Er–Ni system

28 accepted literature values from 1 paper(s) (experimental 14, model 14); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (15) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	14
model	14

Accepted values by property group
Property group	Values
invariant reaction	24
phase transition	4

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
ErNi-99Du.tdb	Z. Du, D. Wang, W. Zhang, J. Alloys Compd., 284, 206-12(1999). doi:10.1016/S0925-8388(98)00928-1	`3326a047cf17bbff549af85380129453051b0609b554d4aa5749e1a3f89ca468`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
ErNi-99Du.tdb	1650.54	LIQUID (x(Ni) 0.81287) + ER5NI22 (x(Ni) 0.81481) + ERNI5_D2D (x(Ni) 0.83333)
ErNi-99Du.tdb	1650.53	LIQUID (x(Ni) 0.81253) + ER5NI22 (x(Ni) 0.81481) + ERNI5_D2D (x(Ni) 0.83333)
ErNi-99Du.tdb	1644.42	LIQUID (x(Ni) 0.79278) + ER4NI17 (x(Ni) 0.80952) + ER5NI22 (x(Ni) 0.81481)
ErNi-99Du.tdb	1644.41	LIQUID (x(Ni) 0.79319) + ER4NI17 (x(Ni) 0.80952) + ER5NI22 (x(Ni) 0.81481)
ErNi-99Du.tdb	1634.09	LIQUID (x(Ni) 0.77682) + ERNI4 (x(Ni) 0.8) + ER4NI17 (x(Ni) 0.80952)
ErNi-99Du.tdb	1634.09	LIQUID (x(Ni) 0.77702) + ERNI4 (x(Ni) 0.8) + ER4NI17 (x(Ni) 0.80952)
ErNi-99Du.tdb	1634.09	LIQUID (x(Ni) 0.77665) + ERNI4 (x(Ni) 0.8) + ER4NI17 (x(Ni) 0.80952)
ErNi-99Du.tdb	1594.73	LIQUID (x(Ni) 0.73939) + ERNI3 (x(Ni) 0.75) + ERNI4 (x(Ni) 0.8)
ErNi-99Du.tdb	1594.72	LIQUID (x(Ni) 0.73954) + ERNI3 (x(Ni) 0.75) + ERNI4 (x(Ni) 0.8)
ErNi-99Du.tdb	1594.72	LIQUID (x(Ni) 0.73951) + ERNI3 (x(Ni) 0.75) + ERNI4 (x(Ni) 0.8)
ErNi-99Du.tdb	1587.4	ERNI5_D2D (x(Ni) 0.83333) + ER2NI17 (x(Ni) 0.89474) + LIQUID (x(Ni) 0.89721)
ErNi-99Du.tdb	1587.4	ERNI5_D2D (x(Ni) 0.83333) + ER2NI17 (x(Ni) 0.89474) + LIQUID (x(Ni) 0.89721)
ErNi-99Du.tdb	1569.9	ER2NI17 (x(Ni) 0.89474) + LIQUID (x(Ni) 0.92397) + FCC_A1 (x(Ni) 1)
ErNi-99Du.tdb	1569.9	ER2NI17 (x(Ni) 0.89474) + LIQUID (x(Ni) 0.92404) + FCC_A1 (x(Ni) 1)
ErNi-99Du.tdb	1569.9	ER2NI17 (x(Ni) 0.89474) + LIQUID (x(Ni) 0.92415) + FCC_A1 (x(Ni) 1)
ErNi-99Du.tdb	1547.98	ERNI3 (x(Ni) 0.75) + ER2NI7 (x(Ni) 0.77778) + ERNI4 (x(Ni) 0.8)
ErNi-99Du.tdb	1527.41	ERNI2_C15 (x(Ni) 0.66667) + LIQUID (x(Ni) 0.66971) + ERNI3 (x(Ni) 0.75)
ErNi-99Du.tdb	1527.41	ERNI2_C15 (x(Ni) 0.66667) + LIQUID (x(Ni) 0.66994) + ERNI3 (x(Ni) 0.75)
ErNi-99Du.tdb	1527.41	ERNI2_C15 (x(Ni) 0.66667) + LIQUID (x(Ni) 0.66956) + ERNI3 (x(Ni) 0.75)
ErNi-99Du.tdb	1305.97	ERNI_B27 (x(Ni) 0.5) + LIQUID (x(Ni) 0.55166) + ERNI2_C15 (x(Ni) 0.66667)
ErNi-99Du.tdb	1305.97	ERNI_B27 (x(Ni) 0.5) + LIQUID (x(Ni) 0.55177) + ERNI2_C15 (x(Ni) 0.66667)
ErNi-99Du.tdb	1109.71	HCP_A3 (x(Ni) 0) + ER3NI_D011 (x(Ni) 0.25) + LIQUID (x(Ni) 0.27696)
ErNi-99Du.tdb	1109.71	HCP_A3 (x(Ni) 0) + ER3NI_D011 (x(Ni) 0.25) + LIQUID (x(Ni) 0.27693)
ErNi-99Du.tdb	1109.71	HCP_A3 (x(Ni) 0) + ER3NI_D011 (x(Ni) 0.25) + LIQUID (x(Ni) 0.27672)
ErNi-99Du.tdb	1076.39	LIQUID (x(Ni) 0.3808) + ER3NI2 (x(Ni) 0.4) + ERNI_B27 (x(Ni) 0.5)
ErNi-99Du.tdb	1076.39	LIQUID (x(Ni) 0.38108) + ER3NI2 (x(Ni) 0.4) + ERNI_B27 (x(Ni) 0.5)
ErNi-99Du.tdb	1039.68	ER3NI_D011 (x(Ni) 0.25) + LIQUID (x(Ni) 0.342) + ER3NI2 (x(Ni) 0.4)
ErNi-99Du.tdb	1039.68	ER3NI_D011 (x(Ni) 0.25) + LIQUID (x(Ni) 0.3421) + ER3NI2 (x(Ni) 0.4)
ErNi-99Du.tdb	1039.68	ER3NI_D011 (x(Ni) 0.25) + LIQUID (x(Ni) 0.34181) + ER3NI2 (x(Ni) 0.4)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Er–Ni system (24)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1651	liq. + ErNi5->Er5Ni22	L: Ni 0.8125; ErNi5: Ni 0.833333; Er5Ni22: Ni 0.814815	model	[1] Du 1999	Table 7, p. 6, row 21 report
1648	liq. + ErNi5->Er5Ni22	L: Ni 0.81; ErNi5: Ni 0.833333; Er5Ni22: Ni 0.814815	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 22 report
1644	liq. + Er5Ni22->Er4Ni17	L: Ni 0.793; Er5Ni22: Ni 0.814815; Er4Ni17: Ni 0.809524	model	[1] Du 1999	Table 7, p. 6, row 19 report
1643	liq. + Er5Ni22->Er4Ni17	L: Ni 0.795; Er5Ni22: Ni 0.814815; Er4Ni17: Ni 0.809524	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 20 report
1634	liq. + Er4Ni17->ErNi4	L: Ni 0.7768; Er4Ni17: Ni 0.809524; ErNi4: Ni 0.8	model	[1] Du 1999	Table 7, p. 6, row 17 report
1633	liq. + Er4Ni17->ErNi4	L: Ni 0.77; Er4Ni17: Ni 0.809524; ErNi4: Ni 0.8	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 18 report
1595	liq. + ErNi4->ErNi3	L: Ni 0.7395; ErNi4: Ni 0.8; ErNi3: Ni 0.75	model	[1] Du 1999	Table 7, p. 6, row 13 report
1593	liq. + ErNi4->ErNi3	L: Ni 0.72; ErNi4: Ni 0.8; ErNi3: Ni 0.75	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 14 report
1588	liq. + ErNi5->Er2Ni17	L: Ni 0.905; ErNi5: Ni 0.833333; Er2Ni17: Ni 0.894737	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 26 report
1587	liq. + ErNi5->Er2Ni17	L: Ni 0.8972; ErNi5: Ni 0.833333; Er2Ni17: Ni 0.894737	model	[1] Du 1999	Table 7, p. 6, row 25 report
1570	eutectic: liq.->Er2Ni17 + fcc(Ni)	L: Ni 0.924; Er2Ni17: Ni 0.894737	model	[1] Du 1999	Table 7, p. 6, row 27 report
1553	eutectic: liq.->Er2Ni17 + fcc(Ni)	L: Ni 0.92; Er2Ni17: Ni 0.894737	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 28 report
1548	ErNi3 + ErNi4->Er2Ni7	ErNi3: Ni 0.75; ErNi4: Ni 0.8; Er2Ni7: Ni 0.777778	model	[1] Du 1999	Table 7, p. 6, row 15 report
1548	ErNi3 + ErNi4->Er2Ni7	ErNi3: Ni 0.75; ErNi4: Ni 0.8; Er2Ni7: Ni 0.777778	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 16 report
1528	liq. + ErNi3->ErNi2	L: Ni 0.66; ErNi3: Ni 0.75; ErNi2: Ni 0.666667	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 12 report
1527	liq. + ErNi3->ErNi2	L: Ni 0.67; ErNi3: Ni 0.75; ErNi2: Ni 0.666667	model	[1] Du 1999	Table 7, p. 6, row 11 report
1306	eutectic: liq.->ErNi + ErNi2	L: Ni 0.5517; ErNi: Ni 0.5; ErNi2: Ni 0.666667	model	[1] Du 1999	Table 7, p. 6, row 9 report
1298	eutectic: liq.->ErNi + ErNi2	L: Ni 0.55; ErNi: Ni 0.5; ErNi2: Ni 0.666667	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 10 report
1118	liq. + hcp(Er)->Er3Ni	L: Ni 0.26; Er3Ni: Ni 0.25	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 2 report
1110	liq. + hcp(Er)->Er3Ni	L: Ni 0.277; Er3Ni: Ni 0.25	model	[1] Du 1999	Table 7, p. 6, row 1 report
1076	liq. + ErNi->Er3Ni2	L: Ni 0.381; ErNi: Ni 0.5; Er3Ni2: Ni 0.4	model	[1] Du 1999	Table 7, p. 6, row 5 report
1073	liq. + ErNi->Er3Ni2	L: Ni 0.32; ErNi: Ni 0.5; Er3Ni2: Ni 0.4	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 6 report
1040	eutectic: liq.->Er3Ni + Er3Ni2	L: Ni 0.342; Er3Ni: Ni 0.25; Er3Ni2: Ni 0.4	model	[1] Du 1999	Table 7, p. 6, row 3 report
1038	eutectic: liq.->Er3Ni + Er3Ni2	L: Ni 0.31; Er3Ni: Ni 0.25; Er3Ni2: Ni 0.4	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 4 report

Other properties

Phase transition (4)

Phase transition, Er–Ni system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1363 K	1363	liq.->ErNi L: Ni 0.5; ErNi: Ni 0.5	model	[1] Du 1999	Table 7, p. 6, row 7 report
Phase transition	1373 K	1373	liq.->ErNi L: Ni 0.5; ErNi: Ni 0.5	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 8 report
Phase transition	1653 K	1653	liq.->ErNi5 L: Ni 0.83; ErNi5: Ni 0.833333	experimental	[1] Du 1999 cites Buschow 1968 doi	Table 7, p. 6, row 24 report
Phase transition	1657 K	1657	liq.->ErNi5 L: Ni 0.8333; ErNi5: Ni 0.833333	model	[1] Du 1999	Table 7, p. 6, 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, Donghui Wang, Weijing Zhang, Thermodynamic assessment of the Co–Pr, Er–Ni and Ni–Pr systems, Journal of Alloys and Compounds 284, 206-212 (1999). doi:10.1016/s0925-8388(98)00928-1

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}
}