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Journal of Materials Science
Erschienen in: Journal of Materials Science 7/2016

16.12.2015 | Original Paper

Effects of Hf on phase structure and magnetic performance of nanocrystalline SmCo7-type alloy

verfasst von: Gang Hua, Xiaoyan Song, Dong Liu, Dongxin Wang, Haibin Wang, Xuemei Liu

Erschienen in: Journal of Materials Science | Ausgabe 7/2016

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Abstract

The effects of Hf doping on the phase constitution and its evolution of the SmCo7−x Hf x (0 ≤ x ≤ 0.5) nanocrystalline alloys were investigated. It was found that a single TbCu7-type metastable phase can be stabilized in the nanocrystalline SmCo7−x Hf x alloys with x ≤ 0.25, and the phase decomposition occurs at higher Hf doping contents. The Hf doping plays a significant role in inhibiting grain growth at high temperatures, which is favorable for the high-temperature magnetic properties. The metastable phase is stabilized by the combined effects of nanostructuring and Hf doping. Moreover, the magnetic performance is increased due to the pinning effect and the high magnetocrystalline anisotropy of the stabilized TbCu7-type phase.
Vorheriger Artikel Evolution of microstructure in AZ91 alloy processed by high-pressure torsion
Nächster Artikel One-pot synthesis of inorganic/organic hybrid membranes from organoalkoxysilane, hydroimidazole derivative, and cyclic sulfonic acid ester

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Metadaten
Titel
Effects of Hf on phase structure and magnetic performance of nanocrystalline SmCo7-type alloy
verfasst von
Gang Hua
Xiaoyan Song
Dong Liu
Dongxin Wang
Haibin Wang
Xuemei Liu
Publikationsdatum
16.12.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 7/2016
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-015-9653-1

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