Nanocrystalline α-Al2O3 Using Sucrose |
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| Authors: | Rabindra N Das Amit Bandyopadhyay Susmita Bose |
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| Affiliation: | School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164-2920 |
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| Abstract: | Nanocrystalline α-Al2O3 ceramic powders have been prepared from an aqueous solution of aluminum nitrate and sucrose. Soluble Al ion-sucrose solution forms the precursor material once it is completely dehydrated. Heat treatment of the dehydrated precursors at low temperature (600°C) results in the formation of porous single-phase α-Al2O3. The precursor and heat-treated powders have been characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and BET surface area analysis. The phase-pure nanocrystalline α-Al2O3 particles had an average specific surface area of >190 m2/g, with an average pore size between 18 and 25 nm. |
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| Keywords: | nanomaterials alumina heat treatment |
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