Be–Mo system

10 accepted literature values from 1 paper(s) (model 6, DFT 4); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (8) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
model	6
DFT	4

Accepted values by property group
Property group	Values
formation	10

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
BeMo-07Nak.tdb	K. Nakashima, T. Tokunaga, H. Ohtani, M.Hasebe, J. Japan Inst. Met., 71, 187-89(2007). doi:10.2320/jinstmet.71.187	`75fb8f02c9ac7f20a424ba214136eb5b8bc85ab3fa810c7cbe7199b734985346`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
BeMo-07Nak.tdb	2083.96	BE2MO_C14 (x(Mo) 0.33333) + LIQUID (x(Mo) 0.56896) + BCC_A2 (x(Mo) 0.99112)
BeMo-07Nak.tdb	2083.96	BE2MO_C14 (x(Mo) 0.33333) + LIQUID (x(Mo) 0.569) + BCC_A2 (x(Mo) 0.99112)
BeMo-07Nak.tdb	1943.39	BE12MO_D2B (x(Mo) 0.07692) + LIQUID (x(Mo) 0.11887) + BE2MO_C14 (x(Mo) 0.33333)
BeMo-07Nak.tdb	1943.39	BE12MO_D2B (x(Mo) 0.07692) + LIQUID (x(Mo) 0.11901) + BE2MO_C14 (x(Mo) 0.33333)
BeMo-07Nak.tdb	1558.26	BCC_A2 (x(Mo) 0) + LIQUID (x(Mo) 6.800e-4) + BE12MO_D2B (x(Mo) 0.07692)
BeMo-07Nak.tdb	1554.84	BCC_A2 (x(Mo) 0) + BE22MO (x(Mo) 0.04348) + BE12MO_D2B (x(Mo) 0.07692)
BeMo-07Nak.tdb	1527.01	HCP_A3 (x(Mo) 0) + BCC_A2 (x(Mo) 0) + BE22MO (x(Mo) 0.04348)
BeMo-07Nak.tdb	1175.9	BE2MO_C14 (x(Mo) 0.33333) + BEMO3_A15 (x(Mo) 0.75) + BCC_A2 (x(Mo) 0.99989)
BeMo-07Nak.tdb	1175.9	BE2MO_C14 (x(Mo) 0.33333) + BEMO3_A15 (x(Mo) 0.75) + BCC_A2 (x(Mo) 0.99989)
BeMo-07Nak.tdb	1175.9	BE2MO_C14 (x(Mo) 0.33333) + BEMO3_A15 (x(Mo) 0.75) + BCC_A2 (x(Mo) 0.99989)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Be–Mo system (10)
Phase	Value	Class	Source	Location
Be12Mo	-12.2 kJ/mol (basis unstated)	DFT	[1] Nakashima 2007	Table 1, p. 2, row 11 report
Be12Mo	-10 kJ/mol (basis unstated)	model	[1] Nakashima 2007	Table 1, p. 2, row 12 report
Be22Mo	-5.6 kJ/mol (basis unstated)	model	[1] Nakashima 2007	Table 1, p. 2, row 10 report
Be22Mo	-3.94 kJ/mol (basis unstated)	DFT	[1] Nakashima 2007	Table 1, p. 2, row 9 report
Be2Mo	-31 kJ/mol (basis unstated)	model	[1] Nakashima 2007	Table 1, p. 2, row 14 report
Be2Mo	-29.3 kJ/mol (basis unstated)	DFT	[1] Nakashima 2007	Table 1, p. 2, row 13 report
BeMo (CrB)	-25.2 kJ/mol (basis unstated)	model	[1] Nakashima 2007	Table 3, p. 3, row 2 report
BeMo (CsCl)	19.3 kJ/mol (basis unstated)	model	[1] Nakashima 2007	Table 3, p. 3, row 1 report
BeMo3	-13 kJ/mol (basis unstated)	model	[1] Nakashima 2007	Table 1, p. 2, row 16 report
BeMo3	-0.81 kJ/mol (basis unstated)	DFT	[1] Nakashima 2007	Table 1, p. 2, row 15 report

Sources

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

Kazuyoshi Nakashima, Tatsuya Tokunaga, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Be-Mo Binary Phase Diagram, J. Japan Inst. Metals 71, 187-189 (2007). doi:10.2320/jinstmet.71.187

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}
}