Isothermal section of the Ni-Mn-Sb ternary system at 773K

Ao W.-Q.; Yu H.-Z.; Liu F.-L.; Liu F.-S.; Li J.-Q.; Du Y.; Liu S.-H.; Shi C.-Y.

doi:10.2298/JMMB181104019A

Journal of Mining and Metallurgy. Section B: Metallurgy (Jan 2019)

Isothermal section of the Ni-Mn-Sb ternary system at 773K

Ao W.-Q.,
Yu H.-Z.,
Liu F.-L.,
Liu F.-S.,
Li J.-Q.,
Du Y.,
Liu S.-H.,
Shi C.-Y.

Affiliations

Ao W.-Q.: State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China + College of Materials Science and Engineering, Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials and Shenzhen Key Labora
Yu H.-Z.: College of Materials Science and Engineering, Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials and Shenzhen Key Laboratory of Special Functional Materials, Shenzhen,China
Liu F.-L.: College of Materials Science and Engineering, Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials and Shenzhen Key Laboratory of Special Functional Materials, Shenzhen,China
Liu F.-S.: College of Materials Science and Engineering, Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials and Shenzhen Key Laboratory of Special Functional Materials, Shenzhen,China
Li J.-Q.: College of Materials Science and Engineering, Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials and Shenzhen Key Laboratory of Special Functional Materials, Shenzhen,China
Du Y.: State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
Liu S.-H.: State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
Shi C.-Y.: State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China

DOI: https://doi.org/10.2298/JMMB181104019A
Journal volume & issue: Vol. 55, no. 2
pp. 147 – 156

Abstract

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The isothermal section of the Ni-Mn-Sb ternary system at 773 K was measured by means of 117 alloys which were analyzed by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersion spectroscopy (EDS), and electron probe microanalysis (EPMA) techniques. The existence of 7 binary compounds, namely NiMn, Mn2Sb, MnSb, NiSb2, NiSb, Ni5Sb2, Ni3Sb and 2 ternary compounds, namely Ni2MnSb and NiMnSb were confirmed for this isothermal section. The four binary compounds Ni3Sb (Cu3Ti structure, Pmmn space group), Ni5Sb2 (Ni5Sb2-type structure, C2 space group), NiSb2 (FeS2-type structure, Pnnm space group) and Mn2Sb (Cu2Sb-type structure, P4/nmm space group) in the binary systems Ni-Sb and Mn-Sb were stoichiometric compounds, the homogeneity ranges of which were negligible. However the five single phases in the Ni-Mn system and the two binary compounds MnSb and NiSb showed more or less homogeneity ranges formed by substitution of Mn and Sb for Ni atom. The Heusler compound μ (Ni2MnSb) has L21-type ordered structure with space group Fm-3m, a = 0.6017 nm. And the crystal structure for the Half-Heusler compound κ (NiMnSb) is C1b-type (F-43m) with a = 0.5961 nm. The approximate homogeneity ranges of the two ternary compounds μ and κ at 773 K were investigated.

Published in Journal of Mining and Metallurgy. Section B: Metallurgy

ISSN: 1450-5339 (Print); 2217-7175 (Online)
Publisher: Technical Faculty, Bor
Country of publisher: Serbia
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.doiserbia.nb.rs/journal.aspx?issn=1450-5339

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