Chemical Composition(%)
| Items | Al2O3 | ZrO2 | TiO2 | Fe2O3 | SiO2 |
| ZA25 | 68-72 | 24-30 | ≤1.5 | ≤0.5 | ≤1.0 |
| ZA40 | 55-57 | 35-44 | ≤1.5 | ≤0.5 | ≤1.0 |
Physical Properties
| Crystal Form | Monoclinic,tetragonal system |
| Reaction with acid and alkali | no |
| Reaction with carbon | Forming carbide since 1650C |
| Color | Grey |
| True Density | 4.20g/cm3 |
| Bulk Density | 2.18g/cm3 |
| Moh’s hardness | 9.0 |
| Knoop hardness | 1450-2000kg/cm2 |
| Melting point | 1900C |
| Maximum service temperature | 1700C |
| Specific heat capacity(cal/g.C) | 0.2205(50-500C) |
| Heat conductivity | 0.2718 cal/cm2.sec.C |
| Linear expansivity(X10-6) | 6.82(100-700C) |
APPLICATION
- Making zircon fused alumina brick and building materials.
- Used for making bonded abrasives products,and process of grinding,sandblasting,surface treatment of metal products and other materials.
- With good melt erosion resistance,Zirconia fused alumina has good grinding effect on steel,iron casting,heat resistant steel and other alloy materials.
- Zirconia fused alumina can be made for heavy duty Zirconia fused alumina grinding wheel,snagging,cutting disc,Fiber disc,grinding rails,high speed abrasive belts etc.
- Used for making coated abrasives products.
- Used for making lapping paste,polishing wax,emery cloth,sandpaper etc.
