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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Electrical Properties of $\{(Sr_xCa_{1-x})_{0.95-y-z}Bi_2Pb_{0.05+y}\}Ti_{1.02}O_3$ for SMD-type Dielectric Trimmer Condenser

SMD-type Trimmer Condenser용 $\{(Sr_xCa_{1-x})_{0.95-y-z}Bi_2Pb_{0.05+y}\}Ti_{1.02}O_3$

  • 강동헌 (수원대학교 전자재료공학과) ;
  • 차훈주 (수원대학교 전자재료공학과) ;
  • 남기창 (수원대학교 전자재료공학과) ;
  • 허준 ((주)신요)
  • Published : 2002.07.08
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Abstract

Electrical properties of $\{(Sr_xCa_{1-x})_{0.95-y-z}Bi_2Pb_{0.05+y}\})Ti_{1.02}O_3$ ceramic were studied as a function of Sr/Ca ratio and Bi, Pb contents. Dielectric properties of specimens with different x, y, z values were explained in terms of ionic polarizability with Molecular Additionally Rules and Clausius-Mosotti equation. For the composition of $\{(Sr_{0.62}Ca_{0.38})_{0.90}Bi_{0.01}Pb_{0.09}\})Ti_{1.02}O_3$ and $\{(Sr_{0.62}Ca_{0.38})_{0.905}Bi_{0.015}Pb_{0.08}\})Ti_{1.02}O_3$, dielectric constant$({\varepsilon}_r)$, quality factor(Q) and temperature coefficient(TC) were 389, 3048, -1490 and 394, 1869, -1340 at 1MHz, respectively.

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