B–Cu system

14 accepted literature values from 2 paper(s) (experimental 13, model 1); 0 calculated phase diagram(s). 7 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · phases (5) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	13
model	1

Accepted values by property group
Property group	Values
invariant reaction	7
phase equilibrium	7

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CuB-09Zha

Invariant reactions (literature)

Invariant reactions reported in the literature for the B–Cu system (7)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location	Quote
1333.15	eutectic: L -> (Cu) + (B)	L: B 0.107	experimental	[1] Wang 2009 cites Lihl 1954	Table 3, p. 4, row 1 report
1294.15	eutectic: L -> (Cu) + (B)	L: B 0.107; (Cu): B 0.0029	experimental	[1] Wang 2009 cites Smiryagin 1965	Table 3, p. 4, row 2 report
1286.15	eutectic: L ↔ (Cu) + (B)		experimental	[1] Wang 2009 cites Rexer 1970	p. 2 report	Rexer and Petzow [18] reported the composition (13.3 at.% B) and the temperature (1013 ◦ C) of the eutectic reaction L ↔ (Cu) + (B).
1286.15	eutectic: L -> (Cu) + (B)	L: B 0.133	experimental	[1] Wang 2009 cites Rexer 1970	Table 3, p. 4, row 4 report
1286.15	eutectic: L -> (Cu) + (B)	L: B 0.133; (Cu): B 0.0029; (B): B 0.97	model	[1] Wang 2009	Table 3, p. 4, row 6 report
1283.15	eutectic: L -> (Cu) + (B)		experimental	[1] Wang 2009 cites Piton 1974	Table 3, p. 4, row 5 report
1281.15	eutectic: L -> (Cu) + (B)	(B): B 0.97	experimental	[1] Wang 2009 cites Wald 1965 doi	Table 3, p. 4, row 3 report

Other properties

Phase equilibrium (7)

Phase equilibrium, B–Cu system
Property	T (K)	Phases / composition	Class	Source	Location
Phase assemblage	1123.15	(Cu) + (B) alloy: B 0.344, Cu 0.656	experimental	[2] Zhang 2009	Table 2, p. 3, row 20 report
Phase assemblage	1123.15	(Cu) + (B) alloy: B 0.1757, Cu 0.8243	experimental	[2] Zhang 2009	Table 2, p. 3, row 15 report
Phase assemblage	1123.15	(Cu) + (B) alloy: B 0.3893, Cu 0.6107	experimental	[2] Zhang 2009	Table 2, p. 3, row 23 report
Phase assemblage	1123.15	(Cu) + (B) alloy: B 0.0983, Cu 0.9017	experimental	[2] Zhang 2009	Table 2, p. 3, row 10 report
Phase assemblage	1123.15	(Cu) + (B) alloy: B 0.0518, Cu 0.9482	experimental	[2] Zhang 2009	Table 2, p. 3, row 1 report
Phase assemblage	1123.15	(Cu) + (B) alloy: B 0.0796, Cu 0.9204	experimental	[2] Zhang 2009	Table 2, p. 3, row 5 report
Phase assemblage	1273.15	(Cu) + (B) alloy: B 0.35, Cu 0.65	experimental	[2] Zhang 2009	Table 2, p. 3, row 19 report

Sources

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

C.P. Wang, S.H. Guo, A.T. Tang, F.S. Pan, X.J. Liu, K. Ishida, Thermodynamic assessments of the Cu–B and Cu–Tm systems, Journal of Alloys and Compounds 482, 67-72 (2009). doi:10.1016/j.jallcom.2009.03.101
Wei-Wei Zhang, Yong Du, Honghui Xu, Wei Xiong, Yi Kong, Weihua Sun et al., Thermodynamic Assessment of the Cu-B System Supported by Key Experiment and First-Principles Calculations, J. Phase Equilib. Diffus. 30, 480-486 (2009). doi:10.1007/s11669-009-9561-7

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}
}