nano grinding media,Zirconia Grinding media Beads,Bead Grinding Media,Zirconium Oxide Ball,ceramic Zirconia Bead,Ceramic Grinding Media,Grinding Zirconia Beads. Zirconium silicate beads contain approximately 65% zirconia, so they are often referred to as "65 zirconium". Zirconium silicate bead is made by the advanced technology of titration forming in electrolyte and high temperature baking phase. There are no pores and cavities inside the bead. Medium hardness and density suitable for low and medium viscosity grinding and dispersion, can match most of the sand mill, as a general purpose grinding medium. Small beads are used as high-grade polishing and shot peening for hair-removal.