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Oxidation Resistant Coatings Produced by Chemical Vapor Deposition :Iridium and Aluminum Oxynitride Coatings

Published online by Cambridge University Press:  21 February 2011

P. Netter  and
Ph. Campros
P. Netter
Affiliation:
VAPOMETALLURGY DIVISION COMURHEX, BP 29, 26701 PIERRELATTE Cedex FRANCE
Ph. Campros
Affiliation:
VAPOMETALLURGY DIVISION COMURHEX, BP 29, 26701 PIERRELATTE Cedex FRANCE
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Abstract

Oxidation resistant coatings of iridium on graphite, carbon/ carbon or molybdenum and of aluminum oxynitride on graphite and carbon/carbon have been produced by low pressure CVD from halide starting compounds (IrF6 and AlCl3). The resulting deposits are adherent, non porous and have proved to be impervious to oxygen in subsequent heating to 2000° C in air for more than 30 minutes (no evidence of deterioration).

These coatings materials are promising for effective protection against oxidation in rocket engines, gas turbines and thermal protection tiles space shuttles or against corrosion in the glass industry (iridium).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 168 , 1989 , 247
Copyright
Copyright © Materials Research Society 1990

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References

1.Machlin, B.A. and Lamar, P .A. Development of Improved Methods of Depositing Iridium coatings on Graphite, edited by AFML-TR-67–195 PtII, Air Force Materials Lab, Wright Patterson AFB, Ohio, Oct. 1968 (AD 843766).Google Scholar
2.Harding, J.T., Tuffias, R.H., Kaplan, R.B.Platinum Group Coatings for Refractory Metals edited by AFRPL-TR-84–035, Air Force Rocket Propulsion Laboratory, Edwards, California, June (1984).Google Scholar
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4.Suzuki, M. and Tansi, H., Proceedings of the Tenth International Conference on Chemical Vapor Deposition, 1089, (1987).Google Scholar