한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제40권1호
  • /
  • Pages.1-4
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  • 2003
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
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Effect of Aggregates on the Microstructure in Manganese Zinc Ferrite

  • Shin, Hyo-Soon (Department of Inorganic Materials Engineering, Kyungpook National University) ;
  • Lee, Dae-Hee (Department of Inorganic Materials Engineering, Kyungpook National University) ;
  • Kim, Chang-Bum (Department of Inorganic Materials Engineering, Kyungpook National University) ;
  • Kim, Nam-Kyung (Department of Inorganic Materials Engineering, Kyungpook National University) ;
  • Lee, Suk-Kee (Department of Polymer Sciences, Kyungpook National University) ;
  • Lee, Byung-Kyo (Department of Inorganic Materials Engineering, Kyungpook National University)
  • 발행 : 2003.01.01
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초록

To study the effect of aggregates on the microstructure of sintered bodies, Mn-Zn ferrite powders were prepared by an alcoholic dehydration method. Aggregate powders and reground powders were used as seeds and matrices, respectively. The mixing ratios for the aggregate and reground powders were varied with the sintering temperatures. Green densities were measured with changes in forming pressure and they were related to the microstructures of the sintered bodies. The aggregates proved to be capable of acting as seeds for abnormal grain growth. When the green density difference between the aggregate and the matrix was large, the aggregate could become the seed of abnormal grain growth. As the forming pressure increased, the more aggregates became seeds of abnormal grain growth.

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참고문헌

  1. J. Am. Ceram. Soc. v.54 no.1 Influence of Milled Powder Particle Size Distribution on the Microstructure and Electrical Properties of Sintered Mn-Zn Ferrite G. R. Chol
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