The Technology of TBC Deposition by EB-PVD Method

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Abstract:

The role of thermal barrier coatings is to ensure heat resistance of elements in the hot section of turbofan aircraft engines in high temperatures. Stages of the production process are made up of preparing the base material, forming the aluminide interlayer by chemical vapour deposition method and depositing of the ceramic coating. The paper presents results of tests into microstructure of ZrO2 and Y2O3 ceramic coatings formed by EB-PVD method. The microstructure was assessed in several spots of the turbine blade of a high pressure turbofan engine by means of determining the coating thickness as well as height and width of ceramic columns, depending on the forming conditions.

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Periodical:

Solid State Phenomena (Volume 227)

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377-380

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January 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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[1] J. Singh et al., Electron beam-physical vapor deposition technology–present and future applications. Publication of Applied Research Laboratory, Pennsylvania State University, University Park, (2000).

Google Scholar

[2] J.A. Haynes, et al. Characterization of commercial EB-PVD TBC systems with CVD (Ni, Pt) Al bond coatings, Surf. Coat. Tech. 146 (2001) 140-146.

DOI: 10.1016/s0257-8972(01)01483-9

Google Scholar

[3] A. Weisenburger, et al., Pulsed electron beam treatment of MCrAlY bondcoats for EB-PVD TBC systems part 1 of 2: Coating production, Surf. Coat. Technol. 202(4) (2007) 704-708.

DOI: 10.1016/j.surfcoat.2007.07.022

Google Scholar

[4] J.E. Schilbe, Substrate alloy element diffusion in thermal barrier coatings. Surf. Coat. Tech. 133 (2000) 35-39.

DOI: 10.1016/s0257-8972(00)00870-7

Google Scholar

[5] H.U. Minghui, et al. TEM study on microstructure of thermally grown oxide in EB-PVD thermal barrier coatings, Surf. Coat. Tech. 200(20) (2006) 6130-6136.

DOI: 10.1016/j.surfcoat.2005.09.037

Google Scholar

[6] M. Góral, et al., Microstructure of Thermal Barrier Coatings (TBC's) Obtained by Using Plasma Spraying and VPA Methods, Mater. Sci. Forum (2012) 2412-2417.

DOI: 10.4028/www.scientific.net/msf.706-709.2412

Google Scholar

[7] M. Góral, et al., PS-PVD deposition of thermal barrier coatings, Surf. Coat. Tech. 237 (2013) 51-55.

Google Scholar