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J. Korean Ceram. Soc. > Volume 24(6); 1987 > Article
Journal of the Korean Ceramic Society 1987;24(6): 553.
비정질 Ba-Ferrite로부터 추출한 BaFe12O19 입자의 특성
김태옥, 오영우1, 박효열, 강원호2
부산대학교 무기재료공학과
1경남대학교 무기재료공학과
2삼성코닝(주) 연구소
Characteristics of BaFe12O19 Particles Extracted from Amorphous Ba-Ferrite
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$mutextrm{m}$, 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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