Research Paper

Fabrication of Ba-Hexaferrite Quasi-single Crystals and their Magnetic Properties

  • LIU Jun-Liang ,
  • GUO Cui-Jing ,
  • ZHANG Wei ,
  • ZENG Yan-Wei
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  • School of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009,China

Received date: 2008-09-18

  Revised date: 2008-11-24

  Online published: 2009-05-20

Abstract

Barium hexaferrite (BaFe12O19, BaM) with large uniaxial magnetocrystalline anisotropy is a key gyromagnetic material for the millimeter wave device. BaM quasi-single crystal materials with a grain orientation degree(GOD) of 99% were successfully fabricated by using nanosized single-domain BaM crystallites as the starting materials via press-forming in magnetic filed and sintering with minor liquid participation. The as-fabricated BaM quasi-single crystals were characterized with the saturation magnetization of 4654kA/m, the coercity field of 9.552kA/m and their formation mechanism was also discussed.

Cite this article

LIU Jun-Liang , GUO Cui-Jing , ZHANG Wei , ZENG Yan-Wei . Fabrication of Ba-Hexaferrite Quasi-single Crystals and their Magnetic Properties[J]. Journal of Inorganic Materials, 2009 , 24(3) : 599 -601 . DOI: 10.3724/sp.j.1077.2009.00599

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