Al–Er system

8 accepted literature values from 1 paper(s) (unspecified 8); 2 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (10) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
unspecified	8

Accepted values by property group
Property group	Values
crystal structure	8

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
AlEr-02Cac.tdb	G. Cacciamani, A. Saccone, S. De Negri, R. Ferro, J. Phase Equilib., 23, 38-50(2002). doi:10.1361/105497102770332199	`263c39948e36dfd7110175c5df6bc6fe986f30c1705684a364eba8cbeebba9d2`	viewer · TDB · JSON
AlEr-22Xu.tdb	L. Xu, X. Shi, D. Xia, D. Huang, H. Tang, Calphad, 79, 102482(2022). doi:10.1016/j.calphad.2022.102482	`fa89fd62a159d00215391d8527f36b9e43df52b9b57a1e29f1dcc49269043860`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
AlEr-02Cac.tdb	1404.16	AL2ER_C15 (x(Er) 0.35004) + ALER (x(Er) 0.5) + LIQUID (x(Er) 0.52509)
AlEr-02Cac.tdb	1404.16	AL2ER_C15 (x(Er) 0.35005) + ALER (x(Er) 0.5) + LIQUID (x(Er) 0.52512)
AlEr-02Cac.tdb	1352.66	ALER (x(Er) 0.5) + LIQUID (x(Er) 0.57783) + AL2ER3 (x(Er) 0.6)
AlEr-02Cac.tdb	1352.66	ALER (x(Er) 0.5) + LIQUID (x(Er) 0.57755) + AL2ER3 (x(Er) 0.6)
AlEr-02Cac.tdb	1352.66	ALER (x(Er) 0.5) + LIQUID (x(Er) 0.57791) + AL2ER3 (x(Er) 0.6)
AlEr-02Cac.tdb	1328.93	AL2ER3 (x(Er) 0.6) + LIQUID (x(Er) 0.65703) + ALER2_C37 (x(Er) 0.66667)
AlEr-02Cac.tdb	1328.92	AL2ER3 (x(Er) 0.6) + LIQUID (x(Er) 0.65725) + ALER2_C37 (x(Er) 0.66667)
AlEr-02Cac.tdb	1277.87	LIQUID (x(Er) 0.08571) + AL3ER_L12 (x(Er) 0.25) + AL2ER_C15 (x(Er) 0.31411)
AlEr-02Cac.tdb	1272.59	ALER2_C37 (x(Er) 0.66667) + LIQUID (x(Er) 0.75299) + HCP_A3 (x(Er) 0.99967)
AlEr-02Cac.tdb	1272.59	ALER2_C37 (x(Er) 0.66667) + LIQUID (x(Er) 0.75304) + HCP_A3 (x(Er) 0.99967)
AlEr-02Cac.tdb	924.48	FCC_A1 (x(Er) 0) + LIQUID (x(Er) 0.01261) + AL3ER_L12 (x(Er) 0.25)
AlEr-02Cac.tdb	924.47	FCC_A1 (x(Er) 0) + LIQUID (x(Er) 0.01253) + AL3ER_L12 (x(Er) 0.25)
AlEr-22Xu.tdb	1410.22	AL2ER_C15 (x(Er) 0.35438) + ALER (x(Er) 0.5) + LIQUID (x(Er) 0.53566)
AlEr-22Xu.tdb	1410.22	AL2ER_C15 (x(Er) 0.35442) + ALER (x(Er) 0.5) + LIQUID (x(Er) 0.53575)
AlEr-22Xu.tdb	1383.85	LIQUID (x(Er) 0.13085) + AL3ER (x(Er) 0.25) + AL2ER_C15 (x(Er) 0.32515)
AlEr-22Xu.tdb	1340.75	ALER (x(Er) 0.5) + LIQUID (x(Er) 0.59534) + AL2ER3 (x(Er) 0.6)
AlEr-22Xu.tdb	1340.75	ALER (x(Er) 0.5) + LIQUID (x(Er) 0.59508) + AL2ER3 (x(Er) 0.6)
AlEr-22Xu.tdb	1340.75	ALER (x(Er) 0.5) + LIQUID (x(Er) 0.59545) + AL2ER3 (x(Er) 0.6)
AlEr-22Xu.tdb	1305.46	AL2ER3 (x(Er) 0.6) + ALER2_C37 (x(Er) 0.66667) + LIQUID (x(Er) 0.66771)
AlEr-22Xu.tdb	1305.45	AL2ER3 (x(Er) 0.6) + ALER2_C37 (x(Er) 0.66667) + LIQUID (x(Er) 0.66794)
AlEr-22Xu.tdb	1280.93	ALER2_C37 (x(Er) 0.66667) + LIQUID (x(Er) 0.72915) + HCP_A3 (x(Er) 0.99972)
AlEr-22Xu.tdb	1280.93	ALER2_C37 (x(Er) 0.66667) + LIQUID (x(Er) 0.72919) + HCP_A3 (x(Er) 0.99972)
AlEr-22Xu.tdb	912.03	FCC_A1 (x(Er) 0) + LIQUID (x(Er) 0.0231) + AL3ER (x(Er) 0.25)
AlEr-22Xu.tdb	912.03	FCC_A1 (x(Er) 0) + LIQUID (x(Er) 0.023) + AL3ER (x(Er) 0.25)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AlEr-02Cac

Other properties

Crystal structure (8)

Crystal structure, Al–Er system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	7.7967 Å	298.15	Al2Er alloy: Er 0.333333	unspecified	[1] Zhang 2008	Table 1, p. 3, row 9 report
Lattice a	8.123 Å	298.15	Al2Er3 alloy: Er 0.6	unspecified	[1] Zhang 2008	Table 1, p. 3, row 11 report
Lattice a	5.57 Å	298.15	AlEr alloy: Er 0.5	unspecified	[1] Zhang 2008	Table 1, p. 3, row 10 report
Lattice a	6.516 Å	298.15	AlEr2 alloy: Er 0.666667	unspecified	[1] Zhang 2008	Table 1, p. 3, row 12 report
Lattice b	5.801 Å	298.15	AlEr alloy: Er 0.5	unspecified	[1] Zhang 2008	Table 1, p. 3, row 10 report
Lattice b	5.015 Å	298.15	AlEr2 alloy: Er 0.666667	unspecified	[1] Zhang 2008	Table 1, p. 3, row 12 report
Lattice c	11.272 Å	298.15	AlEr alloy: Er 0.5	unspecified	[1] Zhang 2008	Table 1, p. 3, row 10 report
Lattice c	9.279 Å	298.15	AlEr2 alloy: Er 0.666667	unspecified	[1] Zhang 2008	Table 1, p. 3, row 12 report

Sources

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

L.G. Zhang, L.B. Liu, G.X. Huang, H.Y. Qi, B.R. Jia, Z.P. Jin, Thermodynamic assessment of the Al–Cu–Er system, Calphad 32, 527-534 (2008). doi:10.1016/j.calphad.2008.05.002

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}
}