The addition of metallic inclusions in ceramic matrix has been one of the most used alternatives in order to obtain increased toughness ceramic materials. The presence of a metallic phase in the composite introduces new parameters for the manufacture process and also other kind of limitations for service conditions, specially at high temperatures. The mechanical properties and the chemical stability of this material at high temperature depends on metallic particles distribution in the ceramic matrix. If this distribution is homogeneous, then there will be adequate conditions for an isotropic behavior of the composite. In this work the particle distribution of niobium and nickel, for two different weight concentrations in Al2O3-ZrO2 ceramic matrix was studied. An image analyzer was used to determine the distribution, inclusion mean size, and surface area occupied by the metallic inclusion.