Performance evaluations of oxidation-resistant carbon-carbon composites in simulated hypersonic vehicle environmentsAn evaluation is made of the oxidation-protection requirements of carbon-carbon composite (CCC) structural components in a hypersonic vehicle aerothermodynamic environment, where maximum test temperatures in air are of the order of 2800 F, and pressures range from 0.03 to 1.0 atm. The specimens were exposed to high humidity between tests. Attention was given to the effects of coating composition and thickness, and of substrate architecture and surface preparation, on the oxidation resistance of CCCs. Both surface preparation and coating chemistry have a profound effect on coating adherence and longevity.
Document ID
19900061076
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Barrett, D. M. (NASA Langley Research Center Hampton, VA, United States)
Maahs, H. G. (NASA Langley Research Center Hampton, VA, United States)
Ohlhorst, C. W. (NASA Langley Research Center Hampton, VA, United States)
Vaughn, W. L. (Planning Research Corp. Hampton, VA, United States)
Martin, R. H. (National Research Council Hampton, VA, United States)