Hybrid SiC-SiC/C-SiC Thermal Protection Structural Material

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$99,831.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
W9113M-09-C-0073
Agency Tracking Number:
B083-020-0107
Solicitation Year:
2008
Solicitation Topic Code:
MDA08-020
Solicitation Number:
2008.3
Small Business Information
3TEX, Inc.
109 MacKenan Drive, Cary, NC, 27511
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
030936335
Principal Investigator:
Keith Sharp
Senior Research Engineer
(919) 481-2500
sharpk@3TEX.com
Business Contact:
Patty Pennell
Corporate Accountant
(919) 481-2500
pennellp@3TEX.com
Research Institution:
n/a
Abstract
Thermal protection materials for ballistic missile kill vehicles must retain strength and stiffness at temperatures around 1500-2000oC in an oxygen rich environment, and isolate payload electronics from excessive heating. Weight is a concern, since lighter weight translates to higher velocity and kinetic energy. Further, the TPS materials must have a long service life, including the ability to withstand low level impact loads. Ceramic matrix composites provide an appealing material choice, with high strength at temperature, light weight, and resistance to thermal shock and impact. SiC-SiC composites exhibit oxidation resistance up to 1600oC, where C-SiC composites exhibit oxidation resistance, as well as high strength up to 1600„aC in inert environments. 3TEX, in conjunction with COI Ceramics, proposes a hybrid CMC structural material that combines an outer skin of SiC/SiC and an inner skin of C/SiC based on a unitary 3-D braided preform. The SiC/SiC outer skin will act as the thermal protection system (TPS) while the C/SiC inner skin will provide high specific stiffness and strength. Further, the C/SiC can be manufactured with pitch carbon yarns oriented to draw heat away from the leading edge surfaces, without allowing heat through the thickness of the skin into the payload.

* information listed above is at the time of submission.

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