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Nitrogen-carbon bonded silicon carbide products exhibit excellent properties as wear-resistant materials
- Sep 26, 2018 -

Silicon nitride combined with silicon carbide wear-resistant material is a very representative nitrogen-carbon bonded silicon carbide product, its characteristics mainly manifest in many aspects, first of all, good thermal shock resistance and high temperature creep resistance. If the size is kept constant during the hot and cold cycle, when the temperature is cooled from 1300 ° C to 20 ° C, it takes hundreds of heating cycles, but this will not damage the material and effectively shorten the firing cycle.


In addition, in the manufacturing process of such a nitrogen-carbon bonded silicon carbide product, the dimensional change thereof is less than 1%, and due to the lack of the glass phase, the material does not substantially deform under high temperature conditions, and thus the waste product and the product are deformed. The situation will not happen.


Good oxidation resistance, abrasion resistance and corrosion resistance are also excellent characteristics of nitrogen-carbon bonded silicon carbide products, which can withstand most of the alkali corrosion and inorganic acid corrosion; can effectively resist the molten aluminum and aluminum alloy melt Wetting and corrosion of non-ferrous metals, good insulation at high temperature points.


In addition, nitrogen-carbon bonded silicon carbide products have strong flexural strength, and their room temperature flexural strength is twice that of clay silicon carbide products. If the amorphous phase is not included, the room temperature is maintained in the range of 1200 ° C to 1400 ° C, and the strength of the wear resistant material is further increased to 9 times that of the clay silicon carbide product.