Er–Zr system

37 accepted literature values from 1 paper(s) (experimental 35, unspecified 2); 1 calculated phase diagram(s). 2 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 (4) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	35
unspecified	2

Accepted values by property group
Property group	Values
invariant reaction	4
phase transition	13
phase equilibrium	20

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
ErZr-10Jou.tdb	J. Jourdan, C. Toffolon-Masclet, J.-M. Joubert, J. Nucl. Mater., 402, 102-7(2010). doi:10.1016/j.jnucmat.2010.05.002	`9a683aa7ae003e8f80e36b9afe9946818cc13ab6e74791de33075651652a3460`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
ErZr-10Jou.tdb	1669.86	HCP_A3 (x(Zr) 0.31296) + LIQUID (x(Zr) 0.41574) + BCC_A2 (x(Zr) 0.45929)
ErZr-10Jou.tdb	1296.15	HCP_A3 (x(Zr) 0.21995) + HCP_A3#2 (x(Zr) 0.6821) + BCC_A2 (x(Zr) 0.7793)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Er–Zr system (4)
T (K)	Reaction / phases	Class	Source	Location
1670.15	eutectic: Liquid -> (Er) + (βZr)	unspecified	[1] Jourdan 2010	Table 4, p. 5, row 2 report
1653.15	eutectic: Liquid -> (Er) + (βZr)	experimental	[1] Jourdan 2010	Table 4, p. 5, row 1 report
1318.15	(Er) + (βZr) -> (αZr)	experimental	[1] Jourdan 2010	Table 4, p. 5, row 3 report
1304.15	(Er) + (βZr) -> (αZr)	unspecified	[1] Jourdan 2010	Table 4, p. 5, row 4 report

Other properties

Phase transition (13)

Phase transition, Er–Zr system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1223.15 K	1223.15	other: Er20Zr80 alloy: Er 0.2, Zr 0.8	experimental	[1] Jourdan 2010	Table 2, p. 4, row 5 report
Phase transition	1283.15 K	1283.15	other: Er25Zr75 alloy: Er 0.25, Zr 0.75	experimental	[1] Jourdan 2010	Table 2, p. 4, row 7 report
Phase transition	1318.15 K	1318.15	peritectoid: Er25Zr75 alloy: Er 0.25, Zr 0.75	experimental	[1] Jourdan 2010	Table 2, p. 4, row 6 report
Phase transition	1323.15 K	1323.15	peritectoid: Er35Zr65 alloy: Er 0.35, Zr 0.65	experimental	[1] Jourdan 2010	Table 2, p. 4, row 10 report
Phase transition	1648.15 K	1648.15	other: Er60Zr40 alloy: Er 0.6, Zr 0.4	experimental	[1] Jourdan 2010	Table 2, p. 4, row 17 report
Phase transition	1658.15 K	1658.15	other: Er52Zr48 alloy: Er 0.52, Zr 0.48	experimental	[1] Jourdan 2010	Table 2, p. 4, row 15 report
Phase transition	1663.15 K	1663.15	other: Er68Zr32 alloy: Er 0.68, Zr 0.32	experimental	[1] Jourdan 2010	Table 2, p. 4, row 21 report
Phase transition	1673.15 K	1673.15	other: Er45Zr55 alloy: Er 0.45, Zr 0.55	experimental	[1] Jourdan 2010	Table 2, p. 4, row 13 report
Phase transition	1678.15 K	1678.15	other: Er66.5Zr33.5 alloy: Er 0.665, Zr 0.335	experimental	[1] Jourdan 2010	Table 2, p. 4, row 19 report
Phase transition	1693.15 K	1693.15	other: Er80Zr20 alloy: Er 0.8, Zr 0.2	experimental	[1] Jourdan 2010	Table 2, p. 4, row 23 report
Phase transition	1723.15 K	1723.15	other: Er35Zr65 alloy: Er 0.35, Zr 0.65	experimental	[1] Jourdan 2010	Table 2, p. 4, row 9 report
Phase transition	1733.15 K	1733.15	other: Er90Zr10 alloy: Er 0.9, Zr 0.1	experimental	[1] Jourdan 2010	Table 2, p. 4, row 25 report
Phase transition	1823.15 K	1823.15	other: Er20Zr80 alloy: Er 0.2, Zr 0.8	experimental	[1] Jourdan 2010	Table 2, p. 4, row 4 report

Phase equilibrium (20)

Phase equilibrium, Er–Zr system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	773.15	(Zr) + (Er) (Zr): Er 0.123, Zr 0.877; (Er): Er 0.855, Zr 0.145	experimental	[1] Jourdan 2010	Table 1, p. 3, row 1 report
Phase composition	773.15	(Zr) + (Er) (Zr): Er 0.124, Zr 0.876; (Er): Er 0.925, Zr 0.075	experimental	[1] Jourdan 2010	Table 1, p. 3, row 2 report
Phase composition	1123.15	(Zr) + (Er) (Zr): Er 0.149, Zr 0.851; (Er): Er 0.887, Zr 0.113	experimental	[1] Jourdan 2010	Table 1, p. 3, row 3 report
Phase composition	1123.15	(Zr) + (Er) (Zr): Er 0.154, Zr 0.846; (Er): Er 0.879, Zr 0.121	experimental	[1] Jourdan 2010	Table 1, p. 3, row 4 report
Phase composition	1273.15	(Zr) + (Er) (Zr): Er 0.253, Zr 0.747; (Er): Er 0.798, Zr 0.202	experimental	[1] Jourdan 2010	Table 1, p. 3, row 6 report
Phase composition	1273.15	(Zr) + (Er) (Zr): Er 0.26, Zr 0.74; (Er): Er 0.79, Zr 0.21	experimental	[1] Jourdan 2010	Table 1, p. 3, row 5 report
Phase composition	1323.15	(Zr) + (Er) (Zr): Er 0.33, Zr 0.67; (Er): Er 0.756, Zr 0.244	experimental	[1] Jourdan 2010	Table 1, p. 3, row 7 report
Phase composition	1373.15	(Zr) + (Er) (Zr): Er 0.21, Zr 0.79; (Er): Er 0.719, Zr 0.281	experimental	[1] Jourdan 2010	Table 1, p. 3, row 8 report
Phase composition	1373.15	(Zr) + (Er) (Zr): Er 0.218, Zr 0.782; (Er): Er 0.679, Zr 0.321	experimental	[1] Jourdan 2010	Table 1, p. 3, row 9 report
Phase composition	1473.15	(Zr) + (Er) (Zr): Er 0.346, Zr 0.654; (Er): Er 0.683, Zr 0.317	experimental	[1] Jourdan 2010	Table 1, p. 3, row 10 report
Phase composition	1473.15	(Zr) + (Er) (Zr): Er 0.335, Zr 0.665; (Er): Er 0.693, Zr 0.307	experimental	[1] Jourdan 2010	Table 1, p. 3, row 11 report
Phase composition	1663.15	other: Er60Zr40 liquid: Er 0.6, Zr 0.4	experimental	[1] Jourdan 2010	Table 2, p. 4, row 16 report
Phase composition	1679.15	other: Er52Zr48 liquid: Er 0.52, Zr 0.48	experimental	[1] Jourdan 2010	Table 2, p. 4, row 14 report
Phase composition	1688.15	other: Er66.5Zr33.5 liquid: Er 0.665, Zr 0.335	experimental	[1] Jourdan 2010	Table 2, p. 4, row 18 report
Phase composition	1688.15	other: Er68Zr32 liquid: Er 0.68, Zr 0.32	experimental	[1] Jourdan 2010	Table 2, p. 4, row 20 report
Phase composition	1703.15	other: Er45Zr55 liquid: Er 0.45, Zr 0.55	experimental	[1] Jourdan 2010	Table 2, p. 4, row 12 report
Phase composition	1723.15	other: Er80Zr20 liquid: Er 0.8, Zr 0.2	experimental	[1] Jourdan 2010	Table 2, p. 4, row 22 report
Phase composition	1753.15	other: Er35Zr65 liquid: Er 0.35, Zr 0.65	experimental	[1] Jourdan 2010	Table 2, p. 4, row 8 report
Phase composition	1763.15	other: Er90Zr10 liquid: Er 0.9, Zr 0.1	experimental	[1] Jourdan 2010	Table 2, p. 4, row 24 report
Phase composition	2113.15	other: Zr liquid: Zr 1	experimental	[1] Jourdan 2010	Table 2, p. 4, row 1 report

Sources

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

J. Jourdan, C. Toffolon-Masclet, J.-M. Joubert, Experimental re-determination and thermodynamic assessment of the erbium–zirconium system, Journal of Nuclear Materials 402, 102-107 (2010). doi:10.1016/j.jnucmat.2010.05.002

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}
}