Accession Number : AD0271429

Title :   DEVELOPMENT OF EXO-REACTANT INORGANIC ADHESIVE SYSTEM

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

Personal Author(s) : BASSETT,WILLIAM ; CAUGHEY,ROBERT ; LONG,ROGER A.

Report Date : 31 JAN 1961

Pagination or Media Count : 1

Abstract : Combination metal-oxide and metal-glass exothermic systems were developed. These exothermicAg base and Cu base adhesives gave metallic bonds which on the basis of stainless steel tensile lap shear strengths showed strengths in excess of 9000 psi at all temperatures up to 800 F. The process consisted of combining reactive and inert constituents that produced a fluid glass, which could be squeezed out of the bond area, and a stainless steel wetting alloy that remained in the bond area as a braze filler metal. The adaptation of the Ag base exo-reactant adhesive systems to stainless steel honeycomb panel bonding was accomplished. Exothermic adhesive bonded stainless steel 15-7 Mo honeycomb panels were evaluated and compared with equivalent tested conventionally brazed panels. The exothermically bonded stainless steel panels gave flexure and edgewise compression strengths of 84,300 and 61,900 compared to 160,000 and 115,000 psi, respectively, provided by the conventionally furnace brazed panels. (Author)

Descriptors :   *ADHESIVES, *HONEYCOMB CORES, *METAL SEALS, *SANDWICH PANELS, *STAINLESS STEEL, BONDED JOINTS, BONDING, BRAZING, CERAMIC MATERIALS, COMPRESSIVE PROPERTIES, COPPER ALLOYS, GLASS, HIGH PRESSURE, HIGH TEMPERATURE, MATERIALS, MECHANICAL PROPERTIES, METAL JOINTS, PROCESSING, SHEETS, SILVER ALLOYS, TENSILE PROPERTIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE