Na–H system

0 accepted literature values from 0 paper(s); 2 calculated phase diagram(s).

Data: interactive phase diagram · Markdown

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
NaH-06Qiu.tdb	C. Qiu, S.M. Opalka, G.B. Olson, D.L. Anton, Int. J. Mater. Res., 97, 845-53(2006). doi:10.3139/ijmr-2006-0136	`450ff68ec5e0694f451a202fbd4bb1309142c22db1568c7bee198374ac1122d2`	viewer · TDB · JSON
NaH-93Pel.tdb	A.D. Pelton, Z. Metallkd., 84, 767-72(1993). doi:10.1515/ijmr-1993-841107	`efda4119d6909c2f89de204f1c46a5c68f05c4845ba3c304f7cd0d4fbbecff1a`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
NaH-06Qiu.tdb	699.54	LIQUID (x(H) 0.00172) + NAH_B1 (x(H) 0.5) + GAS (x(H) 0.99947)
NaH-06Qiu.tdb	370.87	BCC_A2 (x(H) 0) + LIQUID (x(H) 0) + NAH_B1 (x(H) 0.5)
NaH-93Pel.tdb	676.11	LIQUID (x(H) 0.00164) + NAH_B1 (x(H) 0.5) + GAS (x(H) 0.99971)
NaH-93Pel.tdb	370.87	BCC_A2 (x(H) 0) + LIQUID (x(H) 0) + NAH_B1 (x(H) 0.5)

Please cite

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 data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23736065

Also cite 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; 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). 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_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_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}
}