Proceedings of the Korean Society of Machine Tool Engineers Conference (한국공작기계학회:학술대회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Electro-mechanical properties of Multilayer Ceramic Actuators

적층형 세라믹 액츄에이터의 전기-기계거동

  • 정순종 (한국전기연구원 전자기소자그룹) ;
  • 고중혁 (한국전기연구원 전자기소자그) ;
  • 송재성 (한국전기연구원 전자기소자그) ;
  • 홍원표 (생산기술연구원 나노가공) ;
  • 최원종 (생산기술연구원 나노가공팀)
  • Published : 2004.04.01
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Abstract

This study presents the combined effect of electric Held 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