... strength,hardness,density 4High fracture toughness 5 ZrO2 ceramic possesses Ceramic balls are widely used as grinding mediums in ... ISO9001,ISO140014.Density: ≥5.95 g/cm35.Properties Zirconia Ceramic ball possesses High grinding efficiency, High hardness, corrosion resistant, ... ceramics, structural ceramics, etc. 7. Size: Φ3mm,Φ5mm,Φ6mm,Φ8mm,Φ10mm,Φ12mm,Φ15mm,Φ20mm etc.Process arrangement by following ...