Preprints of Annual Meeting of The Ceramic Society of Japan
Preprints of Fall Meeting of The Ceramic Society of Japan
Annual Meeting of The Ceramic Society of Japan, 2009
Session ID : 1E20
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Host: The Ceramic Society of Japan

Spinel Coating Using Aqueous Sol and Corrosion Resistance in Molten Aluminum Alloy
*Yutaka Ohya, Kouhei Asano, Takuya Soga, Osamu Sakurada, Takayuki Ban, Satoshi Kitaoka
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Keywords: Spinel, Coating, Aqueous sol, aluminum titanate ceramics, Corrosion in molten aluminum
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Abstract

Spinel precursor sol was synthesized by addition of aluminum isopropoxide into the magnesium nitrate solution at 80C. After removal of alcohol, water was added to the sol to control a concentration of the sol. The resultant sol was transparent and slightly cloudy. The sol could be coated and spinel phase was detected after heating at 400C. D-value of the formed phase was not that of gamma-alumina but that of Al2MgO4. The sol was coated on aluminum titanate (AT) ceramics and corrosion in molten aluminum alloy was examined.

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© The Ceramic Society of Japan 2009
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