CHEN Xiaohu, QU Lang, CHEN Zhouping, ZHAO Huang, CHEN Xiaomin

(School of Materials Science and Engineering, Huaqiao Univers ity, Quanzhou 362021)

Abstract: High purity Al₂TiO₅ powders with anisotropic grain growth were synthes ized through the mechanical activated powder mixtures of α- Al₂O₃ and anatase TiO₂ at the condition of relatively low temperature and short plateau time. The typical micros tructure characteris tic of rod- like grain was observed mainly in the s intered powders . The effect and reason of mechanical activation motivating anisotropic grain growth of Al₂TiO₅ are inves tigated.

Keywords: Al₂TiO₅，mechanical activation, anisotropic grain growth