Joining Silicon Carbide Components for Space Propulsion

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,999.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
NNX11CE25P
Award Id:
n/a
Agency Tracking Number:
104585
Solicitation Year:
2010
Solicitation Topic Code:
S3.04
Solicitation Number:
n/a
Small Business Information
19501 144TH AVE NE, SUITE F-500, Woodinville, WA, 98072-4423
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
015577190
Principal Investigator:
Ender Savrun
Principal Investigator
(425) 485-7272
ender.savrun@siennatech.com
Business Contact:
Karen Valdastri
Business Official
(425) 485-7272
karen.valdastri@siennatech.com
Research Institution:
Stub




Abstract
This SBIR Phase I program will identify the joining materials and demonstrate the processes that are suited for construction of advanced ceramic matrix composite (CMC) thrusters for advanced monopropellants and bipropellants for space propulsion. We will join CMCs to each other and to superalloys by brazing. In Phase I, we will experimentally evaluate and identify suitable active metal braze alloys through wetting experiments, brazing, microstructural examination, and shear strength measurements both at room temperature and 1100ºC. We will also demonstrate the feasibility of using stiff and compliant interlayers to increase the joint strength by reducing the thermal residual stresses in the joints. The Phase II project will demonstrate a working CMC HAN thruster using the joining technology developed in Phase I.

* information listed above is at the time of submission.

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