Al–Ca–Ti system

12 accepted literature values from 1 paper(s) (experimental 10, model 2); 0 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 · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	10
model	2

Accepted values by property group
Property group	Values
phase transition	2
phase equilibrium	10

Other properties

Phase transition (2)

Phase transition, Al–Ca–Ti system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1573.15 K	1573.15	congruent transformation	model	[1] Hampl 2015	p. 9 report	For this choice the Al20CaTi2 phase is almost congruently melting at 1300 °C.
Phase transition	2503.15 K	2503.15	congruent transformation	model	[1] Hampl 2015	p. 9 report	However, the consequence of this extreme choice for the Gibbs energy of formation of Al20CaTi2, (-31000 ? 2T) J/mol-at., is the generation of a very large liquidus surface (primary crystallization field) of Al20CaTi2 with a congruent melting point of Al20CaTi2 at 2230 °C.

Phase equilibrium (10)

Phase equilibrium, Al–Ca–Ti system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	823.15	Al2Ca Al2Ca: Al 0.721, Ca 0.278, Ti 0.001	experimental	[1] Hampl 2015	Table 4, p. 7, row 2 report
Phase composition	823.15	Al2Ca Al2Ca: Al 0.726, Ca 0.273, Ti 0.001	experimental	[1] Hampl 2015	Table 4, p. 7, row 7 report
Phase composition	823.15	Al2Ca Al2Ca: Al 0.722, Ca 0.278, Ti 0	experimental	[1] Hampl 2015	Table 4, p. 7, row 1 report
Phase composition	823.15	Al2Ti(η) Al2Ti(η): Al 0.673, Ca 0.005, Ti 0.322	experimental	[1] Hampl 2015	Table 4, p. 7, row 4 report
Phase composition	823.15	Al3Ti(ε) Al3Ti(ε): Al 0.719, Ca 0.01, Ti 0.271	experimental	[1] Hampl 2015	Table 4, p. 7, row 3 report
Phase composition	823.15	Al3Ti(ε) Al3Ti(ε): Al 0.736, Ca 0.005, Ti 0.259	experimental	[1] Hampl 2015	Table 4, p. 7, row 9 report
Phase composition	823.15	AlTi(γ) AlTi(γ): Al 0.591, Ca 0.009, Ti 0.4	experimental	[1] Hampl 2015	Table 4, p. 7, row 10 report
Phase composition	823.15	AlTi(γ) AlTi(γ): Al 0.542, Ca 0.023, Ti 0.434	experimental	[1] Hampl 2015	Table 4, p. 7, row 5 report
Phase composition	823.15	AlTi(γ) AlTi(γ): Al 0.599, Ca 0.006, Ti 0.395	experimental	[1] Hampl 2015	Table 4, p. 7, row 6 report
Phase composition	823.15	αTi αTi: Al 0.022, Ca 0.009, Ti 0.969	experimental	[1] Hampl 2015	Table 4, p. 7, row 11 report

Sources

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

Milan Hampl, Rainer Schmid-Fetzer, Experimental investigation and thermodynamic assessment of the Al–Ca–Ti system, J Mater Sci 50, 5822-5832 (2015). doi:10.1007/s10853-015-9130-x

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}
}