Accession Number : AD0285214

Title :   TUNGSTEN TO GRAPHITE BONDING

Corporate Author : WHITTAKER CORP SAN DIEGO CALIF NARMCO RESEARCH AND DEVELOPMENT DIV

Personal Author(s) : ARMSTRONG,J. RALPH ; LONG,ROGER A.

Report Date : 30 SEP 1962

Pagination or Media Count : 1

Abstract : Tungsten to graphite carbide based bonds were evaluated as to tensile strength vs. temperature and thermal shock resistance. Tensile strengths varied from 530 psi at room temperature to 193 psi at 4000 F. No thermal shock failures were observed under the test conditions, 3500 F in ten seconds to a maximum temperature of 4425 F, followed by cooling to below red heat in 15 sec. The bonding procedure used for the data evaluation specimens had to be modified when the process was applied to the bonding of cylindrical tungsten inserts to segmented graphite backup structures. (Author)

Descriptors :   *BONDING, *CARBIDES, *GRAPHITE, *TUNGSTEN, ALLOYS, COATINGS, FAILURE (MECHANICS), HIGH TEMPERATURE, INDUCTION HEATING, MANUFACTURING, MATERIALS, MECHANICAL PROPERTIES, PROCESSING, SHOCK RESISTANCE, TEMPERATURE, TENSILE PROPERTIES, TEST EQUIPMENT, TESTS, THERMAL CONDUCTIVITY, THERMAL STRESSES, TUNGSTEN ALLOYS, VANADIUM ALLOYS

Distribution Statement : APPROVED FOR PUBLIC RELEASE