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J. Korean Ceram. Soc. > Volume 45(11); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(11): 713.
doi: https://doi.org/10.4191/kcers.2008.45.1.713
자전연소반응법에 의해 제조된 PZT의 전기적 특성에 미치는 Sr의 영향
양범석, 신창윤, 원창환
충남대학교 급속응고신소재연구소
Effects of Sr on the Electrical Properties of PZT Ceramics Prepared by Self-propagating High-temperature Synthesis
Beom-Seok Yang, Chang-Yun Shin, Chang-Whan Won
Engineering Research Center for Rapidly Solidified Materials, Chungnam National University
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.
Key words: SHS, Piezoelectric element, PSZT
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