Development in Research on TBC Deposition Technologies

With the elevation of inlet working temperature of gas turbine engine,thermal barrier coatings (TBCs)are receiving a great deal of attention.In this paper,prevailing TBC deposition technologies,including plasma spray,electron beam-physical vapor deposition,ion beam assisted film deposition and chemical vapor deposition,are reviewed.The principles of each technology are introduced and the technical characteristics are analyzed.The microstructure,service life and application field of the coatings produced by each technology are also described and compared.It is pointed out ion beam assisted film deposition and chemical vapor deposition have great potential for producing novel TBCs with high performance in the future.