Ag–Gd system

38 accepted literature values from 2 paper(s) (experimental 24, model 14); 2 calculated phase diagram(s). 4 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	24
model	14

Accepted values by property group
Property group	Values
invariant reaction	33
phase transition	4
other property	1

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
AgGd-08Wan.tdb	H. Wang, L.G. Zhang, W.J. Zhu, H.S. Liu, Z.P. Jin, J. Alloys Compd., 466, 165-68(2008). doi:10.1016/j.jallcom.2007.11.049	`7fcc4d1b12e901c53be3c762f94484a1c5d40bce88ee0ecff509938512d230d5`	viewer · TDB · JSON
AgGd-09Wan.tdb	S.L. Wang, C.P. Wang, X.J. Liu, K. Ishida, J. Alloys Compd., 476, 245-52(2009). doi:10.1016/j.jallcom.2008.09.129	`80addf620c78d7fe9eb80647f7a646982d81f8dfb93c02736a9f93bee3ab42f3`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AgGd-08Wan.tdb	1508.87	LIQUID (x(Gd) 0.953) + HCP_A3 (x(Gd) 0.99836) + BCC_A2 (x(Gd) 0.99849)
AgGd-08Wan.tdb	1093.86	AG51GD14 (x(Gd) 0.21538) + AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.33759)
AgGd-08Wan.tdb	1093.86	AG51GD14 (x(Gd) 0.21538) + AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.33766)
AgGd-08Wan.tdb	1093.86	AG51GD14 (x(Gd) 0.21538) + AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.33742)
AgGd-08Wan.tdb	1092.27	AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.34654) + AGGD_B2 (x(Gd) 0.5)
AgGd-08Wan.tdb	1092.26	AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.34637) + AGGD_B2 (x(Gd) 0.5)
AgGd-08Wan.tdb	1092.26	AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.34634) + AGGD_B2 (x(Gd) 0.5)
AgGd-08Wan.tdb	1053.03	AGGD_B2 (x(Gd) 0.5) + LIQUID (x(Gd) 0.70271) + HCP_A3 (x(Gd) 0.99778)
AgGd-08Wan.tdb	1052.14	FCC_A1 (x(Gd) 0.00775) + LIQUID (x(Gd) 0.08798) + AG51GD14 (x(Gd) 0.21538)
AgGd-08Wan.tdb	1052.14	FCC_A1 (x(Gd) 0.00775) + LIQUID (x(Gd) 0.08795) + AG51GD14 (x(Gd) 0.21538)
AgGd-09Wan.tdb	1507.85	LIQUID (x(Gd) 0.96866) + BCC_A2 (x(Gd) 0.99989) + HCP_A3 (x(Gd) 0.99995)
AgGd-09Wan.tdb	1507.85	LIQUID (x(Gd) 0.96866) + BCC_A2 (x(Gd) 0.99989) + HCP_A3 (x(Gd) 0.99995)
AgGd-09Wan.tdb	1104.66	AG51GD14 (x(Gd) 0.21538) + LIQUID (x(Gd) 0.33259) + AG2GD_C11B (x(Gd) 0.33333)
AgGd-09Wan.tdb	1104.66	AG51GD14 (x(Gd) 0.21538) + LIQUID (x(Gd) 0.33267) + AG2GD_C11B (x(Gd) 0.33333)
AgGd-09Wan.tdb	1104.66	AG51GD14 (x(Gd) 0.21538) + LIQUID (x(Gd) 0.33252) + AG2GD_C11B (x(Gd) 0.33333)
AgGd-09Wan.tdb	1103.28	AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.34442) + AGGD_B2 (x(Gd) 0.5)
AgGd-09Wan.tdb	1103.28	AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.34436) + AGGD_B2 (x(Gd) 0.5)
AgGd-09Wan.tdb	1103.28	AG2GD_C11B (x(Gd) 0.33333) + LIQUID (x(Gd) 0.34449) + AGGD_B2 (x(Gd) 0.5)
AgGd-09Wan.tdb	1074.85	FCC_A1 (x(Gd) 0.00856) + LIQUID (x(Gd) 0.09038) + AG51GD14 (x(Gd) 0.21538)
AgGd-09Wan.tdb	1074.85	FCC_A1 (x(Gd) 0.00855) + LIQUID (x(Gd) 0.09032) + AG51GD14 (x(Gd) 0.21538)
AgGd-09Wan.tdb	1059.4	AGGD_B2 (x(Gd) 0.5) + LIQUID (x(Gd) 0.7564) + HCP_A3 (x(Gd) 0.99989)
AgGd-09Wan.tdb	1059.4	AGGD_B2 (x(Gd) 0.5) + LIQUID (x(Gd) 0.75629) + HCP_A3 (x(Gd) 0.99989)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AgGd-08Wan

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ag–Gd system (33)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1588.15	congruent melting: L ↔ βGd	βGd: Gd 1	experimental	[1] Wang 2009 cites Kiessler 1972 doi	Table 3, p. 4, row 1 report
1586.15	congruent melting: L ↔ βGd	βGd: Gd 1	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 2 report
1586.15	congruent melting: L ↔ βGd	βGd: Gd 1	model	[1] Wang 2009	Table 3, p. 4, row 3 report
1374.75	congruent melting: L ↔ AgGd	L: Gd 0.5; AgGd: Gd 0.5	model	[1] Wang 2009	Table 3, p. 4, row 11 report
1373.15	congruent melting: L ↔ AgGd	L: Gd 0.5; AgGd: Gd 0.5	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 10 report
1373.15	congruent melting: L ↔ AgGd	L: Gd 0.5; AgGd: Gd 0.5	experimental	[1] Wang 2009 cites Kiessler 1972 doi	Table 3, p. 4, row 9 report
1248.15	congruent melting: L ↔ Ag51Gd14	L: Gd 0.25; Ag51Gd14: Gd 0.25	experimental	[1] Wang 2009 cites Kiessler 1972 doi	Table 3, p. 4, row 18 report
1248.15	congruent melting: L ↔ Ag51Gd14	L: Gd 0.215; Ag51Gd14: Gd 0.215	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 19 report
1247.85	congruent melting: L ↔ Ag51Gd14	L: Gd 0.215; Ag51Gd14: Gd 0.215	model	[1] Wang 2009	Table 3, p. 4, row 20 report
1235.05	congruent melting: L ↔ (Ag)	(Ag): Gd 0	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 26 report
1235.05	congruent melting: L ↔ (Ag)	(Ag): Gd 0	model	[1] Wang 2009	Table 3, p. 4, row 27 report
1233.65	congruent melting: L ↔ (Ag)	(Ag): Gd 0	experimental	[1] Wang 2009 cites Kiessler 1972 doi	Table 3, p. 4, row 25 report
1103.15	peritectic: L + Ag51Gd14 ↔ Ag2Gd	L: Gd 0.35; Ag51Gd14: Gd 0.25; Ag2Gd: Gd 0.333	experimental	[1] Wang 2009 cites Kiessler 1972 doi	Table 3, p. 4, row 15 report
1103.15	peritectic: L + Ag51Gd14 ↔ Ag2Gd	L: Gd 0.35; Ag51Gd14: Gd 0.215; Ag2Gd: Gd 0.333	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 16 report
1103	peritectic: L + Ag51Gd14 -> Ag2Gd	L: Gd 0.35; Ag51Gd14: Gd 0.215385; Ag2Gd: Gd 0.333333	experimental	[2] Wang 2008 cites Kiessler 1972 doi	Table 2, p. 3, row 5 report
1101.75	peritectic: L + Ag51Gd14 ↔ Ag2Gd	L: Gd 0.335; Ag51Gd14: Gd 0.215; Ag2Gd: Gd 0.333	model	[1] Wang 2009	Table 3, p. 4, row 17 report
1099.75	eutectic: L ↔ AgGd + Ag2Gd	L: Gd 0.347; AgGd: Gd 0.5; Ag2Gd: Gd 0.333	model	[1] Wang 2009	Table 3, p. 4, row 14 report
1099	peritectic: L + Ag51Gd14 -> Ag2Gd	L: Gd 0.3367; Ag51Gd14: Gd 0.215385; Ag2Gd: Gd 0.333333	model	[2] Wang 2008	Table 2, p. 3, row 6 report
1098.15	eutectic: L ↔ AgGd + Ag2Gd	L: Gd 0.37; AgGd: Gd 0.5; Ag2Gd: Gd 0.333	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 13 report
1098.15	eutectic: L ↔ AgGd + Ag2Gd	L: Gd 0.37; AgGd: Gd 0.5; Ag2Gd: Gd 0.333	experimental	[1] Wang 2009 cites Kiessler 1972 doi	Table 3, p. 4, row 12 report
1098	eutectic: L -> Ag2Gd + AgGd	L: Gd 0.375; Ag2Gd: Gd 0.333333; AgGd: Gd 0.5	experimental	[2] Wang 2008 cites Kiessler 1972 doi	Table 2, p. 3, row 7 report
1098	eutectic: L -> Ag2Gd + AgGd	L: Gd 0.3455; Ag2Gd: Gd 0.333333; AgGd: Gd 0.5	model	[2] Wang 2008	Table 2, p. 3, row 8 report
1078.15	eutectic: L ↔ Ag51Gd14 + (Ag)	L: Gd 0.11; Ag51Gd14: Gd 0.215; (Ag): Gd 0.0095	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 23 report
1078.15	eutectic: L ↔ Ag51Gd14 + (Ag)	Ag51Gd14: Gd 0.215; (Ag): Gd 0.0095	experimental	[1] Wang 2009 cites Gschneidner 1970	Table 3, p. 4, row 22 report
1078.05	eutectic: L ↔ Ag51Gd14 + (Ag)	L: Gd 0.0899; Ag51Gd14: Gd 0.215; (Ag): Gd 0.0093	model	[1] Wang 2009	Table 3, p. 4, row 24 report
1066	eutectic: L -> AgGd + Gd	L: Gd 0.71; AgGd: Gd 0.5	model	[2] Wang 2008	Table 2, p. 3, row 12 report
1063.15	eutectic: L ↔ αGd + AgGd	L: Gd 0.775; αGd: Gd 1; AgGd: Gd 0.5	experimental	[1] Wang 2009 cites Kiessler 1972 doi	Table 3, p. 4, row 6 report
1063.15	eutectic: L ↔ αGd + AgGd	L: Gd 0.775; αGd: Gd 1; AgGd: Gd 0.5	experimental	[1] Wang 2009 cites Gschneidner 1985 doi	Table 3, p. 4, row 7 report
1063	eutectic: L -> AgGd + Gd	L: Gd 0.77; AgGd: Gd 0.5	experimental	[2] Wang 2008 cites Kiessler 1972 doi	Table 2, p. 3, row 11 report
1059.45	eutectic: L ↔ αGd + AgGd	L: Gd 0.753; αGd: Gd 1; AgGd: Gd 0.5	model	[1] Wang 2009	Table 3, p. 4, row 8 report
1055	eutectic: L -> Fcc(Ag) + Ag51Gd14	L: Gd 0.087; Ag51Gd14: Gd 0.215385	model	[2] Wang 2008	Table 2, p. 3, row 2 report
1053	eutectic: L -> Fcc(Ag) + Ag51Gd14	L: Gd 0.11; Ag51Gd14: Gd 0.215385	experimental	[2] Wang 2008 cites Kiessler 1972 doi	Table 2, p. 3, row 1 report
1048.15	eutectic: L ↔ Ag51Gd14 + (Ag)	L: Gd 0.11; Ag51Gd14: Gd 0.25	experimental	[1] Wang 2009 cites Kiessler 1972 doi	Table 3, p. 4, row 21 report

Other properties

Phase transition (4)

Phase transition, Ag–Gd system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1243 K	1243	congruent melting: L -> Ag51Gd14 L: Gd 0.215385; Ag51Gd14: Gd 0.215385	model	[2] Wang 2008	Table 2, p. 3, row 4 report
Phase transition	1248 K	1248	congruent melting: L -> Ag51Gd14 L: Gd 0.215385; Ag51Gd14: Gd 0.215385	experimental	[2] Wang 2008 cites Kiessler 1972 doi	Table 2, p. 3, row 3 report
Phase transition	1373 K	1373	congruent melting: L -> AgGd L: Gd 0.5; AgGd: Gd 0.5	experimental	[2] Wang 2008 cites Kiessler 1972 doi	Table 2, p. 3, row 9 report
Phase transition	1377 K	1377	congruent melting: L -> AgGd L: Gd 0.5; AgGd: Gd 0.5	model	[2] Wang 2008	Table 2, p. 3, row 10 report

Other property (1)

Other property, Ag–Gd system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Other printed: Bohr magneton	8.6 unspecified	145		experimental	[2] Wang 2008 cites Sekizawa 1966 doi	p. 1 report	AgGd phase was found to be antiferromagnetic at low temperature by Sekizawa and Yasukochi [21]. According to the research, the néel temperature of AgGd is 145 K, and Bohr magneton is 8.6.

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, K. Ishida, Thermodynamic assessments of the Ag–Gd and Ag–Nd systems, Journal of Alloys and Compounds 476, 245-252 (2009). doi:10.1016/j.jallcom.2008.09.129
H. Wang, L.G. Zhang, W.J. Zhu, H.S. Liu, Z.P. Jin, Thermodynamic assessment of the Ag–Gd binary system, Journal of Alloys and Compounds 466, 165-168 (2008). doi:10.1016/j.jallcom.2007.11.049

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}
}