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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Dielectric and Piezoelectric Characteristics of $Bi_{0.5}(Na_{0.84}K_{0.16})_{0.5}TiO_3$ Ceramics with the variations of Sr Substitution

Sr 치환에 따른 $Bi_{0.5}(Na_{0.84}K_{0.16})_{0.5}TiO_3$ 세라믹스의 유전 및 압전특성

  • Published : 2003.07.10
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Abstract

In this Study, lead-free $Bi_{0.5}(Na_{0.84}K_{0.16})_{0.5}TiO_3$ system ceramics were fabricated with the variations of Sr substitution and their dielectric and piezoelectric characteristics were investigated. With the increase of Sr substitution, dielectric constant increased linearly and Curie temperature decreased slightly. Also, the temperature dependence curve of dielectric constant was moved to left-ward. At 4mol% Sr substitution, Tc of 292, kp of 34.03%, kt of 45.32% and ${\epsilon}r$ of 868 were shown, respectively.

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