B–Fe–Nd system

26 accepted literature values from 2 paper(s) (experimental 4, model 15, unspecified 7); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	4
model	15
unspecified	7

Accepted values by property group
Property group	Values
invariant reaction	22
activity / EMF / Gibbs energy	4

Invariant reactions (literature)

Invariant reactions reported in the literature for the B–Fe–Nd system (22)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1684.15	peritectic: L + NdB4 -> T2	L: B 0.29, Fe 0.62, Nd 0.09	model	[1] Hallemans 1995	Table 6, p. 10, row 1 report
1661.15	quasi-peritectic: L + FeB -> NdB4 + Fe2B	L: B 0.32, Fe 0.66, Nd 0.02	model	[1] Hallemans 1995	Table 6, p. 10, row 3 report
1648.15	quasi-peritectic: L + NdB4 -> Fe2B + T2	L: B 0.31, Fe 0.66, Nd 0.03	model	[1] Hallemans 1995	Table 6, p. 10, row 6 report
1618.15	peritectic: L + NdB4 -> T2	L: B 0.4, Fe 0.45, Nd 0.15	experimental	[1] Hallemans 1995 cites Knoch 1994	Table 6, p. 10, row 2 report
1454.15	peritectic: L + γ -> T1	L: B 0.088, Fe 0.732, Nd 0.169	model	[1] Hallemans 1995	Table 6, p. 10, row 9 report
1453.15	peritectic: L + γ -> T1		unspecified	[1] Hallemans 1995 cites ref. 87Tsa	Table 6, p. 10, row 12 report
1453.15	peritectic: L + γ -> T1	L: B 0.08, Fe 0.76, Nd 0.16	unspecified	[1] Hallemans 1995 cites ref. 86Sch	Table 6, p. 10, row 11 report
1443.15	quasi-peritectic: L + γ -> T1 + Fe17Nd2	L: B 0.06, Fe 0.71, Nd 0.23	model	[1] Hallemans 1995	Table 6, p. 10, row 14 report
1428.15	peritectic: L + γ -> T1	L: B 0.07, Fe 0.79, Nd 0.14	experimental	[1] Hallemans 1995 cites Matsuura 1985 doi	Table 6, p. 10, row 10 report
1403.15	quasi-peritectic: L + γ -> T1 + Fe17Nd2	L: B 0.02, Fe 0.66, Nd 0.32	unspecified	[1] Hallemans 1995 cites ref. 86Sch	Table 6, p. 10, row 16 report
1390.15	eutectic: L -> T1 + T2	L: B 0.16, Fe 0.72, Nd 0.12	model	[1] Hallemans 1995	Table 6, p. 10, row 17 report
1388.15	eutectic: L -> T1 + T2	L: B 0.17, Fe 0.73, Nd 0.1	unspecified	[1] Hallemans 1995 cites ref. 86Sch	Table 6, p. 10, row 18 report
1383.15	eutectic: L -> Fe2B + T1	L: B 0.18, Fe 0.75, Nd 0.07	unspecified	[1] Hallemans 1995 cites ref. 86Sch	Table 6, p. 10, row 20 report
1382.15	eutectic: L -> Fe2B + T1	L: B 0.163, Fe 0.764, Nd 0.073	model	[1] Hallemans 1995	Table 6, p. 10, row 19 report
1382.15	eutectic: L -> Fe2B + T1 + T2	L: B 0.163, Fe 0.763, Nd 0.074	model	[1] Hallemans 1995	Table 6, p. 10, row 21 report
1381.15	eutectic: L -> Fe2B + T1 + γ	L: B 0.16, Fe 0.78, Nd 0.06	model	[1] Hallemans 1995	Table 6, p. 10, row 23 report
1378.15	eutectic: L -> Fe2B + T1 + γ	L: B 0.17, Fe 0.76, Nd 0.07	unspecified	[1] Hallemans 1995 cites ref. 86Sch	Table 6, p. 10, row 24 report
1368.15	eutectic: L -> Fe2B + T1 + T2	L: B 0.2, Fe 0.72, Nd 0.08	unspecified	[1] Hallemans 1995 cites ref. 86Sch	Table 6, p. 10, row 22 report
1018.15	quasi-peritectic: L + T3 -> ε + T2		experimental	[1] Hallemans 1995 cites Knoch 1994	Table 6, p. 10, row 27 report
983.15	quasi-peritectic: L + T2 -> ε + T1	L: B 0.02, Fe 0.23, Nd 0.75	experimental	[1] Hallemans 1995 cites EJ 1991	Table 6, p. 10, row 29 report
975.15	quasi-peritectic: L + T3 -> ε + T2	L: B 0.01, Fe 0.22, Nd 0.77	model	[1] Hallemans 1995	Table 6, p. 10, row 25 report
958.15	quasi-peritectic: L + T2 -> ε + T1	L: B 0.01, Fe 0.23, Nd 0.76	model	[1] Hallemans 1995	Table 6, p. 10, row 28 report

Other properties

Activity / EMF / Gibbs energy (4)

Activity / EMF / Gibbs energy, B–Fe–Nd system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Gibbs energy printed: Gibbs Energies of System	-50915.3 J/mol	953	Fe2B + T2 + α-Fe alloy: B 0.18, Fe 0.77, Nd 0.05	model	[2] Zhou 2016	Table III, p. 6, row 4 report
Gibbs energy printed: Gibbs Energies of System	-50245.7 J/mol	953	Fe3B + Fe23Nd2B3 alloy: B 0.18, Fe 0.77, Nd 0.05	model	[2] Zhou 2016	Table III, p. 6, row 1 report
Gibbs energy printed: Gibbs Energies of System	-50492.9 J/mol	953	Fe3B + Fe23Nd2B3 + T2 + α-Fe alloy: B 0.18, Fe 0.77, Nd 0.05	model	[2] Zhou 2016	Table III, p. 6, row 2 report
Gibbs energy printed: Gibbs Energies of System	-50673.8 J/mol	953	Fe3B + T2 + α-Fe alloy: B 0.18, Fe 0.77, Nd 0.05	model	[2] Zhou 2016	Table III, p. 6, row 3 report

Sources

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

B. Hallemans, P. Wollants, J. R. Roos, Thermodynamic assessment of the Fe-Nd-B phase diagram, JPE 16, 137-149 (1995). doi:10.1007/bf02664851
G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016). doi:10.1007/s11664-015-4112-y

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}
}