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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Structural and Electrical properties of MnO$_2$ added PbTiO$_3$system ceramics for Hydrophone

MnO$_2$가 첨가된 하이드로폰용 PbTiO$_3$계 세라믹스의 구조적 전기적 특성

  • 홍재일 (대유공업전문대학 전기과) ;
  • 유주현 (세명대학교 전기공학과) ;
  • 박정흠 (연세대학교 전기공학과) ;
  • 이두희 (연세대학교 전기공학과) ;
  • 박창엽 (연세대학교 전기공학과)
  • Published : 1994.11.01
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Abstract

In this study, to improve sintering condition, anisotropic Property(k$\_$t//k$\_$p/) of electromechanical coupling coefficients, and hydrostatic piezoelerlric constants d$\_$h/ and g$\_$h/, MnO$_2$impurity was added to the (Pb$\_$0.76/Ca$\_$0.24)[(Co$\_$$\frac{1}{2}$W$\_$$\frac{1}{2}$/)$\_$0.04/Ti$\_$0.96/]O$_3$ System ceramics for hydrophone. And the structural, electrical properties of them were investigated. As a results. tetragonality was decreased with MnO$_2$ additives and density was the highest value of 7.06(g/㎤) at H2-3 specimen. Electromechanical coupling coefficients of H2-3 specimen were k$\_$t/=49 and k$\_$p/ 0, which exibited the hightest hydrostatic piezoelectric constants of d$\_$h/=64.52[10$\^$-1/C/N] and g$\_$h/=35.92[10$\^$-3/ Vm/N].

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