Abstract

• Al (0 mol%,1 mol% & 2 mol%) doped ZnO ceramics are prepared by using solid state reaction method. Samples are heat treated at 500oC for 3 hrs. After pre-heat treatment schedule, samples are heated treatment again temperature 1100oC for 2 hrs respectively. Structural characterization of the samples are investigation by using XRD. From the XRD analysis, structural properties such as, lattice parameters, crystallite size and micro stain are evaluated. Energy gaps of the samples are studied by using UV Vis spectrometer. Non-Ohmic behavior of the Al doped ZnO ceramics varistors are also determined.