Fe–La–O system

24 accepted literature values from 1 paper(s) (experimental 15, model 9); 0 calculated phase diagram(s).

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

Accepted values by evidence class
Evidence class	Values
experimental	15
model	9

Accepted values by property group
Property group	Values
formation	10
heat capacity / entropy / enthalpy	5
activity / EMF / Gibbs energy	9

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, Fe–La–O system (4)
Phase	Value	T (K)	Class	Source	Location
LaFeO3	-1373.48 kJ/mol (basis unstated) ± 2.61	298.15	experimental	[1] Povoden-Karadeniz 2009 cites Cheng 2005 doi	Table 1, p. 4, row 2 report
LaFeO3	-274.696 kJ/mol-atom ± 0.522	298.15	experimental	[1] Povoden-Karadeniz 2009 cites Cheng 2005 doi	Table 1, p. 4, row 2 report
LaFeO3	-273.64 kJ/mol-atom	298.15	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 1 report
LaFeO3	-266.94 kJ/mol-atom	298.15	experimental	[1] Povoden-Karadeniz 2009 cites Parida 1998 doi	Table 1, p. 4, row 3 report

Other properties

Formation (6)

Formation, Fe–La–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location
hm from compounds printed: Δf,oxides °H	-12.15 kJ/mol-atom	298.15	LaFeO3 alloy: La 0.2, O 0.6	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 4 report
hm from compounds printed: Δf,oxides °H	-12.47 kJ/mol-atom	975	LaFeO3 alloy: La 0.2, O 0.6	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 5 report
hm from compounds printed: Δf,oxides °H^LaFeO3_975 K	-12.916 kJ/mol-atom ± 0.78	975	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Cheng 2005 doi	Table 1, p. 4, row 6 report
hm from compounds printed: Δf,oxides °H	-64.58 kJ/mol (basis unstated) ± 3.9	975	LaFeO3	experimental	[1] Povoden-Karadeniz 2009 cites Cheng 2005 doi	Table 1, p. 4, row 6 report
hm from compounds printed: Δf,oxides °H^LaFeO3_975 K	-12.92 kJ/mol-atom ± 0.78	975	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Cheng 2005 doi	Table 1, p. 4, row 7 report
hm from compounds printed: Δf,oxides °H	-64.6 kJ/mol (basis unstated) ± 3.9	975	LaFeO3	experimental	[1] Povoden-Karadeniz 2009 cites Cheng 2005 doi	Table 1, p. 4, row 7 report

Heat capacity / entropy / enthalpy (5)

Heat capacity / entropy / enthalpy, Fe–La–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Entropy printed: °S	25.78 J/mol-atom/K	298.15	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Parida 1998 doi	Table 1, p. 4, row 10 report
Entropy printed: °S	21.4 J/mol-atom/K	298.15	LaFeO3 alloy: La 0.2, O 0.6	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 8 report
Entropy printed: °S	22.12 J/mol-atom/K	298.15	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Stlen 1998 doi	Table 1, p. 4, row 9 report
Entropy printed: °S	49.8 J/mol-atom/K	900	LaFeO3 alloy: La 0.2, O 0.6	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 11 report
Entropy printed: °S	50.518 J/mol-atom/K	900	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Stlen 1998 doi	Table 1, p. 4, row 12 report

Activity / EMF / Gibbs energy (9)

Activity / EMF / Gibbs energy, Fe–La–O system
Property	Value	Phases / composition	Class	Source	Location
Gibbs energy printed: Δ°G	-281993 J/mol	LaFeO3 alloy: La 0.2, O 0.6	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 15 report
Gibbs energy printed: Δ°G	-60267 J/mol	LaFeO3 alloy: La 0.2, O 0.6	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 28 report
Gibbs energy printed: Δ°G	-309700 J/mol	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Nakamura 1979 doi	Table 1, p. 4, row 14 report
Gibbs energy printed: Δ°G	-287841 J/mol ± 1255	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Kimizuka 1974	Table 1, p. 4, row 16 report
Gibbs energy printed: Δ°G	-307364 J/mol	LaFeO3 alloy: La 0.2, O 0.6	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 13 report
Gibbs energy printed: Δ°G	-66066 J/mol	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Kimizuka 1974	Table 1, p. 4, row 29 report
Gibbs energy printed: Δ°G	-60625 J/mol	LaFeO3 alloy: La 0.2, O 0.6	model	[1] Povoden-Karadeniz 2009	Table 1, p. 4, row 26 report
Gibbs energy printed: Δ°G	-62835 J/mol	LaFeO3 alloy: La 0.2, O 0.6	experimental	[1] Povoden-Karadeniz 2009 cites Nakamura 1979 doi	Table 1, p. 4, row 27 report
Gibbs energy printed: Δ°G	-287841 unknown ± 1255	UNKNOWN	experimental	[1] Povoden-Karadeniz 2009 cites Kimizuka 1974	Table 1, p. 4, row 16 report

Sources

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

E. Povoden-Karadeniz, A. N. Grundy, M. Chen, T. Ivas, L. J. Gauckler, Thermodynamic Assessment of the La-Fe-O System, J. Phase Equilib. Diffus. 30, 351-366 (2009). doi:10.1007/s11669-009-9501-6

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}
}