Ag–Tb system

25 accepted literature values from 1 paper(s) (experimental 18, model 7); 1 calculated phase diagram(s). 5 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 (7) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	18
model	7

Accepted values by property group
Property group	Values
invariant reaction	22
phase transition	3

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
AgTb-09Wan.tdb	S.L. Wang, C.P. Wang, X.J. Liu, A.T. Tang, F.S. Pan, K. Ishida, J. Alloys Compd., 484, 102-7(2009). doi:10.1016/j.jallcom.2009.04.037	`306744ad1d04e39583c346225340b87bd2a4190833e4233eee56b6b80436bcaf`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AgTb-09Wan.tdb	1562.02	LIQUID (x(Tb) 0.97132) + BCC_A2 (x(Tb) 0.99996) + HCP_A3 (x(Tb) 0.99996)
AgTb-09Wan.tdb	1562.02	LIQUID (x(Tb) 0.97132) + HCP_A3 (x(Tb) 0.99996) + BCC_A2 (x(Tb) 0.99996)
AgTb-09Wan.tdb	1171.61	AG2TB_C11B (x(Tb) 0.33333) + LIQUID (x(Tb) 0.36308) + AGTB_B2 (x(Tb) 0.5)
AgTb-09Wan.tdb	1171.6	AG2TB_C11B (x(Tb) 0.33333) + LIQUID (x(Tb) 0.36293) + AGTB_B2 (x(Tb) 0.5)
AgTb-09Wan.tdb	1171.6	AG2TB_C11B (x(Tb) 0.33333) + LIQUID (x(Tb) 0.36287) + AGTB_B2 (x(Tb) 0.5)
AgTb-09Wan.tdb	1162.3	AG51TB14 (x(Tb) 0.22709) + LIQUID (x(Tb) 0.29704) + AG2TB_C11B (x(Tb) 0.33333)
AgTb-09Wan.tdb	1162.3	AG51TB14 (x(Tb) 0.22709) + LIQUID (x(Tb) 0.29704) + AG2TB_C11B (x(Tb) 0.33333)
AgTb-09Wan.tdb	1134.14	AGTB_B2 (x(Tb) 0.5) + LIQUID (x(Tb) 0.75125) + HCP_A3 (x(Tb) 0.99996)
AgTb-09Wan.tdb	1134.14	AGTB_B2 (x(Tb) 0.5) + LIQUID (x(Tb) 0.75114) + HCP_A3 (x(Tb) 0.99996)
AgTb-09Wan.tdb	1072.48	FCC_A1 (x(Tb) 0.01625) + LIQUID (x(Tb) 0.10751) + AG51TB14 (x(Tb) 0.21541)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ag–Tb system (22)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1418.15	congruent melting: L ↔ AgTb	L: Tb 0.5; AgTb: Tb 0.5	experimental	[1] Wang 2009 cites Delfino 1976	Table 3, p. 4, row 4 report
1418.15	congruent melting: L ↔ AgTb	L: Tb 0.5; AgTb: Tb 0.5	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 5 report
1418.05	congruent melting: L ↔ AgTb	L: Tb 0.5; AgTb: Tb 0.5	model	[1] Wang 2009	Table 3, p. 4, row 6 report
1258.15	congruent melting: L ↔ Ag51Tb14	L: Tb 0.215; Ag51Tb14: Tb 0.215	experimental	[1] Wang 2009 cites Delfino 1976	Table 3, p. 4, row 16 report
1258.15	congruent melting: L ↔ Ag51Tb14		experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 17 report
1256.25	congruent melting: L ↔ Ag51Tb14		model	[1] Wang 2009	Table 3, p. 4, row 18 report
1188.15	congruent melting: L ↔ Ag2Tb	L: Tb 0.333; Ag2Tb: Tb 0.333	experimental	[1] Wang 2009 cites Delfino 1976	Table 3, p. 4, row 10 report
1188.15	congruent melting: L ↔ Ag2Tb	L: Tb 0.333; Ag2Tb: Tb 0.333	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 11 report
1186.45	congruent melting: L ↔ Ag2Tb	L: Tb 0.333; Ag2Tb: Tb 0.333	model	[1] Wang 2009	Table 3, p. 4, row 12 report
1173.15	eutectic: L ↔ AgTb + Ag2Tb	L: Tb 0.35; AgTb: Tb 0.5; Ag2Tb: Tb 0.333	experimental	[1] Wang 2009 cites Delfino 1976	Table 3, p. 4, row 7 report
1173.15	eutectic: L ↔ AgTb + Ag2Tb	L: Tb 0.35; AgTb: Tb 0.5; Ag2Tb: Tb 0.333	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 8 report
1171.65	eutectic: L ↔ AgTb + Ag2Tb	L: Tb 0.363; AgTb: Tb 0.5; Ag2Tb: Tb 0.333	model	[1] Wang 2009	Table 3, p. 4, row 9 report
1162.75	eutectic: L ↔ Ag2Tb + Ag51Tb14	L: Tb 0.297; Ag2Tb: Tb 0.333; Ag51Tb14: Tb 0.227	model	[1] Wang 2009	Table 3, p. 4, row 15 report
1158.15	eutectic: L ↔ Ag2Tb + Ag51Tb14	L: Tb 0.315; Ag2Tb: Tb 0.333; Ag51Tb14: Tb 0.215	experimental	[1] Wang 2009 cites Delfino 1976	Table 3, p. 4, row 13 report
1158.15	eutectic: L ↔ Ag2Tb + Ag51Tb14	L: Tb 0.315; Ag2Tb: Tb 0.333; Ag51Tb14: Tb 0.255	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 14 report
1134.15	eutectic: L ↔ αTb + AgTb	L: Tb 0.751; αTb: Tb 1; AgTb: Tb 0.5	model	[1] Wang 2009	Table 3, p. 4, row 3 report
1133.15	eutectic: L ↔ αTb + AgTb	L: Tb 0.75; αTb: Tb 1; AgTb: Tb 0.5	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 2 report
1133.15	eutectic: L ↔ αTb + AgTb	L: Tb 0.75; αTb: Tb 1; AgTb: Tb 0.5	experimental	[1] Wang 2009 cites Delfino 1976	Table 3, p. 4, row 1 report
1078.15	eutectic: L ↔ Ag51Tb14 + (Ag)	L: Tb 0.11; Ag51Tb14: Tb 0.215; (Ag): Tb 0.011	experimental	[1] Wang 2009 cites Delfino 1976	Table 3, p. 4, row 20 report
1074.15	eutectic: L ↔ Ag51Tb14 + (Ag)	Ag51Tb14: Tb 0.215; (Ag): Tb 0.011	experimental	[1] Wang 2009 cites Gschneidner 1970	Table 3, p. 4, row 19 report
1074.15	eutectic: L ↔ Ag51Tb14 + (Ag)	L: Tb 0.11; Ag51Tb14: Tb 0.215; (Ag): Tb 0.011	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 21 report
1074.05	eutectic: L ↔ Ag51Tb14 + (Ag)	L: Tb 0.107; Ag51Tb14: Tb 0.215; (Ag): Tb 0.016	model	[1] Wang 2009	Table 3, p. 4, row 22 report

Other properties

Phase transition (3)

Phase transition, Ag–Tb system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1188.15 K	1188.15	Ag2Tb	experimental	[1] Wang 2009 cites Delfino 1976	p. 1 report	[8] investigated the phase diagram in the Ag-Tb system, and reported three stoichiometry compounds of the Ag51 Tb14 (melting point, 985 ◦ C), Ag2 Tb (melting point, 915 ◦ C) and AgTb (melting point, 1145 ◦ C), and also determined four eutectic reactions: L ↔ (Ag) + Ag51 Tb14 at 805 ◦ C, L ↔ Ag51 Tb14 + Ag2 Tb at 885 ◦ C, L ↔ Ag2 Tb + AgTb at 900 ◦ C, and L ↔ AgTb + ␣Tb at 860 ◦ C.
Phase transition	1258.15 K	1258.15	Ag51Tb14	experimental	[1] Wang 2009 cites Delfino 1976	p. 1 report	[8] investigated the phase diagram in the Ag-Tb system, and reported three stoichiometry compounds of the Ag51 Tb14 (melting point, 985 ◦ C), Ag2 Tb (melting point, 915 ◦ C) and AgTb (melting point, 1145 ◦ C), and also determined four eutectic reactions: L ↔ (Ag) + Ag51 Tb14 at 805 ◦ C, L ↔ Ag51 Tb14 + Ag2 Tb at 885 ◦ C, L ↔ Ag2 Tb + AgTb at 900 ◦ C, and L ↔ AgTb + ␣Tb at 860 ◦ C.
Phase transition	1418.15 K	1418.15	AgTb	experimental	[1] Wang 2009 cites Delfino 1976	p. 1 report	[8] investigated the phase diagram in the Ag-Tb system, and reported three stoichiometry compounds of the Ag51 Tb14 (melting point, 985 ◦ C), Ag2 Tb (melting point, 915 ◦ C) and AgTb (melting point, 1145 ◦ C), and also determined four eutectic reactions: L ↔ (Ag) + Ag51 Tb14 at 805 ◦ C, L ↔ Ag51 Tb14 + Ag2 Tb at 885 ◦ C, L ↔ Ag2 Tb + AgTb at 900 ◦ C, and L ↔ AgTb + ␣Tb at 860 ◦ C.

Sources

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

S.L. Wang, C.P. Wang, X.J. Liu, A.T. Tang, F.S. Pan, K. Ishida, Thermodynamic assessments of the Ag–Tb and Ag–Ho systems, Journal of Alloys and Compounds 484, 102-107 (2009). doi:10.1016/j.jallcom.2009.04.037

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}
}