著者

中平 敦 武田 真一 塩見 治久 大西 宏司

出版者

The Ceramic Society of Japan

雑誌

Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) (ISSN:09145400)

巻号頁・発行日

vol.107, no.1247, pp.662-667, 1999-07-01 (Released:2010-08-06)

参考文献数

29

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Effect of alcohol solvent in mixing process on the microstructure and sintering behavior of ceramic-based composites was investigated in detail. The mixture of fine ceramic powders was prepared through the conventional ball-milling method with various alcohol media. The particle distributions of fine ceramic powders were strongly dependent on the kind of alcohol employed during ball-milling. Ceramic-based composites were fabricated by hot-pressing the mixture of fine ceramic powders. Their microstructures and some mechanical properties of the ceramic-based composites were evaluated. It was found that the viscosity of alcohol, surface tension and contact angle greatly affect the sinterability and some of the mechanical properties of ceramic-based composites.

著者

乾 一代 大西 宏司 河波 利夫

出版者

The Society of Powder Technology, Japan

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.30, no.2, pp.80-87, 1993

被引用文献数

3

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The wear characteristics of ZrO₂ balls, which were prepared under several conditions, were investigated.<br>The wear loss of ZrO₂ balls was attributed to the materials of the tank, such as Al₂O₃, ZrO₂, and urethane. The wear loss of ZrO₂ balls using a mill with an Al₂O₃ lining was larger than that using a mill with ZrO₂ or urethane. This result indicated that the wear particles of the Al₂O₃ lining worn by ZrO₂ balls attacked the surface of the ZrO₂ balls and promoted the wear of the balls, because Al₂O₃ particles are harder than ZrO₂ balls.<br>Also, the wear loss of the ZrO₂ balls depended mainly on the grain size, fracture toughness and strength of the balls.<br>The SEM of the worn surface showed some defects and pores, and the wear mode was primarily intergranular.<br>It was supposed that phase transformation also had an influence on the wear of the balls.