Composite electrolytes, ZrO2-30mol%KCl, were prepared using a conventional ceramic-powder processing route. The temperature-dependent conductivity and mobility were studied by using complex impedance spectroscopy and transient ionic current techniques. A noticeable conductivity enhancement was found to occur above 300C, where the conductivity was 1.6 x 10-6S/m. The conductivity at 500C was 0.00112S/m. The increase in ionic mobility between 300 and 460C was nominal. The temperature-dependent carrier concentration increased from 7.24 x 1017/m3 (300C) to 9.70 x 1019/m3 (460C). It was concluded that the ionic conductivity was governed mainly by mobile ion concentrations.

Transport Characteristics of 0.3KCl:0.7ZrO2 Solid Electrolyte. A.Mangla, A.Sil: Indian Journal of Pure and Applied Physics, 2001, 39[4], 267-70