| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceramic grinding medium for barrel polishing that uses abrasive grains of <=10 μm particle sizes inhibiting abrasive deterioration of the mold parts in a mechanical molding machine and can meet the wide polishing purposes from mild grinding to crude grinding. SOLUTION: This ceramic grinding media comprises 90.0-99.5 wt.% of partially stabilized zirconia as a main component for barrel ceramic grinding media and at least one oxide selected from CaO, MgO, Y2O3, CeO2, Sc2O3 as a stabilizer for the partially stabilized zirconia. The ceramic barrel grinding media comprises the partially stabilized zirconia having an average particle size of 0.1-5.0 μm. |
