Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electro-mechanical properties of Multilayer Ceramic Actuators

적층형 세라믹 액츄에이터의 전기-기계적 거동

  • Jeong, Soon-Jong (Korea Electrotechnology Research Institute, Electric and Magnetic Devices Group) ;
  • Koh, Jung-Hyuk (Korea Electrotechnology Research Institute, Electric and Magnetic Devices Group) ;
  • Ha, Mu-Su (Korea Electrotechnology Research Institute, Electric and Magnetic Devices Group) ;
  • Lee, Jae-Suk (Korea Electrotechnology Research Institute, Electric and Magnetic Devices Group) ;
  • Song, Jae-Sung (Korea Electrotechnology Research Institute, Electric and Magnetic Devices Group)
  • 정순종 (한국전기연구원 전자기 소자 연구그룹) ;
  • 고중혁 (한국전기연구원 전자기 소자 연구그룹) ;
  • 하문수 (한국전기연구원 전자기 소자 연구그룹) ;
  • 이재석 (한국전기연구원 전자기 소자 연구그룹) ;
  • 송재성 (한국전기연구원 전자기 소자 연구그룹)
  • Published : 2003.05.16
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Abstract

This study presents the combined effect of electric field application and mechanical compressive stress loading on deformation in a multilayer ceramic actuator, designed with stacking alternatively $0.2(PbMn_{1/3}Nb_{2/3}O_3)-0.8(PbZr_{0.475}Ti_{0.525}O_3)$ ceramics and Ag-Pd electrode. The deformation behaviors were thought to be attributed to relative $180^{\circ}$domain quantities which is determined by pre-loaded stress and electric field. The non-linearity of piezoelectricity and strain are dependent upon the young's modulus resulting from the domain reorientation.

Keywords