한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제27권10호
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  • Pages.630-634
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  • 2014
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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CuO 첨가에 따른 (Na,K,Li)(Nb,Sb,Ta)O3 세라믹스의 유전 및 압전 특성

Dielectric and Piezoelectric Properties of (Na,K,Li)(Nb,Sb,Ta)O3 Ceramics as a Function of CuO Addition

  • 이갑수 (세명대학교 전기공학과) ;
  • 김유석 (세명대학교 전기공학과) ;
  • 류주현 (세명대학교 전기공학과) ;
  • 마석범 (용인송담대학 조명인테리어과)
  • Lee, KabSoo (Department of Electrical Engineering, Semyung University) ;
  • Kim, YouSeok (Department of Electrical Engineering, Semyung University) ;
  • Yoo, JuHyun (Department of Electrical Engineering, Semyung University) ;
  • Mah, Sukbum (Department of Lighting and Interior Design, Yong-in Songdam College)
  • 투고 : 2014.08.11
  • 심사 : 2014.09.05
  • 발행 : 2014.10.01
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초록

$(Na_{0.525}K_{0.4425}Li_{0.0375})(Nb_{0.9975}Sb_{0.065}Ta_{0.0375})O_3+0.3 wt%CoO$ ceramics were fabricated as a function of CuO addition by traditional solid state sintering process in order to develop excellent lead-free piezoelectric ceramics composition. The addition of CuO in the LNKNTS composition ceramics can effectively enhance the densification of the ceramics, resulting in the oxygen vacancies as hardening effect. The excellent piezoelectric properties of electromechanical coupling factor($k{\small}_P$) of 0.378, piezoelectric constant($d_{33}$) of 152 pC/N were obtained from the 1.0 mol% CuO doped LNKNTS ceramics sintered at $1,020^{\circ}C$ for 3 h.

키워드

참고문헌

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