Accession Number : AD0610837

Title :   SOLDER-GLASS SEALING OF MICROWAVE ANTENNA WINDOWS,

Corporate Author : HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s) : Blomquist,T. V.

Report Date : 13 NOV 1964

Pagination or Media Count : 15

Abstract : Simple solder-glass techniques are described for vacuum-tight sealing of mica and glass microwave windows in a metal frame having a compatible coefficient of thermal expansion. The seal is made by applying 0.020 in. diameter threads of Corning No. 7570 solder glass to heated frame and window. A hand torch and quartz boat proved satisfactory for heating with mica of thicknesses of 0.003 in. or greater. A simple cone resistance heater with variac and a metal table provided more precise heating for sealing thinner windows. The materials are inexpensive; the procedure and equipment are simple. (Author)

Descriptors :   (*WAVEGUIDE WINDOWS, GLASS SEALS), (*GLASS SEALS, WAVEGUIDE WINDOWS), (*METAL SEALS, WAVEGUIDE WINDOWS), STAINLESS STEEL, VACUUM SEALS, THERMAL EXPANSION, MICA

Distribution Statement : APPROVED FOR PUBLIC RELEASE