PROPERTIES
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.
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