Plasma spraying

Plasma spraying is a thermal spray technology process used to coat surfaces. In this process, a coating material, which is in the form of powder or wire, is melted in a plasma jet and sprayed onto the surface of the substrate.

The process begins with the supply of a carrier gas, which is ionized by electrical energy to generate a plasma. The coating material and additional gas streams are injected into this plasma. The coating material melts and is sprayed onto the substrate in the form of fine particles, where it cools and solidifies into a solid coating layer.

Plasma spraying offers several advantages over other coating techniques. Firstly, it enables the coating of substrates of different shapes, sizes and materials, including heat-sensitive materials. Secondly, it offers a wide range of coating materials, including metals, ceramics, polymers and composites.

The coatings produced by plasma spraying have high adhesion strength and can provide a variety of properties, including wear resistance, corrosion resistance, thermal insulation, electrical insulation and surface smoothing.

Plasma spraying is used in a variety of applications, including surface coating of components in the aerospace, automotive, power generation, chemical and many other industries. It is an effective and versatile technique for improving the performance and durability of parts and components in demanding applications.