Abstract

AbstractElectrical conductivity has been measured at different temperatures for ZrO2 doped with various molar ratios of CuO. The conductivity increases due to migration of vacancies, created by doping. The conductivity was found to increase with increase in temperature till 220 °C and thereafter decrease due to collapse of the fluorite framework. A second rise in conductivity around 500 °C was observed due to phase transition of ZrO2. X‐ray powder diffraction, DTA and IR studies were carried out for confirming doping effect and phase transition in ZrO2.

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