Glycothermal synthesis of α-Al2O3 in 1,4-Butadional organic solvent
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α-Al2O3 powders with different grain sizes and morphologies have been synthesized in the system of Al - 1, 4-butadional by glycothermal treatment. The effects of reaction temperature, and reaction time on synthesis of α-Al2O3 powders have been investigated. After the glycothermal treatment, the morphologies of α-Al2O3 powders are mainly hexagonal platelets, hexagonal prism, and icohedron. The crystal habits of α-Al2O3 powders have been also discussed.
Keywordsα-Al2O3 Glycothermal synthesis 1,4-butadional Growth habits
The present work was partially supported by the National Science Foundation of China (Grant no. 50332030), and Chinese National Key Project for Fundamental Researches (Grant no. 2002CB613302). The authors would like to thank Professor Richard E. Riman, Department of Ceramic and Materials Engineering, Rutgers University, USA, for his valuable advices.