Publication Type
Conference Paper
Publication Date
Page Numbers
127 to 136
Volume
31
Conference Name
34th International Conference on Advanced Ceramics and Composites (ICACC)
Conference Location
Daytona beach, Florida, United States of America
Conference Sponsor
American Ceramic Society
Conference Date
-
Abstract
Poled single-layer PZT has been characterized in as-extracted and as-received states. PZT plate specimens in the former were extracted from a stack. Flexure strength of PZT was evaluated by using ball-on-ring and 4-point bend tests. Fractography showed that intergranular fractures dominated the fracture surface and that volume pores were the primary strength-limiting flaws. The electric field effect was investigated by testing the PZT in open circuit and coercive field levels. An asymmetrical response on the biaxial flexure strength with respect to the electric field direction was observed. These experimental results will assist reliability design of the piezo stack that is being considered in fuel injection system.
