Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Preparation of Bi0.5Na0.5TiO3-Based Multilayer Ceramic Actuators Using Microwave Sintering

마이크로파 소결법을 이용한 Bi0.5Na0.5TiO3계 적층형 세라믹 액추에이터 제조

  • Kang, Jin-Kyu (School of Materials Science and Engineering, University of Ulsan) ;
  • Lee, Jae-Shin (School of Materials Science and Engineering, University of Ulsan)
  • 강진규 (울산대학교 첨단소재공학부) ;
  • 이재신 (울산대학교 첨단소재공학부)
  • Received : 2014.09.15
  • Accepted : 2014.10.24
  • Published : 2014.11.01
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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.

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References

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