How to detect the hardness of black silicon carbide?

The industrial process of black silicon carbide is to use quartz sand and petroleum coke in resistance furnace refining. Refined silicon carbide block, by crushing, acid-base washing, magnetic separation and screening or water separation and made into a variety of particle size products. So how to detect the hardness of black silicon carbide?

Silicon carbide is also between corundum and diamond, mechanical strength is higher than corundum wear-resistant material. And has better wear resistance is the choice of abrasive material. Grinding wheel wear-resisting or not, consumption speed and slow through simple test can obtain more accurate data. Black silicon carbide hardness detection methods are as follows: atomic absorption: This detection method can detect the content of silicon, judge the hardness of black silicon carbide, the detection value is relatively accurate. Resistance particle analysis: The resistance particle analyzer is used to measure the particle size of black silicon carbide, which can judge the cutting of black silicon carbide, detection efficiency is relatively high.