Curie Temperature Anomaly in Lead Zirconate Titanate/Silver Composites |
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| Authors: | Hae Jin Hwang Toru Nagai Tatsuki Ohji Mutsuo Sando Motohiro Toriyama Koichi Niihara |
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| Affiliation: | National Industrial Research Institute of Nagoya, Nagoya 462-8510, Japan;Fine Ceramics Research Association, Nagoya 462-8510, Japan;The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567, Japan |
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| Abstract: | The Curie temperatures of lead zirconate titanate-based (PZT-based) composites that were incorporated with silver particles were evaluated as a function of the silver content. Although the substitution of the silver ion has been considered to decrease the Curie temperature, PZT/silver composites exhibited higher Curie temperatures than those of monolithic PZT ceramics. It was found that the Curie temperature gradually increased as the silver content increased. It was suggested that the observed Curie temperature anomaly resulted from the relaxation of transformation-induced internal stress by intergranular silver particles. |
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