Ge–K–Na system

21 accepted literature values from 1 paper(s) (experimental 9, model 9, unspecified 3); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	9
model	9
unspecified	3

Accepted values by property group
Property group	Values
invariant reaction	16
crystal structure	5

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ge–K–Na system (16)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1212.85	L -> Ge4Na + GeNa	L: Ge 0.6038; Ge4Na: Ge 0.8; GeNa: Ge 0.5	model	[1] Wang 2012	Table 3, p. 4, row 5 report
1203.15	L -> (Ge) + Ge4Na	(Ge): Ge 1; Ge4Na: Ge 0.8	experimental	[1] Wang 2012 cites Drits 1982	Table 3, p. 4, row 2 report
1203.15	L -> Ge4Na + GeNa	Ge4Na: Ge 0.8; GeNa: Ge 0.5	experimental	[1] Wang 2012 cites Drits 1982	Table 3, p. 4, row 6 report
1193.05	L -> (Ge) + Ge4K	L: Ge 0.96; (Ge): Ge 1; Ge4K: Ge 0.8	experimental	[1] Wang 2012 cites Drits 1982	Table 3, p. 4, row 16 report
1189.05	L -> (Ge) + Ge4Na	L: Ge 0.9583; (Ge): Ge 1; Ge4Na: Ge 0.8	model	[1] Wang 2012	Table 3, p. 4, row 1 report
1182.65	L -> (Ge) + Ge4K	L: Ge 0.9422; (Ge): Ge 1; Ge4K: Ge 0.8	model	[1] Wang 2012	Table 3, p. 4, row 15 report
1041.35	L -> GeNa + GeNa3	L: Ge 0.3366; GeNa: Ge 0.5; GeNa3: Ge 0.25	model	[1] Wang 2012	Table 3, p. 4, row 9 report
1038.15	L -> GeNa + GeNa3	L: Ge 0.35; GeNa: Ge 0.5; GeNa3: Ge 0.25	experimental	[1] Wang 2012 cites Drits 1982	Table 3, p. 4, row 10 report
1019.05	L -> Ge4K + GeK	L: Ge 0.5966; Ge4K: Ge 0.8; GeK: Ge 0.5	model	[1] Wang 2012	Table 3, p. 4, row 19 report
1013.05	L -> Ge4K + GeK	L: Ge 0.62; Ge4K: Ge 0.8; GeK: Ge 0.5	experimental	[1] Wang 2012 cites Drits 1982	Table 3, p. 4, row 20 report
848.05	L -> GeK + GeK3	L: Ge 0.37; GeK: Ge 0.5; GeK3: Ge 0.25	experimental	[1] Wang 2012 cites Drits 1982	Table 3, p. 4, row 24 report
846.95	L -> GeK + GeK3	L: Ge 0.3805; GeK: Ge 0.5; GeK3: Ge 0.25	model	[1] Wang 2012	Table 3, p. 4, row 23 report
370.95	L -> GeNa3 + (Na)	GeNa3: Ge 0.25	experimental	[1] Wang 2012 cites Drits 1982	Table 3, p. 4, row 14 report
370.85	L -> GeNa3 + (Na)	L: Ge 1.000e-4; GeNa3: Ge 0.25; (Na): Ge 0	model	[1] Wang 2012	Table 3, p. 4, row 13 report
337.05	L -> GeK3 + (K)	GeK3: Ge 0.25	experimental	[1] Wang 2012 cites Drits 1982	Table 3, p. 4, row 28 report
333.75	L -> GeK3 + (K)	L: Ge 0.0063; GeK3: Ge 0.25; (K): Ge 0	model	[1] Wang 2012	Table 3, p. 4, row 27 report

Other properties

Crystal structure (5)

Crystal structure, Ge–K–Na system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	5.78 Å		(Ge) alloy: K 0, Na 0	unspecified	[1] Wang 2012	Table 1, p. 3, row 2 report
Lattice a	5.66 Å	298.15	(Ge) alloy: K 0, Na 0	model	[1] Wang 2012 cites King 1981 doi	Table 1, p. 3, row 1 report
Lattice a	15.4 Å	298.15	Ge136Nax ~0 ≤ x ≤ 24	experimental	[1] Wang 2012 cites Cros 1970 doi	Table 1, p. 3, row 3 report
Lattice a	150.54 Å	298.15	Ge3+zNa1−x (Ge3Na1−x)	unspecified	[1] Wang 2012 cites Beekman 2005 doi	Table 1, p. 3, row 4 report
Lattice c	39.6845 Å	298.15	Ge3+zNa1−x (Ge3Na1−x)	unspecified	[1] Wang 2012 cites Beekman 2005 doi	Table 1, p. 3, row 4 report

Sources

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

Yaru Wang, Peisheng Wang, Dongdong Zhao, Biao Hu, Yong Du, Honghui Xu et al., Thermodynamic description of the Ge–Na and Ge–K systems using the CALPHAD approach supported by first-principles calculations, Calphad 37, 72-76 (2012). doi:10.1016/j.calphad.2012.01.004

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 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_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}
}