Accession Number : ADD012806

Title :   Cryogenic Glass-to-Metal Seal.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Landram,Mark O

Report Date : 10 Mar 1987

Pagination or Media Count : 4

Abstract : A novel low temperature vacuum seal and method of making same for joining a nonmetallic element, such as an optical port, to a metallic element is described which comprises first and second thin metallic layers applied to the nonmetallic element to provide substantial adhesion and solderability to the nonmetallic element, and a third metallic layer applied to the metallic element to provide solderability to the metallic element, the nonmetallic and metallic elements being joined by a layer of low temperature solder interfacing their respective solder surfaces. A further thin metallic layer may be applied to the nonmetallic element to provide substantial wetability to the solderable second layer.

Descriptors :   *PATENTS, *CRYOGENICS, *GLASS SEALS, *METAL SEALS, *SEALS(STOPPERS), LOW TEMPERATURE, METALS, NONMETALS, OPTICAL PROPERTIES, PORTS(OPENINGS), ADHESION, LAYERS, SOLDERING, SURFACES, THINNESS, VACUUM

Subject Categories : Adhesives, Seals and Binders

Distribution Statement : APPROVED FOR PUBLIC RELEASE