한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제27권4호
  • /
  • Pages.548-552
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  • 1990
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  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

결합체 첨가 방법이 Sr-ferrite의 미세구조와 자기적 성질에 미치는 영향

Effect of Binder Addtion Method on Microstructure and Magnetic Prooperties of Sr-ferrite

  • 이병교 (경북대학교 공과대학 무기재료공학과) ;
  • 김정주 (경북대학교 공과대학 무기재료공학과) ;
  • 조상희 (경북대학교 공과대학 무기재료공학과)
  • 발행 : 1990.04.01
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초록

Effects of binder addition method during compacting on microstructural change and magnetic characteristics of Sr-ferrite system was investigated. Used binders were PVA and PEG, which were added separately or simultaneously. After compacts were heated at 50$0^{\circ}C$ for 3hr in air for burning out all the binders, they were sintered at 125$0^{\circ}C$ for 2h. Based on results, in the case of using the two binders simultaneously, comparing to single binder system, compacted density was somewhat higher but sintered density was rather lower, and abnormal grain growth was accelerated. According to these sintering characteristics, remanent magnetization and coercive force were also diminished.

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참고문헌

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