In recent years, the preparation methods of ultrafine silicon carbide powders developed in the high-tech field are mainly divided into three types: solid phase method, liquid phase method and gas phase method. The solid-phase method has cheap raw materials, stable quality, and is easy to realize industrial production. It is mainly divided into carbothermal reduction method, Si and C direct reaction method (including high-temperature self-propagating synthesis method and mechanical alloying method); liquid phase method can obtain high purity The nano-sized fine powder is mainly divided into sol-gel method, polymer thermal decomposition method and solvothermal method; the powder obtained by the gas phase method has high purity, less agglomeration of particles, and easy control of components, but has high cost, low yield, and is not easy to achieve large Mass production is mainly divided into gas phase reactive deposition (CVD), plasma method, laser induced gas phase method and so on.

China's scientific research team has carried out countless tests for the development of new aircraft carrier deflector coating materials, and it took less than 3 years to optimize the materials that are most suitable for protection and maintenance needs. Due to the use of a high-quality and efficient automated thermal spraying process, only one person can quickly complete the maintenance of the wear area, which can ensure that the aircraft carrier expedition to the ocean is not troubled by the deflector maintenance problem. At present, based on the R & D and production experience of the first-generation aircraft carrier deflector multifunctional protective coating, China has developed the second-generation coating material, which has better anti-slip, anti-corrosion, heat resistance, and impact resistance properties.