Effect of MgO Addition on the Electrical Conductivity of Pb(<TEX>$Zr_{0.52}Ti_{0.48}$</TEX>)<TEX>$O_3$</TEX>

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J. Korean Ceram. Soc. > Volume 28(12); 1991 > Article

Journal of the Korean Ceramic Society 1991;28(12): 953.

Pb($Zr_{0.52}Ti_{0.48}$)$O_3$의 전기전도도에 미치는 MgO의 첨가영향

전석택, 최경만

포항공과대학 재료금속공학과

Effect of MgO Addition on the Electrical Conductivity of Pb($Zr_{0.52}Ti_{0.48}$)$O_3$

ABSTRACT

Effect of MgO doping was studied by measuring complex impedance of PZT[Pb(Zr0.52Ti0.48)O3] samples doped with 0.25~6 mol% MgO. Electrical conductivity of PZT samples increased within 1.5 mol% of MgO doping. However above 1.5 mol%, no noticeable changes were found. Activation energy and pre-exponential factor of electrical conductivity were found to decrease within 1.5 mol% of MgO doping, but increase above 1.5 mol%. Therefore it was concluded that the decrease of electrical conductivity with MgO doping was due to the decrease of activation energy.