Sintered electrical contact materials
AssigneeTeledyne Scientific & Imaging, LLC
InventorsRahul Ganguli, Payam Minoofar, Michael Calabrese
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Abstract
The sintered electrical contact material described in this specification includes at least one salt dispersed within a silver matrix, and no more than 100 ppm of cadmium and cadmium compounds. The sintered electrical contact material exhibit contact resistances much lower than than commercially available silver composites. The salts dispersed within the silver matrix represent a new class of additives for silver composites for high and low current applications.
Claims15
A sintered electrical contact material comprising:
- a silver matrix;
- up to 15% (wt/wt) of at least one salt dispersed within the silver matrix, wherein the at least one salt has a melting temperature below 960° C.;
- and
- no more than 100 ppm (wt/wt) of cadmium and cadmium compounds.
A method of producing a sintered electrical contact material, the method comprising:
- homogenizing a mixture comprising a silver powder and up to 15% (wt/wt) of particles of at least one salt, wherein the at least one salt has a melting temperature below 960° C.;
- compacting at least a portion of the homogenized mixture to provide a compact;
- and
- sintering the compact.
Dependencies are inferred from the claim text.