NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
The use of carboranes as oxidation inhibitors for carbon-carbon compositesCarbon-carbon composites have many beneficial properties for use in aerospace applications, including their high specific strength and modulus at elevated temperatures. However, they share with all carbon based substances a strong tendency to burn when heated in air. In order to exploit their good qualities, it is necessary to slow or prevent their oxidation during use. Molecular inhibiters offer protection with the advantage of being able to form a homogeneous solution with the resin. Since boron oxides are known to provide the desired kind of protection, molecular compounds based on boron seem reasonable candidates to test as inhibitors. Performance tests indicated that carboranes are excellent materials for obtaining high uniform loadings of boron inhibitors in glassy carbon materials and thus reducing their rates of oxidation. Further, there is evidence that the use of substituted derivatives could provide more complete and thorough forms of protection.
Document ID
19920004636
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Petty, John T. (Longwood Coll. Farmville, VA, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1991
Publication Information
Publication: Old Dominion Univ., NASA/American Society for Engineering Ed
Subject Category
Composite Materials
Accession Number
92N13854
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available