THE EXCELLENT PROPERTIES OF CARBON-CARBON (C/C) COMPOSITES MAKE THESE MATERIALS PRIME CANDIDATES FOR HIGH TEMPERATURE RESISTANT STRUCTURES ON ADVANCED MISSILES.

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,988.00
Award Year:
1986
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
3902
Agency Tracking Number:
3902
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Biddeford Industrial Pk, Biddeford, ME, 04005
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
JOHN W HERRICK
(207) 282-5911
Business Contact:
() -
Research Institute:
n/a
Abstract
THE EXCELLENT PROPERTIES OF CARBON-CARBON (C/C) COMPOSITES MAKE THESE MATERIALS PRIME CANDIDATES FOR HIGH TEMPERATURE RESISTANT STRUCTURES ON ADVANCED MISSILES. HOWEVER, C/C COMPONENTS MUST BE JOINED TOGETHER TO PRODUCE A FINAL STRUCTURE. THE USE OF ADHESIVE BONDING AND METALLIC FASTENERS IS NOT PRACTICAL AT HIGH TEMPERATURES. THE MOST DESIRABLE FASTENER TO JOIN C/C COMPOSITES TOGETHER WOULD BE FABRICATED FROM C/C TO MAINTAIN GOOD STRENGTH AT TEMPERATURES TO AT LEAST 2500 DEG F ALONG WITH LIGHTWEIGHT AND LOW COEFFICIENT OF THERMAL EXPANSION. FABRIC REINFORCE (2-D)C/C WILL NOT BE SUITABLE BECAUSE OF LOW SHEAR STRENGTH. A PROGRAM IS PROPOSED TO DEVELOP AND EVALUATE ECONOMICAL 3-D AND 4-D C/C COMPOSITES AS FASTENERS TO JOIN C/C COMPOSITE PANELS TOGETHER. AFTER FASTENER REQUIREMENTS DEFINITION AND DESIGN TASKS, 3D AND 4D PERFORMS WILL BE WOVEN WITH HIGH STRENGTH CARBON FIBERS. ALL WEAVING WILL BE DONE ON FULLY AUTOMATED LOOMS FOR MINIMUM COST. C/C PANELS WILL BE FULLY DENSIFIED BY A PROCESS THAT CAN BE SCALED UP TO A LOW COST MANUFACTURING PROCEDURE. THREADED RODS AND NUTS WILL BE MACHINED FROM THE 3D AND 4D C/C AND EVALUATED FOR MECHANICAL AND THERMAL EXPANSION PROPERTIES. A DEMONSTRATION C/C BOLTED JOINT WILL BE FABRICATED.

* information listed above is at the time of submission.

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