Eu–Mg system

45 accepted literature values from 1 paper(s) (experimental 9, model 8, DFT 28); 0 calculated phase diagram(s). 1 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · phases (8) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	9
model	8
DFT	28

Accepted values by property group
Property group	Values
invariant reaction	13
phase transition	4
crystal structure	28

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Eu–Mg system (13)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
848	peritectic: L + Mg2Eu -> Mg5Eu	L: Mg 0.8458	model	[1] Tao 2008	Table 3, p. 4, row 9 report
847	eutectic: L -> Mg17Eu2 + Mg5Eu	L: Mg 0.8545	model	[1] Tao 2008	Table 3, p. 4, row 7 report
846	peritectic: L + Mg2Eu -> Mg5Eu	L: Mg 0.8434	experimental	[1] Tao 2008 cites Muhlpfordt 1969 doi	Table 3, p. 4, row 8 report
845	eutectic: L -> HCP + Mg17Eu2	L: Mg 0.9934	model	[1] Tao 2008	Table 3, p. 4, row 3 report
844	eutectic: L -> HCP + Mg17Eu2	L: Mg 0.994	experimental	[1] Tao 2008 cites Muhlpfordt 1969 doi	Table 3, p. 4, row 1 report
842	eutectic: L -> Mg17Eu2 + Mg5Eu	L: Mg 0.86	experimental	[1] Tao 2008 cites Muhlpfordt 1969 doi	Table 3, p. 4, row 6 report
835	eutectic: L -> HCP + Mg17Eu2	L: Mg 0.993	experimental	[1] Tao 2008 cites Rokhlin 2003 doi	Table 3, p. 4, row 2 report
813	eutectoid: Mg5Eu + Mg2Eu -> Mg4Eu	Mg4Eu: Mg 0.8	experimental	[1] Tao 2008 cites Zandbergen 1989 doi	Table 3, p. 4, row 10 report
813	eutectoid: Mg5Eu + Mg2Eu -> Mg4Eu	Mg4Eu: Mg 0.8	model	[1] Tao 2008	Table 3, p. 4, row 11 report
736	peritectic: L + Mg2Eu -> MgEu	L: Mg 0.34	model	[1] Tao 2008	Table 3, p. 4, row 15 report
736	peritectic: L + Mg2Eu -> MgEu	L: Mg 0.34	experimental	[1] Tao 2008 cites Muhlpfordt 1969 doi	Table 3, p. 4, row 14 report
728	eutectic: L -> MgEu + Eu	L: Mg 0.326	model	[1] Tao 2008	Table 3, p. 4, row 17 report
722	eutectic: L -> MgEu + Eu	L: Mg 0.31	experimental	[1] Tao 2008 cites Muhlpfordt 1969 doi	Table 3, p. 4, row 16 report

Other properties

Phase transition (4)

Phase transition, Eu–Mg system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	857 K	857	congruent melting: L -> Mg17Eu2 L: Mg 0.8947	model	[1] Tao 2008	Table 3, p. 4, row 5 report
Phase transition	864 K	864	congruent melting: L -> Mg17Eu2 L: Mg 0.8947	experimental	[1] Tao 2008 cites Muhlpfordt 1969 doi	Table 3, p. 4, row 4 report
Phase transition	990 K	990	congruent melting: L -> Mg2Eu L: Mg 0.6667	model	[1] Tao 2008	Table 3, p. 4, row 13 report
Phase transition	992 K	992	congruent melting: L -> Mg2Eu L: Mg 0.6667	experimental	[1] Tao 2008 cites Muhlpfordt 1969 doi	Table 3, p. 4, row 12 report

Crystal structure (28)

Crystal structure, Eu–Mg system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	10.4289 Å	0	Mg17Eu2 alloy: Mg 0.894737	DFT	[1] Tao 2008	Table 1, p. 2, row 4 report
Lattice a	10.49 Å		Mg17Eu2 alloy: Mg 0.894737	DFT	[1] Tao 2008 cites Klemm 1964 doi	Table 1, p. 2, row 5 report
Lattice a	10.493 Å		Mg17Eu2 alloy: Mg 0.894737	DFT	[1] Tao 2008 cites Lueken 1985 doi	Table 1, p. 2, row 7 report
Lattice a	10.468 Å		Mg17Eu2 alloy: Mg 0.894737	DFT	[1] Tao 2008 cites Kripyakevich 1969	Table 1, p. 2, row 6 report
Lattice a	6.379 Å		Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008 cites Klemm 1964 doi	Table 1, p. 2, row 13 report
Lattice a	6.3443 Å		Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008 cites Buschow 1978 doi	Table 1, p. 2, row 15 report
Lattice a	6.3319 Å	0	Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008	Table 1, p. 2, row 12 report
Lattice a	6.344 Å		Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008 cites Graaf 1979 doi	Table 1, p. 2, row 16 report
Lattice a	6.386 Å		Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008 cites Iandelli 1965 doi	Table 1, p. 2, row 14 report
Lattice a	10.416 Å		Mg4Eu alloy: Mg 0.8	DFT	[1] Tao 2008 cites Zandbergen 1989 doi	Table 1, p. 2, row 11 report
Lattice a	10.4126 Å		Mg5Eu alloy: Mg 0.833333	DFT	[1] Tao 2008 cites Muhlpfordt 1970 doi	Table 1, p. 2, row 10 report
Lattice a	10.3597 Å	0	Mg5Eu alloy: Mg 0.833333	DFT	[1] Tao 2008	Table 1, p. 2, row 9 report
Lattice a	10.3953 Å		Mg5Eu alloy: Mg 0.833333	DFT	[1] Tao 2008 cites Erassme 1987 doi	Table 1, p. 2, row 8 report
Lattice a	4.0493 Å	0	MgEu alloy: Mg 0.5	DFT	[1] Tao 2008	Table 1, p. 2, row 17 report
Lattice a	4.102 Å		MgEu alloy: Mg 0.5	DFT	[1] Tao 2008 cites Klemm 1964 doi	Table 1, p. 2, row 18 report
Lattice c	10.2629 Å	0	Mg17Eu2 alloy: Mg 0.894737	DFT	[1] Tao 2008	Table 1, p. 2, row 4 report
Lattice c	10.33 Å		Mg17Eu2 alloy: Mg 0.894737	DFT	[1] Tao 2008 cites Klemm 1964 doi	Table 1, p. 2, row 5 report
Lattice c	10.327 Å		Mg17Eu2 alloy: Mg 0.894737	DFT	[1] Tao 2008 cites Lueken 1985 doi	Table 1, p. 2, row 7 report
Lattice c	10.374 Å		Mg17Eu2 alloy: Mg 0.894737	DFT	[1] Tao 2008 cites Kripyakevich 1969	Table 1, p. 2, row 6 report
Lattice c	10.308 Å		Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008 cites Klemm 1964 doi	Table 1, p. 2, row 13 report
Lattice c	10.2585 Å		Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008 cites Buschow 1978 doi	Table 1, p. 2, row 15 report
Lattice c	10.2282 Å	0	Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008	Table 1, p. 2, row 12 report
Lattice c	10.258 Å		Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008 cites Graaf 1979 doi	Table 1, p. 2, row 16 report
Lattice c	10.324 Å		Mg2Eu alloy: Mg 0.666667	DFT	[1] Tao 2008 cites Iandelli 1965 doi	Table 1, p. 2, row 14 report
Lattice c	28.051 Å		Mg4Eu alloy: Mg 0.8	DFT	[1] Tao 2008 cites Zandbergen 1989 doi	Table 1, p. 2, row 11 report
Lattice c	10.7626 Å		Mg5Eu alloy: Mg 0.833333	DFT	[1] Tao 2008 cites Muhlpfordt 1970 doi	Table 1, p. 2, row 10 report
Lattice c	10.6103 Å	0	Mg5Eu alloy: Mg 0.833333	DFT	[1] Tao 2008	Table 1, p. 2, row 9 report
Lattice c	10.7463 Å		Mg5Eu alloy: Mg 0.833333	DFT	[1] Tao 2008 cites Erassme 1987 doi	Table 1, p. 2, row 8 report

Sources

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

X.M. Tao, H. Wang, W.J. Zhu, H.S. Liu, Y.F. Ouyang, Z.P. Jin, Thermodynamic description of the Mg–Eu binary system, Calphad 32, 462-465 (2008). doi:10.1016/j.calphad.2008.07.003

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-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); 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); 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. 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_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}
}