Au–Pr system

30 accepted literature values from 1 paper(s) (experimental 15, model 15); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (14) · 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	30

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
AuPr-04Du.tdb	Z. Du, C. Guo, D. Lu, J. Alloys Compd., 364, 117-20(2004). doi:10.1016/S0925-8388(03)00525-5	`0faf40a50a1ef45cdeb06c0337859584508d3dbfd07350c3d64ae4e479c96766`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AuPr-04Du.tdb	1592.95	AUPR_B33 (x(Pr) 0.5) + AUPR_B2 (x(Pr) 0.5) + LIQUID (x(Pr) 0.57447)
AuPr-04Du.tdb	1592.95	LIQUID (x(Pr) 0.43267) + AUPR_B33 (x(Pr) 0.5) + AUPR_B2 (x(Pr) 0.5)
AuPr-04Du.tdb	1522.87	LIQUID (x(Pr) 0.41311) + AU4PR3 (x(Pr) 0.42857) + AUPR_B33 (x(Pr) 0.5)
AuPr-04Du.tdb	1522.87	LIQUID (x(Pr) 0.41325) + AU4PR3 (x(Pr) 0.42857) + AUPR_B33 (x(Pr) 0.5)
AuPr-04Du.tdb	1372.72	AU36PR17 (x(Pr) 0.32075) + LIQUID (x(Pr) 0.35185) + AU4PR3 (x(Pr) 0.42857)
AuPr-04Du.tdb	1372.72	AU36PR17 (x(Pr) 0.32075) + LIQUID (x(Pr) 0.35181) + AU4PR3 (x(Pr) 0.42857)
AuPr-04Du.tdb	1362.85	AU36PR17 (x(Pr) 0.32075) + AU2PR (x(Pr) 0.33333) + AU4PR3 (x(Pr) 0.42857)
AuPr-04Du.tdb	1322.58	AU51PR14 (x(Pr) 0.21538) + LIQUID (x(Pr) 0.28274) + AU36PR17 (x(Pr) 0.32075)
AuPr-04Du.tdb	1273.01	AU51PR14 (x(Pr) 0.21538) + AU36PR17 (x(Pr) 0.32075) + AU2PR (x(Pr) 0.33333)
AuPr-04Du.tdb	1172.89	LIQUID (x(Pr) 0.13007) + AU6PR (x(Pr) 0.14286) + AU51PR14 (x(Pr) 0.21538)
AuPr-04Du.tdb	1172.89	LIQUID (x(Pr) 0.13023) + AU6PR (x(Pr) 0.14286) + AU51PR14 (x(Pr) 0.21538)
AuPr-04Du.tdb	1062.84	FCC_A1 (x(Pr) 0.02026) + LIQUID (x(Pr) 0.07604) + AU6PR (x(Pr) 0.14286)
AuPr-04Du.tdb	1062.84	FCC_A1 (x(Pr) 0.02026) + LIQUID (x(Pr) 0.07603) + AU6PR (x(Pr) 0.14286)
AuPr-04Du.tdb	1033.11	LIQUID (x(Pr) 0.89946) + BCC_A2 (x(Pr) 0.98527) + DHCP (x(Pr) 0.99483)
AuPr-04Du.tdb	1022.92	AUPR_B33 (x(Pr) 0.5) + AUPR2_C37 (x(Pr) 0.66667) + LIQUID (x(Pr) 0.70047)
AuPr-04Du.tdb	1022.92	AUPR_B33 (x(Pr) 0.5) + AUPR2_C37 (x(Pr) 0.66667) + LIQUID (x(Pr) 0.70071)
AuPr-04Du.tdb	882.92	AUPR2_C37 (x(Pr) 0.66667) + LIQUID (x(Pr) 0.84275) + DHCP (x(Pr) 0.99591)
AuPr-04Du.tdb	882.92	AUPR2_C37 (x(Pr) 0.66667) + LIQUID (x(Pr) 0.84271) + DHCP (x(Pr) 0.99591)
AuPr-04Du.tdb	713.23	AUPR_B33 (x(Pr) 0.5) + AUPR_B27 (x(Pr) 0.5) + AUPR2_C37 (x(Pr) 0.66667)
AuPr-04Du.tdb	713.23	AU4PR3 (x(Pr) 0.42857) + AUPR_B27 (x(Pr) 0.5) + AUPR_B33 (x(Pr) 0.5)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Au–Pr system (30)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1693	congruent melting: liq.->γAuPr	L: Pr 0.5; γAuPr: Au 0.5, Pr 0.5	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 20 report
1693	congruent melting: liq.->γAuPr	L: Pr 0.5; γAuPr: Au 0.5, Pr 0.5	model	[1] Du 2004	Table 2, p. 4, row 19 report
1593	polymorphic: γAuPr->βAuPr	γAuPr: Au 0.5, Pr 0.5; βAuPr: Au 0.5, Pr 0.5	model	[1] Du 2004	Table 2, p. 4, row 21 report
1593	polymorphic: γAuPr->βAuPr	γAuPr: Au 0.5, Pr 0.5; βAuPr: Au 0.5, Pr 0.5	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 22 report
1523	liq.+βAuPr->Au4Pr3	L: Pr 0.4131; βAuPr: Au 0.5, Pr 0.5; Au4Pr3: Au 0.571429, Pr 0.428571	model	[1] Du 2004	Table 2, p. 4, row 17 report
1523	liq.+βAuPr->Au4Pr3	L: Pr 0.425; βAuPr: Au 0.5, Pr 0.5; Au4Pr3: Au 0.571429, Pr 0.428571	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 18 report
1483	congruent melting: liq.->Au51Pr14	L: Pr 0.2154; Au51Pr14: Au 0.784615, Pr 0.215385	model	[1] Du 2004	Table 2, p. 4, row 5 report
1483	congruent melting: liq.->Au51Pr14	L: Pr 0.22; Au51Pr14: Au 0.784615, Pr 0.215385	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 6 report
1453	congruent melting: liq.->Au36Pr17	L: Pr 0.32; Au36Pr17: Au 0.679245, Pr 0.320755	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 12 report
1453	congruent melting: liq.->Au36Pr17	L: Pr 0.3208; Au36Pr17: Au 0.679245, Pr 0.320755	model	[1] Du 2004	Table 2, p. 4, row 11 report
1373	eutectic: liq.->Au4Pr3+Au36Pr17	L: Pr 0.3519; Au4Pr3: Au 0.571429, Pr 0.428571; Au36Pr17: Au 0.679245, Pr 0.320755	model	[1] Du 2004	Table 2, p. 4, row 13 report
1373	eutectic: liq.->Au4Pr3+Au36Pr17	L: Pr 0.38; Au4Pr3: Au 0.571429, Pr 0.428571; Au36Pr17: Au 0.679245, Pr 0.320755	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 14 report
1363	Au4Pr3+Au36Pr17->Au2Pr	Au4Pr3: Au 0.571429, Pr 0.428571; Au36Pr17: Au 0.679245, Pr 0.320755; Au2Pr: Au 0.666667, Pr 0.333333	model	[1] Du 2004	Table 2, p. 4, row 15 report
1363	Au4Pr3+Au36Pr17->Au2Pr	Au4Pr3: Au 0.571429, Pr 0.428571; Au36Pr17: Au 0.679245, Pr 0.320755; Au2Pr: Au 0.666667, Pr 0.333333	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 16 report
1323	eutectic: liq.->Au51Pr14+Au6Pr	L: Pr 0.2827; Au51Pr14: Au 0.784615, Pr 0.215385; Au6Pr: Au 0.857143, Pr 0.142857	model	[1] Du 2004	Table 2, p. 4, row 7 report
1323	eutectic: liq.->Au51Pr14+Au6Pr	L: Pr 0.275; Au51Pr14: Au 0.784615, Pr 0.215385; Au6Pr: Au 0.857143, Pr 0.142857	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 8 report
1273	Au36Pr17->Au2Pr+Au51Pr14	Au36Pr17: Au 0.679245, Pr 0.320755; Au2Pr: Au 0.666667, Pr 0.333333; Au51Pr14: Au 0.784615, Pr 0.215385	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 10 report
1273	Au36Pr17->Au2Pr+Au51Pr14	Au36Pr17: Au 0.679245, Pr 0.320755; Au2Pr: Au 0.666667, Pr 0.333333; Au51Pr14: Au 0.784615, Pr 0.215385	model	[1] Du 2004	Table 2, p. 4, row 9 report
1173	liq.+Au51Pr14->Au6Pr	L: Pr 0.13; Au51Pr14: Au 0.784615, Pr 0.215385; Au6Pr: Au 0.857143, Pr 0.142857	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 4 report
1173	liq.+Au51Pr14->Au6Pr	L: Pr 0.1301; Au51Pr14: Au 0.784615, Pr 0.215385; Au6Pr: Au 0.857143, Pr 0.142857	model	[1] Du 2004	Table 2, p. 4, row 3 report
1063	eutectic: liq.->Au6Pr+fcc (Au)	L: Pr 0.095; Au6Pr: Au 0.857143, Pr 0.142857; fcc (Au): Pr 0.005	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 2 report
1063	eutectic: liq.->Au6Pr+fcc (Au)	L: Pr 0.076; Au6Pr: Au 0.857143, Pr 0.142857; fcc (Au): Pr 0.0158	model	[1] Du 2004	Table 2, p. 4, row 1 report
1033	bcc(Pr)->liq.+dhcp (Pr)	bcc(Pr): Pr 0.98; L: Pr 0.92; dhcp (Pr): Pr 0.998	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 30 report
1033	bcc(Pr)->liq.+dhcp (Pr)	bcc(Pr): Pr 0.9853; L: Pr 0.8995; dhcp (Pr): Pr 0.9948	model	[1] Du 2004	Table 2, p. 4, row 29 report
1023	liq.+βAuPr->AuPr2	L: Pr 0.7007; βAuPr: Au 0.5, Pr 0.5; AuPr2: Au 0.333333, Pr 0.666667	model	[1] Du 2004	Table 2, p. 4, row 25 report
1023	liq.+βAuPr->AuPr2	L: Pr 0.74; βAuPr: Au 0.5, Pr 0.5; AuPr2: Au 0.333333, Pr 0.666667	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 26 report
883	eutectic: liq.->AuPr2+dhcp (Pr)	L: Pr 0.82; AuPr2: Au 0.333333, Pr 0.666667; dhcp (Pr): Pr 0.999	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 28 report
883	eutectic: liq.->AuPr2+dhcp (Pr)	L: Pr 0.8428; AuPr2: Au 0.333333, Pr 0.666667; dhcp (Pr): Pr 0.998	model	[1] Du 2004	Table 2, p. 4, row 27 report
713	polymorphic: βAuPr->αAuPr	βAuPr: Au 0.5, Pr 0.5; αAuPr: Au 0.5, Pr 0.5	experimental	[1] Du 2004 cites Saccone 1997 doi	Table 2, p. 4, row 24 report
713	polymorphic: βAuPr->αAuPr	βAuPr: Au 0.5, Pr 0.5; αAuPr: Au 0.5, Pr 0.5	model	[1] Du 2004	Table 2, p. 4, row 23 report

Sources

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

Zhenmin Du, Cuiping Guo, Dongxian Lü, Thermodynamic assessment of the Au–Pr system, Journal of Alloys and Compounds 364, 117-120 (2004). doi:10.1016/s0925-8388(03)00525-5

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}
}