C–Si system

11 accepted literature values from 2 paper(s) (experimental 2, model 6, unspecified 3); 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 · phases (8) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	2
model	6
unspecified	3

Accepted values by property group
Property group	Values
invariant reaction	2
heat capacity / entropy / enthalpy	9

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull SiC-17Lia · CALPHAD hull SiC-91Lac · CALPHAD hull SiC-96Gro-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the C–Si system (2)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location	Quote
3096.4	peritectic: Liquid + graphite -> SiC	Liquid: Si 0.826; graphite: Si 0; SiC: Si 0.5	model	[1] (ed.) 1998	Table I, p. 149, row 2 report
1687	other: Liquid -> diamond + SiC	Liquid: Si 1; diamond: Si 1; SiC: Si 0.5	model	[1] (ed.) 1998	Table I, p. 149, row 1 report

Other properties

Heat capacity / entropy / enthalpy (9)

Heat capacity / entropy / enthalpy, C–Si system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Entropy printed: S°298K	8.5 J/mol-atom/K	298.15	SiC alloy: Si 0.5	model	[2] Liang 2017	Table 5, p. 8, row 28 report
Entropy printed: S°298K	8.25 J/mol-atom/K ± 0.1	298.15	SiC alloy: Si 0.5	unspecified	[2] Liang 2017 cites Kubaschewski 1993	Table 5, p. 8, row 24 report
Entropy printed: S°298K	8.35 J/mol-atom/K	298.15	SiC alloy: Si 0.5	model	[2] Liang 2017 cites Paek 2014 doi	Table 5, p. 8, row 27 report
Entropy printed: S°298K	8.3 J/mol-atom/K	298.15	SiC alloy: Si 0.5	model	[2] Liang 2017 cites Lacaze 1991 doi	Table 5, p. 8, row 25 report
Entropy printed: S°298K	8.45 J/mol-atom/K	298.15	SiC alloy: Si 0.5	model	[2] Liang 2017 cites Gro 1996	Table 5, p. 8, row 26 report
Entropy printed: S°298K	8.24 J/mol-atom/K ± 0.04	298.15	αSiC(Hex) alloy: Si 0.5	experimental	[2] Liang 2017 cites Humphrey 1952	Table 5, p. 8, row 15 report
Entropy printed: S°298K	8.2425 J/mol-atom/K ± 0.065	298.15	αSiC(Hex) alloy: Si 0.5	unspecified	[2] Liang 2017 cites Chase 1998	Table 5, p. 8, row 22 report
Entropy printed: S°298K	8.305 J/mol-atom/K ± 0.04	298.15	βSiC(Cubic) alloy: Si 0.5	experimental	[2] Liang 2017 cites Humphrey 1952	Table 5, p. 8, row 16 report
Entropy printed: S°298K	8.305 J/mol-atom/K ± 0.065	298.15	βSiC(Cubic) alloy: Si 0.5	unspecified	[2] Liang 2017 cites Chase 1998	Table 5, p. 8, row 23 report

Sources

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

I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8.
Song-Mao Liang, Martin Drüe, Artem Kozlov, Markus Rettenmayr, Rainer Schmid-Fetzer, Key experiments and challenging thermodynamic modeling of the Li-Si-C system, Journal of Alloys and Compounds 698, 743-753 (2017). doi:10.1016/j.jallcom.2016.12.271

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}
}