B–Mn system

61 accepted literature values from 1 paper(s) (experimental 7, model 54); 0 calculated phase diagram(s). 6 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · phases (13) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	7
model	54

Accepted values by property group
Property group	Values
invariant reaction	39
crystal structure	22

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the B–Mn system (39)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2263.15	congruent melting: L ↔ MnB2	MnB2: B 0.667	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 25 report
2163.15	congruent melting: L ↔ MnB	MnB: B 0.5	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 15 report
2163.15	congruent melting: L ↔ MnB	MnB: B 0.5	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 16 report
2163.15	congruent melting: L ↔ MnB	MnB: B 0.5	experimental	[1] Sun 2010 cites Markovskii 1967	Table 4, p. 5, row 14 report
2161.15	congruent melting: L ↔ MnB	MnB: B 0.5	model	[1] Sun 2010	Table 4, p. 5, row 13 report
2107.15	congruent melting: L ↔ MnB2	MnB2: B 0.667	model	[1] Sun 2010	Table 4, p. 5, row 23 report
2100.15	L + MnB ↔ Mn3B4	L: B 0.573; MnB: B 0.5; Mn3B4: B 0.571	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 18 report
2100.15	congruent melting: L ↔ MnB2	MnB2: B 0.667	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 24 report
2079.15	L + MnB ↔ Mn3B4	L: B 0.573; MnB: B 0.5; Mn3B4: B 0.571	model	[1] Sun 2010	Table 4, p. 5, row 17 report
2073.15	L ↔ MnB2 + βB	L: B 0.8; MnB2: B 0.667	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 28 report
2061.15	L ↔ Mn3B4 + MnB2	L: B 0.611; Mn3B4: B 0.571; MnB2: B 0.667	model	[1] Sun 2010	Table 4, p. 5, row 20 report
2023.15	L ↔ Mn3B4 + MnB2	L: B 0.615; Mn3B4: B 0.571; MnB2: B 0.667	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 21 report
2023.15	L + MnB ↔ Mn3B4	MnB: B 0.5; Mn3B4: B 0.571	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 19 report
2003.15	L ↔ MnB2 + βB	L: B 0.8; MnB2: B 0.667; βB: B 1	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 27 report
1977.15	L ↔ MnB2 + βB	L: B 0.77; MnB2: B 0.667; βB: B 0.959	model	[1] Sun 2010	Table 4, p. 5, row 26 report
1903.15	L ↔ Mn3B4 + MnB2	Mn3B4: B 0.571; MnB2: B 0.667	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 22 report
1853.15	congruent melting: L ↔ t-Mn2B	t-Mn2B: B 0.333	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 8 report
1853.15	congruent melting: L ↔ t-Mn2B	t-Mn2B: B 0.333	experimental	[1] Sun 2010 cites Markovskii 1967	Table 4, p. 5, row 6 report
1853.15	congruent melting: L ↔ t-Mn2B	t-Mn2B: B 0.333	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 7 report
1819.15	congruent melting: L ↔ t-Mn2B	t-Mn2B: B 0.333	model	[1] Sun 2010	Table 4, p. 5, row 5 report
1818.15	L ↔ t-Mn2B + MnB	L: B 0.343; t-Mn2B: B 0.333; MnB: B 0.5	model	[1] Sun 2010	Table 4, p. 5, row 9 report
1783.15	L ↔ t-Mn2B + MnB	L: B 0.39; t-Mn2B: B 0.333; MnB: B 0.5	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 11 report
1783.15	L ↔ t-Mn2B + MnB	L: B 0.37; t-Mn2B: B 0.333; MnB: B 0.5	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 12 report
1783.15	L ↔ t-Mn2B + MnB	t-Mn2B: B 0.333; MnB: B 0.5	experimental	[1] Sun 2010 cites Markovskii 1967	Table 4, p. 5, row 10 report
1648.15	MnB4 ↔ MnB2 + βB	MnB4: B 0.8; MnB2: B 0.667; βB: B 1	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 38 report
1648.15	MnB4 ↔ MnB2 + βB	MnB4: B 0.8; MnB2: B 0.667	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 39 report
1648.15	MnB4 ↔ MnB2 + βB	MnB4: B 0.8; MnB2: B 0.667; βB: B 0.965	model	[1] Sun 2010	Table 4, p. 5, row 36 report
1623.15	MnB4 ↔ MnB2 + βB	MnB4: B 0.8; MnB2: B 0.667	experimental	[1] Sun 2010 cites Andersson 1970 doi	Table 4, p. 5, row 37 report
1484.15	L ↔ δMn + t-Mn2B	L: B 0.143; t-Mn2B: B 0.333	experimental	[1] Sun 2010 cites Pradelli 1974	Table 4, p. 5, row 2 report
1484.15	L ↔ δMn + t-Mn2B	L: B 0.143; t-Mn2B: B 0.333	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 4 report
1480.15	L ↔ δMn + t-Mn2B	L: B 0.15; δMn: B 0; t-Mn2B: B 0.333	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 3 report
1477.15	L ↔ δMn + t-Mn2B	L: B 0.089; δMn: B 0; t-Mn2B: B 0.333	model	[1] Sun 2010	Table 4, p. 5, row 1 report
1397.15	o-Mn2B0.982 ↔ γMn + t-Mn2B	o-Mn2B0.982: B 0.329; γMn: B 0; t-Mn2B: B 0.333	model	[1] Sun 2010	Table 4, p. 5, row 29 report
1397.15	o-Mn2B0.982 ↔ γMn + t-Mn2B	t-Mn2B: B 0.333	experimental	[1] Sun 2010 cites Pradelli 1974	Table 4, p. 5, row 30 report
1393.15	o-Mn2B0.982 ↔ γMn + t-Mn2B	o-Mn2B0.982: B 0.25; γMn: B 0; t-Mn2B: B 0.333	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 31 report
1373.15	MnB2 ↔ Mn3B4 + MnB4	MnB2: B 0.667; Mn3B4: B 0.571; MnB4: B 0.8	model	[1] Sun 2010 cites Liao 1986 doi	Table 4, p. 5, row 34 report
1358.15	MnB2 ↔ Mn3B4 + MnB4	MnB2: B 0.667; Mn3B4: B 0.571; MnB4: B 0.8	model	[1] Sun 2010	Table 4, p. 5, row 32 report
1348.15	MnB2 ↔ Mn3B4 + MnB4	MnB2: B 0.667; Mn3B4: B 0.571; MnB4: B 0.8	model	[1] Sun 2010 cites Okamoto 1993 doi	Table 4, p. 5, row 35 report
1323.15	MnB2 ↔ Mn3B4 + MnB4	MnB2: B 0.667; Mn3B4: B 0.571; MnB4: B 0.8	experimental	[1] Sun 2010 cites Andersson 1970 doi	Table 4, p. 5, row 33 report

Other properties

Crystal structure (22)

Crystal structure, B–Mn system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	3.03 Å	298.15	Mn3B4 alloy: Mn 0.428571	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 9 report
Lattice a	14.53 Å	298.15	Mn4B alloy: Mn 0.8	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 14 report
Lattice a	5.56 Å	298.15	MnB alloy: Mn 0.5	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 8 report
Lattice a	3.007 Å	298.15	MnB2 alloy: Mn 0.333333	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 10 report
Lattice a	10.9907 Å	298.15	MnB23 alloy: Mn 0.041667	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 12 report
Lattice a	5.503 Å	298.15	MnB4 alloy: Mn 0.2	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 11 report
Lattice a	14.54 Å	298.15	o-Mn2B0.982 alloy: Mn 0.670691	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 6 report
Lattice a	5.148 Å	298.15	t-Mn2B alloy: Mn 0.666667	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 7 report
Lattice b	12.86 Å	298.15	Mn3B4 alloy: Mn 0.428571	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 9 report
Lattice b	7.293 Å	298.15	Mn4B alloy: Mn 0.8	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 14 report
Lattice b	2.977 Å	298.15	MnB alloy: Mn 0.5	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 8 report
Lattice b	5.369 Å	298.15	MnB4 alloy: Mn 0.2	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 11 report
Lattice b	7.291 Å	298.15	o-Mn2B0.982 alloy: Mn 0.670691	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 6 report
Lattice c	2.96 Å	298.15	Mn3B4 alloy: Mn 0.428571	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 9 report
Lattice c	4.209 Å	298.15	Mn4B alloy: Mn 0.8	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 14 report
Lattice c	4.145 Å	298.15	MnB alloy: Mn 0.5	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 8 report
Lattice c	3.037 Å	298.15	MnB2 alloy: Mn 0.333333	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 10 report
Lattice c	23.9964 Å	298.15	MnB23 alloy: Mn 0.041667	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 12 report
Lattice c	2.949 Å	298.15	MnB4 alloy: Mn 0.2	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 11 report
Lattice c	4.208 Å	298.15	o-Mn2B0.982 alloy: Mn 0.670691	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 6 report
Lattice c	4.208 Å	298.15	t-Mn2B alloy: Mn 0.666667	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 7 report
lattice unspecified axis	122.71 °C	298.15	MnB4 alloy: Mn 0.2	model	[1] Sun 2010 cites Liao 1986 doi	Table 1, p. 2, row 11 report

Sources

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

Weihua Sun, Yong Du, Shuhong Liu, Baiyun Huang, Chao Jiang, Thermodynamic Assessment of the Mn-B System, J. Phase Equilib. Diffus. 31, 357-364 (2010). doi:10.1007/s11669-010-9740-6

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}
}