Hafnium Oxide Zirconia Beads are crafted from ultra-fine hydrolyzed zirconia powder, which is ground and dispersed into a nano-scale slurry before being formed into beads using a single-step titration rolling process. These beads are then pressurized and sintered at low temperatures, resulting in uniformity, higher strength, and reduced wear compared to traditionally rolled beads. The wear curve remains stable over time, making them ideal for the pure, efficient dispersion and grinding of materials in high-energy-density sand mills.
The beads' dense microcrystalline structure provides exceptional compressive strength, making them well-suited for use in high-energy density and high linear speed sand mills. The fine microcrystalline particles ensure minimal wear, measured in the parts-per-million (ppm) range, allowing for efficient, ultra-fine, and pure dispersion and grinding of materials even in challenging aqueous systems or acidic and alkaline environments.
Specific Gravity |
>6.0kg/dm3 |
Bulk Density |
>3.6kg/L |
Mohs Hardness |
9 |
Vickers hardness |
1200kg/mm2 |
Compressive strength |
200kgf(2mm) |
Sphericity |
96% |
Chemical Composition
Composition |
ZrO2+HfO2 |
Y2O3 |
Al2O3/Others |
Wt% |
95 |
4.8 |
0.2 |
Specification
Model |
Diameter (φ) mm |
ND3 |
0.3~0.4 |
ND4 |
0.35~0.45 |
ND5 |
0.4~0.6 |
ND6 |
0.6~0.8 |
ND8 |
0.8~1.0 |
ND10 |
1.0~1.2 |
ND12 |
1.2~1.4 |
ND14 |
1.4~1.6 |
ND16 |
1.6~1.8 |
ND18 |
1.8~2.0 |
ND20 |
2.0~2.2 |
ND22 |
2.2~2.5 |
ND25 |
2.5~2.8 |
ND28 |
2.8~3.2 |
*Sizes can be tailored to meet specific customer requirements.
25kg per drum, packaged in composite woven bags or drums.