Hf–Mn–O system

26 accepted literature values from 1 paper(s) (experimental 26); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	26

Accepted values by property group
Property group	Values
phase equilibrium	23
crystal structure	3

Other properties

Phase equilibrium (23)

Phase equilibrium, Hf–Mn–O system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition		Matrix Matrix: Hf 0.332, Mn 0.668, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 11 report
Phase composition		Matrix + Eutectic + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.535, Mn 0.465, O 0; Eutectic: Hf 0.728, Mn 0.272, O 0; ηHf-Mn: Hf 0.535, Mn 0.465, O 0; η-Hf-Mn(-O): Hf 0.535, Mn 0.465, O 0; Overall: Hf 0.621, Mn 0.379, O 0; η-Hf-Mn: Hf 0.535, Mn 0.465, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 20 report
Phase composition		Matrix + Overall Matrix: Hf 0.325, Mn 0.675, O 0; Overall: Hf 0.328, Mn 0.672, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 10 report
Phase composition		Matrix + Second phase + Eutectic + Overall Matrix: Hf 0.003, Mn 0.997, O 0; Second phase: Hf 0.266, Mn 0.734, O 0; Eutectic: Hf 0.033, Mn 0.967, O 0; Overall: Hf 0.078, Mn 0.922, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 7 report
Phase composition		Matrix + Second phase + Eutectic + Overall Matrix: Hf 0.003, Mn 0.997, O 0; Second phase: Hf 0.23, Mn 0.77, O 0; Eutectic: Hf 0.027, Mn 0.973, O 0; Overall: Hf 0.036, Mn 0.964, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 4 report
Phase composition		Matrix + Second phase + Eutectic + Overall Matrix: Hf 0.002, Mn 0.998, O 0; Second phase: Hf 0.293, Mn 0.707, O 0; Eutectic: Hf 0.05, Mn 0.95, O 0; Overall: Hf 0.013, Mn 0.987, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 1 report
Phase composition		Matrix + Second phase + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.535, Mn 0.465, O 0; Second phase: Hf 0.904, Mn 0.096, O 0; ηHf-Mn: Hf 0.535, Mn 0.465, O 0; η-Hf-Mn(-O): Hf 0.535, Mn 0.465, O 0; Overall: Hf 0.558, Mn 0.442, O 0; η-Hf-Mn: Hf 0.535, Mn 0.465, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 15 report
Phase composition		Matrix + Second phase + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.363, Mn 0.637, O 0; Second phase: Hf 0.541, Mn 0.459, O 0; ηHf-Mn: Hf 0.541, Mn 0.459, O 0; Overall: Hf 0.507, Mn 0.493, O 0; η-Hf-Mn: Hf 0.516, Mn 0.484, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 12 report
Phase composition		Matrix + Second phase + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.535, Mn 0.465, O 0; Second phase: Hf 0.887, Mn 0.113, O 0; ηHf-Mn: Hf 0.535, Mn 0.465, O 0; η-Hf-Mn(-O): Hf 0.535, Mn 0.465, O 0; Overall: Hf 0.64, Mn 0.36, O 0; η-Hf-Mn: Hf 0.535, Mn 0.465, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 18 report
Phase composition		Matrix + ηHf-Mn-O + η-Hf-Mn(-O) + η-Hf-Mn Matrix: Hf 0.332, Mn 0.668, O 0; ηHf-Mn-O: Hf 0.516, Mn 0.429, O 0.055; η-Hf-Mn(-O): Hf 0.516, Mn 0.429, O 0.055; η-Hf-Mn: Hf 0.516, Mn 0.429, O 0.055	experimental	[1] Brož 2024	Table 4a, p. 9, row 16 report
Phase composition		ηHf-Mn-O + η-Hf-Mn(-O) + η-Hf-Mn ηHf-Mn-O: Hf 0.516, Mn 0.422, O 0.062; η-Hf-Mn(-O): Hf 0.516, Mn 0.422, O 0.062; η-Hf-Mn: Hf 0.516, Mn 0.422, O 0.062	experimental	[1] Brož 2024	Table 4a, p. 9, row 23 report
Phase composition	973.15	Matrix + Eutectic + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.536, Mn 0.464, O 0; Eutectic: Hf 0.702, Mn 0.298, O 0; ηHf-Mn: Hf 0.545, Mn 0.455, O 0; η-Hf-Mn(-O): Hf 0.545, Mn 0.455, O 0; Overall: Hf 0.617, Mn 0.383, O 0; η-Hf-Mn: Hf 0.545, Mn 0.455, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 22 report
Phase composition	973.15	Matrix + Second phase + Overall Matrix: Hf 0.002, Mn 0.998, O 0; Second phase: Hf 0.247, Mn 0.753, O 0; Overall: Hf 0.055, Mn 0.945, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 6 report
Phase composition	973.15	Matrix + Second phase + Overall Matrix: Hf 0.003, Mn 0.997, O 0; Second phase: Hf 0.246, Mn 0.754, O 0; Overall: Hf 0.016, Mn 0.984, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 3 report
Phase composition	973.15	Matrix + Second phase + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.534, Mn 0.466, O 0; Second phase: Hf 0.927, Mn 0.073, O 0; ηHf-Mn: Hf 0.534, Mn 0.466, O 0; η-Hf-Mn(-O): Hf 0.534, Mn 0.466, O 0; Overall: Hf 0.495, Mn 0.505, O 0; η-Hf-Mn: Hf 0.534, Mn 0.466, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 14 report
Phase composition	973.15	Matrix + Second phase + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.002, Mn 0.998, O 0; Second phase: Hf 0.25, Mn 0.75, O 0; ηHf-Mn: Hf 0.67, Mn 0.33, O 0; η-Hf-Mn(-O): Hf 0.67, Mn 0.33, O 0; Overall: Hf 0.044, Mn 0.956, O 0; η-Hf-Mn: Hf 0.67, Mn 0.33, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 9 report
Phase composition	1173.15	Matrix + Eutectic + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.537, Mn 0.463, O 0; Eutectic: Hf 0.703, Mn 0.297, O 0; ηHf-Mn: Hf 0.537, Mn 0.463, O 0; η-Hf-Mn(-O): Hf 0.537, Mn 0.463, O 0; Overall: Hf 0.621, Mn 0.379, O 0; η-Hf-Mn: Hf 0.537, Mn 0.463, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 21 report
Phase composition	1173.15	Matrix + Second phase Matrix: Hf 0.003, Mn 0.997, O 0; Second phase: Hf 0.249, Mn 0.751, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 2 report
Phase composition	1173.15	Matrix + Second phase + Overall Matrix: Hf 0.002, Mn 0.998, O 0; Second phase: Hf 0.254, Mn 0.746, O 0; Overall: Hf 0.04, Mn 0.96, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 5 report
Phase composition	1173.15	Matrix + Second phase + Overall Matrix: Hf 0.003, Mn 0.997, O 0; Second phase: Hf 0.243, Mn 0.757, O 0; Overall: Hf 0.052, Mn 0.948, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 8 report
Phase composition	1173.15	Matrix + Second phase + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.524, Mn 0.476, O 0; Second phase: Hf 0.988, Mn 0.012, O 0; ηHf-Mn: Hf 0.524, Mn 0.476, O 0; η-Hf-Mn(-O): Hf 0.524, Mn 0.476, O 0; Overall: Hf 0.638, Mn 0.362, O 0; η-Hf-Mn: Hf 0.524, Mn 0.476, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 19 report
Phase composition	1173.15	Matrix + Second phase + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.535, Mn 0.464, O 0.001; Second phase: Hf 0.907, Mn 0.093, O 0; ηHf-Mn: Hf 0.535, Mn 0.464, O 0.001; η-Hf-Mn(-O): Hf 0.535, Mn 0.464, O 0.001; Overall: Hf 0.5, Mn 0.5, O 0; η-Hf-Mn: Hf 0.535, Mn 0.464, O 0.001	experimental	[1] Brož 2024	Table 4a, p. 9, row 13 report
Phase composition	1173.15	Matrix + Second phase + ηHf-Mn + η-Hf-Mn(-O) + Overall + η-Hf-Mn Matrix: Hf 0.526, Mn 0.474, O 0; Second phase: Hf 0.946, Mn 0.054, O 0; ηHf-Mn: Hf 0.526, Mn 0.474, O 0; η-Hf-Mn(-O): Hf 0.526, Mn 0.474, O 0; Overall: Hf 0.523, Mn 0.477, O 0; η-Hf-Mn: Hf 0.526, Mn 0.474, O 0	experimental	[1] Brož 2024	Table 4a, p. 9, row 17 report

Crystal structure (3)

Crystal structure, Hf–Mn–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	1.17935 not_printed ± 3.000e-5	300	Hf3+xMn3-xOy alloy: Hf 0.516, Mn 0.429, O 0.055	experimental	[1] Brož 2024	Table 2, p. 4, row 2 report
Lattice b	1.17935 not_printed ± 3.000e-5	300	Hf3+xMn3-xOy alloy: Hf 0.516, Mn 0.429, O 0.055	experimental	[1] Brož 2024	Table 2, p. 4, row 2 report
Lattice c	1.17935 not_printed ± 3.000e-5	300	Hf3+xMn3-xOy alloy: Hf 0.516, Mn 0.429, O 0.055	experimental	[1] Brož 2024	Table 2, p. 4, row 2 report

Sources

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

Pavel Brož, Xinlin Yan, Vitaliy Romaka, Olga Fabrichnaya, Mario J. Kriegel, Vilma Buršíková et al., Constitution, physical properties and thermodynamic modeling of the Hf-Mn system, Journal of Alloys and Compounds 976, 173060 (2024). doi:10.1016/j.jallcom.2023.173060

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 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_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}
}