Ni–Th system

32 accepted literature values from 1 paper(s) (experimental 19, model 13); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (12) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	19
model	13

Accepted values by property group
Property group	Values
invariant reaction	32

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
NiTh-09Wan.tdb	C.P. Wang, Y. He, H.L. Zhang, X.J. Liu, J. Alloys Compd., 487, 126-31(2009). doi:10.1016/j.jallcom.2009.07.168	`e7c08f09f82aa588ec484241e79ec64c9d4fcb1d11f0b1e51655af348e5d53c9`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
NiTh-09Wan.tdb	1633.62	LIQUID (x(Th) 0.88882) + FCC_A1 (x(Th) 0.99964) + BCC_A2 (x(Th) 0.99971)
NiTh-09Wan.tdb	1633.62	LIQUID (x(Th) 0.88884) + FCC_A1 (x(Th) 0.99964) + BCC_A2 (x(Th) 0.99971)
NiTh-09Wan.tdb	1620.62	LIQUID (x(Th) 0.0951) + NI17TH2 (x(Th) 0.09524) + NI5TH_D2D (x(Th) 0.16667)
NiTh-09Wan.tdb	1564.57	FCC_A1 (x(Th) 0) + LIQUID (x(Th) 0.0556) + NI17TH2 (x(Th) 0.09524)
NiTh-09Wan.tdb	1564.57	FCC_A1 (x(Th) 0) + LIQUID (x(Th) 0.05559) + NI17TH2 (x(Th) 0.09524)
NiTh-09Wan.tdb	1564.57	FCC_A1 (x(Th) 0) + LIQUID (x(Th) 0.0555) + NI17TH2 (x(Th) 0.09524)
NiTh-09Wan.tdb	1516.04	NI5TH_D2D (x(Th) 0.16667) + NI7TH2_BETA (x(Th) 0.22222) + LIQUID (x(Th) 0.26194)
NiTh-09Wan.tdb	1516.04	NI5TH_D2D (x(Th) 0.16667) + NI7TH2_BETA (x(Th) 0.22222) + LIQUID (x(Th) 0.26183)
NiTh-09Wan.tdb	1470.59	NI5TH_D2D (x(Th) 0.16667) + NI7TH2_ALPHA (x(Th) 0.22222) + NI7TH2_BETA (x(Th) 0.22222)
NiTh-09Wan.tdb	1470.59	NI7TH2_ALPHA (x(Th) 0.22222) + NI7TH2_BETA (x(Th) 0.22222) + LIQUID (x(Th) 0.2751)
NiTh-09Wan.tdb	1470.59	NI7TH2_BETA (x(Th) 0.22222) + NI7TH2_ALPHA (x(Th) 0.22222) + LIQUID (x(Th) 0.27526)
NiTh-09Wan.tdb	1319.15	LIQUID (x(Th) 0.33304) + NI2TH_C32 (x(Th) 0.33333) + NI7TH4 (x(Th) 0.36364)
NiTh-09Wan.tdb	1319.15	LIQUID (x(Th) 0.33294) + NI2TH_C32 (x(Th) 0.33333) + NI7TH4 (x(Th) 0.36364)
NiTh-09Wan.tdb	1319.15	LIQUID (x(Th) 0.33325) + NI2TH_C32 (x(Th) 0.33333) + NI7TH4 (x(Th) 0.36364)
NiTh-09Wan.tdb	1304.24	NI7TH2_ALPHA (x(Th) 0.22222) + LIQUID (x(Th) 0.31085) + NI2TH_C32 (x(Th) 0.33333)
NiTh-09Wan.tdb	1304.23	NI7TH2_ALPHA (x(Th) 0.22222) + LIQUID (x(Th) 0.31105) + NI2TH_C32 (x(Th) 0.33333)
NiTh-09Wan.tdb	1304.23	NI7TH2_ALPHA (x(Th) 0.22222) + LIQUID (x(Th) 0.3111) + NI2TH_C32 (x(Th) 0.33333)
NiTh-09Wan.tdb	1298.1	NI7TH4 (x(Th) 0.36364) + LIQUID (x(Th) 0.40762) + NITH (x(Th) 0.5)
NiTh-09Wan.tdb	1298.1	NI7TH4 (x(Th) 0.36364) + LIQUID (x(Th) 0.40756) + NITH (x(Th) 0.5)
NiTh-09Wan.tdb	1284.71	NITH (x(Th) 0.5) + LIQUID (x(Th) 0.63731) + NI3TH7_D102 (x(Th) 0.7)
NiTh-09Wan.tdb	1284.71	NITH (x(Th) 0.5) + LIQUID (x(Th) 0.63721) + NI3TH7_D102 (x(Th) 0.7)
NiTh-09Wan.tdb	1280.93	NI3TH7_D102 (x(Th) 0.7) + LIQUID (x(Th) 0.77759) + FCC_A1 (x(Th) 0.9998)
NiTh-09Wan.tdb	1280.93	NI3TH7_D102 (x(Th) 0.7) + LIQUID (x(Th) 0.77756) + FCC_A1 (x(Th) 0.9998)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ni–Th system (32)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1803.15	congruent melting: L -> ThNi5	L: Ni 0.833; ThNi5: Ni 0.833333, Th 0.166667	experimental	[1] Wang 2009 cites Santandrea 1988 doi	Table 5, p. 5, row 24 report
1783.15	congruent melting: L -> ThNi5	L: Ni 0.833; ThNi5: Ni 0.833333, Th 0.166667	model	[1] Wang 2009	Table 5, p. 5, row 26 report
1783.15	congruent melting: L -> ThNi5	L: Ni 0.833; ThNi5: Ni 0.833333, Th 0.166667	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 25 report
1624.15	peritectic: L + ThNi5 -> Th2Ni19	L: Ni 0.905; ThNi5: Ni 0.86; Th2Ni19: Ni 0.905	model	[1] Wang 2009	Table 5, p. 5, row 29 report
1623.15	peritectic: L + ThNi5 -> Th2Ni19	L: Ni 0.915; ThNi5: Ni 0.86; Th2Ni19: Ni 0.8947	experimental	[1] Wang 2009 cites Santandrea 1988 doi	Table 5, p. 5, row 27 report
1585.15	eutectic: L -> Th2Ni19 + (Ni)	L: Ni 0.94; Th2Ni19: Ni 0.8947; (Ni): Ni 1	experimental	[1] Wang 2009 cites Santandrea 1988 doi	Table 5, p. 5, row 30 report
1583.15	peritectic: L + ThNi5 -> Th2Ni19	L: Ni 0.92; ThNi5: Ni 0.86; Th2Ni19: Ni 0.905	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 28 report
1578.15	eutectic: L -> Th2Ni19 + (Ni)	L: Ni 0.96; Th2Ni19: Ni 0.905; (Ni): Ni 1	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 31 report
1568.15	eutectic: L -> Th2Ni19 + (Ni)	L: Ni 0.945; Th2Ni19: Ni 0.905; (Ni): Ni 1	model	[1] Wang 2009	Table 5, p. 5, row 32 report
1518.15	peritectic: L + αThNi -> Th2Ni7	L: Ni 0.74; αThNi: Ni 0.833; Th2Ni7: Ni 0.778	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 20 report
1516.15	peritectic: L + αThNi -> Th2Ni7	L: Ni 0.738; αThNi: Ni 0.833; Th2Ni7: Ni 0.778	model	[1] Wang 2009	Table 5, p. 5, row 21 report
1470.15	polymorphic: αTh2Ni7 -> βTh2Ni7	αTh2Ni7: Ni 0.778; βTh2Ni7: Ni 0.777778, Th 0.222222	model	[1] Wang 2009	Table 5, p. 5, row 23 report
1468.15	polymorphic: αTh2Ni7 -> βTh2Ni7	αTh2Ni7: Ni 0.778; βTh2Ni7: Ni 0.777778, Th 0.222222	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 22 report
1463.15	congruent melting: L -> ThNi	L: Ni 0.5; ThNi: Ni 0.5, Th 0.5	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 9 report
1463.15	congruent melting: L -> ThNi	L: Ni 0.5; ThNi: Ni 0.5, Th 0.5	model	[1] Wang 2009	Table 5, p. 5, row 10 report
1460.15	congruent melting: L -> ThNi	L: Ni 0.5; ThNi: Ni 0.5, Th 0.5	experimental	[1] Wang 2009 cites Santandrea 1988 doi	Table 5, p. 5, row 8 report
1348.15	congruent melting: L -> Th4Ni7	L: Ni 0.636; Th4Ni7: Ni 0.636364, Th 0.363636	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 13 report
1346.15	congruent melting: L -> Th4Ni7	L: Ni 0.636; Th4Ni7: Ni 0.636364, Th 0.363636	model	[1] Wang 2009	Table 5, p. 5, row 14 report
1335.15	eutectic: L -> (αTh) + Th7Ni3	L: Ni 0.27; (αTh): Ni 0; Th7Ni3: Ni 0.3	experimental	[1] Wang 2009 cites Santandrea 1988 doi	Table 5, p. 5, row 3 report
1323.15	peritectic: L + Th4Ni7 -> ThNi2	L: Ni 0.68; Th4Ni7: Ni 0.636; ThNi2: Ni 0.667	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 15 report
1319.15	peritectic: L + Th4Ni7 -> ThNi2	L: Ni 0.666; Th4Ni7: Ni 0.636; ThNi2: Ni 0.667	model	[1] Wang 2009	Table 5, p. 5, row 16 report
1313.15	congruent melting: L -> Th7Ni3	L: Ni 0.3; Th7Ni3: Ni 0.3, Th 0.7	experimental	[1] Wang 2009 cites Santandrea 1988 doi	Table 5, p. 5, row 1 report
1313.15	congruent melting: L -> Th7Ni3	L: Ni 0.3; Th7Ni3: Ni 0.3, Th 0.7	model	[1] Wang 2009	Table 5, p. 5, row 2 report
1310.15	eutectic: L -> ThNi2 + αTh2Ni7	L: Ni 0.69; ThNi2: Ni 0.655; αTh2Ni7: Ni 0.8	experimental	[1] Wang 2009 cites Santandrea 1988 doi	Table 5, p. 5, row 17 report
1303.15	eutectic: L -> ThNi2 + αTh2Ni7	L: Ni 0.692; ThNi2: Ni 0.667; αTh2Ni7: Ni 0.778	model	[1] Wang 2009	Table 5, p. 5, row 19 report
1298.15	eutectic: L -> ThNi + Th4Ni7	L: Ni 0.58; ThNi: Ni 0.5; Th4Ni7: Ni 0.636	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 11 report
1298.15	eutectic: L -> ThNi + Th4Ni7	L: Ni 0.592; ThNi: Ni 0.5; Th4Ni7: Ni 0.636	model	[1] Wang 2009	Table 5, p. 5, row 12 report
1293.15	eutectic: L -> ThNi2 + αTh2Ni7	L: Ni 0.7; ThNi2: Ni 0.667; αTh2Ni7: Ni 0.778	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 18 report
1284.15	eutectic: L -> Th7Ni3 + ThNi	L: Ni 0.36; Th7Ni3: Ni 0.3; ThNi: Ni 0.5	model	[1] Wang 2009	Table 5, p. 5, row 7 report
1283.15	eutectic: L -> Th7Ni3 + ThNi	L: Ni 0.35; Th7Ni3: Ni 0.3; ThNi: Ni 0.5	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 6 report
1280.15	eutectic: L -> (αTh) + Th7Ni3	L: Ni 0.222; (αTh): Ni 0; Th7Ni3: Ni 0.3	model	[1] Wang 2009	Table 5, p. 5, row 5 report
1273.15	eutectic: L -> (αTh) + Th7Ni3	L: Ni 0.2; (αTh): Ni 0; Th7Ni3: Ni 0.3	experimental	[1] Wang 2009 cites Okamoto 1991 doi	Table 5, p. 5, row 4 report

Sources

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

C.P. Wang, Y. He, H.L. Zhang, X.J. Liu, Thermodynamic assessments of the U–Ni and Th–Ni systems, Journal of Alloys and Compounds 487, 126-131 (2009). doi:10.1016/j.jallcom.2009.07.168

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}
}