Effect of Interface Porosity on the Dielectric and Piezoelectric Properties of 0-3 Type-Polymer Composites

O-3형 PZT-폴리머 복합체 제조시 압전 복합체내의 경계 기공이 유전, 압전 특성에 미치는 영향

Composition with O-3 connectivity were fabricated from PZT and phenolic resin powders. These composites were investigated for dielectric and pizoelectric properties with PZT-polymer interface porosity variation. The interface porosity dependence of dielectric and piezoelectric properties was especially discussed by porosity factors. The interface porosity dependence of piezoelectric constant was larger than that of dielectric constant. It was considered that the interface pore plays the role of a stress buffer. Thus the local stress applied on PZT particles in the composite was remarkably diminish.