Ce–Mg phases

14 phases (tier A 6, tier C 5, 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–Mg system page · Markdown · field reference

Phases of the Ce–Mg system (14)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:ce-mg:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 768.67–1073.64 K, x(Mg) 0–0.31831	4	6
B2_BCC phase:ce-mg:bcc-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1072 K, x(Mg) 0–0.51941	0	2
MG2Y_C14 phase:ce-mg:c14-mg2y		needs_review	not stable in 2 calculated diagram(s)	0	2
MG2M_C15 phase:ce-mg:c15-mg2m	Cu2Mg · C15 · cF24 · Fd-3m (227)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 4 of 4 calculated diagram(s): 887.65–1023.34 K, x(Mg) 0.66667–0.66667	7	4
CEMG_B2 phase:ce-mg:cemg-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–990.17 K, x(Mg) 0.5–0.5	9	2
MG3M_D03 phase:ce-mg:d03-mg3m	BiF3 · D0_3 · cF16 · Fm-3m (225)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 4 of 4 calculated diagram(s): 300–1071.95 K, x(Mg) 0.75–0.77049	10	4
MG12R_D2B phase:ce-mg:d2b-mg12r	Mn12Th · D2_b · tI26 · I4/mmm (139)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 4 of 4 calculated diagram(s): 300–886.37 K, x(Mg) 0.92308–0.92308	7	4
DHCP phase:ce-mg:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	not stable in 4 calculated diagram(s)	0	4
FCC_A1 phase:ce-mg:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–1048.29 K, x(Mg) 0–0.11822	1	4
HCP_A3 phase:ce-mg:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–2499.49 K, x(Mg) 0.9983–1	3	4
LIQUID phase:ce-mg:liquid	liquid	liquid	stable in 4 of 4 calculated diagram(s): 864.31–2500 K, x(Mg) 0–1	26	4
MG17R2 phase:ce-mg:mg17r2	CeMg10 · hP44 · P6_3/mmc (194)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 4 calculated diagram(s): 880–896.13 K, x(Mg) 0.89474–0.89474	7	4
MG41M5 phase:ce-mg:mg41m5	Ce5Mg41 · tI92 · I4/m (87)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 4 of 4 calculated diagram(s): 300–905.42 K, x(Mg) 0.8913–0.8913	7	4
MG5M phase:ce-mg:mg5m		needs_review	not stable in 2 calculated diagram(s)	0	2

BCC_A2 (Ce–Mg)

Id: phase:ce-mg: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 4 of 4 calculated diagram(s): 768.67–1073.64 K, x(Mg) 0–0.31831
Literature: 4 values (4 accepted) from 2 papers
Interactive: phase registry entry

Names (9): corpus: corpus:phase:ce-mg:bcc-a2
paper: paper:10.1016/j.jallcom.2007.09.020:bcc_A2, paper:sha256-85fd53a1a176b694:bcc-A2
tdb: tdb:CeMg-08Guo.tdb:A2_BCC, tdb:CeMg-08Guo.tdb:BCC_A2, tdb:CeMg-08Zha.tdb:BCC_A2, tdb:CeMg-10Guo.tdb:A2_BCC, tdb:CeMg-10Guo.tdb:BCC_A2, tdb:CeMg-98Cac-LB.tdb:BCC_A2

TDB models of BCC_A2 (6): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: A2_BCC, type code %B, sha256 0775d62211d407e6…

36: PHASE A2_BCC %B 2 1 3 !
37: CONST A2_BCC : CE% MG : VA% : !

CeMg-08Guo.tdb: BCC_A2, type code %B, sha256 0775d62211d407e6…

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

CeMg-08Zha.tdb: BCC_A2, type code %B, sha256 ba049b71bcb3e9d4…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : CE% MG : VA% : !

CeMg-10Guo.tdb: A2_BCC, type code %B, sha256 537656992ebe3a73…

36: PHASE A2_BCC %B 2 1 3 !
37: CONST A2_BCC : CE% MG : VA% : !

CeMg-10Guo.tdb: BCC_A2, type code %B, sha256 537656992ebe3a73…

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

CeMg-98Cac-LB.tdb: BCC_A2, type code %B, sha256 80e109b42da8d78a…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : CE% MG : VA% : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase
doi:10.1515/ijmr-1947-380101 R. Vogel, T. Heumann, Z. Metallkd. 38 (1947) 1–8.
cited as the source of values for this phase

B2_BCC (Ce–Mg)

Id: phase:ce-mg:bcc-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Caveat: CeMg-08Guo.tdb: ordered phase with disordered part A2_BCC (order/disorder model)
Caveat: CeMg-10Guo.tdb: ordered phase with disordered part A2_BCC (order/disorder model)
Caveat: partitioned order/disorder model in CeMg-08Guo.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CeMg-10Guo.tdb also describes the disordered state
Stability: stable in 2 of 2 calculated diagram(s): 300–1072 K, x(Mg) 0–0.51941
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ce-mg:bcc-b2
tdb: tdb:CeMg-08Guo.tdb:B2_BCC, tdb:CeMg-10Guo.tdb:B2_BCC

TDB models of B2_BCC (2): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: B2_BCC, type code %BO, sha256 0775d62211d407e6…

41: PHASE B2_BCC %BO 3 0.5 0.5 3 !
42: CONST B2_BCC : CE MG% : CE% MG : VA : !

CeMg-10Guo.tdb: B2_BCC, type code %BO, sha256 537656992ebe3a73…

41: PHASE B2_BCC %BO 3 0.5 0.5 3 !
42: CONST B2_BCC : CE MG% : CE% MG : VA : !

Example references (2 of 2; assessments first):

doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase

MG2Y_C14 (Ce–Mg)

Id: phase:ce-mg:c14-mg2y; status needs_review
No structure assigned. Why: unrecognised_name_tokens:MG2Y
Candidate (name_token): MgZn2 · C14 · hP12 · P6_3/mmc (194) — Strukturbericht/word 'C14' in the TDB name
Candidate (tdb_comment): MgZn2 · hP12 · P6_3/mmc — CeMg-08Guo.tdb: 'Prototype MgZn2 (hP12, P6_3/mmc)'
Candidate (tdb_comment): MgZn2 · hP12 · P6_3/mmc — CeMg-10Guo.tdb: 'Prototype MgZn2 (hP12, P6_3/mmc)'
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-mg:c14-mg2y
tdb: tdb:CeMg-08Guo.tdb:MG2Y_C14, tdb:CeMg-10Guo.tdb:MG2Y_C14

TDB models of MG2Y_C14 (2): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: MG2Y_C14, type code %, sha256 0775d62211d407e6…

86: PHASE MG2Y_C14 % 2 2 1 !
87: CONST MG2Y_C14 : MG% : CE MG : !

CeMg-10Guo.tdb: MG2Y_C14, type code %, sha256 537656992ebe3a73…

86: PHASE MG2Y_C14 % 2 2 1 !
87: CONST MG2Y_C14 : MG% : CE MG : !

Example references (2 of 2; assessments first):

doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase

MG2M_C15 (Ce–Mg)

Id: phase:ce-mg:c15-mg2m; status assigned
Structure: Cu2Mg · C15 · cF24 · Fd-3m (227); type st:c15-cu2mg-cf24; 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 (unrecognised_name_tokens:MG2M); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ce 0.3333, Mg 0.6667
Stability: stable in 4 of 4 calculated diagram(s): 887.65–1023.34 K, x(Mg) 0.66667–0.66667
Literature: 7 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:ce-mg:c15-mg2m, corpus:phase:ce-mg:mg2m-c15
paper: paper:10.1016/j.jallcom.2007.09.020:Mg2Ce, paper:sha256-85fd53a1a176b694:CeMg2
tdb: tdb:CeMg-08Guo.tdb:MG2M_C15, tdb:CeMg-08Zha.tdb:MG2M_C15, tdb:CeMg-10Guo.tdb:MG2M_C15, tdb:CeMg-98Cac-LB.tdb:MG2M_C15

TDB models of MG2M_C15 (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: MG2M_C15, type code %, sha256 0775d62211d407e6…

56: PHASE MG2M_C15 % 2 2 1 !
57: CONST MG2M_C15 : MG : CE : !

CeMg-08Zha.tdb: MG2M_C15, type code %, sha256 ba049b71bcb3e9d4…

54: PHASE MG2M_C15 % 2 2 1 !
55: CONST MG2M_C15 : MG : CE : !

CeMg-10Guo.tdb: MG2M_C15, type code %, sha256 537656992ebe3a73…

56: PHASE MG2M_C15 % 2 2 1 !
57: CONST MG2M_C15 : MG : CE : !

CeMg-98Cac-LB.tdb: MG2M_C15, type code %, sha256 80e109b42da8d78a…

54: PHASE MG2M_C15 % 2 2 1 !
55: CONST MG2M_C15 : MG : CE : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase
doi:10.1515/ijmr-1947-380101 R. Vogel, T. Heumann, Z. Metallkd. 38 (1947) 1–8.
cited as the source of values for this phase

CEMG_B2 (Ce–Mg)

Id: phase:ce-mg:cemg-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Stoichiometry: Ce 0.5000, Mg 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–990.17 K, x(Mg) 0.5–0.5
Literature: 9 values (9 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ce-mg:cemg-b2
paper: paper:10.1016/j.jallcom.2007.09.020:MgCe, paper:sha256-85fd53a1a176b694:CeMg
tdb: tdb:CeMg-08Zha.tdb:CEMG_B2, tdb:CeMg-98Cac-LB.tdb:CEMG_B2

TDB models of CEMG_B2 (2): PHASE and CONSTITUENT statements as written

CeMg-08Zha.tdb: CEMG_B2, type code %, sha256 ba049b71bcb3e9d4…

49: PHASE CEMG_B2 % 2 1 1 !
50: CONST CEMG_B2 : MG : CE : !

CeMg-98Cac-LB.tdb: CEMG_B2, type code %, sha256 80e109b42da8d78a…

49: PHASE CEMG_B2 % 2 1 1 !
50: CONST CEMG_B2 : MG : CE : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1947-380101 R. Vogel, T. Heumann, Z. Metallkd. 38 (1947) 1–8.
cited as the source of values for this phase

MG3M_D03 (Ce–Mg)

Id: phase:ce-mg:d03-mg3m; status assigned
Structure: BiF3 · D0_3 · cF16 · Fm-3m (225); type st:d0-3-bif3-cf16; 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 (unrecognised_name_tokens:MG3M); structure as stated in the SGTE crystallographic table for this phase name and system
Stability: stable in 4 of 4 calculated diagram(s): 300–1071.95 K, x(Mg) 0.75–0.77049
Literature: 10 values (10 accepted) from 2 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:ce-mg:d03-mg3m, corpus:phase:ce-mg:mg3m-d03
paper: paper:10.1016/j.jallcom.2007.09.020:Mg3Ce, paper:sha256-85fd53a1a176b694:CeMg3
tdb: tdb:CeMg-08Guo.tdb:MG3M_D03, tdb:CeMg-08Zha.tdb:MG3M_D03, tdb:CeMg-10Guo.tdb:MG3M_D03, tdb:CeMg-98Cac-LB.tdb:MG3M_D03

TDB models of MG3M_D03 (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: MG3M_D03, type code %, sha256 0775d62211d407e6…

61: PHASE MG3M_D03 % 2 3 1 !
62: CONST MG3M_D03 : MG : CE% MG : !

CeMg-08Zha.tdb: MG3M_D03, type code %, sha256 ba049b71bcb3e9d4…

59: PHASE MG3M_D03 % 2 3 1 !
60: CONST MG3M_D03 : MG : CE : !

CeMg-10Guo.tdb: MG3M_D03, type code %, sha256 537656992ebe3a73…

61: PHASE MG3M_D03 % 2 3 1 !
62: CONST MG3M_D03 : MG : CE% MG : !

CeMg-98Cac-LB.tdb: MG3M_D03, type code %, sha256 80e109b42da8d78a…

59: PHASE MG3M_D03 % 2 3 1 !
60: CONST MG3M_D03 : MG : CE : !

Example references (5 of 5; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase
doi:10.1515/ijmr-1947-380101 R. Vogel, T. Heumann, Z. Metallkd. 38 (1947) 1–8.
cited as the source of values for this phase
doi:10.1016/0022-5088(65)90115-3 David H. Wood, Eugene M. Cramer, Phase relations in the magnesium-rich portion of the cerium-magnesium system, Journal of the Less Common Metals 9, 321-337 (1965).
cited as the source of values for this phase

MG12R_D2B (Ce–Mg)

Id: phase:ce-mg:d2b-mg12r; status assigned
Structure: Mn12Th · D2_b · tI26 · I4/mmm (139); type st:d2-b-mn12th-ti26; 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 (unrecognised_name_tokens:MG12R); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ce 0.0769, Mg 0.9231
Stability: stable in 4 of 4 calculated diagram(s): 300–886.37 K, x(Mg) 0.92308–0.92308
Literature: 7 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:ce-mg:d2b-mg12r, corpus:phase:ce-mg:mg12r-d2b
paper: paper:10.1016/j.jallcom.2007.09.020:Mg12Ce, paper:sha256-85fd53a1a176b694:CeMg12
tdb: tdb:CeMg-08Guo.tdb:MG12R_D2B, tdb:CeMg-08Zha.tdb:MG12R_D2B, tdb:CeMg-10Guo.tdb:MG12R_D2B, tdb:CeMg-98Cac-LB.tdb:MG12R_D2B

TDB models of MG12R_D2B (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: MG12R_D2B, type code %, sha256 0775d62211d407e6…

76: PHASE MG12R_D2B % 2 12 1 !
77: CONST MG12R_D2B : MG : CE : !

CeMg-08Zha.tdb: MG12R_D2B, type code %, sha256 ba049b71bcb3e9d4…

74: PHASE MG12R_D2B % 2 12 1 !
75: CONST MG12R_D2B : MG : CE : !

CeMg-10Guo.tdb: MG12R_D2B, type code %, sha256 537656992ebe3a73…

76: PHASE MG12R_D2B % 2 12 1 !
77: CONST MG12R_D2B : MG : CE : !

CeMg-98Cac-LB.tdb: MG12R_D2B, type code %, sha256 80e109b42da8d78a…

69: PHASE MG12R_D2B % 2 12 1 !
70: CONST MG12R_D2B : MG : CE : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase

DHCP (Ce–Mg)

Id: phase:ce-mg: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
Stability: not stable in 4 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ce-mg:dhcp-a3
tdb: tdb:CeMg-08Guo.tdb:DHCP, tdb:CeMg-08Zha.tdb:DHCP, tdb:CeMg-10Guo.tdb:DHCP, tdb:CeMg-98Cac-LB.tdb:DHCP

TDB models of DHCP (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: DHCP, type code %A, sha256 0775d62211d407e6…

51: PHASE DHCP %A 2 1 0.5 !
52: CONST DHCP : CE% MG : VA% : !

CeMg-08Zha.tdb: DHCP, type code %A, sha256 ba049b71bcb3e9d4…

44: PHASE DHCP %A 2 1 0.5 !
45: CONST DHCP : CE% MG : VA% : !

CeMg-10Guo.tdb: DHCP, type code %A, sha256 537656992ebe3a73…

51: PHASE DHCP %A 2 1 0.5 !
52: CONST DHCP : CE% MG : VA% : !

CeMg-98Cac-LB.tdb: DHCP, type code %A, sha256 80e109b42da8d78a…

44: PHASE DHCP %A 2 1 0.5 !
45: CONST DHCP : CE% MG : VA% : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase

FCC_A1 (Ce–Mg)

Id: phase:ce-mg: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 4 of 4 calculated diagram(s): 300–1048.29 K, x(Mg) 0–0.11822
Literature: 1 values (1 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:ce-mg:fcc-a1
paper: paper:sha256-85fd53a1a176b694:fcc-A1
tdb: tdb:CeMg-08Guo.tdb:FCC_A1, tdb:CeMg-08Zha.tdb:FCC_A1, tdb:CeMg-10Guo.tdb:FCC_A1, tdb:CeMg-98Cac-LB.tdb:FCC_A1

TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: FCC_A1, type code %A, sha256 0775d62211d407e6…

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

CeMg-08Zha.tdb: FCC_A1, type code %A, sha256 ba049b71bcb3e9d4…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : CE% MG : VA% : !

CeMg-10Guo.tdb: FCC_A1, type code %A, sha256 537656992ebe3a73…

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

CeMg-98Cac-LB.tdb: FCC_A1, type code %A, sha256 80e109b42da8d78a…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : CE% MG : VA% : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase

HCP_A3 (Ce–Mg)

Id: phase:ce-mg: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 4 of 4 calculated diagram(s): 300–2499.49 K, x(Mg) 0.9983–1
Literature: 3 values (3 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ce-mg:hcp-a3
paper: paper:10.1016/j.jallcom.2007.09.020:hcp_A3, paper:sha256-85fd53a1a176b694:hcp-A3
tdb: tdb:CeMg-08Guo.tdb:HCP_A3, tdb:CeMg-08Zha.tdb:HCP_A3, tdb:CeMg-10Guo.tdb:HCP_A3, tdb:CeMg-98Cac-LB.tdb:HCP_A3

TDB models of HCP_A3 (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: HCP_A3, type code %A, sha256 0775d62211d407e6…

46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : CE MG% : VA% : !

CeMg-08Zha.tdb: HCP_A3, type code %A, sha256 ba049b71bcb3e9d4…

39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : CE MG% : VA% : !

CeMg-10Guo.tdb: HCP_A3, type code %A, sha256 537656992ebe3a73…

46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : CE MG% : VA% : !

CeMg-98Cac-LB.tdb: HCP_A3, type code %A, sha256 80e109b42da8d78a…

39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : CE MG% : VA% : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase

LIQUID (Ce–Mg)

Id: phase:ce-mg:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 864.31–2500 K, x(Mg) 0–1
Literature: 26 values (26 accepted) from 2 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:ce-mg:liquid
paper: paper:10.1016/j.jallcom.2007.09.020:L, paper:10.1016/j.jallcom.2007.09.020:liquid, paper:sha256-85fd53a1a176b694:L
tdb: tdb:CeMg-08Guo.tdb:LIQUID, tdb:CeMg-08Zha.tdb:LIQUID, tdb:CeMg-10Guo.tdb:LIQUID, tdb:CeMg-98Cac-LB.tdb:LIQUID

TDB models of LIQUID (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: LIQUID, type code %, sha256 0775d62211d407e6…

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

CeMg-08Zha.tdb: LIQUID, type code %, sha256 ba049b71bcb3e9d4…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : CE MG : !

CeMg-10Guo.tdb: LIQUID, type code %, sha256 537656992ebe3a73…

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

CeMg-98Cac-LB.tdb: LIQUID, type code %, sha256 80e109b42da8d78a…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : CE MG : !

Example references (5 of 5; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase
doi:10.1515/ijmr-1947-380101 R. Vogel, T. Heumann, Z. Metallkd. 38 (1947) 1–8.
cited as the source of values for this phase
doi:10.1016/0022-5088(65)90115-3 David H. Wood, Eugene M. Cramer, Phase relations in the magnesium-rich portion of the cerium-magnesium system, Journal of the Less Common Metals 9, 321-337 (1965).
cited as the source of values for this phase

MG17R2 (Ce–Mg)

Id: phase:ce-mg:mg17r2; status assigned
Structure: CeMg10 · hP44 · P6_3/mmc (194); type st:cemg10-hp44; 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 (name_has_descriptive_tokens:MG17R2, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ce 0.1053, Mg 0.8947
Stability: stable in 3 of 4 calculated diagram(s): 880–896.13 K, x(Mg) 0.89474–0.89474
Literature: 7 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ce-mg:mg17r2
paper: paper:10.1016/j.jallcom.2007.09.020:Mg17Ce2, paper:sha256-85fd53a1a176b694:Ce2Mg17
tdb: tdb:CeMg-08Guo.tdb:MG17R2, tdb:CeMg-08Zha.tdb:MG17R2, tdb:CeMg-10Guo.tdb:MG17R2, tdb:CeMg-98Cac-LB.tdb:MG17R2

TDB models of MG17R2 (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: MG17R2, type code %, sha256 0775d62211d407e6…

81: PHASE MG17R2 % 2 17 2 !
82: CONST MG17R2 : MG : CE : !

CeMg-08Zha.tdb: MG17R2, type code %, sha256 ba049b71bcb3e9d4…

69: PHASE MG17R2 % 2 17 2 !
70: CONST MG17R2 : MG : CE : !

CeMg-10Guo.tdb: MG17R2, type code %, sha256 537656992ebe3a73…

81: PHASE MG17R2 % 2 17 2 !
82: CONST MG17R2 : MG : CE : !

CeMg-98Cac-LB.tdb: MG17R2, type code %, sha256 80e109b42da8d78a…

74: PHASE MG17R2 % 2 17 2 !
75: CONST MG17R2 : MG : CE : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase
doi:10.1016/0022-5088(65)90115-3 David H. Wood, Eugene M. Cramer, Phase relations in the magnesium-rich portion of the cerium-magnesium system, Journal of the Less Common Metals 9, 321-337 (1965).
cited as the source of values for this phase

MG41M5 (Ce–Mg)

Id: phase:ce-mg:mg41m5; status assigned
Structure: Ce5Mg41 · tI92 · I4/m (87); type st:ce5mg41-ti92; 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 (name_has_descriptive_tokens:MG41M5, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ce 0.1087, Mg 0.8913
Stability: stable in 4 of 4 calculated diagram(s): 300–905.42 K, x(Mg) 0.8913–0.8913
Literature: 7 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ce-mg:mg41m5
paper: paper:10.1016/j.jallcom.2007.09.020:Mg41Ce5, paper:sha256-85fd53a1a176b694:Ce5Mg41
tdb: tdb:CeMg-08Guo.tdb:MG41M5, tdb:CeMg-08Zha.tdb:MG41M5, tdb:CeMg-10Guo.tdb:MG41M5, tdb:CeMg-98Cac-LB.tdb:MG41M5

TDB models of MG41M5 (4): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: MG41M5, type code %, sha256 0775d62211d407e6…

71: PHASE MG41M5 % 2 41 5 !
72: CONST MG41M5 : MG : CE : !

CeMg-08Zha.tdb: MG41M5, type code %, sha256 ba049b71bcb3e9d4…

64: PHASE MG41M5 % 2 41 5 !
65: CONST MG41M5 : MG : CE : !

CeMg-10Guo.tdb: MG41M5, type code %, sha256 537656992ebe3a73…

71: PHASE MG41M5 % 2 41 5 !
72: CONST MG41M5 : MG : CE : !

CeMg-98Cac-LB.tdb: MG41M5, type code %, sha256 80e109b42da8d78a…

64: PHASE MG41M5 % 2 41 5 !
65: CONST MG41M5 : MG : CE : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jallcom.2007.09.020 Hui Zhang, Yi Wang, Shunli Shang, Long-Qing Chen, Zi-Kui Liu, Thermodynamic modeling of Mg–Ca–Ce system by combining first-principles and CALPHAD method, Journal of Alloys and Compounds 463, 294-301 (2008).
assessment that models this phase; reports values for this phase
doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
assessment that models this phase
doi:10.1016/0022-5088(65)90115-3 David H. Wood, Eugene M. Cramer, Phase relations in the magnesium-rich portion of the cerium-magnesium system, Journal of the Less Common Metals 9, 321-337 (1965).
cited as the source of values for this phase

MG5M (Ce–Mg)

Id: phase:ce-mg:mg5m; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:MG5M; no_structure_token
Candidate (sgte_mmc2): Cd45Sm11 · cF448 · F-43m (216) — Hallstedt 2025 mmc2 row for MG5M: Mg5(Nd,Y), Mg5Tb
Candidate (tdb_comment): Cd45Sm11 · cF448 · F-43m — CeMg-08Guo.tdb: 'Prototype Cd45Sm11 (cF448, F-43m)'
Candidate (tdb_comment): Cd45Sm11 · cF448 · F-43m — CeMg-10Guo.tdb: 'Prototype Cd45Sm11 (cF448, F-43m)'
Stoichiometry: Ce 0.1667, Mg 0.8333
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-mg:mg5m
tdb: tdb:CeMg-08Guo.tdb:MG5M, tdb:CeMg-10Guo.tdb:MG5M

TDB models of MG5M (2): PHASE and CONSTITUENT statements as written

CeMg-08Guo.tdb: MG5M, type code %, sha256 0775d62211d407e6…

66: PHASE MG5M % 2 5 1 !
67: CONST MG5M : MG : CE : !

CeMg-10Guo.tdb: MG5M, type code %, sha256 537656992ebe3a73…

66: PHASE MG5M % 2 5 1 !
67: CONST MG5M : MG : CE : !

Example references (2 of 2; assessments first):

doi:10.3139/146.101685 Cuiping Guo, Zhenmin Du, Changrong Li, Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems, International Journal of Materials Research 99, 650-688 (2008).
assessment that models this phase
doi:10.3139/146.110380 C. Guo, Z. Du, C. Li, Int. J. Mater. Res., 101, 1424-31(2010).
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}
}