Influence of Service Temperature on Grain Growth and Thermal Diffusivity of Nanostructured Thermal Barrier Coating

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The as-sprayed zirconia coating had an average grain size of 67 nm. Thermal treatment results showed that the grains of the nanostructured coating grew slightly below 900°C, whereas over 1000°C the gains grew rapidly. The thermal diffusivity of the coating increases with increasing heat-treatment temperatures.

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Periodical:

Materials Science Forum (Volumes 475-479)

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Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

3985-3988

Citation:

C. G. Zhou et al., "Influence of Service Temperature on Grain Growth and Thermal Diffusivity of Nanostructured Thermal Barrier Coating", Materials Science Forum, Vols. 475-479, pp. 3985-3988, 2005

Online since:

January 2005

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[1] Chen H., Zhou X. M. and Ding, C. X., J. Eur. Ceram. Soc., 2003, 23, 1449.

[2] Soyez G, Eastman JA, Thompson LJ, DiMelfi RJ, Bai GR, Baldo PM. Appl Phys Lett., 2000, 77(8), 1155.

[3] Gell, M., Mater. Sci. Eng., 1995, A204, 246.

[4] Kear, B. H. and Skaudan, G., Nanostruct. Mater., 1997, 8, 765.

[5] H. Chen, C.X. Ding, Surface and Coatings Technology, 2002, 150, 31.

[6] R.S. Lima, A. Kucuk, C.C. Berndt, Surface and Coatings Technology, 2001, 135, 166.

[7] Zhenbo Wang, Chungen Zhou, Huibin Xu. Chinese Journal of Aeronautics, in press.

[8] Klug, H P and Alexander, L E, X-ray Diffraction Procedures for Polystalline and Amorphous Materials. John Wiley & Sons, Inc, London, 1954: 148-154.

[9] Shaw, L L, Goberman, D, Ren, R, Goberman, D, Ren, R M, Gell, M, Jiang, S, Wang, Y, Xiao, T D and Strutt, P R, The dependency of microstructure and properties of nanostructured coatings on plasma spray conditions. Surf. Coat. Technol., 2000, 130: 1-8.

DOI: https://doi.org/10.1016/s0257-8972(00)00673-3

[10] L.T. Kabacoff, Thermal sprayed nano-structured thermal barrier coatings, NATO Workshop on Thermal Barrier Coatings, Aaalborg, Denmark, AGARD-R-823, 1998, paper 12.