La–Mn system

43 accepted literature values from 2 paper(s) (experimental 34, model 4, unspecified 5); 2 calculated phase diagram(s). 2 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (7) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	34
model	4
unspecified	5

Accepted values by property group
Property group	Values
invariant reaction	23
phase transition	17
phase equilibrium	3

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
LaMn-12Wan.tdb	Y. Wang, B. Hu, S. Liu, Y. Du, J. Mining Metall. B, 48, 391-94(2012). doi:10.2298/JMMB120717049W	`7161f70fb98ae05289a08fd2e9e5ba4e68ddde81d4fd3109c16b61e23e28e918`	viewer · TDB · JSON
LaMn-16Zhu.tdb	C. Zhu, S. Lin, J. Wang, M. Rong, G. Rao, H. Zhou, Mater. Sci. Forum, 850, 21-26(2016).	`222466a058a17a942f756e520530eb4fb84f0fca50e186660ce74e49744a98a0`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
LaMn-12Wan.tdb	1410.97	LIQUID (x(Mn) 0.86648) + BCC_A2 (x(Mn) 0.99994) + FCC_A1 (x(Mn) 0.99995)
LaMn-12Wan.tdb	1410.97	LIQUID (x(Mn) 0.86667) + BCC_A2 (x(Mn) 0.99994) + FCC_A1 (x(Mn) 0.99995)
LaMn-12Wan.tdb	1359.62	LIQUID (x(Mn) 0.69984) + FCC_A1 (x(Mn) 0.99995) + CUB_A13 (x(Mn) 1)
LaMn-12Wan.tdb	1359.62	LIQUID (x(Mn) 0.70002) + FCC_A1 (x(Mn) 0.99995) + CUB_A13 (x(Mn) 1)
LaMn-12Wan.tdb	1193	BCC_A2 (x(Mn) 0) + LIQUID (x(Mn) 0) + CUB_A13 (x(Mn) 1)
LaMn-12Wan.tdb	1134	FCC_A1 (x(Mn) 0) + BCC_A2 (x(Mn) 0) + LIQUID (x(Mn) 0.03201)
LaMn-12Wan.tdb	980	LIQUID (x(Mn) 0.16529) + CBCC_A12 (x(Mn) 1) + CUB_A13 (x(Mn) 1)
LaMn-12Wan.tdb	980	LIQUID (x(Mn) 0.16501) + CUB_A13 (x(Mn) 1) + CBCC_A12 (x(Mn) 1)
LaMn-12Wan.tdb	972.01	FCC_A1 (x(Mn) 0) + LIQUID (x(Mn) 0.15992) + CBCC_A12 (x(Mn) 1)
LaMn-12Wan.tdb	972.01	FCC_A1 (x(Mn) 0) + LIQUID (x(Mn) 0.15989) + CBCC_A12 (x(Mn) 1)
LaMn-12Wan.tdb	550	DHCP (x(Mn) 0) + FCC_A1 (x(Mn) 0) + CBCC_A12 (x(Mn) 1)
LaMn-16Zhu.tdb	1410.97	LIQUID (x(Mn) 0.86421) + BCC_A2 (x(Mn) 0.99994) + FCC_A1 (x(Mn) 0.99995)
LaMn-16Zhu.tdb	1410.97	LIQUID (x(Mn) 0.86435) + BCC_A2 (x(Mn) 0.99994) + FCC_A1 (x(Mn) 0.99995)
LaMn-16Zhu.tdb	1410.97	LIQUID (x(Mn) 0.86429) + BCC_A2 (x(Mn) 0.99994) + FCC_A1 (x(Mn) 0.99995)
LaMn-16Zhu.tdb	1360.29	LIQUID (x(Mn) 0.70344) + CUB_A13 (x(Mn) 0.99991) + FCC_A1 (x(Mn) 0.99995)
LaMn-16Zhu.tdb	1360.29	LIQUID (x(Mn) 0.70342) + CUB_A13 (x(Mn) 0.99991) + FCC_A1 (x(Mn) 0.99995)
LaMn-16Zhu.tdb	1360.29	LIQUID (x(Mn) 0.70352) + CUB_A13 (x(Mn) 0.99991) + FCC_A1 (x(Mn) 0.99995)
LaMn-16Zhu.tdb	1134	FCC_A1 (x(Mn) 0) + BCC_A2 (x(Mn) 0) + LIQUID (x(Mn) 0.03308)
LaMn-16Zhu.tdb	1030.25	LIQUID (x(Mn) 0.19069) + CBCC_A12 (x(Mn) 0.98623) + CUB_A13 (x(Mn) 0.99998)
LaMn-16Zhu.tdb	1030.25	LIQUID (x(Mn) 0.1907) + CBCC_A12 (x(Mn) 0.98623) + CUB_A13 (x(Mn) 0.99998)
LaMn-16Zhu.tdb	994.31	FCC_A1 (x(Mn) 1.000e-5) + LIQUID (x(Mn) 0.16037) + CBCC_A12 (x(Mn) 0.9874)
LaMn-16Zhu.tdb	994.31	FCC_A1 (x(Mn) 1.000e-5) + LIQUID (x(Mn) 0.16036) + CBCC_A12 (x(Mn) 0.9874)
LaMn-16Zhu.tdb	550	FCC_A1 (x(Mn) 0) + DHCP (x(Mn) 0) + CBCC_A12 (x(Mn) 0.99968)
LaMn-16Zhu.tdb	550	DHCP (x(Mn) 0) + FCC_A1 (x(Mn) 0) + CBCC_A12 (x(Mn) 0.99968)
LaMn-16Zhu.tdb	550	DHCP (x(Mn) 0) + FCC_A1 (x(Mn) 0) + CBCC_A12 (x(Mn) 0.99968)
LaMn-16Zhu.tdb	550	FCC_A1 (x(Mn) 0) + DHCP (x(Mn) 0) + CBCC_A12 (x(Mn) 0.99968)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull LaMn-12Wan

Invariant reactions (literature)

Invariant reactions reported in the literature for the La–Mn system (23)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location	Quote
1411.05	(δMn) ↔ (γMn), Liquid	(δMn): Mn 1; (γMn): Mn 1	experimental	[1] Wang 2012 cites This	Table 2, p. 4, row 1 report
1411	peritectic: δ-Mn->γ-Mn+L	δ-Mn: Mn 0.999; γ-Mn: Mn 0.999; L: Mn 0.864	unspecified	[2] Zhu 2016	Table 3, p. 5, row 2 report
1410.9	peritectic: δ-Mn->γ-Mn+L	δ-Mn: Mn 1; γ-Mn: Mn 1	experimental	[2] Zhu 2016 cites Massalski 1986	Table 3, p. 5, row 1 report
1360.3	peritectic: γ-Mn->β-Mn+L	γ-Mn: Mn 0.999; β-Mn: Mn 0.999; L: Mn 0.703	unspecified	[2] Zhu 2016	Table 3, p. 5, row 4 report
1359.95	(γMn) ↔ (βMn), Liquid	(γMn): Mn 1; (βMn): Mn 1	experimental	[1] Wang 2012 cites This	Table 2, p. 4, row 3 report
1359.85	(γMn) ↔ (βMn), Liquid	(γMn): Mn 0.999; (βMn): Mn 0.999; Liquid: Mn 0.701	model	[1] Wang 2012	Table 2, p. 4, row 4 report
1359.8	peritectic: γ-Mn->β-Mn+L	γ-Mn: Mn 1; β-Mn: Mn 1	experimental	[2] Zhu 2016 cites Massalski 1986	Table 3, p. 5, row 3 report
1354.15	monotectic: Liquid#2 ↔ Liquid#1 + (βMn)		experimental	[1] Wang 2012 cites Rolla 1942	p. 1 report	According to the work of Rolla and Iandelli [8], the monotectic reaction Liquid#2 ↔ Liquid#1 + (βMn) was determined to occur at 1081 °C with the compositions of 38 wt.% Mn and 74 wt.% Mn.
1134.05	(γLa) ↔ (βLa), Liquid	(γLa): Mn 0; (βLa): Mn 0	experimental	[1] Wang 2012 cites This	Table 2, p. 4, row 5 report
1134	peritectic: γ-La->β-La+L	γ-La: Mn 0.033; β-La: Mn 0; L: Mn 0	unspecified	[2] Zhu 2016	Table 3, p. 5, row 6 report
1133.95	(γLa) ↔ (βLa), Liquid	(γLa): Mn 0; (βLa): Mn 0.032; Liquid: Mn 0	model	[1] Wang 2012	Table 2, p. 4, row 6 report
1133.9	peritectic: γ-La->β-La+L	γ-La: Mn 0; β-La: Mn 0	experimental	[2] Zhu 2016 cites Massalski 1986	Table 3, p. 5, row 5 report
1030.3	peritectic: β-Mn->α-Mn+L	β-Mn: Mn 1; α-Mn: Mn 0.988; L: Mn 0.189	unspecified	[2] Zhu 2016	Table 3, p. 5, row 9 report
1030.2	peritectic: β-Mn->α-Mn+L		experimental	[2] Zhu 2016	Table 3, p. 5, row 8 report
995.1	eutectic: L->β-La+α-Mn		experimental	[2] Zhu 2016	Table 3, p. 5, row 11 report
994.3	eutectic: L->β-La+α-Mn	L: Mn 0.16; β-La: Mn 0; α-Mn: Mn 0.987	unspecified	[2] Zhu 2016	Table 3, p. 5, row 12 report
980.05	(βMn) ↔ (αMn), Liquid	(βMn): Mn 1; (αMn): Mn 1	experimental	[1] Wang 2012 cites This	Table 2, p. 4, row 7 report
979.9	peritectic: β-Mn->α-Mn+L	β-Mn: Mn 1; α-Mn: Mn 1	experimental	[2] Zhu 2016 cites King 1981 doi	Table 3, p. 5, row 7 report
979.35	(βMn) ↔ (αMn), Liquid	(βMn): Mn 0.999; (αMn): Mn 1; Liquid: Mn 0.165	model	[1] Wang 2012	Table 2, p. 4, row 8 report
974.15	Liquid ↔ (βLa) + (αMn)	Liquid: Mn 0.16; (βLa): Mn 0; (αMn): Mn 1	experimental	[1] Wang 2012 cites Rolla 1942 doi	Table 2, p. 4, row 9 report
974.15	eutectic: Liquid#2 ↔ (αLa) + (αMn)		experimental	[1] Wang 2012 cites Rolla 1942	p. 1 report	The eutectic reaction Liquid#2 ↔ (αLa) + (αMn) was determined to be at 701 °C with the eutectic composition of 7.5 wt.% Mn.
974	eutectic: L->β-La+α-Mn	L: Mn 0.16; β-La: Mn 0; α-Mn: Mn 1	experimental	[2] Zhu 2016 cites Rolla 1942 doi	Table 3, p. 5, row 10 report
972.05	Liquid ↔ (βLa) + (αMn)	Liquid: Mn 0.17; (βLa): Mn 0; (αMn): Mn 1	model	[1] Wang 2012	Table 2, p. 4, row 10 report

Other properties

Phase transition (17)

Phase transition, La–Mn system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	991.1 K	991.1	Mn10La90 alloy: La 0.9, Mn 0.1	experimental	[2] Zhu 2016	Table 1, p. 4, row 2 report
Phase transition	991.9 K	991.9	Mn5La95 alloy: La 0.95, Mn 0.05	experimental	[2] Zhu 2016	Table 1, p. 4, row 1 report
Phase transition	992.4 K	992.4	Mn20La80 alloy: La 0.8, Mn 0.2	experimental	[2] Zhu 2016	Table 1, p. 4, row 4 report
Phase transition	995 K	995	Mn25La75 alloy: La 0.75, Mn 0.25	experimental	[2] Zhu 2016	Table 1, p. 4, row 5 report
Phase transition	995.6 K	995.6	Mn76La24 alloy: La 0.24, Mn 0.76	experimental	[2] Zhu 2016	Table 1, p. 4, row 15 report
Phase transition	995.6 K	995.6	Mn80La20 alloy: La 0.2, Mn 0.8	experimental	[2] Zhu 2016	Table 1, p. 4, row 17 report
Phase transition	995.7 K	995.7	Mn45La55 alloy: La 0.55, Mn 0.45	experimental	[2] Zhu 2016	Table 1, p. 4, row 7 report
Phase transition	996.3 K	996.3	Mn35La65 alloy: La 0.65, Mn 0.35	experimental	[2] Zhu 2016	Table 1, p. 4, row 6 report
Phase transition	996.7 K	996.7	Mn95La5 alloy: La 0.05, Mn 0.95	experimental	[2] Zhu 2016	Table 1, p. 4, row 19 report
Phase transition	996.9 K	996.9	Mn60La40 alloy: La 0.4, Mn 0.6	experimental	[2] Zhu 2016	Table 1, p. 4, row 9 report
Phase transition	997.8 K	997.8	Mn66La34 alloy: La 0.34, Mn 0.66	experimental	[2] Zhu 2016	Table 1, p. 4, row 12 report
Phase transition	1017.9 K	1017.9	Mn95La5 alloy: La 0.05, Mn 0.95	experimental	[2] Zhu 2016	Table 1, p. 4, row 20 report
Phase transition	1020.9 K	1020.9	Mn80La20 alloy: La 0.2, Mn 0.8	experimental	[2] Zhu 2016	Table 1, p. 4, row 18 report
Phase transition	1033.9 K	1033.9	Mn76La24 alloy: La 0.24, Mn 0.76	experimental	[2] Zhu 2016	Table 1, p. 4, row 16 report
Phase transition	1036.9 K	1036.9	Mn45La55 alloy: La 0.55, Mn 0.45	experimental	[2] Zhu 2016	Table 1, p. 4, row 8 report
Phase transition	1037.3 K	1037.3	Mn60La40 alloy: La 0.4, Mn 0.6	experimental	[2] Zhu 2016	Table 1, p. 4, row 10 report
Phase transition	1037.5 K	1037.5	Mn66La34 alloy: La 0.34, Mn 0.66	experimental	[2] Zhu 2016	Table 1, p. 4, row 13 report

Phase equilibrium (3)

Phase equilibrium, La–Mn system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	1067.6	other: Mn10La90 liquid: La 0.9, Mn 0.1	experimental	[2] Zhu 2016	Table 1, p. 4, row 3 report
Phase composition	1332.7	other: Mn60La40 liquid: La 0.4, Mn 0.6	experimental	[2] Zhu 2016	Table 1, p. 4, row 11 report
Phase composition	1343.3	other: Mn66La34 liquid: La 0.34, Mn 0.66	experimental	[2] Zhu 2016	Table 1, p. 4, row 14 report

Sources

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

Y. Wang, B. Hu, S. Liu, Y. Du, Thermodynamic reassessment of the La-Mn system, J min metall B Metall 48, 391-394 (2012). doi:10.2298/jmmb120717049w
Chao Fan Zhu, Shi Dong Lin, Jiang Wang, Mao Hua Rong, Guang Hui Rao, Huai Ying Zhou, Thermodynamic Re-Assessment of the Mn-La Binary System, MSF 850, 21-26 (2016). doi:10.4028/www.scientific.net/msf.850.21

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-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
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); 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_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_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}
}