Abstract
Nano – biocompatible ceramic composite material have been prepared ,this material consist of Alumina reinforced by nano cubic zirconia stabilized using magnesia, the idea of using MgO as a stabilizer is to utilize it as a sintering aid ,also to be comfortable in using the stabilization percent because we used a higher percentage than the percentage required to obtain a completely stable "cubic" phase, the remaining quantity of magnesia will form spinel which is a biocompatible ceramic material.XRD results proved the formation of MgAl2O4 . TEM result assured the nanosize of the synthesized cubic zirconia ,which also assured using sherrer?s equation.SEM was used to study the microstructure of the composite .