Cr–La system

16 accepted literature values from 2 paper(s) (experimental 7, model 9); 2 calculated phase diagram(s). 18 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 (5) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	7
model	9

Accepted values by property group
Property group	Values
invariant reaction	11
phase transition	4
other property	1

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
CrLa-09Cha.tdb	W. Chan, C. Gao, O.N. Dogan, P. King, A.D. Rollett, J. Phase Equilib. Diffus., 30, 578-86(2009). doi:10.1007/s11669-009-9581-3	`7eae47ddc2ae31cacba91eb581a06d8c4a493fafda31e53de4e901b25a137d70`	viewer · TDB · JSON
CrLa-09Pov.tdb	E. Povoden, M. Chen, A.N. Grundy, T. Ivas, L.J. Gauckler, J. Phase Equilib. Diffus., 30, 12-27(2009). doi:10.1007/s11669-008-9463-0	`af1685101b0145ad083258c09bda4e082c1a4e1a0e44f11a98444c43ca655fba`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
CrLa-09Cha.tdb	2101.7	BCC_A2 (x(La) 0.02155) + LIQUID#2 (x(La) 0.07873) + LIQUID (x(La) 0.73847)
CrLa-09Cha.tdb	1142.91	LIQUID (x(La) 0.97333) + FCC_A1 (x(La) 0.9963) + BCC_A2 (x(La) 0.99909)
CrLa-09Cha.tdb	1138.03	BCC_A2 (x(La) 0.00108) + LIQUID (x(La) 0.96903) + FCC_A1 (x(La) 0.99553)
CrLa-09Cha.tdb	549.93	BCC_A2 (x(La) 0) + FCC_A1 (x(La) 0.99999) + DHCP (x(La) 1)
CrLa-09Pov.tdb	2142.42	BCC_A2 (x(La) 0.00263) + LIQUID#2 (x(La) 0.02661) + LIQUID (x(La) 0.83326)
CrLa-09Pov.tdb	1133.96	LIQUID (x(La) 0.97187) + BCC_A2 (x(La) 0.99998) + FCC_A1 (x(La) 0.99999)
CrLa-09Pov.tdb	1126.03	BCC_A2 (x(La) 2.000e-5) + LIQUID (x(La) 0.96675) + FCC_A1 (x(La) 0.99999)
CrLa-09Pov.tdb	1126.03	BCC_A2 (x(La) 2.000e-5) + LIQUID (x(La) 0.96675) + FCC_A1 (x(La) 0.99999)
CrLa-09Pov.tdb	550	BCC_A2 (x(La) 0) + FCC_A1 (x(La) 1) + DHCP (x(La) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CrLa-09Pov

Invariant reactions (literature)

Invariant reactions reported in the literature for the Cr–La system (11)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2108.25	monotectic: L1 -> L2 + Cr	L1: La 0.024; L2: La 0.976	model	[1] Chan 2009 cites Ray 2009	Table 3, p. 7, row 3 report
2103.15	monotectic: L1 -> L2 + Cr	L1: La 0.009; L2: La 0.82; Cr: La 0	experimental	[1] Chan 2009 cites Massalski 1990	Table 3, p. 7, row 2 report
2102.15	monotectic: L1 -> L2 + Cr	L1: La 0.0787; L2: La 0.739; Cr: La 0.0215	model	[1] Chan 2009	Table 3, p. 7, row 4 report
1983.15	monotectic: L1 -> L2 + Cr	L1: La 0.0399; Cr: La 0.0246	experimental	[1] Chan 2009 cites Savitskii 1960	Table 3, p. 7, row 1 report
1190.45	eutectic: L2 -> Cr + βLa	L2: La 0.9997	model	[1] Chan 2009 cites Ray 2009	Table 3, p. 7, row 9 report
1143.15	L2 + γLa -> βLa	L2: La 0.973; γLa: La 0.999; βLa: La 0.996	model	[1] Chan 2009	Table 3, p. 7, row 5 report
1140.75	eutectic: L2 -> Cr + βLa	L2: La 0.97026	model	[1] Chan 2009 cites Terekhova 1990	Table 3, p. 7, row 8 report
1138.15	eutectic: L2 -> Cr + βLa		experimental	[1] Chan 2009 cites Savitskii 1960	Table 3, p. 7, row 6 report
1138.15	eutectic: L2 -> Cr + βLa	L2: La 0.966; Cr: La 0; βLa: La 1	experimental	[1] Chan 2009 cites Massalski 1990	Table 3, p. 7, row 7 report
1138.15	eutectic: L2 -> Cr + βLa	L2: La 0.969; Cr: La 0.0011; βLa: La 0.996	model	[1] Chan 2009	Table 3, p. 7, row 10 report
550.15	βLa -> Cr + αLa	βLa: La 1; Cr: La 0; αLa: La 1	model	[1] Chan 2009	Table 3, p. 7, row 11 report

Other properties

Phase transition (4)

Phase transition, Cr–La system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	540 K	540	o-prv -> r-prv	model	[2] Povoden 2009	p. 11 report	The calculated transition temperature of 540 K is shown by the broken line in Fig. 6.
Phase transition	545 K	545	o-prv -> r-prv	experimental	[2] Povoden 2009	p. 11 report	The experimentally determined Cp-peak around 545 K caused by the first-order transition o-prv M r-prv is in fact a discontinuity which cannot be implemented in the model.
Phase transition	2130 K	2130	Cr + liquid	experimental	[2] Povoden 2009 cites Savitskii 1960	p. 8 report	Considerable deviations of the calculated liquidus from experiments at the Cr-rich side of the system can be ascribed to the problem of two different melting temperatures for Cr cited in the literature, which are 2180 and 2130 K. The higher value was favored by Dinsdale[10] and is adopted in this study, whereas the lower melting temperature was chosen by Savitskii et al.[12] and Svechnikov et al.…
Phase transition	2180 K	2180	Cr + liquid	model	[2] Povoden 2009 cites Dinsdale 1991 doi	p. 8 report	Considerable deviations of the calculated liquidus from experiments at the Cr-rich side of the system can be ascribed to the problem of two different melting temperatures for Cr cited in the literature, which are 2180 and 2130 K. The higher value was favored by Dinsdale[10] and is adopted in this study, whereas the lower melting temperature was chosen by Savitskii et al.[12] and Svechnikov et al.…

Other property (1)

Other property, Cr–La system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Other printed: enthalpy change	231 unspecified	960		experimental	[2] Povoden 2009 cites Yu 2005	p. 2 report	An enthalpy change of 231 kJ mol-1 was determined for this reaction at the average temperature of 960 K.[30]

Sources

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

Wren Chan, Michael C. Gao, Ömer N. Doğan, Paul King, Anthony D. Rollett, Thermodynamic Assessment of Cr-Rare Earth Systems, J. Phase Equilib. Diffus. 30, 578-586 (2009). doi:10.1007/s11669-009-9581-3
E. Povoden, M. Chen, A.N. Grundy, T. Ivas, L.J. Gauckler, Thermodynamic Assessment of the La-Cr-O System, J. Phase Equilib. Diffus. 30, 12-27 (2009). doi:10.1007/s11669-008-9463-0

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}
}