A Study on the Dielectric Properties of PZT Ceramics with 2 and 6 Valent Additives

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J. Korean Ceram. Soc. > Volume 20(1); 1983 > Article

Journal of the Korean Ceramic Society 1983;20(1): 19.

2가 및 6가의 첨가제에 따른 PZT 자기의 유전적 성질에 관한 연구

안영필, 이기옥

한양대 무기재료공학과

A Study on the Dielectric Properties of PZT Ceramics with 2 and 6 Valent Additives

ABSTRACT

Dielectrics used as capacitor was studied in the system of $Pb(MgW)_{0.5} O_3-PbTiO_3-PbZrO_3$ Curie tempera-tures of $PbTiO_3 PbZrO_3$ and $Pb[MgW]_{0.5} O_3$ were 49$0^{circ}C$ 23$0^{circ}C$ and 39$0^{circ}C$ respectively. When these materials formed solid solution the more amount of $Pb(MgW)_{0.5}O_3$ was increased the more Curie temperature lowered and dielectric constant increased. Higher dielectric constants were measured in the solid solution of which X-Ray diffraction patterns were changed. Especially Curie temperature and dielectric constant were 85$^{circ}C$ and 4159 respectively in the composition of 60 $Pb(MgW)_{0.5}O_3-30 PbTiO_3-10PbZrO_3$. Also in this composition ferroeletric material with thermal stability was obtained.