Bi–La system

21 accepted literature values from 1 paper(s) (experimental 11, model 4, unspecified 6); 2 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (11) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	11
model	4
unspecified	6

Accepted values by property group
Property group	Values
invariant reaction	5
phase transition	1
crystal structure	15

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
BiLa-13Tan-ass.tdb	Y. Tang, B. Hu, J. Wang, Q. Gao, Y. Du, X. Yuan, D. Zivkovic, J. Phase Equilib. Diffus., 34, 297-306(2013). doi:10.1007/s11669-013-0231-4	`4dc0336198f36d7309091292cbfcefd4cac9d5d82cab2a3ea52aca28a0198a52`	viewer · TDB · JSON
BiLa-13Tan.tdb	Y. Tang, B. Hu, J. Wang, Q. Gao, Y. Du, X. Yuan, D. Zivkovic, J. Phase Equilib. Diffus., 34, 297-306(2013). doi:10.1007/s11669-013-0231-4	`45fbc62a11037c40e4607bc62d39384aaa6899aab1b790020d66ec1655bf4b11`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
BiLa-13Tan-ass.tdb	1884.85	LIQUID (x(La) 0.49547) + BILA_B1 (x(La) 0.5) + BI3LA4_D73 (x(La) 0.57143)
BiLa-13Tan-ass.tdb	1620.04	BI3LA4_D73 (x(La) 0.57143) + BI3LA5_D88 (x(La) 0.625) + LIQUID (x(La) 0.71467)
BiLa-13Tan-ass.tdb	1524.01	BI3LA5_D88 (x(La) 0.625) + BILA2 (x(La) 0.66667) + LIQUID (x(La) 0.73866)
BiLa-13Tan-ass.tdb	1209.57	LIQUID (x(La) 0.28886) + BI2LA (x(La) 0.33333) + BILA_B1 (x(La) 0.5)
BiLa-13Tan-ass.tdb	1097.98	BILA2 (x(La) 0.66667) + LIQUID (x(La) 0.91334) + BCC_A2 (x(La) 0.98029)
BiLa-13Tan-ass.tdb	1022.13	BILA2 (x(La) 0.66667) + BCC_A2 (x(La) 0.97813) + FCC_A1 (x(La) 1)
BiLa-13Tan-ass.tdb	550	BILA2 (x(La) 0.66667) + DHCP (x(La) 1) + FCC_A1 (x(La) 1)
BiLa-13Tan-ass.tdb	544.55	RHOMBOHEDRAL_A7 (x(La) 0) + LIQUID (x(La) 0) + BI2LA (x(La) 0.33333)
BiLa-13Tan.tdb	1861.84	LIQUID (x(La) 0.49919) + BILA_B1 (x(La) 0.5) + BI3LA4_D73 (x(La) 0.57143)
BiLa-13Tan.tdb	1861.84	LIQUID (x(La) 0.49943) + BILA_B1 (x(La) 0.5) + BI3LA4_D73 (x(La) 0.57143)
BiLa-13Tan.tdb	1861.84	LIQUID (x(La) 0.49916) + BILA_B1 (x(La) 0.5) + BI3LA4_D73 (x(La) 0.57143)
BiLa-13Tan.tdb	1618.76	BI3LA4_D73 (x(La) 0.57143) + BI3LA5_D88 (x(La) 0.625) + LIQUID (x(La) 0.73103)
BiLa-13Tan.tdb	1618.76	BI3LA4_D73 (x(La) 0.57143) + BI3LA5_D88 (x(La) 0.625) + LIQUID (x(La) 0.73094)
BiLa-13Tan.tdb	1520.88	BI3LA5_D88 (x(La) 0.625) + BILA2 (x(La) 0.66667) + LIQUID (x(La) 0.76427)
BiLa-13Tan.tdb	1520.88	BI3LA5_D88 (x(La) 0.625) + BILA2 (x(La) 0.66667) + LIQUID (x(La) 0.76434)
BiLa-13Tan.tdb	1209.91	LIQUID (x(La) 0.24641) + BI2LA (x(La) 0.33333) + BILA_B1 (x(La) 0.5)
BiLa-13Tan.tdb	1209.91	LIQUID (x(La) 0.24634) + BI2LA (x(La) 0.33333) + BILA_B1 (x(La) 0.5)
BiLa-13Tan.tdb	1209.91	LIQUID (x(La) 0.24662) + BI2LA (x(La) 0.33333) + BILA_B1 (x(La) 0.5)
BiLa-13Tan.tdb	1098.12	BILA2 (x(La) 0.66667) + LIQUID (x(La) 0.91307) + BCC_A2 (x(La) 0.97948)
BiLa-13Tan.tdb	1022.35	BILA2 (x(La) 0.66667) + BCC_A2 (x(La) 0.97818) + FCC_A1 (x(La) 1)
BiLa-13Tan.tdb	550	BILA2 (x(La) 0.66667) + DHCP (x(La) 1) + FCC_A1 (x(La) 1)
BiLa-13Tan.tdb	544.51	RHOMBOHEDRAL_A7 (x(La) 0) + LIQUID (x(La) 2.000e-4) + BI2LA (x(La) 0.33333)
BiLa-13Tan.tdb	544.51	RHOMBOHEDRAL_A7 (x(La) 0) + LIQUID (x(La) 2.000e-4) + BI2LA (x(La) 0.33333)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull BiLa-13Tan-ass

Invariant reactions (literature)

Invariant reactions reported in the literature for the Bi–La system (5)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1023.15	Bcc(La) = La2Bi +Fcc(La)	La2Bi: Bi 0.3333	experimental	[1] Tang 2013 cites Nomura 1977 doi	Table 4, p. 6, row 16 report
1022.55	Bcc(La) = La2Bi +Fcc(La)	Bcc(La): Bi 0.0218; La2Bi: Bi 0.3333; Fcc(La): Bi 0	model	[1] Tang 2013	Table 4, p. 6, row 17 report
1022.45	Bcc(La) = La2Bi +Fcc(La)	Bcc(La): Bi 0.0218; La2Bi: Bi 0.3333; Fcc(La): Bi 0	model	[1] Tang 2013	Table 4, p. 6, row 18 report
544.55	Liquid = LaBi2 + (Bi)	Liquid: Bi 0.9997; LaBi2: Bi 0.6667; (Bi): Bi 1	model	[1] Tang 2013	Table 4, p. 6, row 38 report
544.25	Liquid = LaBi2 + (Bi)	Liquid: Bi 0.9998; LaBi2: Bi 0.6667; (Bi): Bi 1	model	[1] Tang 2013	Table 4, p. 6, row 39 report

Other properties

Phase transition (1)

Phase transition, Bi–La system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1943.15 K	1943.15	congruent transformation	experimental	[1] Tang 2013 cites Nomura 1977 doi	p. 2 report	Except for the La4Bi3 phase, which melts congruently at 1670 C, the other four compounds are formed via peritectic reactions.

Crystal structure (15)

Crystal structure, Bi–La system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	4.712 Å	0	La2Bi alloy: Bi 0.333333, La 0.666667	unspecified	[1] Tang 2013	Table 2, p. 3, row 18 report
Lattice a	4.737 Å		La2Bi alloy: Bi 0.333333, La 0.666667	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 17 report
Lattice a	9.886 Å	0	La4Bi3 alloy: Bi 0.428571, La 0.571429	unspecified	[1] Tang 2013	Table 2, p. 3, row 22 report
Lattice a	9.79 Å		La4Bi3 alloy: Bi 0.428571, La 0.571429	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 21 report
Lattice a	9.659 Å		La5Bi3 alloy: Bi 0.375, La 0.625	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 19 report
Lattice a	9.767 Å	0	La5Bi3 alloy: Bi 0.375, La 0.625	unspecified	[1] Tang 2013	Table 2, p. 3, row 20 report
Lattice a	6.659 Å	0	LaBi alloy: Bi 0.5, La 0.5	unspecified	[1] Tang 2013	Table 2, p. 3, row 24 report
Lattice a	6.658 Å		LaBi alloy: Bi 0.5, La 0.5	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 23 report
Lattice a	4.737 Å		LaBi2 alloy: Bi 0.666667, La 0.333333	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 25 report
Lattice b	17.51 Å		LaBi2 alloy: Bi 0.666667, La 0.333333	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 25 report
Lattice c	18.583 Å	0	La2Bi alloy: Bi 0.333333, La 0.666667	unspecified	[1] Tang 2013	Table 2, p. 3, row 18 report
Lattice c	18.34 Å		La2Bi alloy: Bi 0.333333, La 0.666667	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 17 report
Lattice c	6.697 Å		La5Bi3 alloy: Bi 0.375, La 0.625	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 19 report
Lattice c	6.727 Å	0	La5Bi3 alloy: Bi 0.375, La 0.625	unspecified	[1] Tang 2013	Table 2, p. 3, row 20 report
Lattice c	4.564 Å		LaBi2 alloy: Bi 0.666667, La 0.333333	experimental	[1] Tang 2013 cites Villars 2013	Table 2, p. 3, row 25 report

Sources

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

Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013). doi:10.1007/s11669-013-0231-4

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}
}