Accession Number : ADD013405

Title :   Gold Based Electrical Contact Materials, and Method Therefor.

Descriptive Note : Patent, Filed 17 Apr 81, patented 3 May 83,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Desai, Jaydev D

Report Date : 03 May 1983

Pagination or Media Count : 3

Abstract : There is presented gold based contact materials fabricated by internal carburization and method therefor. Carburizable refractory elements are carburized by internal carburization by exposing a gold based solid solution containing the refractory element to an atmosphere of a gaseous oxide of carbon at an elevated temperature. The elevated temperature is chosen to be below the melting point of the solid solution and high enough to cause gaseous decomposition of a carbon material packed with the solid solution within an enclosing container. The carburizable refractory element with the solid solution is preferentially carburized by the gaseous oxide of carbon to form hard, refractory second phase carbide particles within the gold matrix.

Descriptors :   *CARBURIZING, *GOLD, *PATENTS, *ELECTRIC CONTACTS, *REFRACTORY MATERIALS, CARBON, DECOMPOSITION, GASES, HIGH TEMPERATURE, INTERNAL, MELTING POINT, OXIDES, SOLID SOLUTIONS, CARBIDES, WEAR RESISTANCE, HARDNESS, HIGH STRENGTH

Subject Categories : Electrical and Electronic Equipment
      Metallurgy and Metallography
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE