| 摘要 |
PROBLEM TO BE SOLVED: To provide a zirconia micro globe, made of a globular sintered compact containing stabilizing agent, mean diameter of which is <=300 μm, mean theoretical density is >=97%, mean micro Vickers hardness of center core part is >=900, and mean crystal grain diameter is <=0.4 μm. SOLUTION: The zirconia micro globe is so excellent in abrasion resistance and durability, because of denseness of granulated body containing a center core is excellent in recycling performance, and is useable as a dispersing and crushing media for high speed stirring mill or grinding media for cleaning, grinding, matte finishing, or peening by spraying them on a surface of a metal, electronic, or resin product. |
