Magnetic and structural studies in Sm-Fe-Ti magnets

Y. Wang, G. C. Hadjipanayis, A. Kim, N. C. Liu, D. J. Sellmyer

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

The effects of vanadium substitution on the magnetic properties of Sm-Fe-Ti-V melt-spun ribbons and the magnetic properties and microstructure of sintered Sm-Fe-Ti based magnets are reported. The highest coercivity, H c =10.65 kOe, was obtained in a heat-treated melt-spun Sm8 Fe75.5 Ga0.5 Ti8 V8 alloy. This is the highest value of the coercivities reported in alloys with the ThMn 12 -type structure. Bulk magnets were prepared by the usual powder metallurgy technique. However, their highest coercivity (∼2 kOe) was much less than that of the corresponding ribbons. The low coercivity of sintered magnets has been attributed to their nonuniform microstructure.

Original languageEnglish (US)
Pages (from-to)4954-4956
Number of pages3
JournalJournal of Applied Physics
Volume67
Issue number9
DOIs
StatePublished - 1990

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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