C–Pu phases

14 phases (tier A 8, liquid 1, needs_review 5); 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 · C–Pu system page · Markdown · field reference

Phases of the C–Pu system (14)
Phase	Structure	Basis	Stability (calculated)	TDB models
DIAMOND_A4 phase:c-pu:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	not stable in 2 calculated diagram(s)	2
TETRAGONAL_A6 phase:c-pu:a6-tetragonal	In · A6 · tI2 · I4/mmm (139)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 610.07–755.67 K, x(C) 0–0	2
GRAPHITE_A9 phase:c-pu:a9-graphite	C (graphite) · A9 · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–4000 K, x(C) 1–1	2
BCC_A2 phase:c-pu:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 755.67–2297.27 K, x(C) 0–0	2
FCC_A1 phase:c-pu:fcc-a1		needs_review	stable in 2 of 2 calculated diagram(s): 300–2518.39 K, x(C) 0–0.66316	2
HCP_A3 phase:c-pu:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	1
LIQUID phase:c-pu:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 900.32–4000 K, x(C) 0–0.85201	2
ALPHA_PU phase:c-pu:pu-alpha		needs_review	stable in 2 of 2 calculated diagram(s): 300–397.62 K, x(C) 0–0	2
BETA_PU phase:c-pu:pu-beta		needs_review	stable in 2 of 2 calculated diagram(s): 397.62–487.9 K, x(C) 0–0	2
GAMMA_PU phase:c-pu:pu-gamma		needs_review	stable in 2 of 2 calculated diagram(s): 487.9–610.07 K, x(C) 0–0	2
PU2C3_D5C phase:c-pu:pu2c3-d5c	Pu2C3 · D5_c · cI40 · I-43d (220)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–2370.28 K, x(C) 0.6–0.6	2
PU3C2 phase:c-pu:pu3c2		needs_review	stable in 2 of 2 calculated diagram(s): 300–910 K, x(C) 0.4–0.4	2
PUC_B1 phase:c-pu:puc-b1	NaCl · B1 · cF8 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1928.36 K, x(C) 0.43584–0.49283	1
PUC2_C11A phase:c-pu:puc2-c11a	CaC2 · C11_a · tI6 · I4/mmm (139)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1991.32–2488.55 K, x(C) 0.66667–0.66667	1

DIAMOND_A4 (C–Pu)

Id: phase:c-pu:a4-diamond; status assigned
Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type st:a4-c-diamond-cf8; tier A: standard phase name; confidence high
Stoichiometry: C 1.0000
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:c-pu:a4-diamond
tdb: tdb:PuC-08Fis.tdb:DIAMOND_A4, tdb:PuC-11Gue.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (2): PHASE and CONSTITUENT statements as written

PuC-08Fis.tdb: DIAMOND_A4, type code %, sha256 06c1c7c1016da999…

63: PHASE DIAMOND_A4 % 1 1 !
64: CONST DIAMOND_A4 : C : !

PuC-11Gue.tdb: DIAMOND_A4, type code %, sha256 2604e0ec4ac9b41e…

60: PHASE DIAMOND_A4 % 1 1 !
61: CONST DIAMOND_A4 : C : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

TETRAGONAL_A6 (C–Pu)

Id: phase:c-pu:a6-tetragonal; status assigned
Structure: In · A6 · tI2 · I4/mmm (139); type st:a6-in-ti2; tier A: standard phase name; confidence high
Stoichiometry: Pu 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 610.07–755.67 K, x(C) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:a6-tetragonal
tdb: tdb:PuC-08Fis.tdb:TETRAGONAL_A6, tdb:PuC-11Gue.tdb:TETRAGONAL_A6

TDB models of TETRAGONAL_A6 (2): PHASE and CONSTITUENT statements as written

PuC-08Fis.tdb: TETRAGONAL_A6, type code %, sha256 06c1c7c1016da999…

43: PHASE TETRAGONAL_A6 % 1 1 !
44: CONST TETRAGONAL_A6 : PU : !

PuC-11Gue.tdb: TETRAGONAL_A6, type code %, sha256 2604e0ec4ac9b41e…

40: PHASE TETRAGONAL_A6 % 1 1 !
41: CONST TETRAGONAL_A6 : PU : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

GRAPHITE_A9 (C–Pu)

Id: phase:c-pu:a9-graphite; status assigned
Structure: C (graphite) · A9 · hP4 · P6_3/mmc (194); type st:a9-c-graphite-hp4; tier A: standard phase name; confidence high
Stoichiometry: C 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–4000 K, x(C) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:a9-graphite
tdb: tdb:PuC-08Fis.tdb:GRAPHITE_A9, tdb:PuC-11Gue.tdb:GRAPHITE_A9

TDB models of GRAPHITE_A9 (2): PHASE and CONSTITUENT statements as written

PuC-08Fis.tdb: GRAPHITE_A9, type code %, sha256 06c1c7c1016da999…

68: PHASE GRAPHITE_A9 % 1 1 !
69: CONST GRAPHITE_A9 : C : !

PuC-11Gue.tdb: GRAPHITE_A9, type code %, sha256 2604e0ec4ac9b41e…

65: PHASE GRAPHITE_A9 % 1 1 !
66: CONST GRAPHITE_A9 : C : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

BCC_A2 (C–Pu)

Id: phase:c-pu:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stoichiometry: Pu 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 755.67–2297.27 K, x(C) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:bcc-a2
tdb: tdb:PuC-08Fis.tdb:BCC_A2, tdb:PuC-11Gue.tdb:BCC_A2

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

PuC-08Fis.tdb: BCC_A2, type code %B, sha256 06c1c7c1016da999…

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

PuC-11Gue.tdb: BCC_A2, type code %B, sha256 2604e0ec4ac9b41e…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : PU : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

FCC_A1 (C–Pu)

Id: phase:c-pu:fcc-a1; status needs_review
No structure assigned. Why: sgte_mmc2_row_disagrees_with_name:FCC_A1; sgte_mmc2_rows_disagree
Candidate (name_token): Cu · A1 · cF4 · Fm-3m (225) — Strukturbericht/word 'A1' in the TDB name
Candidate (sgte_mmc2): NaCl · B1 · cF8 · Fm-3m (225) — Hallstedt 2025 mmc2 row for FCC_A1: CrN, HfC, HfN, Mo10C7, MoN, NbC, NbN, PdH, PuC, TaC, TaN, TiC, TiN, UC, VC, VN, WC_x, WN_x, ZrC, ZrN
Candidate (sgte_mmc2): CaC2 · C11_a · tI6 · I4/mmm (139) — Hallstedt 2025 mmc2 row for FCC_A1: PuC2
Stability: stable in 2 of 2 calculated diagram(s): 300–2518.39 K, x(C) 0–0.66316
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:fcc-a1
tdb: tdb:PuC-08Fis.tdb:FCC_A1, tdb:PuC-11Gue.tdb:FCC_A1

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

PuC-08Fis.tdb: FCC_A1, type code %A, sha256 06c1c7c1016da999…

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

PuC-11Gue.tdb: FCC_A1, type code %A, sha256 2604e0ec4ac9b41e…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : PU : C C2 VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

HCP_A3 (C–Pu)

Id: phase:c-pu: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: Pu 1.0000
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:c-pu:hcp-a3
tdb: tdb:PuC-08Fis.tdb:HCP_A3

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

PuC-08Fis.tdb: HCP_A3, type code %A, sha256 06c1c7c1016da999…

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

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase

LIQUID (C–Pu)

Id: phase:c-pu:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 900.32–4000 K, x(C) 0–0.85201
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:liquid
tdb: tdb:PuC-08Fis.tdb:LIQUID, tdb:PuC-11Gue.tdb:LIQUID

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

PuC-08Fis.tdb: LIQUID, type code %, sha256 06c1c7c1016da999…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : C PU : !

PuC-11Gue.tdb: LIQUID, type code %, sha256 2604e0ec4ac9b41e…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : C PU : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

ALPHA_PU (C–Pu)

Id: phase:c-pu:pu-alpha; status needs_review
No structure assigned. Why: no_structure_token; unary_composition
Candidate (sgte_mmc2): alpha-Pu · mP16 · P2_1/m (11) — Hallstedt 2025 mmc2 row for ALPHA_PU: Pu (alpha)
Candidate (tdb_comment): alpha-Pu · mP16 · P2_1/m — PuC-08Fis.tdb: 'Prototype alpha-Pu (mP16, P2_1/m)'
Candidate (tdb_comment): alpha-Pu · mP16 · P2_1/m — PuC-11Gue.tdb: 'Prototype alpha-Pu (mP16, P2_1/m)'
Stoichiometry: Pu 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–397.62 K, x(C) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:pu-alpha
tdb: tdb:PuC-08Fis.tdb:ALPHA_PU, tdb:PuC-11Gue.tdb:ALPHA_PU

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

PuC-08Fis.tdb: ALPHA_PU, type code %, sha256 06c1c7c1016da999…

48: PHASE ALPHA_PU % 1 1 !
49: CONST ALPHA_PU : PU : !

PuC-11Gue.tdb: ALPHA_PU, type code %, sha256 2604e0ec4ac9b41e…

45: PHASE ALPHA_PU % 1 1 !
46: CONST ALPHA_PU : PU : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

BETA_PU (C–Pu)

Id: phase:c-pu:pu-beta; status needs_review
No structure assigned. Why: no_structure_token; unary_composition
Candidate (sgte_mmc2): beta-Pu · mC34 · C2/m (12) — Hallstedt 2025 mmc2 row for BETA_PU: Pu (beta)
Candidate (tdb_comment): beta-Pu · mC34 · C2/m — PuC-08Fis.tdb: 'Prototype beta-Pu (mC34, C2/m)'
Candidate (tdb_comment): beta-Pu · mC34 · C2/m — PuC-11Gue.tdb: 'Prototype beta-Pu (mC34, C2/m)'
Stoichiometry: Pu 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 397.62–487.9 K, x(C) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:pu-beta
tdb: tdb:PuC-08Fis.tdb:BETA_PU, tdb:PuC-11Gue.tdb:BETA_PU

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

PuC-08Fis.tdb: BETA_PU, type code %, sha256 06c1c7c1016da999…

53: PHASE BETA_PU % 1 1 !
54: CONST BETA_PU : PU : !

PuC-11Gue.tdb: BETA_PU, type code %, sha256 2604e0ec4ac9b41e…

50: PHASE BETA_PU % 1 1 !
51: CONST BETA_PU : PU : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

GAMMA_PU (C–Pu)

Id: phase:c-pu:pu-gamma; status needs_review
No structure assigned. Why: no_structure_token; unary_composition
Candidate (sgte_mmc2): gamma-Pu · oF8 · Fddd (70) — Hallstedt 2025 mmc2 row for GAMMA_PU: Hg4In, Pu (gamma)
Candidate (tdb_comment): gamma-Pu · oF8 · Fddd — PuC-08Fis.tdb: 'Prototype gamma-Pu (oF8, Fddd)'
Candidate (tdb_comment): gamma-Pu · oF8 · Fddd — PuC-11Gue.tdb: 'Prototype gamma-Pu (oF8, Fddd)'
Stoichiometry: Pu 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 487.9–610.07 K, x(C) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:pu-gamma
tdb: tdb:PuC-08Fis.tdb:GAMMA_PU, tdb:PuC-11Gue.tdb:GAMMA_PU

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

PuC-08Fis.tdb: GAMMA_PU, type code %, sha256 06c1c7c1016da999…

58: PHASE GAMMA_PU % 1 1 !
59: CONST GAMMA_PU : PU : !

PuC-11Gue.tdb: GAMMA_PU, type code %, sha256 2604e0ec4ac9b41e…

55: PHASE GAMMA_PU % 1 1 !
56: CONST GAMMA_PU : PU : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

PU2C3_D5C (C–Pu)

Id: phase:c-pu:pu2c3-d5c; status assigned
Structure: Pu2C3 · D5_c · cI40 · I-43d (220); type st:d5-c-pu2c3-ci40; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaabdlb and oqmd-3465, space group 220
Stoichiometry: C 0.6000, Pu 0.4000
Stability: stable in 2 of 2 calculated diagram(s): 300–2370.28 K, x(C) 0.6–0.6
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:c-pu:pu2c3-d5c
mp: mp:mp-aaaabdlb
oqmd: oqmd:oqmd-3465
tdb: tdb:PuC-08Fis.tdb:PU2C3_D5C, tdb:PuC-11Gue.tdb:PU2C3_D5C

TDB models of PU2C3_D5C (2): PHASE and CONSTITUENT statements as written

PuC-08Fis.tdb: PU2C3_D5C, type code %, sha256 06c1c7c1016da999…

83: PHASE PU2C3_D5C % 2 0.4 0.6 !
84: CONST PU2C3_D5C : PU : C : !

PuC-11Gue.tdb: PU2C3_D5C, type code %, sha256 2604e0ec4ac9b41e…

75: PHASE PU2C3_D5C % 2 2 3 !
76: CONST PU2C3_D5C : PU : C : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

PU3C2 (C–Pu)

Id: phase:c-pu:pu3c2; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (sgte_mmc2): (Pu3C2) — Hallstedt 2025 mmc2 row for PU3C2: Pu3C2
Stoichiometry: C 0.4000, Pu 0.6000
Stability: stable in 2 of 2 calculated diagram(s): 300–910 K, x(C) 0.4–0.4
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-pu:pu3c2
tdb: tdb:PuC-08Fis.tdb:PU3C2, tdb:PuC-11Gue.tdb:PU3C2

TDB models of PU3C2 (2): PHASE and CONSTITUENT statements as written

PuC-08Fis.tdb: PU3C2, type code %, sha256 06c1c7c1016da999…

78: PHASE PU3C2 % 2 0.6 0.4 !
79: CONST PU3C2 : PU : C : !

PuC-11Gue.tdb: PU3C2, type code %, sha256 2604e0ec4ac9b41e…

70: PHASE PU3C2 % 2 3 2 !
71: CONST PU3C2 : PU : C : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.07.033 Christine Guéneau, Nathalie Dupin, Bo Sundman, Chantal Martial, Jean-Christophe Dumas, Stéphane Gossé et al., Thermodynamic modelling of advanced oxide and carbide nuclear fuels: Description of the U–Pu–O–C systems, Journal of Nuclear Materials 419, 145-167 (2011).
assessment that models this phase

PUC_B1 (C–Pu)

Id: phase:c-pu:puc-b1; status assigned
Structure: NaCl · B1 · cF8 · Fm-3m (225); type st:b1-nacl-cf8; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–1928.36 K, x(C) 0.43584–0.49283
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:c-pu:puc-b1
tdb: tdb:PuC-08Fis.tdb:PUC_B1

TDB models of PUC_B1 (1): PHASE and CONSTITUENT statements as written

PuC-08Fis.tdb: PUC_B1, type code %, sha256 06c1c7c1016da999…

73: PHASE PUC_B1 % 2 1 1 !
74: CONST PUC_B1 : PU : C% VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
assessment that models this phase

PUC2_C11A (C–Pu)

Id: phase:c-pu:puc2-c11a; status assigned
Structure: CaC2 · C11_a · tI6 · I4/mmm (139); type st:c11-a-cac2-ti6; tier A: standard phase name; confidence high
Stoichiometry: C 0.6667, Pu 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 1991.32–2488.55 K, x(C) 0.66667–0.66667
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:c-pu:puc2-c11a
tdb: tdb:PuC-08Fis.tdb:PUC2_C11A

TDB models of PUC2_C11A (1): PHASE and CONSTITUENT statements as written

PuC-08Fis.tdb: PUC2_C11A, type code %, sha256 06c1c7c1016da999…

88: PHASE PUC2_C11A % 2 1 2 !
89: CONST PUC2_C11A : PU : C : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2007.12.004 Evelyne Fischer, Thermodynamic modeling of the C–Pu system, Calphad 32, 371-377 (2008).
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}
}