NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Current research in oxidation-resistant carbon-carbon composites at NASA. Langley Research CenterThe significant potential of carbon-carbon composites for high-temperature structural applications is well established. For hypersonic vehicle applications, desirable properties include low density, high specific strength and stiffness, low coefficients of thermal expansion, and retention of mechanical properties above 3000 F. A significant problem associated with carbon materials, however, is that they oxidize rapidly in air at temperatures above about 800 F, and therefore must be protected from oxidation. Successful development of effective methods of oxidation protection is key to the eventual utilization of carbon-carbon composites on hypersonic vehicles such as NASP. In this presentation, the basic elements of an oxidation-protection system are described. Results from oxidation-performance evaluations of state-of-the-art ACC-4 type material in simulated airframe vehicle environments (temperature, pressure, and time) conducted at NASA Langley are also presented. NASA Langley has an active research effort to improve the oxidation resistance of carbon-carbon materials for airframe structural and vehicle thermal protection applications. Conversion coating and sealant development research is highlighted.
Document ID
19930003268
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ohlhorst, Craig W. (NASA Langley Research Center Hampton, VA, United States)
Vaughn, Wallace L. (NASA Langley Research Center Hampton, VA, United States)
Barrett, David M. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1992
Publication Information
Publication: Current Technology for Thermal Protection Systems
Subject Category
Composite Materials
Accession Number
93N12456
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

IDRelationTitle19930003259Collected WorksCurrent Technology for Thermal Protection Systems
No Preview Available