Ca–Si phases

11 phases (tier A 8, tier C 2, liquid 1); 10 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 · Ca–Si system page · Markdown · field reference

Phases of the Ca–Si system (11)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:ca-si:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–2498.95 K, x(Si) 1–1	3	2
BCC_A2 phase:ca-si:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 716.03–1115 K, x(Si) 0–0	4	2
CA14SI19 phase:ca-si:ca14si19	Ca14Si19 · hR66 · R-3c (167)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 1149.13–1356.72 K, x(Si) 0.57576–0.57576	11	1
CA2SI_C37 phase:ca-si:ca2si-c37	Co2Si · C37 · oP12 · Pnma (62)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1576.82 K, x(Si) 0.33333–0.33333	18	2
CA3SI4 phase:ca-si:ca3si4	Ca3Si4 · hP42 · P6_3/m (176)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1206.52 K, x(Si) 0.57143–0.57143	6	1
CA5SI3_D8L phase:ca-si:ca5si3-d8l	Cr5B3 · D8_l · tI32 · I4/mcm (140)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1509.27 K, x(Si) 0.375–0.375	7	1
CASI_B33 phase:ca-si:casi-b33	CrB · B33 · oC8 · Cmcm (63)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1588.91 K, x(Si) 0.5–0.5	18	2
CASI2_C12 phase:ca-si:casi2-c12	CaSi2 · C12 · hR6 · R-3m (166)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1303.36 K, x(Si) 0.66667–0.66667	18	2
FCC_A1 phase:ca-si:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–716.03 K, x(Si) 0–0	1	2
HCP_A3 phase:ca-si: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:ca-si:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 1048.93–2500 K, x(Si) 0–1	22	2

DIAMOND_A4 (Ca–Si)

Id: phase:ca-si: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: Si 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–2498.95 K, x(Si) 1–1
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ca-si:a4-diamond, corpus:phase:ca-si:diamond-a4
paper: paper:10.1016/j.intermet.2003.07.001:(Si)
tdb: tdb:CaSi-03Gro.tdb:DIAMOND_A4, tdb:CaSi-94Ang-LB.tdb:DIAMOND_A4

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

CaSi-03Gro.tdb: DIAMOND_A4, type code %, sha256 ee18ca4a4c4fd9e2…

43: PHASE DIAMOND_A4 % 1 1 !
44: CONST DIAMOND_A4 : SI : !

CaSi-94Ang-LB.tdb: DIAMOND_A4, type code %, sha256 1769fd4ca474bf20…

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

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90034-5 J.C. Anglezio, C. Servant, I. Ansara, Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems, Calphad 18, 273-309 (1994).
assessment that models this phase
doi:10.1002/srin.197503664 Eberhard Schürmann, Peter Fünders, Hans Litterscheidt, Dampfdruck des Calciums über Calcium‐Silicium‐ und Calcium‐Aluminium‐Schmelzen sowie über Calcium‐Aluminium‐Silicium‐Legierungen, Steel Research Intl 46, 473-476 (1975).
cited as the source of values for this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase

BCC_A2 (Ca–Si)

Id: phase:ca-si: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): 716.03–1115 K, x(Si) 0–0
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ca-si:bcc-a2
paper: paper:10.1016/j.intermet.2003.07.001:(βCa)
tdb: tdb:CaSi-03Gro.tdb:BCC_A2, tdb:CaSi-94Ang-LB.tdb:BCC_A2

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

CaSi-03Gro.tdb: BCC_A2, type code %B, sha256 ee18ca4a4c4fd9e2…

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

CaSi-94Ang-LB.tdb: BCC_A2, type code %B, sha256 1769fd4ca474bf20…

38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : CA% SI : VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90034-5 J.C. Anglezio, C. Servant, I. Ansara, Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems, Calphad 18, 273-309 (1994).
assessment that models this phase
doi:10.1002/srin.197503664 Eberhard Schürmann, Peter Fünders, Hans Litterscheidt, Dampfdruck des Calciums über Calcium‐Silicium‐ und Calcium‐Aluminium‐Schmelzen sowie über Calcium‐Aluminium‐Silicium‐Legierungen, Steel Research Intl 46, 473-476 (1975).
cited as the source of values for this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase

CA14SI19 (Ca–Si)

Id: phase:ca-si:ca14si19; status assigned
Structure: Ca14Si19 · hR66 · R-3c (167); type st:ca14si19-hr66; 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: Ca 0.4242, Si 0.5758
Stability: stable in 1 of 1 calculated diagram(s): 1149.13–1356.72 K, x(Si) 0.57576–0.57576
Literature: 11 values (11 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ca-si:ca14si19
paper: paper:10.1016/j.intermet.2003.07.001:Ca14Si19
tdb: tdb:CaSi-03Gro.tdb:CA14SI19

TDB models of CA14SI19 (1): PHASE and CONSTITUENT statements as written

CaSi-03Gro.tdb: CA14SI19, type code %, sha256 ee18ca4a4c4fd9e2…

68: PHASE CA14SI19 % 2 14 19 !
69: CONST CA14SI19 : CA : SI : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase
doi:10.1002/srin.197503664 Eberhard Schürmann, Peter Fünders, Hans Litterscheidt, Dampfdruck des Calciums über Calcium‐Silicium‐ und Calcium‐Aluminium‐Schmelzen sowie über Calcium‐Aluminium‐Silicium‐Legierungen, Steel Research Intl 46, 473-476 (1975).
cited as the source of values for this phase

CA2SI_C37 (Ca–Si)

Id: phase:ca-si:ca2si-c37; status assigned
Structure: Co2Si · C37 · oP12 · Pnma (62); type st:c37-co2si-op12; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaadsv and oqmd-4796, space group 62
Stoichiometry: Ca 0.6667, Si 0.3333
Stability: stable in 2 of 2 calculated diagram(s): 300–1576.82 K, x(Si) 0.33333–0.33333
Literature: 18 values (18 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ca-si:ca2si-c37
mp: mp:mp-aaaaadsv
oqmd: oqmd:oqmd-4796
paper: paper:10.1016/j.intermet.2003.07.001:Ca2Si
tdb: tdb:CaSi-03Gro.tdb:CA2SI_C37, tdb:CaSi-94Ang-LB.tdb:CA2SI_C37

TDB models of CA2SI_C37 (2): PHASE and CONSTITUENT statements as written

CaSi-03Gro.tdb: CA2SI_C37, type code %, sha256 ee18ca4a4c4fd9e2…

48: PHASE CA2SI_C37 % 2 2 1 !
49: CONST CA2SI_C37 : CA : SI : !

CaSi-94Ang-LB.tdb: CA2SI_C37, type code %, sha256 1769fd4ca474bf20…

53: PHASE CA2SI_C37 % 2 2 1 !
54: CONST CA2SI_C37 : CA : SI : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90034-5 J.C. Anglezio, C. Servant, I. Ansara, Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems, Calphad 18, 273-309 (1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1002/srin.197503664 Eberhard Schürmann, Peter Fünders, Hans Litterscheidt, Dampfdruck des Calciums über Calcium‐Silicium‐ und Calcium‐Aluminium‐Schmelzen sowie über Calcium‐Aluminium‐Silicium‐Legierungen, Steel Research Intl 46, 473-476 (1975).
cited as the source of values for this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase

CA3SI4 (Ca–Si)

Id: phase:ca-si:ca3si4; status assigned
Structure: Ca3Si4 · hP42 · P6_3/m (176); type st:ca3si4-hp42; 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: Ca 0.4286, Si 0.5714
Stability: stable in 1 of 1 calculated diagram(s): 300–1206.52 K, x(Si) 0.57143–0.57143
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ca-si:ca3si4
paper: paper:10.1016/j.intermet.2003.07.001:Ca3Si4
tdb: tdb:CaSi-03Gro.tdb:CA3SI4

TDB models of CA3SI4 (1): PHASE and CONSTITUENT statements as written

CaSi-03Gro.tdb: CA3SI4, type code %, sha256 ee18ca4a4c4fd9e2…

63: PHASE CA3SI4 % 2 3 4 !
64: CONST CA3SI4 : CA : SI : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase

CA5SI3_D8L (Ca–Si)

Id: phase:ca-si:ca5si3-d8l; status assigned
Structure: Cr5B3 · D8_l · tI32 · I4/mcm (140); type st:d8-l-cr5b3-ti32; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaaben and oqmd-7693, space group 140
Stoichiometry: Ca 0.6250, Si 0.3750
Stability: stable in 1 of 1 calculated diagram(s): 300–1509.27 K, x(Si) 0.375–0.375
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ca-si:ca5si3-d8l
mp: mp:mp-aaaaaben
oqmd: oqmd:oqmd-7693
paper: paper:10.1016/j.intermet.2003.07.001:Ca5Si3
tdb: tdb:CaSi-03Gro.tdb:CA5SI3_D8L

TDB models of CA5SI3_D8L (1): PHASE and CONSTITUENT statements as written

CaSi-03Gro.tdb: CA5SI3_D8L, type code %, sha256 ee18ca4a4c4fd9e2…

53: PHASE CA5SI3_D8L % 2 5 3 !
54: CONST CA5SI3_D8L : CA : SI : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase
doi:10.1002/srin.197503664 Eberhard Schürmann, Peter Fünders, Hans Litterscheidt, Dampfdruck des Calciums über Calcium‐Silicium‐ und Calcium‐Aluminium‐Schmelzen sowie über Calcium‐Aluminium‐Silicium‐Legierungen, Steel Research Intl 46, 473-476 (1975).
cited as the source of values for this phase

CASI_B33 (Ca–Si)

Id: phase:ca-si:casi-b33; status assigned
Structure: CrB · B33 · oC8 · Cmcm (63); type st:b33-crb-oc8; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaacid and oqmd-52884, space group 63
Stoichiometry: Ca 0.5000, Si 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–1588.91 K, x(Si) 0.5–0.5
Literature: 18 values (18 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ca-si:casi-b33
mp: mp:mp-aaaaacid
oqmd: oqmd:oqmd-52884
paper: paper:10.1016/j.intermet.2003.07.001:CaSi
tdb: tdb:CaSi-03Gro.tdb:CASI_B33, tdb:CaSi-94Ang-LB.tdb:CASI_B33

TDB models of CASI_B33 (2): PHASE and CONSTITUENT statements as written

CaSi-03Gro.tdb: CASI_B33, type code %, sha256 ee18ca4a4c4fd9e2…

58: PHASE CASI_B33 % 2 1 1 !
59: CONST CASI_B33 : CA : SI : !

CaSi-94Ang-LB.tdb: CASI_B33, type code %, sha256 1769fd4ca474bf20…

58: PHASE CASI_B33 % 2 1 1 !
59: CONST CASI_B33 : CA : SI : !

Example references (5 of 5; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90034-5 J.C. Anglezio, C. Servant, I. Ansara, Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems, Calphad 18, 273-309 (1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase
doi:10.1002/srin.197503664 Eberhard Schürmann, Peter Fünders, Hans Litterscheidt, Dampfdruck des Calciums über Calcium‐Silicium‐ und Calcium‐Aluminium‐Schmelzen sowie über Calcium‐Aluminium‐Silicium‐Legierungen, Steel Research Intl 46, 473-476 (1975).
cited as the source of values for this phase
doi:10.1007/bf02664227 J. R. Wynnyckyj, L. M. Pidgeon, Activities in the Ca-Si system, Metall Trans 2, 975-978 (1971).
cited as the source of values for this phase

CASI2_C12 (Ca–Si)

Id: phase:ca-si:casi2-c12; status assigned
Structure: CaSi2 · C12 · hR6 · R-3m (166); type st:c12-casi2-hr6; tier A: standard phase name; confidence high
Stoichiometry: Ca 0.3333, Si 0.6667
Stability: stable in 2 of 2 calculated diagram(s): 300–1303.36 K, x(Si) 0.66667–0.66667
Literature: 18 values (18 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ca-si:casi2-c12
paper: paper:10.1016/j.intermet.2003.07.001:CaSi2
tdb: tdb:CaSi-03Gro.tdb:CASI2_C12, tdb:CaSi-94Ang-LB.tdb:CASI2_C12

TDB models of CASI2_C12 (2): PHASE and CONSTITUENT statements as written

CaSi-03Gro.tdb: CASI2_C12, type code %, sha256 ee18ca4a4c4fd9e2…

73: PHASE CASI2_C12 % 2 1 2 !
74: CONST CASI2_C12 : CA : SI : !

CaSi-94Ang-LB.tdb: CASI2_C12, type code %, sha256 1769fd4ca474bf20…

63: PHASE CASI2_C12 % 2 1 2 !
64: CONST CASI2_C12 : CA : SI : !

Example references (5 of 5; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90034-5 J.C. Anglezio, C. Servant, I. Ansara, Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems, Calphad 18, 273-309 (1994).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase
doi:10.1002/srin.197503664 Eberhard Schürmann, Peter Fünders, Hans Litterscheidt, Dampfdruck des Calciums über Calcium‐Silicium‐ und Calcium‐Aluminium‐Schmelzen sowie über Calcium‐Aluminium‐Silicium‐Legierungen, Steel Research Intl 46, 473-476 (1975).
cited as the source of values for this phase
doi:10.1007/bf02664227 J. R. Wynnyckyj, L. M. Pidgeon, Activities in the Ca-Si system, Metall Trans 2, 975-978 (1971).
cited as the source of values for this phase

FCC_A1 (Ca–Si)

Id: phase:ca-si: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): 300–716.03 K, x(Si) 0–0
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ca-si:fcc-a1
paper: paper:10.1016/j.intermet.2003.07.001:(αCa)
tdb: tdb:CaSi-03Gro.tdb:FCC_A1, tdb:CaSi-94Ang-LB.tdb:FCC_A1

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

CaSi-03Gro.tdb: FCC_A1, type code %A, sha256 ee18ca4a4c4fd9e2…

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

CaSi-94Ang-LB.tdb: FCC_A1, type code %A, sha256 1769fd4ca474bf20…

33: PHASE FCC_A1 %A 2 1 1 !
34: CONST FCC_A1 : CA% SI : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90034-5 J.C. Anglezio, C. Servant, I. Ansara, Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems, Calphad 18, 273-309 (1994).
assessment that models this phase

HCP_A3 (Ca–Si)

Id: phase:ca-si: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:ca-si:hcp-a3
tdb: tdb:CaSi-03Gro.tdb:HCP_A3, tdb:CaSi-94Ang-LB.tdb:HCP_A3

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

CaSi-03Gro.tdb: HCP_A3, type code %A, sha256 ee18ca4a4c4fd9e2…

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

CaSi-94Ang-LB.tdb: HCP_A3, type code %A, sha256 1769fd4ca474bf20…

43: PHASE HCP_A3 %A 2 1 0.5 !
44: CONST HCP_A3 : CA SI : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/0364-5916(94)90034-5 J.C. Anglezio, C. Servant, I. Ansara, Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems, Calphad 18, 273-309 (1994).
assessment that models this phase
doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase

LIQUID (Ca–Si)

Id: phase:ca-si:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 1048.93–2500 K, x(Si) 0–1
Literature: 22 values (22 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ca-si:liquid
paper: paper:10.1016/j.intermet.2003.07.001:L
tdb: tdb:CaSi-03Gro.tdb:LIQUID, tdb:CaSi-94Ang-LB.tdb:LIQUID

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

CaSi-03Gro.tdb: LIQUID, type code %, sha256 ee18ca4a4c4fd9e2…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : CA SI : !

CaSi-94Ang-LB.tdb: LIQUID, type code %, sha256 1769fd4ca474bf20…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : CA SI : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2003.07.001 Joachim Gröbner, Igor Chumak, Rainer Schmid-Fetzer, Experimental study of ternary Ca–Mg–Si phase equilibria and thermodynamic assessment of Ca–Si and Ca–Mg–Si systems, Intermetallics 11, 1065-1074 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/0364-5916(94)90034-5 J.C. Anglezio, C. Servant, I. Ansara, Contribution to the experimental and thermodynamic assessment of the AlCaFeSi system—I. AlCaFe, AlCaSi, AlFeSi and CaFeSi systems, Calphad 18, 273-309 (1994).
assessment that models this phase
doi:10.1016/s0966-9795(99)00112-0 P. Manfrinetti, M.L. Fornasini, A. Palenzona, The phase diagram of the Ca–Si system, Intermetallics 8, 223-228 (2000).
cited as the source of values for this phase
doi:10.1002/srin.197503664 Eberhard Schürmann, Peter Fünders, Hans Litterscheidt, Dampfdruck des Calciums über Calcium‐Silicium‐ und Calcium‐Aluminium‐Schmelzen sowie über Calcium‐Aluminium‐Silicium‐Legierungen, Steel Research Intl 46, 473-476 (1975).
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}
}