Preparation and properties of PZN-PZT/PVDF piezoelectric composites modified by graphite

摘要：

The graphite-modified PZN-PZT/PVDF composites were fabricated by hot-pressed process using PZN-PZT ceramic powder, PVDF and graphite powder. The effect of graphite content on the electrical properties of the piezoelectric composites was investigated. The results indicated that the piezoelectric constant d33 could be enhanced obviously by adding suitable content of graphite into the composites. When 0.8wt％ graphite was added, the PZN-PZT/PVDF composites showed the excellent properties: o=3.31x 10-6S/m, εr=133, tan6=0.066, Kp=0.228, Qm=22.8 and d33=40.6pC/N,which showed 28％ higher than that of the composites without graphite.

关键词： PZN-PZT PVDF Piezoelectric composite Graphite

作者: Shan Hu Shangyue Shen Hongchang Han

作者单位: Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciencas. Wuhan 430074, P. R. China Faculty of Materials Science and Chemical Engineering, China University of Geosciences, Wuhan 430074, P. R. China

会议类型: 国际会议

会议名称: 2009 International Symposium on Liquid Crystal Science and Technology(2009国际液晶科技研讨会)

会议地点: 昆明

会议语种:英文

页码: 552-555

在线出版日期: 2009-08-02（万方平台首次上网日期，不代表论文的发表时间）