Enhanced piezoelectric and mechanical properties of ZnO whiskers and Sb<sub>2</sub>O<sub>3</sub> co-modified lead zirconate titanate composites期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Enhanced piezoelectric and mechanical properties of ZnO whiskers and Sb₂O₃ co-modified lead zirconate titanate composites

Authors:	Mao-Sheng Cao Da-Wei Wang Jie Yuan Wei-Li Song

Affiliation:	^a School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China ^b School of Information Engineering, Central University for Nationalities, Beijing 100081, China

Abstract:	ZnO whiskers and Sb₂O₃ co-modified lead zirconate titanate (denoted as PZT/ZnO_w/Sb₂O₃) piezoelectric composites were fabricated using a solid state sintering technique. The characteristic diffraction peaks of the PZT perovskite and ZnO phases were identified from all the composites, suggesting the retention of these individual phases. The grain size of PZT was found to be reduced with Sb₂O₃ addition. A high relative density of 96.5%-99.1% was achieved in PZT co-doped with ZnO_w and Sb₂O₃. Both the piezoelectric and mechanical properties of the PZT/ZnO_w/Sb₂O₃ composites showed significant improvement over the monolithic PZT. The intrinsic effects of ZnO_w and Sb₂O₃ on the electrical and mechanical properties of the PZT/ZnO_w/Sb₂O₃ composites were discussed.

Keywords:	Piezoelectric materials Composite materials Electrical properties Mechanical properties
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