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UHTC Composites for Leading EdgesUltrahigh temperature ceramics (UHTC) have performed unreliably due to material flaws and attachment design. These deficiencies are brought tot he fore by the low fracture tougness and thermal shock resistance of UHTC. In addition, poor oxidation resistance is a limitation on UHTC applicability to reusable launch vehicles. We have been addressing these deficiencies for the past two years via a small task at GRC that is in the Airframe part of the Next Generation Launch Technology Program. Our focus is on UHTC composite (UHTCC) constructions and functional grading to address the mechanical issues and on composition modification to address the oxidation issue. Processing, mechanical property, and oxidation resutls will be reported.
Document ID
20050051732
Acquisition Source
Glenn Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Levine, Stanley R. (NASA Glenn Research Center Cleveland, OH, United States)
Opila, Elizabeth J. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2004
Subject Category
Composite Materials
Meeting Information
Meeting: 2004 National Space and Missile Materials Symposium (NSMMS)
Location: Seattle, WA
Country: United States
Start Date: June 21, 2005
End Date: June 25, 2005
Funding Number(s)
WBS: WBS 713-76-32
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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