| 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 |
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| ABSTRACT |
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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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