Thermal Barrier Coatings For Gas Turbine Engine Applications

Hundreds of different types of coatings are used to protect a variety of structural engineering materials from corrosion wear and erosion and to provide lubrication and thermal insulation.

Thermal barrier coatings for gas turbine engine applications. Of all these thermal barrier coatings tbcs have the most complex structure and must operate in the most demanding high temperature environment of aircraft and industrial gas turbine engines. Plasma sprayed yttria stabilized zirconia tbc currently is bill of material on many commercial jet engine parts. Although successful in gas turbine applications thermal barrier coatings tbcs produced by suspension plasma spraying sps processes have not been employed so far in the automotive industry. Thermal barrier coatings tbcs have been used for almost three decades to extend the life of combustors and augmentors and more recently stationary turbine components.

Gas turbine engines internal combustion parts etc. Tbcs which comprise metal and ceramic multilayers insulate turbine and combustor engine components from the hot gas stream and improve the durability. In the previous. Thermal barrier coatings tbcs are often used to protect the components subjected to high temperature applications viz.

Of all these thermal barrier coatings tbcs have the most complex structure and must operate in the most demanding high temperature environment of aircraft and industrial gas turbine engines. Thermal barrier coatings tbcs are advanced materials systems usually applied to metallic surfaces operating at elevated temperatures such as gas turbine or aero engine parts as a form of exhaust heat management these 100 μm to 2 mm thick coatings of thermally insulating materials serve to insulate components from large and prolonged heat loads and can sustain an appreciable temperature.