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 structural properties of the (Ba,Bi,Sr)$TiO_3$ceramics with sintering temperature

소결온도에 따른 (Ba,Bi,Sr)$TiO_3$세라믹스의 구조적 특성

  • 남규빈 (광운대학교 전자재료공학과) ;
  • 최의선 (광운대학교 전자재료공학과) ;
  • 김지헌 (광운대학교 전자재료공학과) ;
  • 이문기 (광운대학교 전자재료공학과) ;
  • 이영희 (광운대학교 전자재료공학과)
  • Published : 2001.07.01
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Abstract

The (Ba$_{0.3}$Bi$_{0.3}$Sr$_{0.4}$)TiO$_3$[BBST] ceramics were prepared by conventional mixed oxide method. The structural properties of the BBST ceramics with sintering temperature were investigated by XRD, SEM, EDS. In the case of BBST ceramics sintered at 1150~135$0^{\circ}C$, the $Ba_{0.5}$Sr$_{0.5}$TiO$_3$and SrBi$_4$Ti$_4$O$_{15}$ phase were coexisted. The 2$\theta$ value of the BST (110) peaks were shifted to the lower degree at the sintering temperature of 130$0^{\circ}C$ and 135$0^{\circ}C$. The grains of the BBST ceramics sintered at 130$0^{\circ}C$ and 135$0^{\circ}C$ were not appeared. Increasing the sintering temperature, the densities of the BBST ceramics were increased. In the BBST ceramics sintered at 130$0^{\circ}C$ and 135$0^{\circ}C$, the mole ratio of Bi was decreased.d.ed.d.d.d.

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