Pb–Pu system

16 accepted literature values from 1 paper(s) (experimental 8, model 8); 1 calculated phase diagram(s). 3 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 (15) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	8
model	8

Accepted values by property group
Property group	Values
invariant reaction	16

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
PbPu-10Li.tdb	Z.S. Li, X.J. Liu, C.P. Wang, J. Nucl. Mater., 403, 1-6(2010). doi:10.1016/j.jnucmat.2010.02.002	`6278a37bf7a5c88647159fe9e3ba6a4594b817ae4c4173ad4db47ea9e999e985`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
PbPu-10Li.tdb	1608.58	PB4PU5 (x(Pu) 0.55556) + PB3PU5_D8M (x(Pu) 0.625) + LIQUID (x(Pu) 0.64267)
PbPu-10Li.tdb	1608.58	PB4PU5 (x(Pu) 0.55556) + PB3PU5_D8M (x(Pu) 0.625) + LIQUID (x(Pu) 0.64293)
PbPu-10Li.tdb	1608.58	PB4PU5 (x(Pu) 0.55556) + PB3PU5_D8M (x(Pu) 0.625) + LIQUID (x(Pu) 0.64242)
PbPu-10Li.tdb	1461.97	LIQUID (x(Pu) 0.39354) + PB5PU4 (x(Pu) 0.41777) + PB4PU5 (x(Pu) 0.55556)
PbPu-10Li.tdb	1461.96	LIQUID (x(Pu) 0.39318) + PB5PU4 (x(Pu) 0.41771) + PB4PU5 (x(Pu) 0.55556)
PbPu-10Li.tdb	1403.42	LIQUID (x(Pu) 0.3285) + PB2PU_BETA (x(Pu) 0.33333) + PB5PU4 (x(Pu) 0.40602)
PbPu-10Li.tdb	1403.42	LIQUID (x(Pu) 0.32865) + PB2PU_BETA (x(Pu) 0.33333) + PB5PU4 (x(Pu) 0.40605)
PbPu-10Li.tdb	1393.94	PB3PU_L12 (x(Pu) 0.25) + LIQUID (x(Pu) 0.29862) + PB2PU_BETA (x(Pu) 0.33333)
PbPu-10Li.tdb	1393.94	PB3PU_L12 (x(Pu) 0.25) + LIQUID (x(Pu) 0.29862) + PB2PU_BETA (x(Pu) 0.33333)
PbPu-10Li.tdb	1393.94	PB3PU_L12 (x(Pu) 0.25) + LIQUID (x(Pu) 0.29862) + PB2PU_BETA (x(Pu) 0.33333)
PbPu-10Li.tdb	1393.94	PB3PU_L12 (x(Pu) 0.25) + LIQUID (x(Pu) 0.29834) + PB2PU_BETA (x(Pu) 0.33333)
PbPu-10Li.tdb	1381.58	PB2PU_ALPHA (x(Pu) 0.33333) + PB2PU_BETA (x(Pu) 0.33333) + PB5PU4 (x(Pu) 0.40731)
PbPu-10Li.tdb	1381.58	PB3PU_L12 (x(Pu) 0.25) + PB2PU_ALPHA (x(Pu) 0.33333) + PB2PU_BETA (x(Pu) 0.33333)
PbPu-10Li.tdb	1381.58	PB2PU_BETA (x(Pu) 0.33333) + PB2PU_ALPHA (x(Pu) 0.33333) + PB5PU4 (x(Pu) 0.40732)
PbPu-10Li.tdb	1170.74	PB3PU5_D8M (x(Pu) 0.625) + PBPU3_L12 (x(Pu) 0.75) + LIQUID (x(Pu) 0.9904)
PbPu-10Li.tdb	1170.74	PB3PU5_D8M (x(Pu) 0.625) + PBPU3_L12 (x(Pu) 0.75) + LIQUID (x(Pu) 0.99039)
PbPu-10Li.tdb	1170.74	PB3PU5_D8M (x(Pu) 0.625) + PBPU3_L12 (x(Pu) 0.75) + LIQUID (x(Pu) 0.9904)
PbPu-10Li.tdb	1170.74	PB3PU5_D8M (x(Pu) 0.625) + PBPU3_L12 (x(Pu) 0.75) + LIQUID (x(Pu) 0.9904)
PbPu-10Li.tdb	910.93	PBPU3_L12 (x(Pu) 0.75) + LIQUID (x(Pu) 0.99914) + BCC_A2 (x(Pu) 1)
PbPu-10Li.tdb	910.93	PBPU3_L12 (x(Pu) 0.75) + LIQUID (x(Pu) 0.99915) + BCC_A2 (x(Pu) 1)
PbPu-10Li.tdb	755.67	PBPU3_L12 (x(Pu) 0.75) + TETRAGONAL_A6 (x(Pu) 1) + BCC_A2 (x(Pu) 1)
PbPu-10Li.tdb	736.46	PBPU3_L12 (x(Pu) 0.75) + FCC_A1 (x(Pu) 1) + TETRAGONAL_A6 (x(Pu) 1)
PbPu-10Li.tdb	600.58	FCC_A1 (x(Pu) 0) + LIQUID (x(Pu) 5.000e-5) + PB3PU_L12 (x(Pu) 0.25)
PbPu-10Li.tdb	593.06	PBPU3_L12 (x(Pu) 0.75) + GAMMA_PU (x(Pu) 1) + FCC_A1 (x(Pu) 1)
PbPu-10Li.tdb	487.9	PBPU3_L12 (x(Pu) 0.75) + GAMMA_PU (x(Pu) 1) + BETA_PU (x(Pu) 1)
PbPu-10Li.tdb	397.62	PBPU3_L12 (x(Pu) 0.75) + ALPHA_PU (x(Pu) 1) + BETA_PU (x(Pu) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Pb–Pu system (16)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1658.15	congruent melting: L -> Pb4Pu5	Pb4Pu5: Pb 0.444	experimental	[1] Li 2010 cites Foltyn 1995	Table 5, p. 6, row 5 report
1658.15	congruent melting: L -> Pb4Pu5	Pb4Pu5: Pb 0.444	model	[1] Li 2010	Table 5, p. 6, row 6 report
1608.15	peritectic: L + Pb4Pu5 -> Pb3Pu5	L: Pb 0.357; Pb4Pu5: Pb 0.444; Pb3Pu5: Pb 0.375	model	[1] Li 2010	Table 5, p. 6, row 4 report
1606.15	peritectic: L + Pb4Pu5 -> Pb3Pu5	L: Pb 0.255; Pb4Pu5: Pb 0.444; Pb3Pu5: Pb 0.375	experimental	[1] Li 2010 cites Foltyn 1995	Table 5, p. 6, row 3 report
1462.15	peritectic: L + Pb4Pu5 -> Pb5Pu4	L: Pb 0.606; Pb4Pu5: Pb 0.444; Pb5Pu4: Pb 0.582	model	[1] Li 2010	Table 5, p. 6, row 8 report
1458.15	peritectic: L + Pb4Pu5 -> Pb5Pu4	L: Pb 0.575; Pb4Pu5: Pb 0.444; Pb5Pu4: Pb 0.556	experimental	[1] Li 2010 cites Foltyn 1995	Table 5, p. 6, row 7 report
1412.15	congruent melting: L -> PbPu3	PbPu3: Pb 0.75	model	[1] Li 2010	Table 5, p. 6, row 14 report
1411.15	congruent melting: L -> PbPu3	PbPu3: Pb 0.75	experimental	[1] Li 2010 cites Foltyn 1995	Table 5, p. 6, row 13 report
1403.15	peritectic: L + Pb5Pu4 -> βPb2Pu	L: Pb 0.671; Pb5Pu4: Pb 0.594; βPb2Pu: Pb 0.667	model	[1] Li 2010	Table 5, p. 6, row 10 report
1402.15	peritectic: L + Pb5Pu4 -> βPb2Pu	L: Pb 0.672; Pb5Pu4: Pb 0.575; βPb2Pu: Pb 0.667	experimental	[1] Li 2010 cites Foltyn 1995	Table 5, p. 6, row 9 report
1397.15	eutectic: L -> βPb2Pu + PbPu3	L: Pb 0.688; βPb2Pu: Pb 0.667; PbPu3: Pb 0.75	experimental	[1] Li 2010 cites Foltyn 1995	Table 5, p. 6, row 11 report
1394.15	eutectic: L -> βPb2Pu + PbPu3	L: Pb 0.701; βPb2Pu: Pb 0.667; PbPu3: Pb 0.75	model	[1] Li 2010	Table 5, p. 6, row 12 report
1381.15	polymorphic: αPb2Pu -> βPb2Pu	αPb2Pu: Pb 0.666667, Pu 0.333333; βPb2Pu: Pb 0.667	model	[1] Li 2010	Table 5, p. 6, row 16 report
1379.15	polymorphic: αPb2Pu -> βPb2Pu	αPb2Pu: Pb 0.666667, Pu 0.333333; βPb2Pu: Pb 0.667	experimental	[1] Li 2010 cites Foltyn 1995	Table 5, p. 6, row 15 report
1171.15	peritectic: L + Pb3Pu5 -> PbPu3	L: Pb 0.009; Pb3Pu5: Pb 0.375; PbPu3: Pb 0.25	model	[1] Li 2010	Table 5, p. 6, row 2 report
1169.15	peritectic: L + Pb3Pu5 -> PbPu3	L: Pb 0.005; Pb3Pu5: Pb 0.375; PbPu3: Pb 0.25	experimental	[1] Li 2010 cites Foltyn 1995	Table 5, p. 6, row 1 report

Sources

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

Z.S. Li, X.J. Liu, C.P. Wang, Thermodynamic modeling of the Pb–U and Pb–Pu systems, Journal of Nuclear Materials 403, 1-6 (2010). doi:10.1016/j.jnucmat.2010.02.002

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}
}