Applied Study on Piezoelectric Properties of Ferroelectric Nanomaterials
Zhang, Shuai
Chen, Lei
An, Ruixin
Zhu, Wanli
Zhao, Songying
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How to Cite

Zhang S., Chen L., An R., Zhu W., Zhao S., 2017, Applied Study on Piezoelectric Properties of Ferroelectric Nanomaterials , Chemical Engineering Transactions, 62, 7-12.
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Abstract

This paper presents the theoretical model d33(D) for the size dependence of the piezoelectric coefficient of the ferroelectric lead titanate PbTiO3 nano particles, where D is the diameter of nano particles. Through the model, it is found that the key to obtaining the piezoelectric coefficient of nano-ferroelectric material is to introduce its size effect. The research shows that d33(D) increases with the decrease of size D, and that the prediction results of the theoretical model are consistent with the experimental results of the piezoelectric coefficient of ferroelectric nanomaterials. In addition, based on the assumption that the dielectric susceptibility coefficient η33(D) is directly proportional to d33(D), this paper also successfully predicts the size effect of the dielectric susceptibility coefficient, and the η33(D) function predicted by the proposed model is consistent with those by other theoretical models.
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