Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Characteristics of BaFe12O19 Particles Extracted from Amorphous Ba-Ferrite

비정질 Ba-Ferrite로부터 추출한 BaFe12O19 입자의 특성

  • 김태옥 (부산대학교 무기재료공학과) ;
  • 오영우 (경남대학교 무기재료공학과) ;
  • 박효열 (부산대학교 무기재료공학과) ;
  • 강원호 (삼성코닝(주) 연구소)
  • Published : 1987.06.01
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Abstract

Amorphous ferrites with composition B2O3-mBaO-nFe2O3 were prepared by an ultra rapidquenching technique. X-ray patterns and SEM reveal the products to be amrophous at room temperature. BaFe12O19 fine particles extracted from amorphous Ba-ferrites which additived Al2O3, SiO2, TiO2 and CoO have narrow size distribution, average 0.2$\mu\textrm{m}$, and coercive force, average 1400 Oe, increased with increasing TiO2 amounts. The obtained BeFe12O19 fine particles would be appreciated as perpendicular magnetic recording media.

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References

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