Plasma Ceramic Coating

Plasma spraying is a material surface strengthening and surface modification technology, that can make the surface of the substrate with wear-resistant, corrosion-resistant, high-temperature oxidation-resistant, electrically insulating, heat-insulating, radiation-resistant, abrasion-reducing, and sealing properties. Plasma spraying technology is the use of a DC-driven plasma arc as a heat source, ceramics, alloys, metals, and other materials heated to a molten or semi-molten state, and sprayed at high speeds to the surface of the pre-treated workpiece and the formation of a solidly adhered to the surface layer of the method. Plasma spraying is also used in medical applications, where a coating of tens of microns is sprayed on the surface of artificial bones as a way to strengthen them and enhance their affinity.
Plasma spraying is a new multi-purpose precision coating method developed after flame spraying. It has the following features: ① Ultra-high-temperature characteristics, which facilitates the coating of high melting point materials. ② high speed of spray particles, dense coating, high bonding strength. (iii) Since inert gas is used as the working gas, the sprayed material is not easy to oxidise.