Abstract：The Al2O3-TiO2 ceramic composites are prepared by laser sintering and cold isostatic pressing(CIP) composite technology. Microstructures and composition of the laser sintered samples are characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD) . The result shows that the Al2O3-TiO2 ceramic has a higher density. Meanwhile there are no obvious cracks and porous. The interwoven columnar crystal structure appears on the surface of ceramic block, which could prevent intergranular fracture. And typical equiaxed grain structure which can greatly enhance the performance of ceramic is presented on the coating cross-sections. Because this structures have higher toughness and strength. Meanwhile, in order to lay the foundation for future research work, the interaction of laser with the ceramic material and the densifi cation process are discussed.
2011, 
