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Microstructural Characterization of a Zirconia-Titania-Yttria Thermal Barrier Coating

Published online by Cambridge University Press:  15 February 2011

P. Diaz ,
B. Ralph  and
M. J. Edirisinghe
P. Diaz
Affiliation:
Department of Materials Technology, Brunel University, Uxbridge, Middlesex, UB8 3PH, U.K.
B. Ralph
Affiliation:
Department of Materials Technology, Brunel University, Uxbridge, Middlesex, UB8 3PH, U.K.
M. J. Edirisinghe
Affiliation:
Department of Materials Technology, Brunel University, Uxbridge, Middlesex, UB8 3PH, U.K.
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Abstract

The phase transformations in a plasma sprayed zirconia-titania-yttria thermal barrier coating (TBC), subjected to different thermal treatments, in the temperature range 900–1400°C, were characterized by X-ray diffraction (XRD). Different transformation trends dependent on the cooling rate of the specimens from the treatment temperature, were observed. The study of the fracture surfaces of the as-sprayed and thermally treated ceramic coatings, using scanning electron microscopy (SEM), allows elucidation of the changes in the microstructure and the fracture mechanisms. The as-sprayed and thermally treated (1400°C) ceramic microstructures were also studied using transmission electron microscopy (TEM).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 403: Symposium I – Polycrystalline Thin Films: Structure, Texture, Properties and Applications II , 1995 , 253
Copyright
Copyright © Materials Research Society 1996

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References

1. Nettleship, I. and Stevens, R., Int. J. High Techn. Ceram. 6, 1 (1987).Google Scholar
2. Gupta, T., Bechtold, J. arid Kvznicki, R., J. Mater. Sci. 12, 2421 (1977).Google Scholar
3. Garvie, R., J. Amer. Ceram. Soc. 20, 23 (1984).Google Scholar
4. Brandon, J. and Taylor, R., Surf. and Coat. Tech. 39/40, 143 (1989).Google Scholar
5. Pandolfelli, V., Nettleship, I. and Stevens, R., in Complex Microstructure, edited by Stevens, R. (Proc. Brit. Ceram. Soc. 48, London, 1989) p. 139.Google Scholar
6 Ingel, R. and Lewis, D., in Advances in Ceramics: Science and Technology of Zirconia III, edited by Somiya, S., (Amer. Ceram. Soc. 24, 1988) p. 385.Google Scholar
7. Pyda, W., Haberko, R. and Bucko, M., Ceramics International 18, 321 (1992).Google Scholar
8. Idem, , in Science and Technology of Zirconia V, edited by Badwal, S. (Technomic Publishing Co., Pensylvania, USA, 1993) p. 137.Google Scholar
9. Pandolfelli, V., Rainforth, W. and Stevens, R., in Euroceramics: Properties of Ceramics 2, edited by de, G. With (Elsevier, London, 1989) p. 16 1.Google Scholar
10. Kountouros, P. and Petzow, G., in Science and Technology of Zirconia V, edited by Badwal, S. (Technomic Publishing Co., Pensylvania, USA, 1993) p. 161.Google Scholar
11. Lin, C., Mater. Sci. and Eng. A 129, 147 (1990).Google Scholar
12. McPherson, R., J. Aust. Ceram. Soc. 20, 23 (1984).Google Scholar
13. Miller, R., Surf. and Coat. Tech. 30, 1 (1987).Google Scholar
14. Sun, J., Surf. and Coat. Tech., 58, 93 (1993).Google Scholar
15. Technical Bulletin of METCO Inc., New York, U.S.A., No 143, October 1994.Google Scholar
16. Diaz, P., Edirisinghe, M.J. and Ralph, B., J. Mater. Sci. Lett. 13, 1595 (1994).Google Scholar
17. Iwamoto, N., Umesably, N. and Endo, S., Thin Solid Films 127, 129 (1985).Google Scholar