La–Ru system

11 accepted literature values from 1 paper(s) (experimental 2, model 9); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	2
model	9

Accepted values by property group
Property group	Values
formation	11

Convex hulls: Materials Project DFT hull · OQMD DFT hull

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, La–Ru system (5)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
La3Ru	La3Ru	-15.002 kJ/mol-atom		model	-22.718 (mp-aaacprto)	-22.581 (oqmd-689955)	[1] Kardellass 2023 cites Selhaoui 1999 doi	Table 2, p. 7, row 1 report
La7Ru3	La7Ru3	-16.519 kJ/mol-atom		model	-27.093 (mp-aaacqkvm)	-25.251 (oqmd-1821162)	[1] Kardellass 2023 cites Selhaoui 1993 doi	Table 2, p. 7, row 23 report
LaRu2	LaRu2	-13.801 kJ/mol-atom		model	-12.73 (mp-aaaaaczr)	-13.105 (oqmd-1367517)	[1] Kardellass 2023 cites Selhaoui 1999 doi	Table 2, p. 7, row 30 report
LaRu2	LaRu2	-11 kJ/mol-atom	298.15	experimental	-12.73 (mp-aaaaaczr)	-13.105 (oqmd-1367517)	[1] Kardellass 2023 cites Shilov 1983	Table 2, p. 7, row 32 report
LaRu2	LaRu2	-10.3 kJ/mol-atom ± 2.8	298.15	experimental	-12.73 (mp-aaaaaczr)	-13.105 (oqmd-1367517)	[1] Kardellass 2023 cites Selhaoui 1993 doi	Table 2, p. 7, row 31 report

Other properties

Formation (6)

Formation, La–Ru system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Entropy of formation printed: ΔSf	-8.26 J/mol-atom/K		La3Ru alloy: La 0.75, Ru 0.25	model	[1] Kardellass 2023 cites Selhaoui 1999 doi	Table 2, p. 7, row 1 report
Entropy of formation printed: ΔSf	-8.62 J/mol-atom/K		La7Ru3 alloy: La 0.7, Ru 0.3	model	[1] Kardellass 2023 cites Selhaoui 1993 doi	Table 2, p. 7, row 23 report
Entropy of formation printed: ΔSf	-5.88 J/mol-atom/K		LaRu2 alloy: La 0.333333, Ru 0.666667	model	[1] Kardellass 2023 cites Selhaoui 1999 doi	Table 2, p. 7, row 30 report
Gibbs energy of formation printed: ΔGf	-6.742 kJ/mol-atom		La3Ru alloy: La 0.75, Ru 0.25	model	[1] Kardellass 2023 cites Selhaoui 1999 doi	Table 2, p. 7, row 1 report
Gibbs energy of formation printed: ΔGf	-7.921 kJ/mol-atom		LaRu2 alloy: La 0.333333, Ru 0.666667	model	[1] Kardellass 2023 cites Selhaoui 1999 doi	Table 2, p. 7, row 30 report
Gibbs energy of formation printed: ΔGf at 1000 K	-7.899 kJ/mol-atom	1000	La7Ru3 alloy: La 0.7, Ru 0.3	model	[1] Kardellass 2023 cites Selhaoui 1993 doi	Table 2, p. 7, row 23 report

Sources

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

S. Kardellass, V. P. Vassiliev, K. Mahdouk, N. Laaroussi, N. Selhaoui, Excess Thermodynamic Properties of Solutions in Ln-Ru (Ln = Nd, Gd, Dy) Binary Systems Based on Quadratic, Exponential and Combined Models Supported by Ab-Initio Calculations, J. Phase Equilib. Diffus. 44, 43-75 (2023). doi:10.1007/s11669-022-01023-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-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); 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); 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. 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_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}
}