Thermal Analysis of TBC Coated Superalloy for Industrial Gas Turbines

There is a continuous effort undergoing for improvement in efficiency of gas turbine from past few years since these engines are used in transportation, energy, power fields etc. The improvements in gas turbine efficiency can be achieved at high inlet temperature by using thermal-barrier coatings (TBCs). Due to expectations of obtaining higher efficiency there is continuous research and development happening across the globe in this field. The present paper discusses about the need of coating technologies and characteristics of TBC materials for improving the performance of gas turbines. The comparison of two types of coating process used on the blade surface of gas turbines has been explained for certain important parameters.