Overview Nano-sized silicon carbide has the reputation of "the king of toughening materials". The use of a small amount (1wt%-10wt%) of silicon carbide nano-sized powder in engineering materials can achieve significant improvements in the their mechanical properties. This can greatly broaden the service lifetime and application occasions of the reinforced materials. In addition, if we use nano-silicon carbide in passive armor for security and defense, as well as diesel particulate filters in the industrial and automotive industries, we can achieve a substantial increase in performance. Application (1) Improving the toughness of engineering ceramics Nano-sized silicon carbide powders can be employed as the reinforcement agents, which is confirmed that of the reinforced engineering ceramics such as silicon carbide, alumina, zirconia, etc. achievement of enhancement on toughness more than 30%. (2) Densification in microchannel reactor The existing silicon carbide microchannel reactors have the problem of serious leakage as serving under a high pressure state. In the case of nano-sized silicon carbide powders being employed as the reinforcement at a 3-10 wt%, the leakage of SiC microchannel reactor can be well overcame. (3) Playing as toughening agents for polymer composite materials Nano-sized SiC powder has good compatibility, good dispersibility and good matrix bonding in polymer composite materials. After the addition of nano-sized SiC powders, the tensile strength of high-strength nylon can be increased by more than 1.3 times, and the wear resistance can be increased by more than 2 times. |
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