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タイトル: | Uniformly porous MgTi2O5 with narrow pore-size distribution: in situ processing, microstructure and thermal expansion behavior |
著者: | SUZUKI, Yoshikazu MORIMOTO, Masafumi |
著者名の別形: | 鈴木, 義和 |
キーワード: | MgTi2O5 Pseudobrookite Karrooite Pore-size distribution In-situ process High-temperature XRD Thermal expansion |
発行日: | 1-Dec-2010 |
出版者: | The Ceramic Society of Japan |
誌名: | Journal of the Ceramic Society of Japan |
巻: | 118 |
号: | 12 |
開始ページ: | 1212 |
終了ページ: | 1216 |
抄録: | Porous ceramics based on refractory double oxides are promising for light-weight structural components and high-temperature filter materials. In this study, porous MgTi2O5 ceramics with pseudobrookite-type structure have been prepared by in situ processing (viz. reactive sintering). High-temperature XRD revealed the in situ reaction behavior of the mixed powder, and indicated suitable sintering temperatures to obtain single phase MgTi2O5 (²1000°C). Uniformly porous MgTi2O5 ceramics with very narrow pore-size distribution at the diameter of ³1 μm were obtained by the pyrolytic reactive sintering at 10001200° C, where decomposed CO2 gas from a carbonate source acted as an intrinsic pore forming agent. Thermal expansion behavior of bulk porous MgTi2O5 (porosity: 42%) is also discussed. |
著作権等: | ©2010 The Ceramic Society of Japan. |
URI: | http://hdl.handle.net/2433/141923 |
DOI(出版社版): | 10.2109/jcersj2.118.1212 |
出現コレクション: | 学術雑誌掲載論文等 |
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