Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effects of Sr on the Electrical Properties of PZT Ceramics Prepared by Self-propagating High-temperature Synthesis

자전연소반응법에 의해 제조된 PZT의 전기적 특성에 미치는 Sr의 영향

  • Yang, Beom-Seok (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University) ;
  • Shin, Chang-Yun (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University) ;
  • Won, Chang-Whan (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University)
  • 양범석 (충남대학교 급속응고신소재연구소) ;
  • 신창윤 (충남대학교 급속응고신소재연구소) ;
  • 원창환 (충남대학교 급속응고신소재연구소)
  • Published : 2008.11.30
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Abstract

PSZT are selected and SHS are applied to each system. The sintering properties of PSZT powders showed $7.754g/cm^3$ of sintered density and $4{\mu}m$ of grain size at sintering temperature of $1250^{\circ}C$. Curie temperature lowered gradually from $363.6^{\circ}C\;to\;319.2^{\circ}C$ and relative dielectric constants increased rapidly by a quantity of Sr. This remarkable contrast in dielectric properties with powder preparation methods, in this study, was not due to grain size and sintered density but rather a crystallinity and sinterability of synthesized powders, extra-supplied Pb during reaction, mol fraction of rhombohedral phase and purity of starting materials.

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References

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