Dielectric Properties of <TEX>$Ba_{0.9}Ca_{0.1}(Ti_{1-x}Sn_x)O_3$</TEX>

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J. Korean Ceram. Soc. > Volume 23(1); 1986 > Article

Journal of the Korean Ceramic Society 1986;23(1): 7.

$Ba_{0.9}Ca_{0.1}(Ti_{1-x}Sn_x)O_3$계의 유전성

윤기현, 김재현, 조경화¹, 송효일

연세대학교 요업공학과
¹연세대학교 요업공학

Dielectric Properties of $Ba_{0.9}Ca_{0.1}(Ti_{1-x}Sn_x)O_3$

ABSTRACT

Dielectric properties of $Ba_{0.9}Ca_{0.1}(Ti_{1-x}Sn_x)O_3$ were investigated from x=0 to 0.20, and temperature range -4$0^{circ}C$~13$0^{circ}C$ Density and grain size decreased with increasing Sn content due to grain growth inhibitor. Dielectric constant below the Curie temperature increased with increasing Sn content and dissipation factor dec reased. These results are due to grain size effect and internal stress. Curie temperature was shifted to lower temperature with increasing ratio of total polarizability to volume resulting from substitution of $Ba^{2+}$ ion with $Ca^{2+}$ ion $Ti^{4+}$ ion with $Sn^{4+}$ ion.