Ca–Mg–Sr system

7 accepted literature values from 1 paper(s) (model 4, unspecified 3); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
model	4
unspecified	3

Accepted values by property group
Property group	Values
invariant reaction	4
formation	1
crystal structure	2

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ca–Mg–Sr system (4)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
859.5	L + Mg23Sr6 = C14 + Mg38Sr9	L: Ca 0.0195, Sr 0.161	model	[1] Zhong 2006	Table 5, p. 6, row 1 report
841.9	L + Mg38Sr9 = C14 + Mg17Sr2	L: Ca 0.036, Sr 0.1308	model	[1] Zhong 2006	Table 5, p. 6, row 2 report
783.9	L = C14 + Mg17Sr2 + hcp	L: Ca 0.0843, Sr 0.0275	model	[1] Zhong 2006	Table 5, p. 6, row 3 report
717	L = C14 + fcc + bcc	L: Ca 0.6923, Sr 0.0153	model	[1] Zhong 2006	Table 5, p. 6, row 4 report

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Ca–Mg–Sr system (1)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location	Quote
Ca2Ca-C14		8.1768 kJ/mol-atom	0	unspecified			[1] Zhong 2006	Table 2, p. 4, row 17 report

Other properties

Crystal structure (2)

Crystal structure, Ca–Mg–Sr system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Lattice a printed: a (=b)	7.141 Å	0	Ca2Ca-C14 alloy: Mg 0, Sr 0	unspecified	[1] Zhong 2006	Table 2, p. 4, row 17 report
Lattice c printed: c	11.699 Å	0	Ca2Ca-C14 alloy: Mg 0, Sr 0	unspecified	[1] Zhong 2006	Table 2, p. 4, row 17 report

Sources

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

Yu Zhong, Jorge O. Sofo, Alan A. Luo, Zi-Kui Liu, Thermodynamics modeling of the Mg–Sr and Ca–Mg–Sr systems, Journal of Alloys and Compounds 421, 172-178 (2006). doi:10.1016/j.jallcom.2005.09.076

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 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_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}
}