Shock Sintering of Nanocrystalline Titania

Jihong SHE; Tatsuki OHJI; Shuzo KANZAKI

doi:10.14852/jcersjsuppl.112.0.S76.0

Journal of the Ceramic Society of Japan, Supplement 112-1, PacRim5 Special Issue

Session ID : 1

DOI https://doi.org/10.14852/jcersjsuppl.112.0.S76.0

Conference information

Host: The Ceramic Society of Japan

Co-host: 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.

Papers

Shock Sintering of Nanocrystalline Titania

Jihong SHE, Tatsuki OHJI, Shuzo KANZAKI

Author information

Keywords: Tatania, Shock sintering, Density, Phase transformation, Microstructure, Grain growth

CONFERENCE PROCEEDINGS FREE ACCESS

Details

Abstract

A recently developed shock-sintering technique was employed to fabricate dense titania (TiO₂) ceramics. The densification and grain-growth behaviors as well as the anatase-to-rutile transformation of a nanocrystalline TiO₂ powder without any additives were investigated as a function of sintering temperature and/or sintering time. It has been shown that densification proceeds simultaneously with phase transformation. At 1100°C for a sintering time of 2 min, a 100% density was achieved, while 98% anatase was transformed into rutile. On the other hand, significant grain growth was observed to occur at temperatures above 1100°C.

Corresponding author

Register with J-STAGE for free!