Silicon carbide
Silicon carbide is produced by smelting high purity quartz sand and anthracite or petrol tar under high temperature in arc furnace. It’s harness between fused corundum and synthetic diamond. It widely used in grinding metallurgical building and refractory material.
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The carborundum has physics performance of low grade of high, hot coefficient of expansion of hardness.
Mohs scale 9.2-9.6
Vickers scale 2800-3300 |
