Abstract: The present invention relates to lubricant compositions comprising a lubricant base containing alloy particles which comprises a dispersion of very fine lead particles in a copper matrix wherein the particles are substantively uniformly dispersed to provide a very fine microstructure. In general, at least 70% of the lead particles have an average diameter of less than about 100 angstroms with no more than about 30% having an average diameter larger than about 100 angstroms, and the alloy particles have a particle size in the range of from about 3 to about 10 microns.
Type:
Grant
Filed:
February 14, 1992
Date of Patent:
March 14, 1995
Assignee:
Applied Metals Technology, Inc.
Inventors:
Richard H. Weichsel, Tirumalai S. Sudarshan, Thomas D. Nielsen