Patent · US Expired

Powder-metallurgically produced composite material and method for its production

US6312495A · kind A · utility

6Cited by

7References

22Claims

0Family size

Assignee

Louis Renner GmbH · DE

Inventors

Gerd-Friedrich Renner · Lingen (Ems), DE
Udo Siefken · Hersbruck, DE

Key dates

Filing date	Apr 7, 2000
Grant date	Nov 6, 2001
Priority date	—
Expiry date	Apr 7, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2998/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to a powder-metallurgically produced composite material comprising a matrix and a granular additive comprising at least one fine-grained refractory metal with an average grain size of at most 2 .mu.m uniformly distributed in the matrix, so that the composite exhibits a residual porosity of <0.5%. Furthermore, the invention relates to a method for the production of the composite and its use as an electrical contact material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.