Alumina Toughened Zirconia Beads

TZ5 is a highly engineered ceramic milling bead, specifically designed for the milling of abrasive suspensions. Its chemical composition and ceramic microstructure provide high milling efficiency and improved wear resistance.


Unique microstructure

TZ5 beads show a unique ceramic microstructure obtained from a Saint-Gobain ZirPro patented technology. It consists in a Zirconia – Alumina composite matrix, reinforced with alumina based platelets. These features provide optimized milling efficiency thanks to an intermediate density, and increased hardness and wear resistance for the milling of abrasives slurries.

Unique microstructure of Alumina Toughened Zirconia Beads
Chemical Composition (wt%) ZrO(stabilized) Al2O3 Others
73 25 2
Specific Gravity (g/cm3) 5.3
Bulk Density (Kg/L) 3.3
Vickers Hardness (HV1) 1300
Available Sizes (mm)

0.7 - 0.9

0.9 - 1.1

1.2 - 1.4

1.4 - 1.6

1.6 - 1.8

1.8 - 2.0

Enhanced wear performance in abrasive slurries

In the milling of abrasive suspensions like Alumina slurries, TZ5 beads show longer durability than yttrial stabilized zirconia beads, as shown in the graph below:

Graph zirpro - Slurry and wear index