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Silicon Carbide Nozzle As Advanced Structural Ceramics
Description of ceramic nozzle
As a replacement of cemented carbide and aluminum oxide ceramic, Pressureless sintered silicon carbide has become the largest dosage material only second to boron carbide in the sand blasting industry. Although Aluminum oxide nozzle's price is low, but due to the low hardness, poor wear resistance, so it's only can be used in the situation of low workload. In the actual service, working life of pressureless sintered silicon carbide is 4-7 times of Aluminum oxide ceramic, more used as a replacement of high density cemented carbide.
| ►Key properties of pressureless sintered silicon carbide |
| ♦ Max Temperature up to 1650℃ |
| ♦ Low density:3.15-3.18 g/cm3 |
| ♦ High strength |
| ♦ Low thermal expansion : 4.0 (10-6/℃) |
| ♦ High thermal conductivity:120 W/m°K |
| ♦ High hardness:2800 HV5 |
| ♦ High elastic modulus: 410GPa |
| ♦ Superior chemical stability,resistance to acid and alkali corrosion (incld. hydrofluoric acid) |
