Characterization of poled single-layer PZT for piezo stack in fuel injection system

Hong Wang, Tadashi Matsunaga, Hua Tay Lin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

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. The 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.

Original languageEnglish
Title of host publicationMechanical Properties and Performance of Engineering Ceramics and Composites V - A Collection of Papers Presented at the 34th International Conference on Advanced Ceramics and Composites, ICACC'10
PublisherAmerican Ceramic Society
Pages127-136
Number of pages10
Edition2
ISBN (Print)9780470594674
DOIs
StatePublished - 2010

Publication series

NameCeramic Engineering and Science Proceedings
Number2
Volume31
ISSN (Print)0196-6219

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