Al–Ca–Mg system

53 accepted literature values from 1 paper(s) (experimental 10, model 22, unspecified 21); 0 calculated phase diagram(s). 2 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

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Accepted values by evidence class
Evidence class	Values
experimental	10
model	22
unspecified	21

Accepted values by property group
Property group	Values
invariant reaction	34
phase transition	19

Invariant reactions (literature)

Invariant reactions reported in the literature for the Al–Ca–Mg system (34)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1008	other: L -> Mg2Ca+Al2Ca	L: Al 0.41, Ca 0.36, Mg 0.23	unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 21 report
912.1	other: L -> Mg2Ca+Al2Ca	L: Al 0.17, Ca 0.334, Mg 0.496	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 22 report
902.96	other: L -> Mg2Ca+Al2Ca	L: Al 0.207, Ca 0.337, Mg 0.456	model	[1] ISLAM 2005	Table VI, p. 10, row 20 report
829.2	peritectic: L+ Al2Ca -> Al14Ca13+ Mg2Ca	L: Al 0.263, Ca 0.542, Mg 0.195	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 35 report
823.89	peritectic: L+ Al2Ca -> Al14Ca13+ Mg2Ca	L: Al 0.277, Ca 0.539, Mg 0.184	model	[1] ISLAM 2005	Table VI, p. 10, row 33 report
815	other: L -> Al2Ca+ (Mg)	L: Al 0.114, Ca 0.054, Mg 0.832	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 28 report
808	other: L -> Al2Ca+ (Mg)		unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 24 report
808	other: L -> Al2Ca+ (Mg)		unspecified	[1] ISLAM 2005 cites ref. 38	Table VI, p. 10, row 27 report
783	eutectic: L -> Mg2Ca + Al2Ca + (Mg)	L: Al 0.09, Ca 0.12, Mg 0.79	unspecified	[1] ISLAM 2005 cites ref. 37	Table VI, p. 10, row 8 report
773.88	other: L -> Al2Ca+ (Mg)	L: Al 0.147, Ca 0.075, Mg 0.778	model	[1] ISLAM 2005	Table VI, p. 10, row 23 report
771.8	other: L -> Mg2Ca + Al3Ca8	L: Al 0.2, Ca 0.627, Mg 0.173	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 19 report
770.2	eutectic: L -> Mg2Ca + Al2Ca + (Mg)	L: Al 0.05, Ca 0.11, Mg 0.84	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 9 report
769.4	eutectic: L -> Mg2Ca + Al3Ca8 + Al14Ca13	L: Al 0.235, Ca 0.612, Mg 0.153	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 6 report
768.11	other: L -> Mg2Ca + Al3Ca8	L: Al 0.215, Ca 0.632, Mg 0.153	model	[1] ISLAM 2005	Table VI, p. 10, row 17 report
765	other: L -> Mg2Ca + Al3Ca8	L: Al 0.26, Ca 0.64, Mg 0.1	unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 18 report
764.19	eutectic: L -> Mg2Ca + Al3Ca8 + Al14Ca13	L: Al 0.255, Ca 0.612, Mg 0.133	model	[1] ISLAM 2005	Table VI, p. 10, row 4 report
761	eutectic: L -> Mg2Ca + Al3Ca8 + Al14Ca13	L: Al 0.28, Ca 0.64, Mg 0.08	unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 5 report
757	peritectic: L+ Al2Ca -> Al14Ca13+ Mg2Ca	L: Al 0.29, Ca 0.58, Mg 0.13	unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 34 report
754.72	eutectic: L -> Mg2Ca + Al2Ca + (Mg)	L: Al 0.092, Ca 0.109, Mg 0.799	model	[1] ISLAM 2005	Table VI, p. 10, row 7 report
732.5	other: L -> Al2Ca + γ	L: Al 0.453, Ca 0.006, Mg 0.541	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 31 report
723.8	other: L -> Al2Ca + γ	L: Al 0.423, Ca 0.013, Mg 0.565	model	[1] ISLAM 2005	Table VI, p. 10, row 29 report
720.4	eutectic: L -> Al4Ca+ (Al)+ β	L: Al 0.643, Ca 0.006, Mg 0.351	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 16 report
718.37	other: L -> Al2Ca + β	L: Al 0.613, Ca 0.015, Mg 0.372	model	[1] ISLAM 2005	Table VI, p. 10, row 32 report
717.39	peritectic: L+ Al2Ca -> Al4Ca+ β	L: Al 0.633, Ca 0.011, Mg 0.356	model	[1] ISLAM 2005	Table VI, p. 10, row 36 report
717	other: L -> Al2Ca + γ	L: Al 0.48, Ca 0.03, Mg 0.49	unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 30 report
717	eutectic: L -> Al4Ca+ (Al)+ β	L: Al 0.642, Ca 0.011, Mg 0.347	model	[1] ISLAM 2005	Table VI, p. 10, row 14 report
715.92	eutectic: L -> Al2Ca + γ + β	L: Al 0.577, Ca 0.011, Mg 0.412	model	[1] ISLAM 2005	Table VI, p. 10, row 13 report
715	eutectic: L -> Al4Ca+ (Al)+ β	L: Al 0.64, Ca 0.02, Mg 0.34	unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 15 report
710.54	eutectic: L -> Mg2Ca + Ca-fcc + Al3Ca8	L: Al 0.032, Ca 0.716, Mg 0.252	model	[1] ISLAM 2005	Table VI, p. 10, row 1 report
706.4	eutectic: L -> γ + Al2Ca + (Mg)	L: Al 0.313, Ca 0.005, Mg 0.682	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 12 report
703.1	eutectic: L -> Mg2Ca + Ca-fcc + Al3Ca8	L: Al 0.049, Ca 0.719, Mg 0.232	unspecified	[1] ISLAM 2005 cites ref. 40	Table VI, p. 10, row 3 report
701.5	eutectic: L -> γ + Al2Ca + (Mg)	L: Al 0.316, Ca 0.012, Mg 0.672	model	[1] ISLAM 2005	Table VI, p. 10, row 10 report
697	eutectic: L -> γ + Al2Ca + (Mg)	L: Al 0.33, Ca 0.02, Mg 0.65	unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 11 report
683	eutectic: L -> Mg2Ca + Ca-fcc + Al3Ca8	L: Al 0.13, Ca 0.68, Mg 0.19	unspecified	[1] ISLAM 2005 cites ref. 5	Table VI, p. 10, row 2 report

Other properties

Phase transition (19)

Phase transition, Al–Ca–Mg system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	443.15 K	443.15	Al2Ca+(Mg)/Al2Ca+(Mg) + γ alloy: Al 0.335395, Ca 0.162075, Mg 0.502531	model	[1] ISLAM 2005	Table VII, p. 11, row 15 report
Phase transition	700.15 K	700.15	Al2Ca+(Mg)+L/(Mg)+ Al2Ca+ γ alloy: Al 0.16337, Ca 0.0282817, Mg 0.808349	model	[1] ISLAM 2005	Table VII, p. 11, row 7 report
Phase transition	704.15 K	704.15	Sample 1 DSC cooling alloy: Al 0.16337, Ca 0.0282817, Mg 0.808349	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 4 report
Phase transition	716.15 K	716.15	Sample 1 DSC heating alloy: Al 0.16337, Ca 0.0282817, Mg 0.808349	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 3 report
Phase transition	718.52 K	718.52	Sample 3 DSC cooling alloy: Al 0.027261, Ca 0.162621, Mg 0.810118	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 16 report
Phase transition	753.15 K	753.15	L/L+Mg2Ca alloy: Al 0.027261, Ca 0.162621, Mg 0.810118	model	[1] ISLAM 2005	Table VII, p. 11, row 19 report
Phase transition	758.15 K	758.15	(Mg)+L/Al2Ca+(Mg)+L alloy: Al 0.16337, Ca 0.0282817, Mg 0.808349	model	[1] ISLAM 2005	Table VII, p. 11, row 6 report
Phase transition	776.15 K	776.15	L+Mg2Ca/L+Mg2Ca+(Mg) alloy: Al 0.027261, Ca 0.162621, Mg 0.810118	model	[1] ISLAM 2005	Table VII, p. 11, row 20 report
Phase transition	777.15 K	777.15	L+ Al2Ca/Al2Ca+(Mg) alloy: Al 0.335395, Ca 0.162075, Mg 0.502531	model	[1] ISLAM 2005	Table VII, p. 11, row 14 report
Phase transition	794.47 K	794.47	Sample 3 DSC cooling alloy: Al 0.027261, Ca 0.162621, Mg 0.810118	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 17 report
Phase transition	796.15 K	796.15	Sample 2 DSC cooling alloy: Al 0.335395, Ca 0.162075, Mg 0.502531	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 10 report
Phase transition	808.15 K	808.15	Sample 2 DSC heating alloy: Al 0.335395, Ca 0.162075, Mg 0.502531	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 9 report
Phase transition	812.15 K	812.15	L/(Mg)+L alloy: Al 0.16337, Ca 0.0282817, Mg 0.808349	model	[1] ISLAM 2005	Table VII, p. 11, row 5 report
Phase transition	823.15 K	823.15	Sample 1 DSC cooling alloy: Al 0.16337, Ca 0.0282817, Mg 0.808349	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 2 report
Phase transition	828.15 K	828.15	Sample 1 DSC heating alloy: Al 0.16337, Ca 0.0282817, Mg 0.808349	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 1 report
Phase transition	843.15 K	843.15	Sample 3 DSC cooling alloy: Al 0.027261, Ca 0.162621, Mg 0.810118	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 18 report
Phase transition	873.15 K	873.15	L+Mg2Ca+(Mg)/Mg2Ca+(Mg)+Al2Ca alloy: Al 0.027261, Ca 0.162621, Mg 0.810118	model	[1] ISLAM 2005	Table VII, p. 11, row 21 report
Phase transition	1015.15 K	1015.15	L/L+ Al2Ca alloy: Al 0.335395, Ca 0.162075, Mg 0.502531	model	[1] ISLAM 2005	Table VII, p. 11, row 13 report
Phase transition	1033.15 K	1033.15	Sample 2 DSC cooling alloy: Al 0.335395, Ca 0.162075, Mg 0.502531	experimental	[1] ISLAM 2005 cites ref. 42	Table VII, p. 11, row 8 report

Sources

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

F. ISLAM, M. MEDRAJ, THERMODYNAMIC MODELLING OF THE Mg-Al-Ca SYSTEM, Canadian Metallurgical Quarterly 44, 523-536 (2005). doi:10.1179/cmq.2005.44.4.523

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}
}