Ag–Te system

24 accepted literature values from 1 paper(s) (experimental 12, model 12); 4 calculated phase diagram(s). 2 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 (16) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	12
model	12

Accepted values by property group
Property group	Values
invariant reaction	14
formation	10

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
AgTe-04Kor-LB.tdb	J. Korb, unpublished, GTT, 2004.	`488331d1ba21cb9be3948cbbab1936ce323f7ed2d157deccd8182b1ec9113b38`	viewer · TDB · JSON
AgTe-04Kor-newTe.tdb	J. Korb, unpublished, GTT, 2004.	`91e63cfc06b4d3c2ac68365684f94a6bd699a558d220038b13d7d18173b9d059`	viewer · TDB · JSON
AgTe-09Gie.tdb	W. Gierlotka, J. Alloys Compd., 485, 231-35(2009). doi:10.1016/j.jallcom.2009.06.028	`460b220490c1f3ff96d63254e0b945deccb6f650ebf96a24897504ee57a679c4`	viewer · TDB · JSON
AgTe-10Gie.tdb	W. Gierlotka, J. Lapsa, K. Fitzner, J. Phase Equilib. Diffus., 31, 509-17(2010). doi:10.1007/s11669-010-9791-8	`ea58eda35a9a46d1b1e3da7ea7f2e5c501c31cbceb5f3682723bf34e9cc9bec8`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AgTe-04Kor-LB.tdb	1198.78	LIQUID#2 (x(Te) 0.12115) + LIQUID (x(Te) 0.28817) + AG2TE (x(Te) 0.33333)
AgTe-04Kor-LB.tdb	1162.13	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.07605) + AG2TE (x(Te) 0.33333)
AgTe-04Kor-LB.tdb	690.3	AG2TE (x(Te) 0.33333) + AG19TE10 (x(Te) 0.34483) + LIQUID (x(Te) 0.63484)
AgTe-04Kor-LB.tdb	626.06	AG19TE10 (x(Te) 0.34483) + AG5TE3 (x(Te) 0.37879) + LIQUID (x(Te) 0.6607)
AgTe-04Kor-LB.tdb	553.14	AG5TE3 (x(Te) 0.37879) + LIQUID (x(Te) 0.69608) + HEXAGONAL_A8 (x(Te) 1)
AgTe-04Kor-LB.tdb	393.94	AG2TE (x(Te) 0.33333) + AG19TE10 (x(Te) 0.34483) + AG5TE3 (x(Te) 0.37879)
AgTe-04Kor-newTe.tdb	1198.81	LIQUID#2 (x(Te) 0.12122) + LIQUID (x(Te) 0.288) + AG2TE (x(Te) 0.33333)
AgTe-04Kor-newTe.tdb	1162.13	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.07605) + AG2TE (x(Te) 0.33333)
AgTe-04Kor-newTe.tdb	697.7	AG2TE (x(Te) 0.33333) + AG19TE10 (x(Te) 0.34483) + LIQUID (x(Te) 0.63211)
AgTe-04Kor-newTe.tdb	631.48	AG19TE10 (x(Te) 0.34483) + AG5TE3 (x(Te) 0.37879) + LIQUID (x(Te) 0.65868)
AgTe-04Kor-newTe.tdb	534.63	AG5TE3 (x(Te) 0.37879) + LIQUID (x(Te) 0.70409) + HEXAGONAL_A8 (x(Te) 1)
AgTe-04Kor-newTe.tdb	393.94	AG2TE (x(Te) 0.33333) + AG19TE10 (x(Te) 0.34483) + AG5TE3 (x(Te) 0.37879)
AgTe-09Gie.tdb	1183.07	LIQUID#2 (x(Te) 0.12367) + LIQUID (x(Te) 0.31402) + AG2TE_HT2 (x(Te) 0.33333)
AgTe-09Gie.tdb	1139.24	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.09739) + AG2TE_HT2 (x(Te) 0.33333)
AgTe-09Gie.tdb	977.76	FCC_A1 (x(Te) 0) + AG2TE_HT2 (x(Te) 0.33333) + AG2TE_HT1 (x(Te) 0.33333)
AgTe-09Gie.tdb	977.76	AG2TE_HT1 (x(Te) 0.33333) + AG2TE_HT2 (x(Te) 0.33333) + LIQUID (x(Te) 0.41462)
AgTe-09Gie.tdb	719.91	AG2TE_HT1 (x(Te) 0.33333) + AG19TE10_HT (x(Te) 0.34483) + LIQUID (x(Te) 0.5427)
AgTe-09Gie.tdb	694.53	AG19TE10_HT (x(Te) 0.34483) + AG5TE3_HT (x(Te) 0.38) + LIQUID (x(Te) 0.56545)
AgTe-09Gie.tdb	633.35	AG5TE3_HT (x(Te) 0.38) + LIQUID (x(Te) 0.66302) + HEXAGONAL_A8 (x(Te) 1)
AgTe-09Gie.tdb	568.12	AG5TE3_HT (x(Te) 0.38) + AG5TE3_LT (x(Te) 0.38) + HEXAGONAL_A8 (x(Te) 1)
AgTe-09Gie.tdb	568.12	AG19TE10_HT (x(Te) 0.34483) + AG5TE3_LT (x(Te) 0.38) + AG5TE3_HT (x(Te) 0.38)
AgTe-09Gie.tdb	453.52	AG19TE10_LT (x(Te) 0.34483) + AG19TE10_HT (x(Te) 0.34483) + AG5TE3_LT (x(Te) 0.38)
AgTe-09Gie.tdb	453.52	AG2TE_HT1 (x(Te) 0.33333) + AG19TE10_LT (x(Te) 0.34483) + AG19TE10_HT (x(Te) 0.34483)
AgTe-09Gie.tdb	433.2	FCC_A1 (x(Te) 0) + AG2TE_LT (x(Te) 0.33333) + AG2TE_HT1 (x(Te) 0.33333)
AgTe-09Gie.tdb	433.2	AG2TE_LT (x(Te) 0.33333) + AG2TE_HT1 (x(Te) 0.33333) + AG19TE10_LT (x(Te) 0.34483)
AgTe-09Gie.tdb	389.5	AG2TE_LT (x(Te) 0.33333) + AG19TE10_LT (x(Te) 0.34483) + AG5TE3_LT (x(Te) 0.38)
AgTe-10Gie.tdb	1175.5	LIQUID#2 (x(Te) 0.12075) + LIQUID (x(Te) 0.31472) + AG2TE (x(Te) 0.33333)
AgTe-10Gie.tdb	1138.55	FCC_A1 (x(Te) 0) + LIQUID (x(Te) 0.09829) + AG2TE (x(Te) 0.33333)
AgTe-10Gie.tdb	724.87	AG2TE (x(Te) 0.33333) + AG19TE10 (x(Te) 0.34483) + LIQUID (x(Te) 0.51709)
AgTe-10Gie.tdb	693.27	AG19TE10 (x(Te) 0.34483) + AG5TE3 (x(Te) 0.38) + LIQUID (x(Te) 0.54208)
AgTe-10Gie.tdb	636.48	AG5TE3 (x(Te) 0.38) + LIQUID (x(Te) 0.62932) + HEXAGONAL_A8 (x(Te) 1)
AgTe-10Gie.tdb	386.83	AG2TE (x(Te) 0.33333) + AG19TE10 (x(Te) 0.34483) + AG5TE3 (x(Te) 0.38)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AgTe-04Kor-LB · CALPHAD hull AgTe-04Kor-newTe · CALPHAD hull AgTe-09Gie

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ag–Te system (14)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1233	congruent melting: L -> γAg2Te	γAg2Te: Ag 0.666667, Te 0.333333; reactive phase: Te 0.334	model	[1] Gierlotka 2009	Table 3, p. 4, row 5 report
1233	congruent melting: L -> γAg2Te	γAg2Te: Ag 0.666667, Te 0.333333; reactive phase: Te 0.333	experimental	[1] Gierlotka 2009 cites Kracek 1966	Table 3, p. 4, row 6 report
1155	monotectic: L2 -> L1 + γAg2Te	γAg2Te: Ag 0.666667, Te 0.333333; reactive phase: Te 0.32	model	[1] Gierlotka 2009	Table 3, p. 4, row 1 report
1154	monotectic: L2 -> L1 + γAg2Te	γAg2Te: Ag 0.666667, Te 0.333333; reactive phase: Te 0.303	experimental	[1] Gierlotka 2009 cites Kracek 1966	Table 3, p. 4, row 2 report
1142	eutectic: L -> FCC_A1 + γAg2Te	γAg2Te: Ag 0.666667, Te 0.333333	experimental	[1] Gierlotka 2009 cites Kracek 1966	Table 3, p. 4, row 4 report
1142	eutectic: L -> FCC_A1 + γAg2Te	γAg2Te: Ag 0.666667, Te 0.333333	model	[1] Gierlotka 2009	Table 3, p. 4, row 3 report
733	βAg2Te + L -> γ	βAg2Te: Ag 0.666667, Te 0.333333; γ: Ag 0.666667, Te 0.333333	experimental	[1] Gierlotka 2009 cites Kracek 1966	Table 3, p. 4, row 8 report
724	βAg2Te + L -> γ	βAg2Te: Ag 0.666667, Te 0.333333; γ: Ag 0.666667, Te 0.333333	model	[1] Gierlotka 2009	Table 3, p. 4, row 7 report
694	γ + L -> βAg5Te3	γ: Ag 0.666667, Te 0.333333; βAg5Te3: Ag 0.62, Te 0.38	model	[1] Gierlotka 2009	Table 3, p. 4, row 9 report
693	γ + L -> βAg5Te3	γ: Ag 0.666667, Te 0.333333; βAg5Te3: Ag 0.62, Te 0.38	experimental	[1] Gierlotka 2009 cites Kracek 1966	Table 3, p. 4, row 10 report
633	eutectic: L -> βAg5Te3 + Hex_A8	βAg5Te3: Ag 0.62, Te 0.38	model	[1] Gierlotka 2009	Table 3, p. 4, row 11 report
626	eutectic: L -> βAg5Te3 + Hex_A8	βAg5Te3: Ag 0.62, Te 0.38	experimental	[1] Gierlotka 2009 cites Kracek 1966	Table 3, p. 4, row 12 report
395	γ -> αAg2Te + αAg5Te3	γ: Ag 0.666667, Te 0.333333; αAg2Te: Ag 0.666667, Te 0.333333; αAg5Te3: Ag 0.62, Te 0.38	model	[1] Gierlotka 2009	Table 3, p. 4, row 13 report
393	γ -> αAg2Te + αAg5Te3	γ: Ag 0.666667, Te 0.333333; αAg2Te: Ag 0.666667, Te 0.333333; αAg5Te3: Ag 0.62, Te 0.38	experimental	[1] Gierlotka 2009 cites Kracek 1966	Table 3, p. 4, row 14 report

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Ag–Te system (10)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
αAg2Te	Ag2Te	-16.243 kJ/mol-atom	273	model	-19.54 (mp-aaaaacjg)	-6.298 (oqmd-13143)	[1] Gierlotka 2009	Table 4, p. 4, row 3 report
αAg2Te	Ag2Te	-12 kJ/mol-atom	273	experimental	-19.54 (mp-aaaaacjg)	-6.298 (oqmd-13143)	[1] Gierlotka 2009 cites Pool 1965	Table 4, p. 4, row 4 report
αAg5Te3		-12.8 kJ/mol-atom	523	model			[1] Gierlotka 2009	Table 4, p. 4, row 7 report
αAg5Te3		-8.45 kJ/mol-atom	523	experimental			[1] Gierlotka 2009 cites Zaleska 1975	Table 4, p. 4, row 8 report
αAg655Te345		-12.697 kJ/mol-atom	400	model			[1] Gierlotka 2009	Table 4, p. 4, row 9 report
αAg655Te345		-12.166 kJ/mol-atom	400	experimental			[1] Gierlotka 2009 cites Mills 1974	Table 4, p. 4, row 10 report
βAg2Te	Ag2Te	-8.6 kJ/mol-atom	523	experimental	-19.54 (mp-aaaaacjg)	-6.298 (oqmd-13143)	[1] Gierlotka 2009 cites Castanet 1974	Table 4, p. 4, row 2 report
βAg2Te	Ag2Te	-5.383 kJ/mol-atom	523	model	-19.54 (mp-aaaaacjg)	-6.298 (oqmd-13143)	[1] Gierlotka 2009	Table 4, p. 4, row 1 report
βAg5Te3		-8.07 kJ/mol-atom	693	experimental			[1] Gierlotka 2009 cites Castanet 1974	Table 4, p. 4, row 6 report
βAg5Te3		-4.356 kJ/mol-atom	693	model			[1] Gierlotka 2009	Table 4, p. 4, row 5 report

Sources

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

Wojciech Gierlotka, Thermodynamic assessment of the Ag–Te binary system, Journal of Alloys and Compounds 485, 231-235 (2009). doi:10.1016/j.jallcom.2009.06.028

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}
}