Ce–Si 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 · Ce–Si system page · Markdown · field reference

Phases of the Ce–Si system (13)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:ce-si:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–2499.97 K, x(Si) 1–1	7	2
BCC_A2 phase:ce-si:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 1000–1075 K, x(Si) 0–0	0	2
CE3SI2_D5A phase:ce-si:ce3si2-d5a	Si2U3 · D5_a · tP10 · P4/mbm (127)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1665.73 K, x(Si) 0.4–0.4	14	2
CE3SI4 phase:ce-si:ce3si4		needs_review	stable in 1 of 1 calculated diagram(s): 300–1471.38 K, x(Si) 0.57265–0.57265	2	1
CE3SI5 phase:ce-si:ce3si5		needs_review	stable in 2 of 2 calculated diagram(s): 300–1992.02 K, x(Si) 0.625–0.63	17	2
CE5SI3_D8L phase:ce-si:ce5si3-d8l	Cr5B3 · D8_l · tI32 · I4/mcm (140)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1643.64 K, x(Si) 0.375–0.375	15	2
CE5SI4 phase:ce-si:ce5si4	Si4Zr5 · tP36 · P4_12_12 (92)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–1772.89 K, x(Si) 0.44444–0.44444	19	2
CESI_B27 phase:ce-si:cesi-b27	FeB · B27 · oP8 · Pnma (62)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1899.45 K, x(Si) 0.5–0.5	27	2
CESI2_CC phase:ce-si:cesi2-cc	Si2Th · C_c · tI12 · I4_1/amd (141)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1883.47 K, x(Si) 0.66667–0.66667	20	2
DHCP phase:ce-si:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
FCC_A1 phase:ce-si:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1000 K, x(Si) 0–0	4	2
HCP_A3 phase:ce-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:ce-si:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 900.07–2500 K, x(Si) 0–1	87	2

DIAMOND_A4 (Ce–Si)

Id: phase:ce-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): 300–2499.97 K, x(Si) 1–1
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ce-si:a4-diamond, corpus:phase:ce-si:diamond-a4
paper: paper:10.1016/j.tca.2016.11.003:(Si)
tdb: tdb:CeSi-04Gro.tdb:DIAMOND_A4, tdb:CeSi-16Hua.tdb:DIAMOND_A4

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

CeSi-04Gro.tdb: DIAMOND_A4, type code %, sha256 1de57b4b73d0894d…

46: PHASE DIAMOND_A4 % 1 1 !
47: CONST DIAMOND_A4 : SI : !

CeSi-16Hua.tdb: DIAMOND_A4, type code %, sha256 bf95d2efc0a2b00b…

46: PHASE DIAMOND_A4 % 1 1 !
47: CONST DIAMOND_A4 : SI : !

Example references (7 of 7; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase
doi:10.1002/zaac.19130840125 Rudolf Vogel, Über die Legierungen des Cers mit Silicium und Wismut, Z. Anorg. Chem. 84, 323-339 (1913).
cited as the source of values for this phase
doi:10.1007/bf00905509 F. Benesovsky, H. Nowotny, W. Rieger, H. Rassaerts, Untersuchungen in den Dreistoffen Cer-Thorium(Uran)-Silicium, Monatshefte für Chemie 97, 221-229 (1966).
cited as the source of values for this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase

BCC_A2 (Ce–Si)

Id: phase:ce-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): 1000–1075 K, x(Si) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ce-si:bcc-a2
tdb: tdb:CeSi-04Gro.tdb:BCC_A2, tdb:CeSi-16Hua.tdb:BCC_A2

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

CeSi-04Gro.tdb: BCC_A2, type code %B, sha256 1de57b4b73d0894d…

36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : CE% SI : VA : !

CeSi-16Hua.tdb: BCC_A2, type code %B, sha256 bf95d2efc0a2b00b…

31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : CE% SI : VA : !

Example references (2 of 2; assessments first):

doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase
doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase

CE3SI2_D5A (Ce–Si)

Id: phase:ce-si:ce3si2-d5a; status assigned
Structure: Si2U3 · D5_a · tP10 · P4/mbm (127); type st:d5-a-si2u3-tp10; tier A: standard phase name; confidence high
Stoichiometry: Ce 0.6000, Si 0.4000
Stability: stable in 2 of 2 calculated diagram(s): 300–1665.73 K, x(Si) 0.4–0.4
Literature: 14 values (14 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ce-si:ce3si2-d5a
paper: paper:10.1016/j.tca.2016.11.003:Ce3Si2
tdb: tdb:CeSi-04Gro.tdb:CE3SI2_D5A, tdb:CeSi-16Hua.tdb:CE3SI2_D5A

TDB models of CE3SI2_D5A (2): PHASE and CONSTITUENT statements as written

CeSi-04Gro.tdb: CE3SI2_D5A, type code %, sha256 1de57b4b73d0894d…

56: PHASE CE3SI2_D5A % 2 3 2 !
57: CONST CE3SI2_D5A : CE : SI : !

CeSi-16Hua.tdb: CE3SI2_D5A, type code %, sha256 bf95d2efc0a2b00b…

56: PHASE CE3SI2_D5A % 2 3 2 !
57: CONST CE3SI2_D5A : CE : SI : !

Example references (5 of 5; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase

CE3SI4 (Ce–Si)

Id: phase:ce-si:ce3si4; status needs_review
No structure assigned. Why: assessment_declared_compound_differs_from_model_composition; no_on_hull_entry_in_both; no_structure_token
Candidate (literature_printed): V2B3 · oC20 — printed with a label mapped to this phase
Candidate (sgte_mmc2): V2B3 · oC20 · Cmcm (63) — Hallstedt 2025 mmc2 row for CE3SI4: Ce3Si4
Candidate (tdb_comment): V2B3 · oC20 · Cmcm — CeSi-16Hua.tdb: 'Prototype V2B3 (oC20, Cmcm)'
Stoichiometry: Ce 0.4274, Si 0.5726
Stability: stable in 1 of 1 calculated diagram(s): 300–1471.38 K, x(Si) 0.57265–0.57265
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ce-si:ce3si4
paper: paper:10.1016/j.tca.2016.11.003:CeSi1.34
tdb: tdb:CeSi-16Hua.tdb:CE3SI4

TDB models of CE3SI4 (1): PHASE and CONSTITUENT statements as written

CeSi-16Hua.tdb: CE3SI4, type code %, sha256 bf95d2efc0a2b00b…

71: PHASE CE3SI4 % 2 1 1.34 !
72: CONST CE3SI4 : CE : SI : !

Example references (1 of 1; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase

CE3SI5 (Ce–Si)

Id: phase:ce-si:ce3si5; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:models_disagree_on_composition; models_disagree_on_composition; no_structure_token
Candidate (literature_printed): GdSi1.4 · oI12 — printed with a label mapped to this phase
Candidate (sgte_mmc2): GdSi1.4 · oI12 · Imma (74) — Hallstedt 2025 mmc2 row for CE3SI5: Ce3Si5
Candidate (tdb_comment): GdSi1.4 · oI12 · Imma — CeSi-04Gro.tdb: 'Prototype GdSi1.4 (oI12, Imma)'
Candidate (tdb_comment): GdSi1.4 · oI12 · Imma — CeSi-16Hua.tdb: 'Prototype GdSi1.4 (oI12, Imma)'
Stability: stable in 2 of 2 calculated diagram(s): 300–1992.02 K, x(Si) 0.625–0.63
Literature: 17 values (17 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ce-si:ce3si5
paper: paper:10.1007/s11661-004-0172-y:Ce3Si5, paper:10.1016/j.tca.2016.11.003:CeSi1.68
tdb: tdb:CeSi-04Gro.tdb:CE3SI5, tdb:CeSi-16Hua.tdb:CE3SI5

TDB models of CE3SI5 (2): PHASE and CONSTITUENT statements as written

CeSi-04Gro.tdb: CE3SI5, type code %, sha256 1de57b4b73d0894d…

71: PHASE CE3SI5 % 2 3 5 !
72: CONST CE3SI5 : CE : SI : !

CeSi-16Hua.tdb: CE3SI5, type code %, sha256 bf95d2efc0a2b00b…

76: PHASE CE3SI5 % 2 0.37 0.63 !
77: CONST CE3SI5 : CE : SI : !

Example references (5 of 5; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase

CE5SI3_D8L (Ce–Si)

Id: phase:ce-si:ce5si3-d8l; status assigned
Structure: Cr5B3 · D8_l · tI32 · I4/mcm (140); type st:d8-l-cr5b3-ti32; tier A: standard phase name; confidence high
Stoichiometry: Ce 0.6250, Si 0.3750
Stability: stable in 2 of 2 calculated diagram(s): 300–1643.64 K, x(Si) 0.375–0.375
Literature: 15 values (15 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ce-si:ce5si3-d8l
paper: paper:10.1016/j.tca.2016.11.003:Ce5Si3, paper:10.1016/j.tca.2016.11.003:Ce5Si3 + (Ce)
tdb: tdb:CeSi-04Gro.tdb:CE5SI3_D8L, tdb:CeSi-16Hua.tdb:CE5SI3_D8L

TDB models of CE5SI3_D8L (2): PHASE and CONSTITUENT statements as written

CeSi-04Gro.tdb: CE5SI3_D8L, type code %, sha256 1de57b4b73d0894d…

51: PHASE CE5SI3_D8L % 2 5 3 !
52: CONST CE5SI3_D8L : CE : SI : !

CeSi-16Hua.tdb: CE5SI3_D8L, type code %, sha256 bf95d2efc0a2b00b…

51: PHASE CE5SI3_D8L % 2 5 3 !
52: CONST CE5SI3_D8L : CE : SI : !

Example references (6 of 6; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase
doi:10.1016/s0925-8388(96)02400-0 S.V. Meschel, O.J. Kleppa, Standard enthalpies of formation of some carbides, silicides, germanides and stannides of samarium by high temperature direct synthesis calorimetry, Journal of Alloys and Compounds 243, 186-193 (1996).
cited as the source of values for this phase

CE5SI4 (Ce–Si)

Id: phase:ce-si:ce5si4; status assigned
Structure: Si4Zr5 · tP36 · P4_12_12 (92); type st:si4zr5-tp36; 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: Ce 0.5556, Si 0.4444
Stability: stable in 2 of 2 calculated diagram(s): 300–1772.89 K, x(Si) 0.44444–0.44444
Literature: 19 values (19 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ce-si:ce5si4
paper: paper:10.1007/s11661-004-0172-y:Ce5Si4, paper:10.1016/j.tca.2016.11.003:Ce5Si4
tdb: tdb:CeSi-04Gro.tdb:CE5SI4, tdb:CeSi-16Hua.tdb:CE5SI4

TDB models of CE5SI4 (2): PHASE and CONSTITUENT statements as written

CeSi-04Gro.tdb: CE5SI4, type code %, sha256 1de57b4b73d0894d…

61: PHASE CE5SI4 % 2 5 4 !
62: CONST CE5SI4 : CE : SI : !

CeSi-16Hua.tdb: CE5SI4, type code %, sha256 bf95d2efc0a2b00b…

61: PHASE CE5SI4 % 2 5 4 !
62: CONST CE5SI4 : CE : SI : !

Example references (5 of 5; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase

CESI_B27 (Ce–Si)

Id: phase:ce-si:cesi-b27; status assigned
Structure: FeB · B27 · oP8 · Pnma (62); type st:b27-feb-op8; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaabfgd and oqmd-18278, space group 62
Stoichiometry: Ce 0.5000, Si 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–1899.45 K, x(Si) 0.5–0.5
Literature: 27 values (27 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ce-si:cesi-b27
mp: mp:mp-aaaabfgd
oqmd: oqmd:oqmd-18278
paper: paper:10.1016/j.tca.2016.11.003:CeSi, paper:10.1016/j.tca.2016.11.003:CeSi (trace)
tdb: tdb:CeSi-04Gro.tdb:CESI_B27, tdb:CeSi-16Hua.tdb:CESI_B27

TDB models of CESI_B27 (2): PHASE and CONSTITUENT statements as written

CeSi-04Gro.tdb: CESI_B27, type code %, sha256 1de57b4b73d0894d…

66: PHASE CESI_B27 % 2 1 1 !
67: CONST CESI_B27 : CE : SI : !

CeSi-16Hua.tdb: CESI_B27, type code %, sha256 bf95d2efc0a2b00b…

66: PHASE CESI_B27 % 2 1 1 !
67: CONST CESI_B27 : CE : SI : !

Example references (6 of 6; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase
doi:10.1016/0925-8388(94)06009-6 S.V. Meschel, O.J. Kleppa, Standard enthalpies of formation of some carbides, silicides and germanides of cerium and praseodymium, Journal of Alloys and Compounds 220, 88-93 (1995).
cited as the source of values for this phase

CESI2_CC (Ce–Si)

Id: phase:ce-si:cesi2-cc; status assigned
Structure: Si2Th · C_c · tI12 · I4_1/amd (141); type st:c-c-si2th-ti12; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaacva and oqmd-6060, space group 141
Stoichiometry: Ce 0.3333, Si 0.6667
Stability: stable in 2 of 2 calculated diagram(s): 300–1883.47 K, x(Si) 0.66667–0.66667
Literature: 20 values (20 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ce-si:cesi2-cc
mp: mp:mp-aaaaacva
oqmd: oqmd:oqmd-6060
paper: paper:10.1016/j.tca.2016.11.003:CeSi2
tdb: tdb:CeSi-04Gro.tdb:CESI2_CC, tdb:CeSi-16Hua.tdb:CESI2_CC

TDB models of CESI2_CC (2): PHASE and CONSTITUENT statements as written

CeSi-04Gro.tdb: CESI2_CC, type code %, sha256 1de57b4b73d0894d…

76: PHASE CESI2_CC % 2 1 2 !
77: CONST CESI2_CC : CE : SI : !

CeSi-16Hua.tdb: CESI2_CC, type code %, sha256 bf95d2efc0a2b00b…

81: PHASE CESI2_CC % 2 1 2 !
82: CONST CESI2_CC : CE : SI : !

Example references (7 of 7; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase
doi:10.1002/zaac.19130840125 Rudolf Vogel, Über die Legierungen des Cers mit Silicium und Wismut, Z. Anorg. Chem. 84, 323-339 (1913).
cited as the source of values for this phase
doi:10.1007/bf00905509 F. Benesovsky, H. Nowotny, W. Rieger, H. Rassaerts, Untersuchungen in den Dreistoffen Cer-Thorium(Uran)-Silicium, Monatshefte für Chemie 97, 221-229 (1966).
cited as the source of values for this phase

DHCP (Ce–Si)

Id: phase:ce-si:dhcp-a3; status assigned
Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type st:a3-alpha-la-hp4; tier A: standard phase name; confidence high
Stoichiometry: Ce 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:ce-si:dhcp-a3
tdb: tdb:CeSi-16Hua.tdb:DHCP

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

CeSi-16Hua.tdb: DHCP, type code %, sha256 bf95d2efc0a2b00b…

41: PHASE DHCP % 1 1 !
42: CONST DHCP : CE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase

FCC_A1 (Ce–Si)

Id: phase:ce-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): 300–1000 K, x(Si) 0–0
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ce-si:fcc-a1
paper: paper:10.1016/j.tca.2016.11.003:(γCe)
tdb: tdb:CeSi-04Gro.tdb:FCC_A1, tdb:CeSi-16Hua.tdb:FCC_A1

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

CeSi-04Gro.tdb: FCC_A1, type code %A, sha256 1de57b4b73d0894d…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : CE% SI : VA : !

CeSi-16Hua.tdb: FCC_A1, type code %A, sha256 bf95d2efc0a2b00b…

26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : CE% SI : VA : !

Example references (5 of 5; assessments first):

doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase

HCP_A3 (Ce–Si)

Id: phase:ce-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:ce-si:hcp-a3
tdb: tdb:CeSi-04Gro.tdb:HCP_A3, tdb:CeSi-16Hua.tdb:HCP_A3

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

CeSi-04Gro.tdb: HCP_A3, type code %A, sha256 1de57b4b73d0894d…

41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : CE SI : VA: !

CeSi-16Hua.tdb: HCP_A3, type code %A, sha256 bf95d2efc0a2b00b…

36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : CE SI : VA: !

Example references (2 of 2; assessments first):

doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase
doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase

LIQUID (Ce–Si)

Id: phase:ce-si:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 900.07–2500 K, x(Si) 0–1
Literature: 87 values (87 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ce-si:liquid
paper: paper:10.1007/s11661-004-0172-y:liquid, paper:10.1016/j.tca.2016.11.003:L, paper:10.1016/j.tca.2016.11.003:liquid
tdb: tdb:CeSi-04Gro.tdb:LIQUID, tdb:CeSi-16Hua.tdb:LIQUID

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

CeSi-04Gro.tdb: LIQUID, type code %, sha256 1de57b4b73d0894d…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : CE SI : !

CeSi-16Hua.tdb: LIQUID, type code %, sha256 bf95d2efc0a2b00b…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : CE SI : !

Example references (7 of 7; assessments first):

doi:10.1007/s11661-004-0172-y Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2016.11.003 Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jct.2014.08.015 J. Kim, I.-H. Jung, Critical evaluation and thermodynamic optimization of the Si-RE systems: Part I. Si-RE system (RE = La, Ce, Pr, Nd and Sm), J. Chem. Thermodyn. 81 (2015) 253–272.
cited as the source of values for this phase
doi:10.1016/s0925-8388(02)00409-7 M.V. Bulanova, P.N. Zheltov, K.A. Meleshevich, P.A. Saltykov, G. Effenberg, Cerium–silicon system, Journal of Alloys and Compounds 345, 110-115 (2002).
cited as the source of values for this phase
doi:10.3139/146.110003 A. Shukla, Y.-B. Kang, A.D. Pelton, Thermodynamic assessment of the ce-Si, Y-Si mg-Ce-Si and Mg-Y-Si systems, Int. J. Mater. Res. 100 (2009) 208–217.
cited as the source of values for this phase
doi:10.1002/zaac.19130840125 Rudolf Vogel, Über die Legierungen des Cers mit Silicium und Wismut, Z. Anorg. Chem. 84, 323-339 (1913).
cited as the source of values for this phase
doi:10.1007/bf00905509 F. Benesovsky, H. Nowotny, W. Rieger, H. Rassaerts, Untersuchungen in den Dreistoffen Cer-Thorium(Uran)-Silicium, Monatshefte für Chemie 97, 221-229 (1966).
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}
}