THE FEASIBILITY OF USING ULTRASONICS TO ENHANCE LIQUID METAL INFILTRATION OF REINFORCING YARNS AND FIBERS

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$145,000.00
Award Year:
1984
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
857
Agency Tracking Number:
857
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
666 North Hague Avenue, Columbus, OH, 43204
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Joseph A. Moore
(614) 272-5785
Business Contact:
() -
Research Institute:
n/a
Abstract
SEVERAL NEW CLASSES OF LOW DENSITY, HIGH STRENGTH, HIGH MODULUS YARNS AND FIBERS SUITABLE FOR REINFORCING METAL MATRIX COMPOSITES HAVE EMERGED WITHIN THE LAST DECADE; AMONGST THESE ARE THE GRAPHITE YARNS, THE SILICON CARBIDE FIBERS AND YARNS. UNFORTUNATELY, THESE YARNS ARE NOT READILY WETTED BY METALS AT STANDARD MELT TEMPERATURES, BUT REQUIRE EITHER COATINGS OR SUPERHEATED MELTS TO ACCOMPLISH WETTING. MCI HAS DEVELOPED THE TIB COATING PROCESS WHICH HAS BEEN SUCCESSFUL FOR CONVERTING THESE FIBERS INTO PRECURSOR METAL MATRIX COMPOSITES. OCCASIONALLY THE COATING DOES NOT COMPLETELY PENETRATE THE YARN TOW CAUSING A VOID OR UNINFILTRATED ZONE. THE USE OF ULTRASONICALLY ENHANCED INFILTRATION MAY: ELIMINATE DEFECTS, VOIDS IN INFILTRATED AREAS, PERMIT DIRECT INFILTRATION WITHOUT ACTIVATION COATING(S), REDUCE NECESSITY FOR SUPERHEATED MELTS TO INFILTRATE YARNS AND FIBERS.THIS CONCEPT, IF FEASIBLE, MAYBE TRANSITIONED TO THE INFILTRATION OF WOVEN TAPES AND FIBER PREFORMS. THE OBJECTIVE OFTHIS PROPOSED PHASE I EFFORT IS TO ESTABLISH THE FEASIBILITY FOR ENHANCING THE KINETICS OF INFILTRATING YARNS AND FIBERS TO INCREASE THE QUALITY OF COMPOSITES AND LOWER COSTS.

* 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