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http://dx.doi.org/10.4313/JKEM.2014.27.11.702

Preparation of Bi0.5Na0.5TiO3-Based Multilayer Ceramic Actuators Using Microwave Sintering  

Kang, Jin-Kyu (School of Materials Science and Engineering, University of Ulsan)
Lee, Jae-Shin (School of Materials Science and Engineering, University of Ulsan)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.27, no.11, 2014 , pp. 702-706 More about this Journal
Abstract
A comparative study has been attempted for microwave and conventional sintering of lead-free $Bi_{0.5}Na_{0.5}TiO_3(BNT)$-based multilayer ceramic actuators(MLAs). It was found that microwave sintering (MWS) could be successfully applied to the co-firing of piezoceramic/AgPd MLAs with a 10 times shorter firing cycle as well as $100^{\circ}C$ lower firing temperature ($850^{\circ}C$) for sufficient densification than conventional furnace sintering ($950^{\circ}C$). Furthermore, MWS-derived specimens showed better electric field-induced strain than that of CFS-derived specimens by effectively suppressing interdiffusions between ceramic and electrode layers.
Keywords
Piezoelectric; Ceramics; Multilayer actuator; Microwave sintering;
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