首页|Preparation and properties of PZN-PZT/PVDF piezoelectric composites modified by graphite
Preparation and properties of PZN-PZT/PVDF piezoelectric composites modified by graphite
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NETL
NSTL
Trans Tech Publications Ltd
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 d_(33) 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: σ=3.31×10~(-6)S/m, ε_r=133, tan8=0.066, K_p=0.228, Q_m=22.8 and d_(33)=40.6pC/N, which showed 28% higher than that of the composites without graphite.
PZN-PZTPVDFpiezoelectric compositegraphite
Shan Hu、Shangyue Shen、Hongchang Han
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Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, P. R. China Faculty of Materials Science and Chemical Engineering, China University of Geosciences, Wuhan 430074, P. R. China
NETL
NSTL
Trans Tech Publications Ltd
