Fabrication and Performance Reseach of the Al_2TiO_5/Al_2O_3 Composite Materials Li Mingzhong Fang Qing Shen Qiang Zhang Lianmeng Li Mingzhong Lect., School of Materials Science and Engineering, WUT, Wuhan 430070, China.The Al 2TiO 5/Al 2O 3 composites were fabricated at 1 500 ℃, and their thermo mechanical properties were investigated. The results indicated that the relative density and the thermal expansion coefficient reduce with the decrease of the Al 2TiO 5. Moreover, the bending intensity and elastic modulus of composites have the similar manner to thermal expansion coefficient. With the different contents of the Al 2TiO 5, the expansion coefficients rang from -0.45×10 -6 /℃ to 8×10 -6 /℃.Al 2TiO 5; Al 2O 3; composite materials; fabrication; property