Ce–Te phases

12 phases (tier A 7, tier C 3, liquid 1, needs_review 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 · Ce–Te system page · Markdown · field reference

Phases of the Ce–Te system (12)
Phase	Structure	Basis	Stability (calculated)	TDB models
HEXAGONAL_A8 phase:ce-te:a8-hexagonal	gamma-Se · A8 · hP3 · P3_121 (152)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–722.66 K, x(Te) 1–1	1
BCC_A2 phase:ce-te:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1000–1072 K, x(Te) 0–0	1
CE2TE5 phase:ce-te:ce2te5		needs_review	stable in 1 of 1 calculated diagram(s): 884.06–1142.34 K, x(Te) 0.71429–0.71429	1
CE3TE4_D73 phase:ce-te:ce3te4-d73	Th3P4 · D7_3 · cI28 · I-43d (220)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1920.58 K, x(Te) 0.57143–0.60805	1
CE4TE7 phase:ce-te:ce4te7	(Ce4Te7) · tP22 · P4/mbm (127)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1617.3 K, x(Te) 0.63636–0.63636	1
CETE_B1 phase:ce-te:cete-b1	NaCl · B1 · cF8 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2091.41 K, x(Te) 0.5–0.5	1
CETE2 phase:ce-te:cete2	CeTe2 · tP72 · P4 (75)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1525.62 K, x(Te) 0.66667–0.66667	1
CETE3 phase:ce-te:cete3	CeTe3 · oC16 · Ama2 (40)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1108.84 K, x(Te) 0.75–0.75	1
DHCP phase:ce-te:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	1
FCC_A1 phase:ce-te:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1000 K, x(Te) 0–0	1
HCP_A3 phase:ce-te:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	1
LIQUID phase:ce-te:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 718.99–2500 K, x(Te) 0–1	1

HEXAGONAL_A8 (Ce–Te)

Id: phase:ce-te:a8-hexagonal; status assigned
Structure: gamma-Se · A8 · hP3 · P3_121 (152); type st:a8-gamma-se-hp3; tier A: standard phase name; confidence high
Stoichiometry: Te 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 300–722.66 K, x(Te) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:a8-hexagonal
tdb: tdb:CeTe-21Don.tdb:HEXAGONAL_A8

TDB models of HEXAGONAL_A8 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: HEXAGONAL_A8, type code %, sha256 504f513e3d8fce9d…

50: PHASE HEXAGONAL_A8 % 1 1 !
51: CONST HEXAGONAL_A8 : TE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

BCC_A2 (Ce–Te)

Id: phase:ce-te:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stoichiometry: Ce 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 1000–1072 K, x(Te) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:bcc-a2
tdb: tdb:CeTe-21Don.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: BCC_A2, type code %B, sha256 504f513e3d8fce9d…

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

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

CE2TE5 (Ce–Te)

Id: phase:ce-te:ce2te5; status needs_review
No structure assigned. Why: no_on_hull_entry_in_oqmd; no_structure_token
Candidate (dft_mp): Cmcm (63) — on-hull MP Ce2Te5 at x(TE)=0.7143
Candidate (tdb_comment): Nd2Te5 · oC28 · Cmcm — CeTe-21Don.tdb: 'Prototype Nd2Te5 (oC28, Cmcm)'
Stoichiometry: Ce 0.2857, Te 0.7143
Stability: stable in 1 of 1 calculated diagram(s): 884.06–1142.34 K, x(Te) 0.71429–0.71429
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:ce2te5
tdb: tdb:CeTe-21Don.tdb:CE2TE5

TDB models of CE2TE5 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: CE2TE5, type code %, sha256 504f513e3d8fce9d…

75: PHASE CE2TE5 % 2 2 5 !
76: CONST CE2TE5 : CE : TE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

CE3TE4_D73 (Ce–Te)

Id: phase:ce-te:ce3te4-d73; status assigned
Structure: Th3P4 · D7_3 · cI28 · I-43d (220); type st:d7-3-th3p4-ci28; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–1920.58 K, x(Te) 0.57143–0.60805
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:ce3te4-d73
tdb: tdb:CeTe-21Don.tdb:CE3TE4_D73

TDB models of CE3TE4_D73 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: CE3TE4_D73, type code %, sha256 504f513e3d8fce9d…

60: PHASE CE3TE4_D73 % 2 3 4 !
61: CONST CE3TE4_D73 : CE% VA : TE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

CE4TE7 (Ce–Te)

Id: phase:ce-te:ce4te7; status assigned
Structure: (Ce4Te7) · tP22 · P4/mbm (127); type st:ce4te7-tp22; 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 0.3636, Te 0.6364
Stability: stable in 1 of 1 calculated diagram(s): 300–1617.3 K, x(Te) 0.63636–0.63636
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:ce4te7
tdb: tdb:CeTe-21Don.tdb:CE4TE7

TDB models of CE4TE7 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: CE4TE7, type code %, sha256 504f513e3d8fce9d…

65: PHASE CE4TE7 % 2 4 7 !
66: CONST CE4TE7 : CE : TE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

CETE_B1 (Ce–Te)

Id: phase:ce-te:cete-b1; status assigned
Structure: NaCl · B1 · cF8 · Fm-3m (225); type st:b1-nacl-cf8; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaacgr and oqmd-29197, space group 225
Stoichiometry: Ce 0.5000, Te 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–2091.41 K, x(Te) 0.5–0.5
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ce-te:cete-b1
mp: mp:mp-aaaaacgr
oqmd: oqmd:oqmd-29197
tdb: tdb:CeTe-21Don.tdb:CETE_B1

TDB models of CETE_B1 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: CETE_B1, type code %, sha256 504f513e3d8fce9d…

55: PHASE CETE_B1 % 2 1 1 !
56: CONST CETE_B1 : CE : TE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

CETE2 (Ce–Te)

Id: phase:ce-te:cete2; status assigned
Structure: CeTe2 · tP72 · P4 (75); type st:cete2-tp72; 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 0.3333, Te 0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300–1525.62 K, x(Te) 0.66667–0.66667
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:cete2
tdb: tdb:CeTe-21Don.tdb:CETE2

TDB models of CETE2 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: CETE2, type code %, sha256 504f513e3d8fce9d…

70: PHASE CETE2 % 2 1 2 !
71: CONST CETE2 : CE : TE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

CETE3 (Ce–Te)

Id: phase:ce-te:cete3; status assigned
Structure: CeTe3 · oC16 · Ama2 (40); type st:cete3-oc16; 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_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ce 0.2500, Te 0.7500
Stability: stable in 1 of 1 calculated diagram(s): 300–1108.84 K, x(Te) 0.75–0.75
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:cete3
tdb: tdb:CeTe-21Don.tdb:CETE3

TDB models of CETE3 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: CETE3, type code %, sha256 504f513e3d8fce9d…

80: PHASE CETE3 % 2 1 3 !
81: CONST CETE3 : CE : TE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

DHCP (Ce–Te)

Id: phase:ce-te: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-te:dhcp-a3
tdb: tdb:CeTe-21Don.tdb:DHCP

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

CeTe-21Don.tdb: DHCP, type code %, sha256 504f513e3d8fce9d…

43: PHASE DHCP % 1 1 !
44: CONST DHCP : CE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

FCC_A1 (Ce–Te)

Id: phase:ce-te:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stoichiometry: Ce 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 300–1000 K, x(Te) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:fcc-a1
tdb: tdb:CeTe-21Don.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

CeTe-21Don.tdb: FCC_A1, type code %A, sha256 504f513e3d8fce9d…

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

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

HCP_A3 (Ce–Te)

Id: phase:ce-te:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stoichiometry: 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-te:hcp-a3
tdb: tdb:CeTe-21Don.tdb:HCP_A3

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

CeTe-21Don.tdb: HCP_A3, type code %A, sha256 504f513e3d8fce9d…

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

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
assessment that models this phase

LIQUID (Ce–Te)

Id: phase:ce-te:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 718.99–2500 K, x(Te) 0–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ce-te:liquid
tdb: tdb:CeTe-21Don.tdb:LIQUID

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

CeTe-21Don.tdb: LIQUID, type code %, sha256 504f513e3d8fce9d…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : CE CETE TE : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2021.102281 C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021).
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}
}