한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제30권5호
  • /
  • Pages.404-410
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  • 1993
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  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

침전법으로 제조된 ZnO 분체의 소결특성

Sintering Characteristics of ZnO Powder Prepared by Precipitation Method

  • 강상규 (강원대학교 재료공학과) ;
  • 김경남 (강원대학교 재료공학과) ;
  • 한상목 (강원대학교 재료공학과)
  • 발행 : 1993.05.01
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초록

The characterization and sintering behavior of ZnO powders prepared by precipitation method were investigated. ZnO powders were synthesized using the aqueous solutions of ZnCl2 and NH4OH as a precipitation agent, which were crystallized in the shape of plate-like. The grain growth of ZnO(0.68${\mu}{\textrm}{m}$, 1.3${\mu}{\textrm}{m}$ and 3.4${\mu}{\textrm}{m}$) has been studied for temepratures from 100$0^{\circ}C$ to 130$0^{\circ}C$, and the rate of densification was inversely proportional to the ZnO particle size. Densification proceeded slowly by diffusion mechanisms above at 100$0^{\circ}C$. In this work, the grain growth kinetic exponent(n) was 3. The temperature dependence of ZnO grain growth was plotted, and the activation energy of grain growth was 75~85Kcal/mol.

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참고문헌

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