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

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

소성온도 변화에 따른 PNW-PMN-PZT세라믹스의 미세구조 및 압전특성

Microstructural and Piezoelectric Characteristics of PNW-PMN-PZT Ceramics with the variations of sintering temperature

  • 이정선 (세명대학교 전기공학과) ;
  • 류주현 (세명대학교 전기공학과) ;
  • 홍재일 (동서울대학교 전기공학과) ;
  • 이수호 (경북대학교 전기전자공학부) ;
  • 이명수 (산자부 기술표준원)
  • 발행 : 2001.11.08
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초록

In this study,microstructure and piezoelectric characteristics of PNW-PMN-PZT ceramics manufactured using attrition milling method were investigated. Sintering temperature of the ceramics was varied from $1180^{\circ}C$ to $1240^{\circ}C$.With increasing sintering temperature, dielectric constant was increased. In the specimen sintered at $1120^{\circ}C$,electromechanical coupling factor(Kp) and density showed the maxinum values of 0.546 and $7.78(g/cm^{3})$, respectively. In the specimen sintered at $1160^{\circ}C$,mechanical quality factor(Qm) also showed the maxinum value of 1,943.

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