Jyaluzir (ATZ) Alumina Toughened Zirconia beads are manufactured from a composite ceramic material comprising of microfine alumina particles mixed in matrix of nano sized zirconium particles with 20-25% Al2O3 in the composition and 60-65% ZrO2, ATZ composite features high fracture toughness, bulk density, hardness, thermal shock and wear resistance.
PHYSICAL PROPERTIES | |
Colour | White |
Surface Finish | Satin Smooth |
Density | 5.15 +/- 0.05 g/cm3 |
Bulk Density | 3.30 +/- 0.05 kg/ltr. |
Porosity | Nil |
Water absorption | Nil |
Hardness on Moh's scale | 9+ |
Hardness on Vicker's scale (Hv5) | 1350-1400 |
Crushing Strength (dia. 1.5 mm bead) | 165 kgf |
Bead Sphericity 90% | 0.95 |
% CUMULATIVE WEIGHT LOSS/HR(wear test conducted with water) | |
After 24 Hrs. | 0.0121 |
After 96 Hrs. | 0.0097 |
CHEMICAL PROPERTIES | |
ZrO2 | 64-70% |
Al2O3 | 23-27% |
SiO2 | 0.9-2.4% |
Y2O3 | 3.7-5.0% |
HfO2 | 1.5-2.5% |
CaO | 0.05-0.2% |
Others | 3-6% |
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