CHEN Xiaohu, CUI Xu, CHEN Xiaomin, ZHAO Huang

(The Key Laboratory of Functional Materials for Fujian Higher Education, Huaqiao University, Quanzhou 362021)

Abstract: Mechanical activation operation against powder mixture of α- Al₂O₃ and anatase - type TiO₂ was carried out using planetary miller. High purity Al₂TiO₅ samples were synthesized under condition of relative low temperature. Physical chemistry development and resultants of powder mixture induced by mechanical activation were investigated, as well as these effects on formation of Al₂TiO₅ were also analyzed. Effect of mechanical activation was a time - dependent accumulation process according to the results of this investigation. Phase transformation, size reduction, crystal lattice strain and introduction of milling contamination induced by mechanical activation were beneficial for Al₂TiO₅ formation via solid-state reaction route.

Key words: aluminum titanate, mechanical activation, X-ray diffraction, solid-state reaction