C–Y phases

13 phases (tier A 9, tier C 1, liquid 1, needs_review 2); 11 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–Y system page · Markdown · field reference

Phases of the C–Y system (13)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:c-y:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	not stable in 2 calculated diagram(s)	0	2
GRAPHITE_A9 phase:c-y:a9-graphite	C (graphite) · A9 · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–4000 K, x(C) 1–1	0	1
BCC_A2 phase:c-y:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1759.19–1860 K, x(C) 0–0.0645	0	2
FCC_A1 phase:c-y:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 2 calculated diagram(s)	0	2
GRAPHITE phase:c-y:graphite	C (graphite) · A9 · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–4000 K, x(C) 1–1	0	1
HCP_A3 phase:c-y:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1863.42 K, x(C) 0–0.06942	0	2
LIQUID phase:c-y:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 1783.77–4000 K, x(C) 0–0.86706	0	2
Y15C19_ALPHA phase:c-y:y15c19-alpha	alpha-Y15C19 · oP18 · Pbam (55)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1577.78 K, x(C) 0.54024–0.55882	0	2
Y15C19_BETA phase:c-y:y15c19-beta		needs_review	stable in 2 of 2 calculated diagram(s): 1577–1802.7 K, x(C) 0.55247–0.55882	0	2
Y2C3_BETA phase:c-y:y2c3-beta		needs_review	stable in 2 of 2 calculated diagram(s): 1419.06–1939.61 K, x(C) 0.5625–0.59934	0	2
Y2C3_D5C phase:c-y:y2c3-d5c	Pu2C3 · D5_c · cI40 · I-43d (220)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1458.9 K, x(C) 0.56893–0.6	0	2
YC_B1 phase:c-y:yc-b1	NaCl · B1 · cF8 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 362.2–2671.34 K, x(C) 0.17039–0.66533	6	2
YC2_C11A phase:c-y:yc2-c11a	CaC2 · C11_a · tI6 · I4/mmm (139)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1614.54 K, x(C) 0.66667–0.66667	0	2

DIAMOND_A4 (C–Y)

Id: phase:c-y: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-y:a4-diamond
tdb: tdb:YC-19Xu.tdb:DIAMOND_A4, tdb:YC-95Gro-LB.tdb:DIAMOND_A4

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

YC-19Xu.tdb: DIAMOND_A4, type code %, sha256 12bad06794b6d2f9…

48: PHASE DIAMOND_A4 % 1 1 !
49: CONST DIAMOND_A4 : C : !

YC-95Gro-LB.tdb: DIAMOND_A4, type code %, sha256 4de222c3b8683308…

56: PHASE DIAMOND_A4 % 1 1 !
57: CONST DIAMOND_A4 : C : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

GRAPHITE_A9 (C–Y)

Id: phase:c-y: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 1 of 1 calculated diagram(s): 300–4000 K, x(C) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:c-y:a9-graphite
tdb: tdb:YC-95Gro-LB.tdb:GRAPHITE_A9

TDB models of GRAPHITE_A9 (1): PHASE and CONSTITUENT statements as written

YC-95Gro-LB.tdb: GRAPHITE_A9, type code %, sha256 4de222c3b8683308…

61: PHASE GRAPHITE_A9 % 1 1 !
62: CONST GRAPHITE_A9 : C : !

Example references (1 of 1; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase

BCC_A2 (C–Y)

Id: phase:c-y: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): 1759.19–1860 K, x(C) 0–0.0645
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-y:bcc-a2
tdb: tdb:YC-19Xu.tdb:BCC_A2, tdb:YC-95Gro-LB.tdb:BCC_A2

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

YC-19Xu.tdb: BCC_A2, type code %B, sha256 12bad06794b6d2f9…

38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : Y : C VA% : !

YC-95Gro-LB.tdb: BCC_A2, type code %B, sha256 4de222c3b8683308…

46: PHASE BCC_A2 %B 2 1 3 !
47: CONST BCC_A2 : Y : C VA% : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

FCC_A1 (C–Y)

Id: phase:c-y:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; 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:c-y:fcc-a1
tdb: tdb:YC-19Xu.tdb:FCC_A1, tdb:YC-95Gro-LB.tdb:FCC_A1

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

YC-19Xu.tdb: FCC_A1, type code %A, sha256 12bad06794b6d2f9…

33: PHASE FCC_A1 %A 2 1 1 !
34: CONST FCC_A1 : Y : C% VA : !

YC-95Gro-LB.tdb: FCC_A1, type code %A, sha256 4de222c3b8683308…

41: PHASE FCC_A1 %A 2 1 1 !
42: CONST FCC_A1 : Y : C% VA : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

GRAPHITE (C–Y)

Id: phase:c-y: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 1 of 1 calculated diagram(s): 300–4000 K, x(C) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:c-y:graphite
tdb: tdb:YC-19Xu.tdb:GRAPHITE

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

YC-19Xu.tdb: GRAPHITE, type code %, sha256 12bad06794b6d2f9…

53: PHASE GRAPHITE % 1 1 !
54: CONST GRAPHITE : C : !

Example references (1 of 1; assessments first):

doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

HCP_A3 (C–Y)

Id: phase:c-y: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): 300–1863.42 K, x(C) 0–0.06942
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-y:hcp-a3
tdb: tdb:YC-19Xu.tdb:HCP_A3, tdb:YC-95Gro-LB.tdb:HCP_A3

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

YC-19Xu.tdb: HCP_A3, type code %A, sha256 12bad06794b6d2f9…

43: PHASE HCP_A3 %A 2 1 0.5 !
44: CONST HCP_A3 : Y : C VA% : !

YC-95Gro-LB.tdb: HCP_A3, type code %A, sha256 4de222c3b8683308…

51: PHASE HCP_A3 %A 2 1 0.5 !
52: CONST HCP_A3 : Y : C VA% : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

LIQUID (C–Y)

Id: phase:c-y:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 1783.77–4000 K, x(C) 0–0.86706
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-y:liquid
tdb: tdb:YC-19Xu.tdb:LIQUID, tdb:YC-95Gro-LB.tdb:LIQUID

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

YC-19Xu.tdb: LIQUID, type code %, sha256 12bad06794b6d2f9…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : C Y : !

YC-95Gro-LB.tdb: LIQUID, type code %, sha256 4de222c3b8683308…

36: PHASE LIQUID:L % 1 1 !
37: CONST LIQUID:L : C Y : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

Y15C19_ALPHA (C–Y)

Id: phase:c-y:y15c19-alpha; status assigned
Structure: alpha-Y15C19 · oP18 · Pbam (55); type st:alpha-y15c19-op18; 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, off_stoichiometric_model); structure as stated in the SGTE crystallographic table for this phase name and system
Stability: stable in 2 of 2 calculated diagram(s): 300–1577.78 K, x(C) 0.54024–0.55882
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-y:y15c19-alpha
tdb: tdb:YC-19Xu.tdb:Y15C19_ALPHA, tdb:YC-95Gro-LB.tdb:Y15C19_ALPHA

TDB models of Y15C19_ALPHA (2): PHASE and CONSTITUENT statements as written

YC-19Xu.tdb: Y15C19_ALPHA, type code %, sha256 12bad06794b6d2f9…

63: PHASE Y15C19_ALPHA % 2 15 19 !
64: CONST Y15C19_ALPHA : Y : C% VA : !

YC-95Gro-LB.tdb: Y15C19_ALPHA, type code %, sha256 4de222c3b8683308…

71: PHASE Y15C19_ALPHA % 2 15 19 !
72: CONST Y15C19_ALPHA : Y : C : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

Y15C19_BETA (C–Y)

Id: phase:c-y:y15c19-beta; status needs_review
No structure assigned. Why: no_structure_token; off_stoichiometric_model; sgte_mmc2_row_incomplete
Candidate (sgte_mmc2): (beta-Y15C19) — Hallstedt 2025 mmc2 row for Y15C19_BETA: beta-Y15C19
Stability: stable in 2 of 2 calculated diagram(s): 1577–1802.7 K, x(C) 0.55247–0.55882
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-y:y15c19-beta
tdb: tdb:YC-19Xu.tdb:Y15C19_BETA, tdb:YC-95Gro-LB.tdb:Y15C19_BETA

TDB models of Y15C19_BETA (2): PHASE and CONSTITUENT statements as written

YC-19Xu.tdb: Y15C19_BETA, type code %, sha256 12bad06794b6d2f9…

68: PHASE Y15C19_BETA % 2 15 19 !
69: CONST Y15C19_BETA : Y : C% VA : !

YC-95Gro-LB.tdb: Y15C19_BETA, type code %, sha256 4de222c3b8683308…

76: PHASE Y15C19_BETA % 2 15 19 !
77: CONST Y15C19_BETA : Y : C : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

Y2C3_BETA (C–Y)

Id: phase:c-y:y2c3-beta; status needs_review
No structure assigned. Why: no_structure_token; off_stoichiometric_model; sgte_mmc2_row_incomplete
Candidate (sgte_mmc2): (beta-Y2C3) — Hallstedt 2025 mmc2 row for Y2C3_BETA: beta-Y2C3
Stability: stable in 2 of 2 calculated diagram(s): 1419.06–1939.61 K, x(C) 0.5625–0.59934
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-y:y2c3-beta
tdb: tdb:YC-19Xu.tdb:Y2C3_BETA, tdb:YC-95Gro-LB.tdb:Y2C3_BETA

TDB models of Y2C3_BETA (2): PHASE and CONSTITUENT statements as written

YC-19Xu.tdb: Y2C3_BETA, type code %, sha256 12bad06794b6d2f9…

78: PHASE Y2C3_BETA % 3 2 2 1 !
79: CONST Y2C3_BETA : Y% VA : C : C% VA : !

YC-95Gro-LB.tdb: Y2C3_BETA, type code %, sha256 4de222c3b8683308…

86: PHASE Y2C3_BETA % 3 2 2 1 !
87: CONST Y2C3_BETA : Y : C : C VA : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

Y2C3_D5C (C–Y)

Id: phase:c-y:y2c3-d5c; status assigned
Structure: Pu2C3 · D5_c · cI40 · I-43d (220); type st:d5-c-pu2c3-ci40; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 300–1458.9 K, x(C) 0.56893–0.6
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-y:y2c3-d5c
tdb: tdb:YC-19Xu.tdb:Y2C3_D5C, tdb:YC-95Gro-LB.tdb:Y2C3_D5C

TDB models of Y2C3_D5C (2): PHASE and CONSTITUENT statements as written

YC-19Xu.tdb: Y2C3_D5C, type code %, sha256 12bad06794b6d2f9…

73: PHASE Y2C3_D5C % 3 2 2 1 !
74: CONST Y2C3_D5C : Y% VA : C : C% VA : !

YC-95Gro-LB.tdb: Y2C3_D5C, type code %, sha256 4de222c3b8683308…

81: PHASE Y2C3_D5C % 3 2 2 1 !
82: CONST Y2C3_D5C : Y : C : C VA : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase

YC_B1 (C–Y)

Id: phase:c-y:yc-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 2 of 2 calculated diagram(s): 362.2–2671.34 K, x(C) 0.17039–0.66533
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:c-y:yc-b1
paper: paper:10.1016/0925-8388(94)06028-2:γ
tdb: tdb:YC-19Xu.tdb:YC_B1, tdb:YC-95Gro-LB.tdb:YC_B1

TDB models of YC_B1 (2): PHASE and CONSTITUENT statements as written

YC-19Xu.tdb: YC_B1, type code %, sha256 12bad06794b6d2f9…

58: PHASE YC_B1 % 2 1 1 !
59: CONST YC_B1 : Y : C C2 VA : !

YC-95Gro-LB.tdb: YC_B1, type code %, sha256 4de222c3b8683308…

66: PHASE YC_B1 % 2 1 1 !
67: CONST YC_B1 : Y : C C2 VA : !

Example references (5 of 5; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
assessment that models this phase
doi:10.1016/0925-8388(94)90783-8 S.V. Meschel, O.J. Kleppa, Standard enthalpies of formation of some rare earth carbides by direct synthesis calorimetry, Journal of Alloys and Compounds 205, 165-168 (1994).
cited as the source of values for this phase
doi:10.1063/1.1672942 Fred J. Kohl, Carl A. Stearns, Vaporization Thermodynamics of Yttrium Dicarbide–Carbon System and Dissociation Energy of Yttrium Dicarbide and Tetracarbide, The Journal of Chemical Physics 52, 6310-6315 (1970).
cited as the source of values for this phase
doi:10.1063/1.1696715 G. De Maria, M. Guido, L. Malaspina, B. Pesce, Mass-Spectrometric Study of the Yttrium—Carbon System, The Journal of Chemical Physics 43, 4449-4452 (1965).
cited as the source of values for this phase

YC2_C11A (C–Y)

Id: phase:c-y:yc2-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, Y 0.3333
Stability: stable in 2 of 2 calculated diagram(s): 300–1614.54 K, x(C) 0.66667–0.66667
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:c-y:yc2-c11a
tdb: tdb:YC-19Xu.tdb:YC2_C11A, tdb:YC-95Gro-LB.tdb:YC2_C11A

TDB models of YC2_C11A (2): PHASE and CONSTITUENT statements as written

YC-19Xu.tdb: YC2_C11A, type code %, sha256 12bad06794b6d2f9…

83: PHASE YC2_C11A % 2 1 2 !
84: CONST YC2_C11A : Y : C : !

YC-95Gro-LB.tdb: YC2_C11A, type code %, sha256 4de222c3b8683308…

91: PHASE YC2_C11A % 2 1 2 !
92: CONST YC2_C11A : Y : C : !

Example references (2 of 2; assessments first):

doi:10.1016/0925-8388(94)06028-2 J. Gröbner, H.-L. Lukas, F. Aldinger, Thermodynamic calculations in the YAlC system, Journal of Alloys and Compounds 220, 8-14 (1995).
assessment that models this phase
doi:10.1016/j.jeurceramsoc.2019.07.012 Kai Xu, Houke Zou, Keke Chang, Zixuan Deng, Xiaobing Zhou, Yeyan Huang et al., Thermodynamic description of the sintering aid system in silicon carbide ceramics with the addition of yttrium, Journal of the European Ceramic Society 39, 4510-4519 (2019).
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}
}