Accession Number : AD0477631

Title :   ON THE PROPERTIES AND APPLICATIONS OF VACUUM-TIGHT CERAMICS IN VACUUM TECHNIQUES (PRISPEVOK KU PROBLEMATIKE VLASTNOSTI A POUZITIA VAKUOVOTESNEJ KERAMIKY VO VAKUOVEJ TECHNIKE),

Corporate Author : ASSISTANT CHIEF OF STAFF FOR INTELLIGENCE (ARMY) WASHINGTON DC

Personal Author(s) : Harman, Rudolf

Report Date : 22 JUN 1961

Pagination or Media Count : 19

Abstract : This article evaluates reports on vacuum-tight, mostly low-loss ceramics, and points out the problems encountered in producing ceramic-metal seals (ceramic-to-metal bonding). The critique dealing with the most important properties of vacuum-tight ceramics discusses their drawbacks and advantages for application for vacuum techniques, primarily those used with thermionic tubes. The final analysis arrives at pertinent conclusions and recommendations as to the application of vacuum-tight ceramics. The article also reports on some new ceramic materials. (Author)

Descriptors :   *VACUUM SEALS), (*CERAMIC MATERIALS, MANUFACTURING, MOLDINGS, CASTING, BONDING, METALS, ELECTRON TUBES, HIGH TEMPERATURE, THERMAL PROPERTIES, MECHANICAL PROPERTIES, DIELECTRIC PROPERTIES, CRYSTAL STRUCTURE, CZECHOSLOVAKIA.

Subject Categories : Electrical and Electronic Equipment
      Adhesives, Seals and Binders
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE