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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Dielectric and Piezoelectric Characteristics of Low Temperature Sintering PbTiO3 System Ceramics with amount of Bi2O3 Addition

Bi2O3 첨가량에 따른 저온소결 PbTiO3계 세라믹스의 유전 및 압전특성

  • 류주현 (세명대학교 전기공학과) ;
  • 김도형 (세명대학교 전기공학과) ;
  • 이상호 (세명대학교 전기공학과) ;
  • 손은영 (한국폴리텍2 인천대학 메카트로닉스과)
  • Published : 2007.09.01
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Abstract

In this study, in order to develop low temperature sintering ceramics for thickness vibration mode multilayer piezoelectric transformer, $PbTiO_3$ system ceramics were fabricated using $Na_2CO_3,\;Li_2CO_3,\;MnO_2\;and\;Bi_2O_3$ as sintering aids and their dielectric and piezoeletric properties were investigated according to the amount of $Bi_2O_3$ addition. At the sintering temperature of $900^{\circ}C\;and\;Bi_2O_3$ addition of 0.1 wt%, density, grain size, thickness vibration mode eletromechanical coupling factor($k_t$), thickness vibration mode mechanical quality factor($Q_{mt}$) and dielecteic constant(${\varepsilon}_r$) showed the optimum value of $6.94g/cm^3,\;2.413{\mu}m$, 0.497, 3,162 and 209, respectively, for thickness vibration mode multilayer piezoelectric transformer application.

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References

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