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HfB2-SiC Materials for Sharp Leading EdgesFuture reentry vehicles will need better maneuverability to improve safety and performance. Vehicles with sharp leading edges, as opposed to the blunt nose and leading edges on the current space shuttle, can provide improved lift-to-drag and thus improved maneuverability. Materials capable of operating at temperatures in excess of 2000 C are required. Ultrahigh temperature ceramics (UHTCs) are one class of material being investigated for this application. These materials are diborides of hafnium or zirconium with a second phase of sic. The benefits of using these materials will be discussed as developments in the processing of HfB2/SiC.
Document ID
20030014611
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Johnson, Sylvia M.
(NASA Ames Research Center Moffett Field, CA United States)
Ellerby, Don
(NASA Ames Research Center Moffett Field, CA United States)
Irby, Edward
(NASA Ames Research Center Moffett Field, CA United States)
Beckman, Sarah
(Eloret Corp. Moffett Field, CA United States)
Gusman, Michael
(Eloret Corp. Moffett Field, CA United States)
Gasch, Matthew
(Eloret Corp. Moffett Field, CA United States)
Venkatapathy, Ethiras
Date Acquired
August 21, 2013
Publication Date
November 2, 2002
Subject Category
Composite Materials
Meeting Information
Meeting: 105th Annual Meeting and Exposition of the American Ceramic Society
Location: Nashville, TN
Country: United States
Start Date: April 27, 2003
End Date: April 30, 2003
Sponsors: American Ceramic Society
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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