Fabrication of High Temperature Metal Matrix Composite Tubes by Vapor Deposition Methods

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$49,985.00
Award Year:
1993
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
20532
Agency Tracking Number:
20532
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
8270-b Cinder Bed Road, P.o., Box 188, Lorton, VA, 22079
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. R. J. Weimer
(703) 550-8044
Business Contact:
() -
Research Institute:
n/a
Abstract
Advanced turbine engines and flight vehicles will depend upon new, high-temperature metal matrix composites (MMC's) to meet performance goals. Engineering characterization of such materials is difficult and costly, which accounts for the meager property database available to designers. Thin-walled tubes would be especially useful for developing constitutive relations and failure criteria under multiaxial (T-C/Torsion) combined loads (thermal and mechanical, static and dynamic). This project will develop a process for manufacturing and consolidating MMC precursor wire into high quality tublar specimens by hot isostatic pressing. The MMC wire will be fabricated by a physical vapor deposition process which applies diffusion barriers (if needed) and matrix metal onto a continous ceramic monofilament. The wire is a microcomposite of the final structure, carrying precisely the amount of matrix needed to achieve the desired final volume fractions. Phase I will establish the feasibility of this approach to making high temperature MMC thin-walled tubes. Phase II would demonstrate reproducible pilot scale production of high-quality tubes and, in the process, establish protocols for fabricating more complex engineering structures from these new materials.

* 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