Method for plating boron carbide on diamond surface
A diamond and boron carbide technology, applied in the field of boron carbide plating on diamond surface, to achieve the effect of improved erosion ability, stable performance and extended service life
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[0018] The 30-35 mesh diamond particles were ultrasonically cleaned with dilute nitric acid, acetone and alcohol for 10 minutes respectively. The cleaned diamond, boron powder (300 mesh, purity: 97%) and boric acid (purity: 99.99%) were ground with a mortar and mortar at a mass ratio of 1:1:1.6 for more than 1 hour. Use a high-temperature ceramic dry pot to hold the fully mixed raw materials and place them in a tube furnace. Turn on the mechanical pump to make the system vacuum less than 100 Pascals. The temperature in the furnace was raised to 300°C at a rate of 6°C / min and kept at 300°C for 30 minutes. The temperature in the furnace was further increased to 1200°C, and kept at 1200°C for 10 hours. The furnace temperature was lowered to room temperature while maintaining the system vacuum. Use a 40-mesh sub-sieve to separate the boron carbide-coated diamond particles from the remaining waste. Boil the separated boron carbide-coated diamond particles in dilute nitric acid ...
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