Ferroelectric lead zirconate titanate (PZT) based composites containing nanoparticles of Al2O3 were prepared by a simple solid-state mixed oxide method. The sintering procedure was carried out at 1200 _C for 2 h with a heating/cooling rate of 5 _C/min. Phase formation and microstructure were examined by XRD and SEM, respectively. The effects of the Al2O3 additive on hardness were investigated.