Influence of TiO2 content on the tensile and actuation properties of piezoelectric fiber composites

被引：0
作者：
Chen, Hai-Yan [1 ]
Lin, Xiu-Juan [1 ,2 ]
Chen, Zi-Qi [1 ]
Zhou, Ke-Chao [1 ]
Zhang, Dou [1 ]
机构：
[1] State Key Laboratory of Powder Metallurgy, Central South University, Changsha
[2] School of Materials Science and Engineering, Jinan University, Jinan
来源：
Wuji Cailiao Xuebao/Journal of Inorganic Materials | 2015年 / 30卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Actuation performance; Piezoelectric fiber composites (PFCs); TiO[!sub]2[!/sub] tensile properties;
D O I：
10.15541/jim20140269
中图分类号：
学科分类号：
摘要：
Piezoelectric fiber composites (PFCs) composed of lead zirconate titanate (PZT) fibers with interdigitated electrodes (IDEs) were prepared by viscous polymer processing technique. The influence of TiO2 content in epoxy resin on the electrical impedance, tensile properties and actuation performance of PFCs was investigated and characterized. The experimental results showed that the resonant frequency of PFCs was influenced by TiO2 content in the epoxy resin heavily. With the increase of TiO2 content in epoxy resin, tensile strength and longitudinal free strain of PFCs were enhanced firstly and then decreased. When the TiO2 content in epoxy resin was increased to 3 wt%, the tensile strength reached the maximun value, 77.50 MPa. The longitudinal free strain of PFCs reached 1783.7 με when PFCs with 3wt% TiO2 in epoxy resin were under the excitation voltage range of -500 V to +1500 V at 0.1 Hz. Both tensile properties and actuation performance of PFCs decreased when TiO2 content increased from 3wt% to 5wt%. PFCs exhibited different actuation performance when excitation electric field with different frequencies was applied to PFCs. With the increase of excitation frequency, the longitudinal free strain values of PFCs displayed an obvious decrease at first and then decreased slowly when excitation frequency was over 5 Hz. ©, 2015, Science Press. All right reserved.
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页码：165 / 170
页数：5
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