Eu–Te system

12 accepted literature values from 1 paper(s) (experimental 7, model 5); 2 calculated phase diagram(s). 11 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (6) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	7
model	5

Accepted values by property group
Property group	Values
invariant reaction	12

Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
EuTe-15Gha.tdb	H. Ghamri, Y. Djaballah, A. Belgacem-Bouzida, J. Alloys Compd., 643, 121-28(2015). doi:10.1016/j.jallcom.2015.03.224	`fe1f8b4811f1b60f93ba53b3031a5080d3010d61c00ce36d4eb85e69181ee045`	viewer · TDB · JSON
EuTe-21Don.tdb	C. Dong, J. Wang, B. Hu, L. Zhu, Q. Wu, Y. Du, Calphad, 74, 102281(2021). doi:10.1016/j.calphad.2021.102281	`fd5d8bba8db3f01f9fe5e77e11a0ca910c0184f49da9697fb750b8f415afda7a`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
EuTe-15Gha.tdb	1053.19	BCC_A2 (x(Te) 0) + LIQUID (x(Te) 0.02831) + EUTE_B1 (x(Te) 0.5)
EuTe-15Gha.tdb	1053.19	BCC_A2 (x(Te) 0) + LIQUID (x(Te) 0.02825) + EUTE_B1 (x(Te) 0.5)
EuTe-15Gha.tdb	1053.19	BCC_A2 (x(Te) 0) + LIQUID (x(Te) 0.02819) + EUTE_B1 (x(Te) 0.5)
EuTe-15Gha.tdb	792.98	EUTE_B1 (x(Te) 0.57103) + EU4TE7 (x(Te) 0.63636) + LIQUID (x(Te) 0.92683)
EuTe-15Gha.tdb	702.69	EU4TE7 (x(Te) 0.63636) + EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.95524)
EuTe-15Gha.tdb	702.69	EU4TE7 (x(Te) 0.63636) + EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.95529)
EuTe-15Gha.tdb	702.69	EU4TE7 (x(Te) 0.63636) + EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.95518)
EuTe-15Gha.tdb	683.23	EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.96165) + HEXAGONAL_A8 (x(Te) 1)
EuTe-15Gha.tdb	683.23	EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.96171) + HEXAGONAL_A8 (x(Te) 1)
EuTe-21Don.tdb	1053.31	BCC_A2 (x(Te) 0) + LIQUID (x(Te) 0.03292) + EUTE_B1 (x(Te) 0.5)
EuTe-21Don.tdb	1053.31	BCC_A2 (x(Te) 0) + LIQUID (x(Te) 0.03285) + EUTE_B1 (x(Te) 0.5)
EuTe-21Don.tdb	1053.31	BCC_A2 (x(Te) 0) + LIQUID (x(Te) 0.03283) + EUTE_B1 (x(Te) 0.5)
EuTe-21Don.tdb	793.01	EUTE_B1 (x(Te) 0.57439) + EU4TE7 (x(Te) 0.63636) + LIQUID (x(Te) 0.92355)
EuTe-21Don.tdb	703	EU4TE7 (x(Te) 0.63636) + EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.95205)
EuTe-21Don.tdb	703	EU4TE7 (x(Te) 0.63636) + EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.9521)
EuTe-21Don.tdb	703	EU4TE7 (x(Te) 0.63636) + EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.95198)
EuTe-21Don.tdb	683.77	EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.95877) + HEXAGONAL_A8 (x(Te) 1)
EuTe-21Don.tdb	683.77	EU3TE7 (x(Te) 0.7) + LIQUID (x(Te) 0.95884) + HEXAGONAL_A8 (x(Te) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull EuTe-15Gha

Invariant reactions (literature)

Invariant reactions reported in the literature for the Eu–Te system (12)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1806	congruent melting: Liq <-> (EuTe)	Liq: Te 0.5; (EuTe): Te 0.5	experimental	[1] Ghamri 2015 cites Sadovskaya 1970	Table 3, p. 4, row 5 report
1799.09	congruent melting: Liq <-> (EuTe)	Liq: Te 0.5; (EuTe): Te 0.5	model	[1] Ghamri 2015	Table 3, p. 4, row 6 report
1799	congruent melting: Liq <-> (EuTe)	Liq: Te 0.5; (EuTe): Te 0.5	experimental	[1] Ghamri 2015 cites Okamoto 1990	Table 3, p. 4, row 4 report
1071	eutectic: Liq <-> (Eu) + (EuTe)	(Eu): Te 0; (EuTe): Te 0.5	experimental	[1] Ghamri 2015 cites Sadovskaya 1970	Table 3, p. 4, row 2 report
1053.19	eutectic: Liq <-> (Eu) + (EuTe)	Liq: Te 0.0282; (Eu): Te 0; (EuTe): Te 0.5	model	[1] Ghamri 2015	Table 3, p. 4, row 3 report
1053	eutectic: Liq <-> (Eu) + (EuTe)	(Eu): Te 0; (EuTe): Te 0.5	experimental	[1] Ghamri 2015 cites Okamoto 1990	Table 3, p. 4, row 1 report
793.2	peritectic: Liq + (EuTe) <-> Eu4Te7	Liq: Te 0.9268; (EuTe): Te 0.571; Eu4Te7: Te 0.714	model	[1] Ghamri 2015	Table 3, p. 4, row 8 report
793	peritectic: Liq + (EuTe) <-> Eu4Te7	(EuTe): Te 0.571; Eu4Te7: Te 0.714	experimental	[1] Ghamri 2015 cites Sadovskaya 1970	Table 3, p. 4, row 7 report
703.09	peritectic: Liq + Eu4Te7 <-> Eu3Te7	Liq: Te 0.9551; Eu4Te7: Te 0.636; Eu3Te7: Te 0.7	model	[1] Ghamri 2015	Table 3, p. 4, row 10 report
703	peritectic: Liq + Eu4Te7 <-> Eu3Te7	Eu4Te7: Te 0.636; Eu3Te7: Te 0.7	experimental	[1] Ghamri 2015 cites Sadovskaya 1970	Table 3, p. 4, row 9 report
683.23	eutectic: Liq <-> (Te) + Eu3Te7	Liq: Te 0.9616; (Te): Te 1; Eu3Te7: Te 0.7	model	[1] Ghamri 2015	Table 3, p. 4, row 12 report
683	eutectic: Liq <-> (Te) + Eu3Te7	(Te): Te 1; Eu3Te7: Te 0.7	experimental	[1] Ghamri 2015 cites Sadovskaya 1970	Table 3, p. 4, row 11 report

Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

H. Ghamri, Y. Djaballah, A. Belgacem-Bouzida, Thermodynamic modeling of the Eu–Te and Te–Yb systems, Journal of Alloys and Compounds 643, 121-128 (2015). doi:10.1016/j.jallcom.2015.03.224

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735891
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 the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); 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). 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_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@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}
}