论文部分内容阅读
Due to the large quasi-piezoelectric d 33 coefficient in the film thickness direction,cellular piezoelectret has emerged as a new kind of compliant electromechanical transducer materials.The macroscopic piezoelectric effect of cellular piezoelectret is closely related to the void microstructures as well as the material constants of host polymer.Complex void microstructures are usually encountered in the optimum design of cellular piezoelectret polymer film with advanced piezoelectric properties.Analysis of the effective electromechanical properties is generally needed.This article presents an overview of the recent progress on theoretical models and numerical simulation for the effective electromechanical properties of cellular piezoelectret.Emphasis is placed on our own works of cellular piezoelectret published in past several years.
Due to the large quasi-piezoelectric d 33 coefficient in the film thickness direction, cellular piezoelectret has emerged as a new kind of compliant electromechanical transducer materials. Macroscopic piezoelectric effect of cellular piezoelectret is closely related to the void microstructures as well as the material constants of host polymer. Complex void microstructures are often encountered in the optimum design of cellular piezoelectret polymer film with advanced piezoelectric properties. Analysis of the effective electromechanical properties is generally needed. This article presents an overview of the recent progress on theoretical models and numerical simulation for the effective electromechanical properties of cellular piezoelectret. Emphasis is placed on our own works of cellular piezoelectret published in past several years.