Bi–Lu system

16 accepted literature values from 1 paper(s) (experimental 5, model 11); 1 calculated phase diagram(s). 4 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 (8) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	5
model	11

Accepted values by property group
Property group	Values
invariant reaction	10
formation	6

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
BiLu-11Wan.tdb	S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Calphad, 35, 421-26(2011). doi:10.1016/j.calphad.2011.05.003	`48bee59b1243e01e303c885166b2aee536a27b332c56cfc5bb3ac613a2cff7ee`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
BiLu-11Wan.tdb	1723.21	BILU_B1 (x(Lu) 0.5) + BI3LU5 (x(Lu) 0.625) + LIQUID (x(Lu) 0.69521)
BiLu-11Wan.tdb	1723.21	BILU_B1 (x(Lu) 0.5) + BI3LU5 (x(Lu) 0.625) + LIQUID (x(Lu) 0.69529)
BiLu-11Wan.tdb	1438.29	BI3LU5 (x(Lu) 0.625) + LIQUID (x(Lu) 0.82364) + HCP_A3 (x(Lu) 0.99027)
BiLu-11Wan.tdb	1438.29	BI3LU5 (x(Lu) 0.625) + LIQUID (x(Lu) 0.82368) + HCP_A3 (x(Lu) 0.99027)
BiLu-11Wan.tdb	542.77	RHOMBOHEDRAL_A7 (x(Lu) 0) + LIQUID (x(Lu) 0.00861) + BILU_B1 (x(Lu) 0.5)
BiLu-11Wan.tdb	480.23	RHOMBOHEDRAL_A7 (x(Lu) 0) + BI2LU (x(Lu) 0.33333) + BILU_B1 (x(Lu) 0.5)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Bi–Lu system (10)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2093.15	congruent melting: L -> BiLu	L: Lu 0.5; BiLu: Lu 0.5	experimental	[1] Wang 2011 cites Abulkhaev 1995	Table 2, p. 3, row 5 report
2092.95	congruent melting: L -> BiLu	L: Lu 0.5; BiLu: Lu 0.5	model	[1] Wang 2011	Table 2, p. 3, row 6 report
1723.15	peritectic: L + BiLu -> Bi3Lu5	BiLu: Lu 0.5; Bi3Lu5: Lu 0.625	experimental	[1] Wang 2011 cites Abulkhaev 1995	Table 2, p. 3, row 7 report
1723.15	peritectic: L + BiLu -> Bi3Lu5	L: Lu 0.695; BiLu: Lu 0.5; Bi3Lu5: Lu 0.625	model	[1] Wang 2011	Table 2, p. 3, row 8 report
1438.25	eutectic: L -> Bi3Lu5 + (Lu)	L: Lu 0.824; Bi3Lu5: Lu 0.625; (Lu): Lu 0.99	model	[1] Wang 2011	Table 2, p. 3, row 10 report
1438.15	eutectic: L -> Bi3Lu5 + (Lu)	L: Lu 0.8; Bi3Lu5: Lu 0.625	experimental	[1] Wang 2011 cites Abulkhaev 1995	Table 2, p. 3, row 9 report
542.75	eutectic: L -> (Bi) + BiLu	L: Lu 0.008; (Bi): Lu 0; BiLu: Lu 0.5	model	[1] Wang 2011	Table 2, p. 3, row 2 report
542.15	eutectic: L -> (Bi) + BiLu	L: Lu 0.003; (Bi): Lu 0; BiLu: Lu 0.5	experimental	[1] Wang 2011 cites Abulkhaev 1995	Table 2, p. 3, row 1 report
483.15	peritectoid: (Bi) + BiLu -> Bi2Lu	(Bi): Lu 0; BiLu: Lu 0.5; Bi2Lu: Lu 0.333	model	[1] Wang 2011	Table 2, p. 3, row 4 report
483.15	peritectoid: (Bi) + BiLu -> Bi2Lu	(Bi): Lu 0; BiLu: Lu 0.5; Bi2Lu: Lu 0.333	experimental	[1] Wang 2011 cites Okamoto 1996 doi	Table 2, p. 3, row 3 report

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, Bi–Lu system (6)
Phase	Compound	Value	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Bi2Lu	Bi2Lu	-56 kJ/mol-atom	model		-38.291 (oqmd-1800948)	[1] Wang 2011 cites Colinet 1984 doi	Table 4, p. 3, row 1 report
Bi2Lu	Bi2Lu	-56 kJ/mol-atom	model		-38.291 (oqmd-1800948)	[1] Wang 2011	Table 4, p. 3, row 2 report
Bi3Lu5	Bi3Lu5	-67 kJ/mol-atom	model	-55.266 (mp-aaacqwvv)		[1] Wang 2011 cites Colinet 1984 doi	Table 4, p. 3, row 5 report
Bi3Lu5	Bi3Lu5	-63.731 kJ/mol-atom	model	-55.266 (mp-aaacqwvv)		[1] Wang 2011	Table 4, p. 3, row 6 report
BiLu	BiLu	-72.696 kJ/mol-atom	model	-69.638 (mp-aaabgiil)	-72.378 (oqmd-10940)	[1] Wang 2011	Table 4, p. 3, row 4 report
BiLu	BiLu	-72 kJ/mol-atom	model	-69.638 (mp-aaabgiil)	-72.378 (oqmd-10940)	[1] Wang 2011 cites Colinet 1984 doi	Table 4, p. 3, row 3 report

Sources

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

S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011). doi:10.1016/j.calphad.2011.05.003

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-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}
}