Thermal Coatings

Plasma spray is a thermal spray coating process used to produce a high-quality coating by a combination of high temperature, high energy heat source, a relatively inert spraying medium, usually argon, and high particle velocities.
Advantage of Plasma thermal spray
Thermal spraying allows much thicker coatings to be applied (often up to 10mm) in higher deposition rates than other coating methods, which provide a much more effective barrier against wear and tear.