0-3 Pieoelectric Ceramic-Polymer Composites Prepared by a New Method: Fired Composites

Abstract

I n c o m p o s i t e s w i t h 0-3 c o n n e c t i v i t y , a l o a d i n g of m o r e t h a n 6 0 v o l u m e p e r c e n t p i e z o e l e c t r i c f i l l e r i s r e q u i r e d to a c h i e v e u s e f u l p i e z o e l e c t r i c p r o p e r t i e s . A l i m i t a t i o n o f t h e p r e s e n t l y u s e d f a b r i c a t i o n p r o c e d u r e is t h e d i f f i c u l t y i n p r e p a r i n g composi tes w i t h such h igh load ing . A new method of p repa r ing 0-3 composi tes is p r e s e n t e d i n t h i s p a p e r i n w h i c h more t h a n 7 0 Volk f i l l e r p a r t i c l e s can be i n c o r p o r a t e d e a s i l y . C o n v e n t i o n a l a n d c o r o n a d i s c h a r g e p o l i n g t e c h n i q u e s were used t o e l e c t r i c a l l y p o l a r i z e t h e c o m p o s i t e s . D i e l e c t r i c a n d p i e z o e l e c t r i c p r o p e r t i e s o f t h e s e c o m p o s i t e s a r e p r e s e n t e d i n t h i s p a p e r .