TAPE

Period of Performance: 01/01/1984 - 12/31/1984

$48.9K

Phase 1 SBIR

Recipient Firm

Cordec Corp.
P.O. Box 188
Lorton, VA 22199
Principal Investigator

Abstract

RECENT DEVELOPMENTS IN THE MANUFACTURE OF METAL MATRIX COMPOSITE PRECURSORS BY PHYSICAL VAPOR DEPOSITION TECHNIQUES HAVE CREATED AN OPPORTUNITY TO FABRICATE HIGH-QUALITY, FINE-GAGE COMPOSITE WIRES HAVING PRECISE DIMENSIONS AND FIBER VOLUME FRACTIONS. SPECIALLY DESIGNED DIES WILL BE USED TO DRAW ION-PLATED GRAPHITE/ALUMINUM AND GRAPHITE/MAGNESIUM COMPOSITE TAPES INTO 1.8-MM DIAMETER COMPOSITE WIRES AND THE MATERIALS WILL BE CHARACTERIZED IN TERMS OF MECHANICAL PROPERTIES, DENSITIES, AND MICROSTRUCTURES. THE FEASIBILITY OF PRODUCING LOW-DENSITY, HIGH-MODULUS, HIGH-STRENGTH WIRES HAVING PRECISE DIMENSION AND A ZERO COEFFICIENT OF THERMAL EXPANSION (CTE) WILL BE DEMONSTRATED FOR ARBITRARY LENGTHS. DESIGN GUIDELINES WILL BE ESTABLISHED FOR A PILOT-SCALE PROCESS IN WHICH A PARAMETRIC OPTIMIZATION CAN BE CARRIED OUT (PHASE II).