Ba–Sr system

12 accepted literature values from 1 paper(s) (experimental 12); 2 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 · interactive phase diagram · phases (4) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	12

Accepted values by property group
Property group	Values
mixing / partial	12

Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
BaSr-01Fab-LB.tdb	O. Fabrichnaya, unpublished, 2001.	`6224a455791a1c179950f0b7558e9b57e959b41b73e70e13c811eb6f27f7e1f2`	viewer · TDB · JSON
BaSr-87Alc.tdb	C.B. Alcock, V.P. Itkin, Bull. Alloy Phase Diag., 8, 534-36(1987). doi:10.1007/BF02879429	`d321a835b5ef863c352f2ada30d78842997d7b5131de49712d53f39e3a1500e9`	viewer · TDB · JSON

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull BaSr-87Alc

Other properties

Mixing / partial (12)

Mixing / partial, Ba–Sr system
Property	Value	Phases / composition	Class	Source	Location
Enthalpy of mixing printed: -ΔmixH	-0.238 kJ/mol (basis unstated)	liquid alloy: Ba 0.992, Sr 0.008	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 12 report
Enthalpy of mixing printed: -ΔmixH	-0.36 kJ/mol (basis unstated)	liquid alloy: Ba 0.99745, Sr 0.00255	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 3 report
Enthalpy of mixing printed: -ΔmixH	-0.439 kJ/mol (basis unstated)	liquid alloy: Ba 0.9956, Sr 0.0044	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 6 report
Enthalpy of mixing printed: -ΔmixH	-0.259 kJ/mol (basis unstated)	liquid alloy: Ba 0.9925, Sr 0.0075	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 11 report
Enthalpy of mixing printed: -ΔmixH	-0.406 kJ/mol (basis unstated)	liquid alloy: Ba 0.99655, Sr 0.00345	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 4 report
Enthalpy of mixing printed: -ΔmixH	-0.444 kJ/mol (basis unstated)	liquid alloy: Ba 0.9945, Sr 0.0055	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 8 report
Enthalpy of mixing printed: -ΔmixH	-0.213 kJ/mol (basis unstated)	liquid alloy: Ba 0.9981, Sr 0.0019	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 2 report
Enthalpy of mixing printed: -ΔmixH	-0.155 kJ/mol (basis unstated)	liquid alloy: Ba 0.9989, Sr 0.0011	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 1 report
Enthalpy of mixing printed: -ΔmixH	-0.347 kJ/mol (basis unstated)	liquid alloy: Ba 0.9933, Sr 0.0067	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 10 report
Enthalpy of mixing printed: -ΔmixH	-0.418 kJ/mol (basis unstated)	liquid alloy: Ba 0.99605, Sr 0.00395	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 5 report
Enthalpy of mixing printed: -ΔmixH	-0.439 kJ/mol (basis unstated)	liquid alloy: Ba 0.9949, Sr 0.0051	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 7 report
Enthalpy of mixing printed: -ΔmixH	-0.418 kJ/mol (basis unstated)	liquid alloy: Ba 0.9939, Sr 0.0061	experimental	[1] Alcock 1987 cites ref. 74Pre	Table 2, p. 3, row 9 report

Sources

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

C. B. Alcock, V. P. Itkin, The Ba−Sr (Barium-Strontium) system, Bulletin of Alloy Phase Diagrams 8, 534-536 (1987). doi:10.1007/bf02879429

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-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
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); 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_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@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}
}