Surface Engineering at High Temperature

Abstract

Thermal and chemical properties are key aspects that determines whether a coating material is useful for high temperature applications. The progress in the application of coatings as high performance and functional materials is currently driven by their reliability under changing environmental conditions. Particularly, for high temperature applications, new gas turbines, propulsion systems, and cutting tools are outstanding examples for the development of enhanced coating systems. With the increase in the complexity of applications of coatings at high temperature, it became necessary that engineers and designers look inside into various aspects of material properties. In that order of ideas, this chapter focuses on reviewing the main physical and chemical concepts related with the performance of engineering coatings at high temperature. Especially, the subjects for reviewing here are thermal shock and hot corrosion.