H–La system

8 accepted literature values from 1 paper(s) (experimental 4, model 4); 0 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · phases (6) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	4
model	4

Accepted values by property group
Property group	Values
heat capacity / entropy / enthalpy	8

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Other properties

Heat capacity / entropy / enthalpy (8)

Heat capacity / entropy / enthalpy, H–La system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Entropy printed: Entropy of formation	45 J/mol-atom/K	298.15	LaH2 alloy: La 0.333333	experimental	[1] Palumbo 2009 cites Bieganski 1971	Table 1, p. 2, row 4 report
Entropy printed: Entropy of formation	45 unknown	298.15	LaH2 alloy: La 0.333333	experimental	[1] Palumbo 2009 cites Bieganski 1971	Table 1, p. 2, row 4 report
Entropy printed: Entropy of formation	44.1 unknown	298.15	LaH2 alloy: La 0.333333	model	[1] Palumbo 2009	Table 1, p. 2, row 3 report
Entropy printed: Entropy of formation	44.1 J/mol-atom/K	298.15	LaH2 alloy: La 0.333333	model	[1] Palumbo 2009	Table 1, p. 2, row 3 report
Entropy printed: Entropy of formation	49.3 unknown	298.15	LaH3 alloy: La 0.25	experimental	[1] Palumbo 2009 cites Ito 1983 doi	Table 1, p. 2, row 6 report
Entropy printed: Entropy of formation	49.3 J/mol-atom/K	298.15	LaH3 alloy: La 0.25	experimental	[1] Palumbo 2009 cites Ito 1983 doi	Table 1, p. 2, row 6 report
Entropy printed: Entropy of formation	49.3 unknown	298.15	LaH3 alloy: La 0.25	model	[1] Palumbo 2009	Table 1, p. 2, row 5 report
Entropy printed: Entropy of formation	49.3 J/mol-atom/K	298.15	LaH3 alloy: La 0.25	model	[1] Palumbo 2009	Table 1, p. 2, row 5 report

Sources

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

M. Palumbo, J. Urgnani, D. Baldissin, L. Battezzati, M. Baricco, Thermodynamic assessment of the H–La–Ni system, Calphad 33, 162-169 (2009). doi:10.1016/j.calphad.2008.09.003

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}
}