Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The Effect of Different Iron Oxides Produced from Steel Plants in the Magnetic Properties of Cabined Sr-ferrite Powders.

염산폐액 정제방법에 따른 산화철이 Sr-ferrite의 히소특성에 미치는 영향

  • 김효준 (영남대학교 대학원 전자공학과) ;
  • 조태식 (포항산업과학연구원 전자기연구팀) ;
  • 양충진 (포항산업과학연구원 전자기연구팀) ;
  • 남효덕 (영남대학교 대학원 전자공학과)
  • Published : 1997.11.01
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Abstract

The magnetic properties of calcined Sr-ferrites, related to the iron oxides, produced from three different process in steel plants, have been investigated. The powder f.characteristics of iron oxides are much affected on the magnetic properties of calcined Sr-ferrite Powders. It was possible to improve the magnetic property of calcined Sr-ferrites with the iron oxide powders of small size and narrow size distribution. The maximum magnetic properties of calcined Sr-ferrites, showing 69 emu/g of saturation magnetization and 4020 Oe of intrinsic coercivity, are achieved at the following conditions; the iron oxides from the chemirite process(EP), mole ratio of 5.8, and calcination condition of 120$0^{\circ}C$/1hr.

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