ALPT_B20 (Al–Pt)

Id: phase:al-pt:alpt-b20; status assigned
Structure: FeSi · B20 · cP8 · P2_13 (198); type st:b20-fesi-cp8; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaaqdk and oqmd-10562, space group 198
Stoichiometry: Al 0.5000, Pt 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–1826.41 K, x(Pt) 0.5–0.5
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:al-pt:alpt-b20
mp: mp:mp-aaaaaqdk
oqmd: oqmd:oqmd-10562
paper: paper:10.1361/105497100770340011:AlPt
tdb: tdb:AlPt-00Wu.tdb:ALPT_B20, tdb:AlPt-16Liu.tdb:ALPT_B20

TDB models of ALPT_B20 (2): PHASE and CONSTITUENT statements as written

AlPt-00Wu.tdb: ALPT_B20, type code %, sha256 ff7e2a521050dadb…

62: PHASE ALPT_B20 % 2 1 1 !
63: CONST ALPT_B20 : AL : PT : !

AlPt-16Liu.tdb: ALPT_B20, type code %, sha256 98460d9947af8257…

85: PHASE ALPT_B20 % 2 1 1 !
86: CONST ALPT_B20 : AL : PT : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
cited as the source of values for this phase

ALPT2 (Al–Pt)

Id: phase:al-pt:alpt2; status needs_review
No structure assigned. Why: mp_oqmd_space_groups_differ; no_structure_token; sgte_mmc2_rows_disagree
Candidate (dft_mp): Pnma (62) — on-hull MP AlPt2 at x(PT)=0.6667
Candidate (dft_oqmd): Pmma (51) — on-hull OQMD Al1 Pt2 at x(PT)=0.6667
Candidate (sgte_mmc2): Co2Si · C37 · oP12 · Pnma (62) — Hallstedt 2025 mmc2 row for ALPT2: AlPt2 (HT)
Candidate (sgte_mmc2): GaPt2 · oP24 · Pmma (51) — Hallstedt 2025 mmc2 row for ALPT2: AlPt2 (LT)
Candidate (tdb_comment): GaPt2 · oP24 · Pmma — AlPt-16Liu.tdb: 'Prototype GaPt2 (oP24, Pmma), LT and Co2Si (oP12, Pnma, C23), HT'
Stoichiometry: Al 0.3333, Pt 0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300–1621.35 K, x(Pt) 0.66667–0.66667
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:al-pt:alpt2
tdb: tdb:AlPt-16Liu.tdb:ALPT2

TDB models of ALPT2 (1): PHASE and CONSTITUENT statements as written

AlPt-16Liu.tdb: ALPT2, type code %, sha256 98460d9947af8257…

95: PHASE ALPT2 % 2 1 2 !
96: CONST ALPT2 : AL : PT : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase

ALPT3_L12 (Al–Pt)

Id: phase:al-pt:alpt3-l12; status assigned
Structure: AuCu3 · L1_2 · cP4 · Pm-3m (221); type st:l1-2-aucu3-cp4; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in AlPt-00Wu.tdb also describes the disordered state
Stability: stable in 1 of 1 calculated diagram(s): 300–1824.92 K, x(Pt) 0.74881–0.78294
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:al-pt:alpt3-l12
paper: paper:10.1361/105497100770340011:AlPt3
tdb: tdb:AlPt-00Wu.tdb:ALPT3_L12

TDB models of ALPT3_L12 (1): PHASE and CONSTITUENT statements as written

AlPt-00Wu.tdb: ALPT3_L12, type code %, sha256 ff7e2a521050dadb…

72: PHASE ALPT3_L12 % 2 1 3 !
73: CONST ALPT3_L12 : AL% PT : AL PT% : !

Example references (2 of 2; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
cited as the source of values for this phase

BCC_A2 (Al–Pt)

Id: phase:al-pt: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 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:al-pt:bcc-a2
tdb: tdb:AlPt-00Wu.tdb:BCC_A2, tdb:AlPt-16Liu.tdb:A2_BCC, tdb:AlPt-16Liu.tdb:BCC_A2

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

AlPt-00Wu.tdb: BCC_A2, type code %B, sha256 ff7e2a521050dadb…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : AL PT : VA : !

AlPt-16Liu.tdb: A2_BCC, type code %B, sha256 98460d9947af8257…

50: PHASE A2_BCC %B 2 1 3 !
51: CONST A2_BCC : AL PT : VA : !

AlPt-16Liu.tdb: BCC_A2, type code %B, sha256 98460d9947af8257…

45: PHASE BCC_A2 %B 2 1 3 !
46: CONST BCC_A2 : AL PT : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase

B2_BCC (Al–Pt)

Id: phase:al-pt:bcc-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Caveat: AlPt-16Liu.tdb: ordered phase with disordered part A2_BCC (order/disorder model)
Caveat: partitioned order/disorder model in AlPt-16Liu.tdb also describes the disordered state
Stability: stable in 1 of 1 calculated diagram(s): 1534.5–1817.32 K, x(Pt) 0.49818–0.55566
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:al-pt:bcc-b2
tdb: tdb:AlPt-16Liu.tdb:B2_BCC

TDB models of B2_BCC (1): PHASE and CONSTITUENT statements as written

AlPt-16Liu.tdb: B2_BCC, type code %BO, sha256 98460d9947af8257…

55: PHASE B2_BCC %BO 3 0.5 0.5 3 !
56: CONST B2_BCC : AL% PT : AL PT% : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase

FCC_4SL (Al–Pt)

Id: phase:al-pt:fcc-4sl; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:order_disorder_ambiguity; order_disorder_ambiguity:AlPt-16Liu.tdb_model_is_partitioned; sgte_mmc2_row_disagrees_with_name:FCC_4SL; unrecognised_name_tokens:4SL
Candidate (dft_mp): I4_1/a (88) — on-hull MP Al21Pt8 at x(PT)=0.2759
Candidate (dft_mp): Fm-3m (225) — on-hull MP Al2Pt at x(PT)=0.3333
Candidate (dft_mp): P-3m1 (164) — on-hull MP Al3Pt2 at x(PT)=0.4000
Candidate (dft_mp): Pbam (55) — on-hull MP Al3Pt5 at x(PT)=0.6250
Candidate (dft_mp): P2_13 (198) — on-hull MP AlPt at x(PT)=0.5000
Candidate (dft_mp): Pnma (62) — on-hull MP AlPt2 at x(PT)=0.6667
Candidate (dft_oqmd): P213 (198) — on-hull OQMD Al1 Pt1 at x(PT)=0.5000
Candidate (dft_oqmd): Pmma (51) — on-hull OQMD Al1 Pt2 at x(PT)=0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300–2499.43 K, x(Pt) 0–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:al-pt:fcc-4sl
tdb: tdb:AlPt-16Liu.tdb:FCC_4SL

TDB models of FCC_4SL (1): PHASE and CONSTITUENT statements as written

AlPt-16Liu.tdb: FCC_4SL, type code %AY, sha256 98460d9947af8257…

40: PHASE FCC_4SL:F %AY 5 0.25 0.25 0.25 0.25 1 !
41: CONST FCC_4SL:F : AL PT% : AL PT% : AL PT% : AL% PT : VA :  !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase

FCC_A1 (Al–Pt)

Id: phase:al-pt: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): 300–2329.92 K, x(Pt) 0–1
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:al-pt:fcc-a1
paper: paper:10.1361/105497100770340011:(Al), paper:10.1361/105497100770340011:(Pt)
tdb: tdb:AlPt-00Wu.tdb:FCC_A1, tdb:AlPt-16Liu.tdb:A1_FCC, tdb:AlPt-16Liu.tdb:FCC_A1

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

AlPt-00Wu.tdb: FCC_A1, type code %A, sha256 ff7e2a521050dadb…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : AL PT : VA : !

AlPt-16Liu.tdb: A1_FCC, type code %A, sha256 98460d9947af8257…

35: PHASE A1_FCC %A 2 1 1 !
36: CONST A1_FCC : AL PT : VA : !

AlPt-16Liu.tdb: FCC_A1, type code %A, sha256 98460d9947af8257…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : AL PT : VA : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
cited as the source of values for this phase

HCP_A3 (Al–Pt)

Id: phase:al-pt: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 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:al-pt:hcp-a3
tdb: tdb:AlPt-00Wu.tdb:HCP_A3, tdb:AlPt-16Liu.tdb:HCP_A3

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

AlPt-00Wu.tdb: HCP_A3, type code %A, sha256 ff7e2a521050dadb…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : AL PT : VA : !

AlPt-16Liu.tdb: HCP_A3, type code %A, sha256 98460d9947af8257…

60: PHASE HCP_A3 %A 2 1 0.5 !
61: CONST HCP_A3 : AL PT : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase

LIQUID (Al–Pt)

Id: phase:al-pt:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 928.07–2500 K, x(Pt) 0–1
Literature: 21 values (21 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:al-pt:liquid
paper: paper:10.1361/105497100770340011:L
tdb: tdb:AlPt-00Wu.tdb:LIQUID, tdb:AlPt-16Liu.tdb:LIQUID

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

AlPt-00Wu.tdb: LIQUID, type code %, sha256 ff7e2a521050dadb…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : AL PT : !

AlPt-16Liu.tdb: LIQUID, type code %, sha256 98460d9947af8257…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : AL PT : !

Example references (3 of 3; assessments first):

doi:10.1361/105497100770340011 Kaisheng Wu, Zhanpeng Jin, Thermodynamic assessment of the Al-Pt binary system, JPE 21, 221-226 (2000).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2016.08.002 X.L. Liu, G. Lindwall, R. Otis, H.Kim, Z.-K. Liu, Calphad, 55, 88-102(2016).
assessment that models this phase
doi:10.1002/zaac.19643290116 Reinhold Huch, Wilhelm Klemm, Das System Platin–Aluminium, Zeitschrift anorg allge chemie 329, 123-135 (1964).
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}
}