Hexaferrite Magnetic Materials prepared by Mechanical Alloying

J. Ding, D. Maurice, W.F. Miao, Paul Mccormick, Robert Street

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

The structure and properties of hexaferrites in the form of MFe(12)O(19) with M = Ba, Sr and Pb prepared by mechanical alloying and heat treatment have been studied. Coercivities of 6-7 kOe were measured for Ba- and Sr-hexaferrite powders. The high values of coercivities have been associated with small particle sizes (similar to 0.1 mu m) resulting from the mechanical alloying and subsequent heat treatment. High-coercivity anisotropic samples have been synthesized using hot-pressing, with remanences of 70-75% of the saturation magnetisation being obtained.
Original languageEnglish
Pages (from-to)417-420
JournalJournal of Magnetism and Magnetic Materials
Volume150 (3)
DOIs
Publication statusPublished - 1995

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