Gd–Mo system

16 accepted literature values from 2 paper(s) (experimental 9, model 6, unspecified 1); 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 (4) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	9
model	6
unspecified	1

Accepted values by property group
Property group	Values
invariant reaction	11
phase equilibrium	5

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
GdMo-01Zin-LB.tdb	M. Zinkevich, N. Mattern, H.J. Seifert, J. Phase Equilib, 22, 43-50(2001). doi:10.1361/105497101770339283	`4b52fdb3b73f0b2a83faa8b952f9280bbdfecafa6119b86e3ea9167aebaa26bf`	viewer · TDB · JSON
GdMo-02Zin.tdb	M. Zinkevich, N. Mattern, H.-J. Seifert, E. Gmelin, Scand. J. Metall., 31, 34-51(2002). doi:10.1034/j.1600-0692.2002.311310106.x	`f92d0b1a1c5e7b57c05e2112491316f9a1defaebd7921a57c5557293ae3d1015`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
GdMo-01Zin-LB.tdb	2745.15	LIQUID (x(Mo) 0.32477) + LIQUID#2 (x(Mo) 0.85296) + BCC_A2 (x(Mo) 0.99498)
GdMo-01Zin-LB.tdb	1571.83	BCC_A2#2 (x(Mo) 0.00482) + LIQUID (x(Mo) 0.01161) + BCC_A2 (x(Mo) 0.99978)
GdMo-01Zin-LB.tdb	1489.35	HCP_A3 (x(Mo) 0) + BCC_A2#2 (x(Mo) 0.00357) + BCC_A2 (x(Mo) 0.99986)
GdMo-02Zin.tdb	2745.15	LIQUID (x(Mo) 0.32477) + LIQUID#2 (x(Mo) 0.85296) + BCC_A2 (x(Mo) 0.99498)
GdMo-02Zin.tdb	1571.83	BCC_A2#2 (x(Mo) 0.00482) + LIQUID (x(Mo) 0.01161) + BCC_A2 (x(Mo) 0.99978)
GdMo-02Zin.tdb	1507.35	HCP_A3 (x(Mo) 0.00372) + BCC_A2 (x(Mo) 0.00382) + BCC_A2#2 (x(Mo) 0.99985)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull GdMo-01Zin-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the Gd–Mo system (11)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2745	monotectic: Liquid I -> Liquid II + bcc-Mo	Liquid I: Mo 0.853; Liquid II: Mo 0.325; bcc-Mo: Mo 0.995	model	[1] Zinkevich 2001	Table 5, p. 7, row 2 report
2745	monotectic: liquid I -> liquid II + (Mo)	liquid I: Mo 0.853; liquid II: Mo 0.325; (Mo): Mo 0.995	model	[2] Zinkevich 2002 cites Zinkevich 1999	Table 4, p. 5, row 2 report
2743	monotectic: liquid I -> liquid II + (Mo)	liquid I: Mo 0.9; (Mo): Mo 0.9906	experimental	[2] Zinkevich 2002 cites Brewer 1980	Table 4, p. 5, row 1 report
2737	monotectic: Liquid I -> Liquid II + bcc-Mo	Liquid I: Mo 0.9; bcc-Mo: Mo 0.9906	experimental	[1] Zinkevich 2001 cites Chuang 1966	Table 5, p. 7, row 1 report
1573	eutectic: liquid II -> (Mo) + bccGd	liquid II: Mo 0.0117; (Mo): Mo 0.99978; bccGd: Mo 0.0048	model	[2] Zinkevich 2002 cites Zinkevich 1999	Table 4, p. 5, row 4 report
1573	eutectic: liquid II -> (Mo) + bccGd	liquid II: Mo 0.03; (Mo): Mo 0.999; bccGd: Mo 0.001	experimental	[2] Zinkevich 2002 cites Brewer 1980	Table 4, p. 5, row 3 report
1572	eutectic: Liquid II -> bcc-Mo + bcc-Gd	Liquid II: Mo 0.0116; bcc-Mo: Mo 0.99978; bcc-Gd: Mo 0.0048	model	[1] Zinkevich 2001	Table 5, p. 7, row 4 report
1572	eutectic: Liquid II -> bcc-Mo + bcc-Gd	Liquid II: Mo 0.03	unspecified	[1] Zinkevich 2001 cites Chuang 1966	Table 5, p. 7, row 3 report
1534	peritectoid: bccGd + (Mo) -> hcpGd	bccGd: Mo 0.0042; (Mo): Mo 0.99982; hcpGd: Mo 0.0041	model	[2] Zinkevich 2002 cites Zinkevich 1999	Table 4, p. 5, row 6 report
1530	peritectoid: bccGd + (Mo) -> hcpGd		experimental	[2] Zinkevich 2002 cites Brewer 1980	Table 4, p. 5, row 5 report
1489	eutectoid: bcc-Gd + bcc-Mo -> hcp-Gd	bcc-Gd: Mo 0.0036; bcc-Mo: Mo 0.99986; hcp-Gd: Mo 0	model	[1] Zinkevich 2001	Table 5, p. 7, row 5 report

Other properties

Phase equilibrium (5)

Phase equilibrium, Gd–Mo system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	1572	Liquid II Liquid II: Gd 0.97, Mo 0.03	experimental	[1] Zinkevich 2001 cites Chuang 1966	Table 2, p. 3, row 2 report
Phase composition	1873	bcc-Mo bcc-Mo: Gd 9.000e-4, Mo 0.9991	experimental	[1] Zinkevich 2001 cites Chuang 1966	Table 2, p. 3, row 3 report
Phase composition	2737	Liquid I + bcc-Mo Liquid I: Gd 0.1, Mo 0.9; bcc-Mo: Gd 0.0094, Mo 0.9906	experimental	[1] Zinkevich 2001 cites Chuang 1966	Table 2, p. 3, row 1 report
Phase composition	2783	bcc-Mo bcc-Mo: Gd 0.0094, Mo 0.9906	experimental	[1] Zinkevich 2001 cites Chuang 1966	Table 2, p. 3, row 4 report
Phase composition	2843	bcc-Mo bcc-Mo: Gd 5.000e-4, Mo 0.9995	experimental	[1] Zinkevich 2001 cites Chuang 1966	Table 2, p. 3, row 5 report

Sources

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

M. Zinkevich, N. Mattern, H. J. Seifer, Thermodynamic assessment of Gd-Zr and Gd-Mo systems, JPE 22, 43-50 (2001). doi:10.1361/105497101770339283
Matvei Zinkevich, Norbert Mattern, Hans‐Jürgen Seifert, Eberhard Gmelin, A thermodynamic assessment of the Fe‐Gd‐Mo system, Scand Jof Metallurgy 31, 34-51 (2002). doi:10.1034/j.1600-0692.2002.311310106.x

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}
}