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http://dx.doi.org/10.4313/JKEM.2009.22.11.930

Dielectric and Piezoelectric Properties of (K,Na)NbO3 Ceramics with the amount of K4CuNb8O23 Addition  

Seo, Byeong-Ho (세명대학교 전기공학과)
Yoo, Ju-Hyun (세명대학교 전기공학과)
Mah, Suk-Burm (용인송담대학 조명인테리어과)
Jeong, Yeong-Ho (충주대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.22, no.11, 2009 , pp. 930-934 More about this Journal
Abstract
In this study, in order to develop excellent lead-free composition ceramics for piezoelectric transformer, ($K_4CuNb_8O_{23}$) added $(K_{0.5}Na_{0.5})(Nb_{0.96}Sb_{0.04})O_3$ ceramics were fabricated using conventional mixed oxide method and their piezoelectric and dielectric properties were investigated as a fu+EY50nction of the amount of KCN addition. With increasing the amount of KCN addition, density and mechanical quality factor(Qm), electromechanical coupling factor (Kp) were increased up to 1.2 mol% and then decreased. At the 1.2 mol% KCN added specimen, mechanical quality factor (Qm), electromechanical coupling factor (Kp), density and dielectric constant (${\varepsilon}r$) showed the optimal values of 781, 0.445, $4.42\;g/cm^3$ and 443, respectively, for piezoelectric transformer application.
Keywords
Lead-free ceramics composition; Electromechanical coupling factor; Electromechanical coupling factor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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