Innovative Joining of Ultra-High Temperature Ceramics (UHTC) for TPS Applications

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,998.00
Award Year:
2010
Program:
STTR
Phase:
Phase I
Contract:
FA9550-10-C-0084
Award Id:
94998
Agency Tracking Number:
F09B-T24-0179
Solicitation Year:
n/a
Solicitation Topic Code:
AF 09TT24
Solicitation Number:
n/a
Small Business Information
7800A South Nogales Highway, Tucson, AZ, 85756
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
066066874
Principal Investigator:
Zachary Wing
Director of Science & Technology
(520) 547-0861
zwing@acmtucson.com
Business Contact:
Stephen Turcotte
President
(520) 547-0850
sturcotte@acmtucson.com
Research Institute:
University of Arizona
Erica L Corral
PO Box 210012
1235 East James E. Rogers Way
Tucson, AZ, 85721
(520) 621-8115
Nonprofit college or university
Abstract
Ultra High Temperature Ceramics (UHTC's) such as zirconium and hafnium diboride based composites are of particular interest for hypersonic leading edges due to their extreme refractoriness. Successful integration into hypersonic structures will require high strength / high temperature joints to bond ceramic-ceramic or ceramic-metal that can sustain the mechanical and thermal loadings at speeds of Mach 5+. New materials and UHTC joining technologies are necessary to fully integrate and exploit their high temperature properties in hypersonic vehicles. Bonding materials that are similar to the joining pair materials are desirable to provide the best thermo-mechanical match to bulk materials. Spark Plasma Sintering (SPS) has become a novel approach to rapidly consolidate ceramics; however, it could be adapted to rapidly join UHTC pairs. A team comprised of Advanced Ceramics Manufacturing (ACM) and the University of Arizona propose the use of Off Stoichiometric UHTCs and a modified SPS sintering technique to produce a rapidly bonded UHTC-UHTC geometry with properties similar to that of the bulk joining pair. BENEFIT: The technology proposed offers a new material brazing system that will produce joints for UHTCs with properties similar to that of the bulk joining pairs. This will allow better, more complex geometries for thermal protections systems (TPS). The materials can be rapidly bonded using adapted Spark Plasma Sintering (SPS) technology which will allow joints to be formed quickly. This joining technology will have commercial applications for turbine engines and commercial space launch vehicles.

* 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