主催: The Ceramic Society of Japan
共催: Iketani Science and Technology Foundation, International Ceramic Federation, Commemorative Organization for the Japan World Exposition '70, The American Ceramic Society, The Australasian Ceramic Society, The Chinese Ceramic Society, The Korean Ceramic Society, Joint Research Consortium of Synergy Ceramics/Fine Ceramics Research Association, Nanotechnology Researchers Network Center of Japan, The Special Coordination Funds for Promoting Science and Technology, Japan National Tourist Organization, Aichi Prefectural Government, CASIO SCIENCE PROMOTION FOUNDATION, DAIKO FOUNDATION, Nagoya Convention and Visitors Bureau, The Asahi Glass Foundation, The Kao Foundation For Arts And Sciences, The Murata Science Foundation, The Ogasawara Foundation for the Promotion of Science & Engineering, ASAHI GLASS CO., LTD. Research Center, CENTRAL GLASS CO., LTD., ELECTRIC GLASS INDUSTRY ASSOCIATION OF JAPAN (EGAJ), Hattori Company, Ltd., Hitachi Research Laboratory, Hitachi, Ltd., HOYA CORPORATION, INAX Corporation, ITOCHU CERATECH CORP., Japan Cement Association, KYOCERA Corporation, KYUSHU REFRACTORIES CO., LTD., MINO CERAMIC CO., LTD., Murata Manufacturing Co., Ltd., NGK INSULATORS LTD., NGK SPARK PLUG CO., LTD., NICHIAS Corporation, NIKKO COMPANY, Nippon Electric Glass Co., Ltd., Nippon Sheet Glass Co., Ltd., NORITAKE CO., LIMITED, Tokuyama Corporation, TOTO LTD.
Nickel aluminate (NiAl2O4) spinel has a high electric conductivity and a good stability at high temperature, and it becomes a promising candidate as anode material in aluminum electrolysis. The self-propagating high-temperature synthesis (SHS) technique was employed in the present work to produce NiAl2O4 spinel by using Al and NiO as reactants. The synthesized powders were studied by SEM and XRD. The XRD results show that the formation of NiAl2O4 depends on the molar ratio (R) of NiO/Al, and NiAl2O4 spinel could only be formed when the molar ratio is higher than 1.5. The amount of the NiAl2O4 spinel reaches maximum when the molar ratio was 2. The reaction chemistry and the reaction mechanism are also discussed in this article.