With the help of coatings obtained work pieces gets specific surfaces properties, which the carrier material did not have. Therefore, different strains are simultaneously fulfilled. The shape and material of the carrier will be determined largely by the required mechanical properties. The burden of the environment determines the selection criteria for a protective layer and determines the coating process.
We speak of a material and a structural factor that must be optimized for both.
The modern surface technology is characterized by a variety of coating methods with practically no longer manageable range of applications. It begins with a simple coat of paint to embellish a surface layer optically and ends with complex systems, e.g. Multilayer ceramic on carbide tools, plasma-enhanced deposited from the gas phase. The classification of the coating process is done with the physical states of the coating material immediately prior to the coating production.
Each coating process and produced coating layer have permanent to demonstrate, that the used technique will be the best. Ultimately, a coating will be successful if its properties are a better and cheaper alternative.
