Ceramic Balls – Grinding Media
Ceramic grinding media beads are available in four grades — Zirconia Toughened Alumina, Zirconium Silicate Beads, Microcrystal Alumina Beads, and Alumina Toughened Zirconia.
Zirconia Toughened Alumina
Zirconia Toughened Alumina bead was sintered from alumina powder and zirconium silicate powder. Compared to the alumina beads, it is an economic ceramic bead to replace kaolin bead, silica sand and other natural grinding media.
Chemical Composition
Al₂O₃65-75%
ZrO₂6-12%
SiO₂6-8%
Physical Properties
Specific Gravity3.1-3.2 kg/dm³
Bulk Density2.0-2.2 kg/L
Micro Hardness900 kg/mm²
Compressive Strength80 kgf (2mm)
Wear Rate<70 g/T
ColorShell