Duralox 997 Micro Beads
99.7% Purity High Alumina Ceramic
Duralox 997 Spherical micro beads are produced from proprietary formulated high purity alumina composite, which contains 99.7% alpha alumina crystals having negligible percentage of silica in its body composition.
What makes Duralox 997 micro beads state of the art material for your industrial needs are its salient attributes such as :
Duralox 997 micro beads not only have a dense homogenous internal micro structure but also have a smooth surface finish and are widely used for grinding of high purity alumina oxide material.
Duralox 997 beads can withstand high temperature making them ideal for sintering of Zirconia ceramic dental restoratives on a bed of beads in a sagger. In addition, these Ceramic sintering beads adapt smoothly to the shape of Zirconia restoratives and allow the units to shrink without any deformation.
PHYSICAL PROPERTIES | |
Colour | Off White |
Surface Finish | Glossy, Satin Smooth |
Density | 3.95 0.05 g/cm3 |
Bulk Density | 2.35 0.05 kg/ltr |
Porosity | Nil |
| |
Water absorption | Nil |
Hardness on Moh's scale | 9+ |
Hardness on Vicker's scale (Hv5 ) | 1600 |
Crushing strength ( 2mm bead) | 100-110 kgf |
Bead Sphericity 90% | 0.95 |
Maximum use of Temperature (No Load Condition) | > 1750 OC (3450 OF) |
Co-efficient of Thermal Expansion (25 to 1000) | 8.4 x 10 6/ |
CHEMICAL PROPERTIES | |
Al2O3 | 99.7% |
MgO | 0.15% |
Others | 0.15% |
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