... strength,hardness,density 4.Improve efficiency Ceramic balls are widely used as grinding mediums in the world. Because their properties ... resistance to thermal shock. The HNCC Ceramic Balls are ideal choice as grinding mediums.1.Name: HNCC Ceramic Ball, HNCC ... .95 g/cm3 5.Properties Zirconia Ceramic ball possesses High grinding efficiency, High hardness, corrosion resistant, High fracture toughness, ...