Interlaminar Tensile Strength Testing of CMCs at High Temperatures Enabled by Oxidation Resistant Ceramic Cement Derived from ZrB2-SiC Precursor

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$665,224.00
Award Year:
2011
Program:
SBIR
Phase:
Phase II
Contract:
N68335-11-C-0064
Award Id:
n/a
Agency Tracking Number:
N082-154-0562
Solicitation Year:
2008
Solicitation Topic Code:
N08-154
Solicitation Number:
2008.2
Small Business Information
3013 Aztec Road NE, Albuquerque, NM, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
099725108
Principal Investigator:
LarryKepley
President
(505) 830-6986
ljkepley@thortech.biz
Business Contact:
LarryKepley
President
(505) 830-6986
ljkepley@thortech.biz
Research Institute:
Stub




Abstract
This Phase II effort will demonstrate a standard method of measuring the high-temperature, inter-laminar tensile (HT-ILT) strength of ceramic-matrix composites (CMCs). Jet engines with higher turbine gas temperatures for higher specific thrust and efficiencies require the use of SiC/SiC CMCs with known mechanical properties at high temperature (2300 degrees F). The typically poor ILT strength of CMCs containing 2-D woven fibers imposes artificial limits on the design of hot section components. The method is needed by engine developers to avoid the expense of over-built airfoil components, particularly rotating components. It would not only help determine the design limits of CMC materials, but also aid the discovery of ways to improve ILT strength. Furthermore, HT-ILT testing could be used to screen materials for processing defects and qualify them for service (i.e., quality assurance testing as well as studies of material fatigue). The program will extend the room-temperature method, ASTM C1468 for ILT testing of CMCs, to testing at =2400 degrees F, by demonstration and validation of a new ceramic-based adhesive capable of 6 ksi strength at high temperatures.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government