Low-Temperature Joining of SiC-Matrix Composites

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,860.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
NNX11CE07P
Award Id:
n/a
Agency Tracking Number:
104907
Solicitation Year:
2010
Solicitation Topic Code:
O2.04
Solicitation Number:
n/a
Small Business Information
12345 W. 52nd Ave., Wheat Ridge, CO, 80033-1916
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
181947730
Principal Investigator:
MichaelDiener
Principal Investigator
(303) 940-2347
mikee@tda.com
Business Contact:
JohnWright
Vice President
(303) 940-2300
krhodus@tda.com
Research Institute:
Stub




Abstract
The outstanding properties of silicon carbide (SiC) include excellent specific strength, extreme chemical resistance, tremendous hardness, and retention of its high strength at very high temperatures. The brittleness typically associated with a ceramic can be mitigated by forming composites with either carbon or SiC fibers. However, the processes for forming SiC matrix composites limit the size and complexity of the resulting shapes. It is therefore necessary to develop techniques for efficiently joining SiC matrix composite parts. Many such methods have been proposed over the past 25 years, but none is satisfactory, and it remains an active area of research. The joints formed so far either require extremely high temperatures to manufacture or result in unsatisfactory mechanical properties. TDA is herein proposing a route that will result in a pure SiC bond, and will achieve it without requiring any external heat source. As such the joint will be robust, and have the same temperature capabilities and mechanical properties as the matrix. The technology will have met the criteria for exiting technical readiness level (TRL) 3, and some of the criteria for TRL 4, by the end of the Phase I period.

* information listed above is at the time of submission.

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