High Strength Zirconium Silicate Beads 0.05-50mm Zirconia Ceramic Balls for Mill Grinding Media

Zirconia balls have higher density and hardness compared with other abrasives. Moreover, zirconia balls vary in chemical composition, which leads to differences in their density and hardness. Below, Sainuo Zirconia Beads will discuss the density and hardness parameters of zirconia balls with you.
In the grinding industry, the higher the density and hardness of zirconia balls, the better the grinding effect. High density means greater weight for the same volume, which generates higher kinetic energy. High hardness enables the grinding of materials with relatively lower hardness, and it also results in lower wear rate. At present, the manufacturing technology of zirconia balls has become quite mature. Some professional manufacturers have begun to adopt titration molding technology in electrolyte for production (refer to Sainuo Zirconia Beads). The zirconia balls produced by this method feature high hardness and uniform density from surface to core, without defects such as hollow beads or snowman-shaped beads.
The density of 95 zirconia balls is 6.0 g/cm³. If the gaps between the zirconia balls are taken into account, the value is called bulk density, which is lower than the true density, at 3.6 g/cm³.
Adding stabilizers (e.g., yttrium oxide, cerium oxide) during the heating process of zirconia balls can prevent cracking during cooling after heating. For this reason, we often add 5% yttrium oxide as a stabilizer to 95% zirconia. The zirconia balls produced by this formulation possess high hardness and density, making them suitable for a wide range of industries, even for grinding high-viscosity materials.

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