Mg–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
MgH-07Pal.tdb	M. Palumbo, F.J. Torres, J.R. Ares, C. Pisani, J.F. Fernandez, M. Baricco, Calphad, 31, 457-67(2007). doi:10.1016/j.calphad.2007.04.005	`8871b1dc6e5850f79984cd38316758cefba2697ac60c408204c4582ec43d76df`	viewer · TDB · JSON
MgH-99Zen.tdb	K. Zeng, T. Klassen, W. Oelerich, R. Bormann, Int. J. Hydrogen Energy, 24, 989-1004(1999). doi:10.1016/S0360-3199(98)00132-3	`7133dff29673a4f119f1c857d0fdcf297f9f1524b17519bd9681899f27f01f87`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
MgH-07Pal.tdb	922.77	HCP_A3 (x(H) 7.200e-4) + LIQUID (x(H) 0.001) + GAS (x(H) 0.99808)
MgH-07Pal.tdb	561.18	HCP_A3 (x(H) 1.600e-4) + MGH2_C4 (x(H) 0.66667) + GAS (x(H) 1)
MgH-07Pal.tdb	561.18	HCP_A3 (x(H) 1.600e-4) + MGH2_C4 (x(H) 0.66667) + GAS (x(H) 1)
MgH-99Zen.tdb	922.82	HCP_A3 (x(H) 7.200e-4) + LIQUID (x(H) 9.400e-4) + GAS (x(H) 0.99808)
MgH-99Zen.tdb	561.44	HCP_A3 (x(H) 1.600e-4) + MGH2_C4 (x(H) 0.66667) + GAS (x(H) 1)
MgH-99Zen.tdb	561.44	HCP_A3 (x(H) 1.600e-4) + MGH2_C4 (x(H) 0.66667) + GAS (x(H) 1)

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}
}