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.