Mn–Sm system

22 accepted literature values from 3 paper(s) (experimental 14, model 8); 2 calculated phase diagram(s). 3 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 (9) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	14
model	8

Accepted values by property group
Property group	Values
invariant reaction	19
formation	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
MnSm-09Wan.tdb	C.P. Wang, H.L. Zhang, S.L. Wang, Z. Lin, X.J. Liu, A.T. Tang, F.S. Pan, J. Alloys Compd., 481, 291-95(2009). doi:10.1016/j.jallcom.2009.03.121	`47864add5c99ef020901a6c284fb7083acb7bb772985a1669b9611328fb38296`	viewer · TDB · JSON
MnSm-24Ye.tdb	H. Ye, J. Wang, Q. Chen, G. Rao, H. Zhou, Mater. Genome Eng. Adv., 2, 39(2024). doi:10.1002/mgea.39	`8d057a826e346331d07207f68022a11d6ee72303a93510a67ed9e9fc02003031`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
MnSm-09Wan.tdb	1410.93	FCC_A1 (x(Sm) 6.000e-5) + BCC_A2 (x(Sm) 7.000e-5) + LIQUID (x(Sm) 0.21872)
MnSm-09Wan.tdb	1410.93	FCC_A1 (x(Sm) 6.000e-5) + BCC_A2 (x(Sm) 7.000e-5) + LIQUID (x(Sm) 0.21866)
MnSm-09Wan.tdb	1410.93	FCC_A1 (x(Sm) 6.000e-5) + BCC_A2 (x(Sm) 7.000e-5) + LIQUID (x(Sm) 0.2187)
MnSm-09Wan.tdb	1369.17	FCC_A1 (x(Sm) 6.000e-5) + CUB_A13 (x(Sm) 0.00135) + LIQUID (x(Sm) 0.30927)
MnSm-09Wan.tdb	1369.17	FCC_A1 (x(Sm) 6.000e-5) + CUB_A13 (x(Sm) 0.00135) + LIQUID (x(Sm) 0.30926)
MnSm-09Wan.tdb	1299.32	CUB_A13 (x(Sm) 0.0012) + MN23SM6_D8A (x(Sm) 0.207) + LIQUID (x(Sm) 0.39474)
MnSm-09Wan.tdb	1299.32	CUB_A13 (x(Sm) 0.0012) + MN23SM6_D8A (x(Sm) 0.207) + LIQUID (x(Sm) 0.39458)
MnSm-09Wan.tdb	1201.47	MN23SM6_D8A (x(Sm) 0.207) + MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.52663)
MnSm-09Wan.tdb	1201.47	MN23SM6_D8A (x(Sm) 0.207) + MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.52687)
MnSm-09Wan.tdb	1201.47	MN23SM6_D8A (x(Sm) 0.207) + MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.52633)
MnSm-09Wan.tdb	1195	LIQUID (x(Sm) 0.82985) + BCC_A2 (x(Sm) 0.99998) + HCP_A3 (x(Sm) 0.99998)
MnSm-09Wan.tdb	1195	LIQUID (x(Sm) 0.83004) + HCP_A3 (x(Sm) 0.99998) + BCC_A2 (x(Sm) 0.99998)
MnSm-09Wan.tdb	1082.03	MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.67823) + HCP_A3 (x(Sm) 0.99999)
MnSm-09Wan.tdb	1082.03	MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.67831) + HCP_A3 (x(Sm) 0.99999)
MnSm-09Wan.tdb	1006.98	MN2SM_C14 (x(Sm) 0.33333) + HCP_A3 (x(Sm) 1) + RHOMB_C19 (x(Sm) 1)
MnSm-09Wan.tdb	979.65	CBCC_A12 (x(Sm) 2.000e-5) + CUB_A13 (x(Sm) 1.200e-4) + MN23SM6_D8A (x(Sm) 0.207)
MnSm-09Wan.tdb	979.65	CBCC_A12 (x(Sm) 2.000e-5) + CUB_A13 (x(Sm) 1.200e-4) + MN23SM6_D8A (x(Sm) 0.207)
MnSm-09Wan.tdb	351.7	MN23SM6_D8A (x(Sm) 0.207) + MN2SM_C14 (x(Sm) 0.33333) + RHOMB_C19 (x(Sm) 1)
MnSm-24Ye.tdb	1409.27	FCC_A1 (x(Sm) 9.000e-5) + BCC_A2 (x(Sm) 2.900e-4) + LIQUID (x(Sm) 0.14407)
MnSm-24Ye.tdb	1409.27	FCC_A1 (x(Sm) 9.000e-5) + BCC_A2 (x(Sm) 2.900e-4) + LIQUID (x(Sm) 0.14395)
MnSm-24Ye.tdb	1409.27	FCC_A1 (x(Sm) 9.000e-5) + BCC_A2 (x(Sm) 2.900e-4) + LIQUID (x(Sm) 0.14391)
MnSm-24Ye.tdb	1360.84	FCC_A1 (x(Sm) 8.000e-5) + CUB_A13 (x(Sm) 2.000e-4) + LIQUID (x(Sm) 0.26871)
MnSm-24Ye.tdb	1360.84	FCC_A1 (x(Sm) 8.000e-5) + CUB_A13 (x(Sm) 2.000e-4) + LIQUID (x(Sm) 0.26871)
MnSm-24Ye.tdb	1360.84	FCC_A1 (x(Sm) 8.000e-5) + CUB_A13 (x(Sm) 2.000e-4) + LIQUID (x(Sm) 0.26869)
MnSm-24Ye.tdb	1298.85	CUB_A13 (x(Sm) 1.700e-4) + MN23SM6_D8A (x(Sm) 0.2069) + LIQUID (x(Sm) 0.36343)
MnSm-24Ye.tdb	1298.85	CUB_A13 (x(Sm) 1.700e-4) + MN23SM6_D8A (x(Sm) 0.2069) + LIQUID (x(Sm) 0.36341)
MnSm-24Ye.tdb	1298.85	CUB_A13 (x(Sm) 1.700e-4) + MN23SM6_D8A (x(Sm) 0.2069) + LIQUID (x(Sm) 0.36354)
MnSm-24Ye.tdb	1202.15	MN23SM6_D8A (x(Sm) 0.2069) + MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.52879)
MnSm-24Ye.tdb	1202.15	MN23SM6_D8A (x(Sm) 0.2069) + MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.52895)
MnSm-24Ye.tdb	1202.15	MN23SM6_D8A (x(Sm) 0.2069) + MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.52863)
MnSm-24Ye.tdb	1194.84	LIQUID (x(Sm) 0.88911) + BCC_A2 (x(Sm) 0.99993) + HCP_A3 (x(Sm) 0.99997)
MnSm-24Ye.tdb	1194.84	LIQUID (x(Sm) 0.88926) + BCC_A2 (x(Sm) 0.99993) + HCP_A3 (x(Sm) 0.99997)
MnSm-24Ye.tdb	1069.57	MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.7255) + HCP_A3 (x(Sm) 0.99997)
MnSm-24Ye.tdb	1069.57	MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.7259) + HCP_A3 (x(Sm) 0.99997)
MnSm-24Ye.tdb	1069.57	MN2SM_C14 (x(Sm) 0.33333) + LIQUID (x(Sm) 0.72591) + HCP_A3 (x(Sm) 0.99997)
MnSm-24Ye.tdb	1006.27	MN2SM_C14 (x(Sm) 0.33333) + HCP_A3 (x(Sm) 0.99999) + RHOMB_C19 (x(Sm) 0.99999)
MnSm-24Ye.tdb	980	CBCC_A12 (x(Sm) 1.000e-5) + CUB_A13 (x(Sm) 1.000e-5) + MN23SM6_D8A (x(Sm) 0.2069)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull MnSm-09Wan

Invariant reactions (literature)

Invariant reactions reported in the literature for the Mn–Sm system (19)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1411.15	peritectic: L + δMn ↔ γMn	L: Sm 0.2187; δMn: Sm 0; γMn: Sm 0	model	[1] Wang 2009	Table 3, p. 3, row 19 report
1411.15	peritectic: L + δMn ↔ γMn	δMn: Sm 0; γMn: Sm 0	experimental	[1] Wang 2009 cites Massalski 1990	Table 3, p. 3, row 17 report
1406.15	peritectic: L + δMn ↔ γMn	δMn: Sm 0; γMn: Sm 0	experimental	[1] Wang 2009 cites Kirchmayr 1970 doi	Table 3, p. 3, row 18 report
1373.15	peritectic: L + γMn ↔ βMn	γMn: Sm 0; βMn: Sm 0	experimental	[1] Wang 2009 cites Massalski 1990	Table 3, p. 3, row 14 report
1373.15	peritectic: L + γMn ↔ βMn	L: Sm 0.3003; γMn: Sm 0; βMn: Sm 0	model	[1] Wang 2009	Table 3, p. 3, row 16 report
1368.15	peritectic: L + γMn ↔ βMn	γMn: Sm 0; βMn: Sm 0	experimental	[1] Wang 2009 cites Kirchmayr 1970 doi	Table 3, p. 3, row 15 report
1298.15	peritectic: L + βMn ↔ Mn23Sm6	L: Sm 0.3956; βMn: Sm 0; Mn23Sm6: Sm 0.2069	model	[1] Wang 2009	Table 3, p. 3, row 13 report
1298.15	peritectic: L + βMn ↔ Mn23Sm6	βMn: Sm 0; Mn23Sm6: Sm 0.2069	experimental	[1] Wang 2009 cites Massalski 1990	Table 3, p. 3, row 12 report
1203.15	peritectic: L + Mn23Sm6 ↔ Mn2Sm	Mn23Sm6: Sm 0.2069; Mn2Sm: Sm 0.3333	experimental	[1] Wang 2009 cites Massalski 1990	Table 3, p. 3, row 10 report
1202.15	peritectic: L + Mn23Sm6 ↔ Mn2Sm	L: Sm 0.5259; Mn23Sm6: Sm 0.2069; Mn2Sm: Sm 0.3333	model	[1] Wang 2009	Table 3, p. 3, row 11 report
1195.15	peritectic: L + γSm ↔ βSm	L: Sm 0.836; γSm: Sm 1; βSm: Sm 1	model	[1] Wang 2009	Table 3, p. 3, row 9 report
1195.15	peritectic: L + γSm ↔ βSm	γSm: Sm 1; βSm: Sm 1	experimental	[1] Wang 2009 cites Massalski 1990	Table 3, p. 3, row 7 report
1190.15	peritectic: L + γSm ↔ βSm	γSm: Sm 1; βSm: Sm 1	experimental	[1] Wang 2009 cites Kirchmayr 1970 doi	Table 3, p. 3, row 8 report
1068.15	eutectic: L ↔ Mn2Sm + βSm	L: Sm 0.6948; Mn2Sm: Sm 0.3333; βSm: Sm 1	model	[1] Wang 2009	Table 3, p. 3, row 6 report
1068.15	eutectic: L ↔ Mn2Sm + βSm	Mn2Sm: Sm 0.3333; βSm: Sm 1	experimental	[1] Wang 2009 cites Massalski 1990	Table 3, p. 3, row 5 report
1007.15	eutectoid: βSm ↔ Mn2Sm + αSm	βSm: Sm 0.9999; Mn2Sm: Sm 0.3333; αSm: Sm 1	model	[1] Wang 2009	Table 3, p. 3, row 4 report
1007.15	eutectoid: βSm ↔ Mn2Sm + αSm	Mn2Sm: Sm 0.3333; αSm: Sm 1	experimental	[1] Wang 2009 cites Massalski 1990	Table 3, p. 3, row 3 report
1000.15	peritectoid: βMn + Mn23Sm6 ↔ αMn	βMn: Sm 0; Mn23Sm6: Sm 0.2069; αMn: Sm 0	experimental	[1] Wang 2009 cites Massalski 1990	Table 3, p. 3, row 1 report
979.15	peritectoid: βMn + Mn23Sm6 ↔ αMn	βMn: Sm 0; Mn23Sm6: Sm 0.2069; αMn: Sm 0	model	[1] Wang 2009	Table 3, p. 3, row 2 report

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Mn–Sm system (3)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location	Quote
Mn23RE6		-3.17 kJ/mol-atom	1320	experimental			[2] Gröbner 2001 cites Shilov 1983	Table 2, p. 3, row 1 report
Mn23Sm6		-92 unspecified ± 5	1320	experimental			[3] Ye 2024 cites Shilov 1983	p. 5 report	Using high-temperature isoperibolic calorimetry, Shilov et al.[62] determined the enthalpy of formation of Mn23Sm6 at 1320 K to be -92 � 5 kJ/mol.
Mn23Sm6	Mn23Sm6	-3.17 kJ/mol-atom	1320	experimental	10.805 (mp-aaacpxjn)	18.915 (oqmd-656273)	[2] Gröbner 2001 cites Shilov 1983	Table 2, p. 3, row 1 report

Sources

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

C.P. Wang, H.L. Zhang, S.L. Wang, Z. Lin, X.J. Liu, A.T. Tang et al., Thermodynamic assessments of the Mn–Sm and Mn–Ho systems, Journal of Alloys and Compounds 481, 291-295 (2009). doi:10.1016/j.jallcom.2009.03.121
J. Gröbner, A. Pisch, R. Schmid-Fetzer, Thermodynamic optimization of the systems Mn–Gd and Mn–Y using new experimental results, Journal of Alloys and Compounds 317-318, 433-437 (2001). doi:10.1016/s0925-8388(00)01364-5
Hongjian Ye, Jiang Wang, Qing Chen, Guanghui Rao, Huaiying Zhou, Development of thermodynamic database of the Mn‐RE (RE = rare earth metals) binary systems, Materials Genome Engineering Advances 2 (2024). doi:10.1002/mgea.39

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}
}