Lu–Pb system

30 accepted literature values from 2 paper(s) (experimental 15, model 15); 2 calculated phase diagram(s). 6 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 (10) · papers (bibliography) · Markdown

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

Accepted values by property group
Property group	Values
invariant reaction	24
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
LuPb-12Idd.tdb	A. Iddaoudi, N. Selhaoui, M. Ait Amar, K. Mahdouk, A. Aharoune, L. Bouirden, J. Therm. Anal. Calorim., 110, 923-28(2012). doi:10.1007/s10973-011-1881-2	`33e63b676c5f908faf15ab63bebb2efbd4d38d0da37aca9a216d6d860c0042a1`	viewer · TDB · JSON
LuPb-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	`602dc6f7866693ae8a7180683ec8ba7959a7f3bee36c1e68091a5ba41244c165`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
LuPb-12Idd.tdb	1772.74	LU5PB3_D88 (x(Pb) 0.375) + LU5PB4_HT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.5448)
LuPb-12Idd.tdb	1772.74	LU5PB3_D88 (x(Pb) 0.375) + LU5PB4_HT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.54471)
LuPb-12Idd.tdb	1772.74	LU5PB3_D88 (x(Pb) 0.375) + LU5PB4_HT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.54466)
LuPb-12Idd.tdb	1749.54	LU5PB3_D88 (x(Pb) 0.375) + LU5PB4_LT (x(Pb) 0.44444) + LU5PB4_HT (x(Pb) 0.44444)
LuPb-12Idd.tdb	1749.54	LU5PB4_LT (x(Pb) 0.44444) + LU5PB4_HT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.56351)
LuPb-12Idd.tdb	1749.54	LU5PB4_HT (x(Pb) 0.44444) + LU5PB4_LT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.56359)
LuPb-12Idd.tdb	1557.93	HCP_A3 (x(Pb) 0.01182) + LIQUID (x(Pb) 0.13438) + LU5PB3_D88 (x(Pb) 0.375)
LuPb-12Idd.tdb	1557.93	HCP_A3 (x(Pb) 0.0118) + LIQUID (x(Pb) 0.13432) + LU5PB3_D88 (x(Pb) 0.375)
LuPb-12Idd.tdb	1445.91	LU5PB4_LT (x(Pb) 0.44444) + LU6PB5 (x(Pb) 0.45455) + LIQUID (x(Pb) 0.71701)
LuPb-12Idd.tdb	1445.91	LU5PB4_LT (x(Pb) 0.44444) + LU6PB5 (x(Pb) 0.45455) + LIQUID (x(Pb) 0.71698)
LuPb-12Idd.tdb	1445.91	LU5PB4_LT (x(Pb) 0.44444) + LU6PB5 (x(Pb) 0.45455) + LIQUID (x(Pb) 0.71702)
LuPb-12Idd.tdb	842.98	LU6PB5 (x(Pb) 0.45455) + LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.91811)
LuPb-12Idd.tdb	842.98	LU6PB5 (x(Pb) 0.45455) + LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.918)
LuPb-12Idd.tdb	842.98	LU6PB5 (x(Pb) 0.45455) + LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.91813)
LuPb-12Idd.tdb	595.97	LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.99319) + FCC_A1 (x(Pb) 1)
LuPb-12Idd.tdb	595.97	LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.9933) + FCC_A1 (x(Pb) 1)
LuPb-12Idd.tdb	595.96	LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.99327) + FCC_A1 (x(Pb) 1)
LuPb-13Wan.tdb	1772.79	LU5PB3_D88 (x(Pb) 0.375) + LU5PB4_HT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.50726)
LuPb-13Wan.tdb	1772.79	LU5PB3_D88 (x(Pb) 0.375) + LU5PB4_HT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.5072)
LuPb-13Wan.tdb	1747.98	LU5PB3_D88 (x(Pb) 0.375) + LU5PB4_LT (x(Pb) 0.44444) + LU5PB4_HT (x(Pb) 0.44444)
LuPb-13Wan.tdb	1747.98	LU5PB4_LT (x(Pb) 0.44444) + LU5PB4_HT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.52315)
LuPb-13Wan.tdb	1747.98	LU5PB4_HT (x(Pb) 0.44444) + LU5PB4_LT (x(Pb) 0.44444) + LIQUID (x(Pb) 0.52333)
LuPb-13Wan.tdb	1558.53	HCP_A3 (x(Pb) 0.00844) + LIQUID (x(Pb) 0.1849) + LU5PB3_D88 (x(Pb) 0.375)
LuPb-13Wan.tdb	1558.53	HCP_A3 (x(Pb) 0.00844) + LIQUID (x(Pb) 0.18482) + LU5PB3_D88 (x(Pb) 0.375)
LuPb-13Wan.tdb	1430.76	LU5PB4_LT (x(Pb) 0.44444) + LU6PB5 (x(Pb) 0.45455) + LIQUID (x(Pb) 0.65661)
LuPb-13Wan.tdb	1430.76	LU5PB4_LT (x(Pb) 0.44444) + LU6PB5 (x(Pb) 0.45455) + LIQUID (x(Pb) 0.65649)
LuPb-13Wan.tdb	1430.76	LU5PB4_LT (x(Pb) 0.44444) + LU6PB5 (x(Pb) 0.45455) + LIQUID (x(Pb) 0.65671)
LuPb-13Wan.tdb	845.22	LU6PB5 (x(Pb) 0.45455) + LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.95645)
LuPb-13Wan.tdb	845.22	LU6PB5 (x(Pb) 0.45455) + LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.95662)
LuPb-13Wan.tdb	845.21	LU6PB5 (x(Pb) 0.45455) + LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.95655)
LuPb-13Wan.tdb	599.25	LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.99793) + FCC_A1 (x(Pb) 1)
LuPb-13Wan.tdb	599.25	LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.99797) + FCC_A1 (x(Pb) 1)
LuPb-13Wan.tdb	599.25	LUPB2 (x(Pb) 0.66667) + LIQUID (x(Pb) 0.99799) + FCC_A1 (x(Pb) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull LuPb-12Idd

Invariant reactions (literature)

Invariant reactions reported in the literature for the Lu–Pb system (24)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1774.4	Lu5Pb3 + L -> βLu5Pb4	Lu5Pb3: Pb 0.375; L: Pb 0.506; βLu5Pb4: Pb 0.444	model	[1] Wang 2013	Table 6, p. 4, row 6 report
1773.15	Lu5Pb3 + L -> βLu5Pb4	Lu5Pb3: Pb 0.375; βLu5Pb4: Pb 0.444	experimental	[1] Wang 2013 cites Mcmasters 1969 doi	Table 6, p. 4, row 5 report
1773	Liq + Lu5Pb3 <-> βLu5Pb4	Lu5Pb3: Pb 0.375; βLu5Pb4: Pb 0.444444	experimental	[2] Iddaoudi 2012 cites McMasters 1969	Table 3, p. 4, row 5 report
1773	Liq + Lu5Pb3 <-> βLu5Pb4	Lu5Pb3: Pb 0.375; βLu5Pb4: Pb 0.444444	model	[2] Iddaoudi 2012	Table 3, p. 4, row 6 report
1750	Liq +Lu5Pb3 <-> αLu5Pb4	Lu5Pb3: Pb 0.375; αLu5Pb4: Pb 0.444444	model	[2] Iddaoudi 2012	Table 3, p. 4, row 10 report
1748.85	βLu5Pb4 + L -> αLu5Pb4	βLu5Pb4: Pb 0.444; L: Pb 0.522; αLu5Pb4: Pb 0.444	model	[1] Wang 2013	Table 6, p. 4, row 8 report
1748.15	βLu5Pb4 + L -> αLu5Pb4	βLu5Pb4: Pb 0.444; αLu5Pb4: Pb 0.444	experimental	[1] Wang 2013 cites Mcmasters 1969 doi	Table 6, p. 4, row 7 report
1748	Liq +Lu5Pb3 <-> αLu5Pb4	Lu5Pb3: Pb 0.375; αLu5Pb4: Pb 0.444444	experimental	[2] Iddaoudi 2012 cites McMasters 1969	Table 3, p. 4, row 9 report
1558.15	eutectic: L -> (Lu) + Lu5Pb3	L: Pb 0.175; (Lu): Pb 0.01; Lu5Pb3: Pb 0.375	experimental	[1] Wang 2013 cites Mcmasters 1969 doi	Table 6, p. 4, row 1 report
1558	Liq <-> Lu5Pb3 + (Lu)	Lu5Pb3: Pb 0.375	model	[2] Iddaoudi 2012	Table 3, p. 4, row 2 report
1558	Liq <-> Lu5Pb3 + (Lu)	Lu5Pb3: Pb 0.375	experimental	[2] Iddaoudi 2012 cites McMasters 1969	Table 3, p. 4, row 1 report
1554.85	eutectic: L -> (Lu) + Lu5Pb3	L: Pb 0.186; (Lu): Pb 0.008; Lu5Pb3: Pb 0.375	model	[1] Wang 2013	Table 6, p. 4, row 2 report
1445.45	L + αLu5Pb4 -> Lu6Pb5	L: Pb 0.646; αLu5Pb4: Pb 0.444; Lu6Pb5: Pb 0.455	model	[1] Wang 2013	Table 6, p. 4, row 10 report
1443.15	L + αLu5Pb4 -> Lu6Pb5	αLu5Pb4: Pb 0.444444; Lu6Pb5: Pb 0.454545	experimental	[1] Wang 2013 cites Mcmasters 1969 doi	Table 6, p. 4, row 9 report
1443	Liq + αLu5Pb4 <-> Lu6Pb5	αLu5Pb4: Pb 0.444444; Lu6Pb5: Pb 0.454545	experimental	[2] Iddaoudi 2012 cites McMasters 1969	Table 3, p. 4, row 11 report
1443	Liq + αLu5Pb4 <-> Lu6Pb5	αLu5Pb4: Pb 0.444444; Lu6Pb5: Pb 0.454545	model	[2] Iddaoudi 2012	Table 3, p. 4, row 12 report
843.35	L + Lu6Pb5 -> LuPb2	L: Pb 0.948; Lu6Pb5: Pb 0.455; LuPb2: Pb 0.667	model	[1] Wang 2013	Table 6, p. 4, row 12 report
843.15	L + Lu6Pb5 -> LuPb2	Lu6Pb5: Pb 0.454545; LuPb2: Pb 0.666667	experimental	[1] Wang 2013 cites Mcmasters 1969 doi	Table 6, p. 4, row 11 report
843	Liq + Lu6Pb5 <-> LuPb2	Lu6Pb5: Pb 0.454545; LuPb2: Pb 0.666667	model	[2] Iddaoudi 2012	Table 3, p. 4, row 14 report
843	Liq + Lu6Pb5 <-> LuPb2	Lu6Pb5: Pb 0.454545; LuPb2: Pb 0.666667	experimental	[2] Iddaoudi 2012 cites McMasters 1969	Table 3, p. 4, row 13 report
598.15	eutectic: L -> LuPb2 + (Pb)	L: Pb 0.997; LuPb2: Pb 0.667; (Pb): Pb 1	model	[1] Wang 2013	Table 6, p. 4, row 14 report
597.15	eutectic: L -> LuPb2 + (Pb)	LuPb2: Pb 0.666667	experimental	[1] Wang 2013 cites Mcmasters 1969 doi	Table 6, p. 4, row 13 report
597	Liq <-> LuPb2 + (pb)	LuPb2: Pb 0.666667; (pb): Pb 1	experimental	[2] Iddaoudi 2012 cites McMasters 1969	Table 3, p. 4, row 15 report
596	Liq <-> LuPb2 + (pb)	LuPb2: Pb 0.666667; (pb): Pb 1	model	[2] Iddaoudi 2012	Table 3, p. 4, row 16 report

Other properties

Phase transition (6)

Phase transition, Lu–Pb system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1748 K	1748	αLu5Pb4 <-> βLu5Pb4 αLu5Pb4: Pb 0.444444; βLu5Pb4: Pb 0.444444	experimental	[2] Iddaoudi 2012 cites McMasters 1969	Table 3, p. 4, row 7 report
Phase transition	1750 K	1750	αLu5Pb4 <-> βLu5Pb4 αLu5Pb4: Pb 0.444444; βLu5Pb4: Pb 0.444444	model	[2] Iddaoudi 2012	Table 3, p. 4, row 8 report
Phase transition	1967 K	1967	Liq <-> Lu5Pb3 Liq: Pb 0.375; Lu5Pb3: Pb 0.375	model	[2] Iddaoudi 2012	Table 3, p. 4, row 4 report
Phase transition	1968 K	1968	Liq <-> Lu5Pb3 Liq: Pb 0.375; Lu5Pb3: Pb 0.375	experimental	[2] Iddaoudi 2012 cites McMasters 1969	Table 3, p. 4, row 3 report
Phase transition	1968.15 K	1968.15	L -> Lu5Pb3 L: Pb 0.375; Lu5Pb3: Pb 0.375	experimental	[1] Wang 2013 cites Mcmasters 1969 doi	Table 6, p. 4, row 3 report
Phase transition	1973.15 K	1973.15	L -> Lu5Pb3 L: Pb 0.375; Lu5Pb3: Pb 0.375	model	[1] Wang 2013	Table 6, p. 4, row 4 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
A. Iddaoudi, N. Selhaoui, M. Ait Amar, K. Mahdouk, A. Aharoune, L. Bouirden, Thermodynamic description of the Lu–Pb binary system, J Therm Anal Calorim 110, 923-928 (2012). doi:10.1007/s10973-011-1881-2

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}
}