Eu–Pb system

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

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (9) · papers (bibliography) · Markdown

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

Accepted values by property group
Property group	Values
invariant reaction	12
phase transition	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
EuPb-13Wan.tdb	D. Wang, Y. Yu, X.J. Liu, C.P. Wang, Calphad, 41, 20-25(2013). doi:10.1016/j.calphad.2013.01.007	`f6d7b9cda66ca056479d79ae04d74b04e68aa0493e79d1fae3a2bcd97fdaf1a4`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
EuPb-13Wan.tdb	1412.55	EU2PB_C37 (x(Pb) 0.33292) + EU5PB3_D8M (x(Pb) 0.375) + LIQUID (x(Pb) 0.41489)
EuPb-13Wan.tdb	1412.55	EU2PB_C37 (x(Pb) 0.33292) + EU5PB3_D8M (x(Pb) 0.375) + LIQUID (x(Pb) 0.41495)
EuPb-13Wan.tdb	1320.82	EU5PB3_D8M (x(Pb) 0.375) + LIQUID (x(Pb) 0.45869) + EUPB_HT (x(Pb) 0.48768)
EuPb-13Wan.tdb	1147.17	EUPB_HT (x(Pb) 0.4997) + EUPB_L10 (x(Pb) 0.4998) + LIQUID (x(Pb) 0.59122)
EuPb-13Wan.tdb	1135.84	EU5PB3_D8M (x(Pb) 0.375) + EUPB_HT (x(Pb) 0.49108) + EUPB_L10 (x(Pb) 0.49394)
EuPb-13Wan.tdb	1049.29	BCC_A2 (x(Pb) 4.000e-5) + LIQUID (x(Pb) 0.06032) + EU2PB_C37 (x(Pb) 0.31718)
EuPb-13Wan.tdb	989.08	EUPB_L10 (x(Pb) 0.49999) + LIQUID (x(Pb) 0.63393) + EUPB3_L12 (x(Pb) 0.75)
EuPb-13Wan.tdb	598.93	EUPB3_L12 (x(Pb) 0.75) + LIQUID (x(Pb) 0.99741) + FCC_A1 (x(Pb) 1)
EuPb-13Wan.tdb	598.92	EUPB3_L12 (x(Pb) 0.75) + LIQUID (x(Pb) 0.99745) + FCC_A1 (x(Pb) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Eu–Pb system (12)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1418.15	Eu2Pb + L ↔ Eu5Pb3	Eu2Pb: Pb 0.333; Eu5Pb3: Pb 0.375	experimental	[1] Wang 2013 cites O 1967	Table 5, p. 3, row 5 report
1412.35	Eu2Pb + L ↔ Eu5Pb3	Eu2Pb: Pb 0.333; L: Pb 0.415; Eu5Pb3: Pb 0.375	model	[1] Wang 2013	Table 5, p. 3, row 6 report
1320.85	L ↔ Eu5Pb3 + βEuPb	L: Pb 0.459; Eu5Pb3: Pb 0.375; βEuPb: Pb 0.5	model	[1] Wang 2013	Table 5, p. 3, row 8 report
1304.15	L ↔ Eu5Pb3 + βEuPb	L: Pb 0.445; Eu5Pb3: Pb 0.375; βEuPb: Pb 0.5	experimental	[1] Wang 2013 cites O 1967	Table 5, p. 3, row 7 report
1147.15	βEuPb + L ↔ αEuPb	βEuPb: Pb 0.5; L: Pb 0.591; αEuPb: Pb 0.5	model	[1] Wang 2013	Table 5, p. 3, row 14 report
1143.15	βEuPb + L ↔ αEuPb	βEuPb: Pb 0.5; αEuPb: Pb 0.5	experimental	[1] Wang 2013 cites O 1967	Table 5, p. 3, row 13 report
1135.85	βEuPb ↔ Eu5Pb3 + αEuPb	βEuPb: Pb 0.491; Eu5Pb3: Pb 0.375; αEuPb: Pb 0.494	model	[1] Wang 2013	Table 5, p. 3, row 10 report
1130.15	βEuPb ↔ Eu5Pb3 + αEuPb	βEuPb: Pb 0.5; Eu5Pb3: Pb 0.375; αEuPb: Pb 0.5	experimental	[1] Wang 2013 cites O 1967	Table 5, p. 3, row 9 report
1049.15	L ↔ (Eu) + Eu2Pb	L: Pb 0.0602; (Eu): Pb 0; Eu2Pb: Pb 0.317	model	[1] Wang 2013	Table 5, p. 3, row 2 report
1043.15	L ↔ (Eu) + Eu2Pb	L: Pb 0.055; (Eu): Pb 0; Eu2Pb: Pb 0.33	experimental	[1] Wang 2013 cites O 1967	Table 5, p. 3, row 1 report
990.15	L ↔ αEuPb + EuPb3	L: Pb 0.635; αEuPb: Pb 0.5; EuPb3: Pb 0.75	experimental	[1] Wang 2013 cites O 1967	Table 5, p. 3, row 15 report
989.05	L ↔ αEuPb + EuPb3	L: Pb 0.634; αEuPb: Pb 0.5; EuPb3: Pb 0.75	model	[1] Wang 2013	Table 5, p. 3, row 16 report

Other properties

Phase transition (6)

Phase transition, Eu–Pb system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1061.15 K	1061.15	L ↔ EuPb3 L: Pb 0.75; EuPb3: Pb 0.75	experimental	[1] Wang 2013 cites O 1967	Table 5, p. 3, row 17 report
Phase transition	1065.65 K	1065.65	L ↔ EuPb3 L: Pb 0.75; EuPb3: Pb 0.75	model	[1] Wang 2013	Table 5, p. 3, row 18 report
Phase transition	1343.15 K	1343.15	L ↔ βEuPb L: Pb 0.5; βEuPb: Pb 0.5	model	[1] Wang 2013	Table 5, p. 3, row 12 report
Phase transition	1353.15 K	1353.15	L ↔ βEuPb L: Pb 0.5; βEuPb: Pb 0.5	experimental	[1] Wang 2013 cites O 1967	Table 5, p. 3, row 11 report
Phase transition	1520.75 K	1520.75	L ↔ Eu2Pb L: Pb 0.333; Eu2Pb: Pb 0.333	model	[1] Wang 2013	Table 5, p. 3, row 4 report
Phase transition	1523.15 K	1523.15	L ↔ Eu2Pb L: Pb 0.333; Eu2Pb: Pb 0.333	experimental	[1] Wang 2013 cites O 1967	Table 5, 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).

D. Wang, Y. Yu, X.J. Liu, C.P. Wang, Thermodynamic assessment of the Eu–Pb and Lu–Pb systems, Calphad 41, 20-25 (2013). doi:10.1016/j.calphad.2013.01.007

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}
}