Low-Temperature Electrical Conductivity of Sintered Body in the Systems <TEX>$CaO-ZrO_2$</TEX>

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J. Korean Ceram. Soc. > Volume 21(2); 1984 > Article

Journal of the Korean Ceramic Society 1984;21(2): 135.

$CaO-ZrO_2$계 소결체의 저열 전기부도제에 관한 연구

박금철, 최영섭

한양대학교 무기재료공학과

Low-Temperature Electrical Conductivity of Sintered Body in the Systems $CaO-ZrO_2$

ABSTRACT

The electrical conductivity of compositions in the system $CaO-ZrO_2$ has been measured by 2-probe tech-nique in the temperature range 350~75$0^{circ}C$. The composition of maximum conductivity in this system is within the cubic solid-solution region close to low-calcia cubic solid-solution phase boundary. The results are as follows : 1) The maximum conductivity was found 13mol CaO in zirconia. 2) As the CaO content was increased from 13 to 21 mol% the electrical conductivity decreased for any given temperature and the activation energy increased. 3) As the firing temperature and soaking time was increased the electrical conductivity increased and activation energy decreased.