Liquid metal electrical contact compositions
AssigneeFinch Limited
InventorsD. Robert Stirling, J. Liam McNeil
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Abstract
Liquid metal electrical contact compositions are disclosed. Compositions of this invention consist of a metal mixture of first and second Periodic Table Group III metals and a lubricant. A gallium/indium metal mixture is preferred. Preferred lubricants are metal-based, most preferably molybdenum-based. The liquid metal electrical contact compositions are particularly useful for high current density applications.
Claims12
A liquid metal electrical contact composition for use in high-current-density electrical systems comprising:
- a) a metal mixture consisting of:
- about 5 weight percent to about 95 weight percent of the composition of a first Group III metal selected from the group consisting of aluminum, gallium, indium, thallium, and mixture or alloys thereof, and correspondingly the rest of the metal mixture comprising reciprocally from about 95 to about 5 weight percent of a second Group III metal also selected from the group consisting of aluminum, gallium, indium, thallium, and mixtures or alloys thereof, wherein said second Group III metal contains at least one metal not present in said first Group III metal;
- and
- b) a lubricant.
A liquid metal electrical contact composition for use in high-current-density electrical systems comprising:
- a) about 20% to about 80% by volume of a metal mixture consisting of:
- about 5 weight percent to about 95 weight percent of the composition of a first Group III metal selected from the group consisting of aluminum, gallium, indium, thallium, and mixture or alloys thereof, and correspondingly the rest of the metal mixture comprising reciprocally from about 95 to about 5 weight percent of a second Group III metal also selected from the group consisting of aluminum, gallium, indium, thallium, and mixtures or alloys thereof, wherein said second Group III metal contains at least one metal not present in said first Group III metal;
- and, conversely,
- b) about 80% to about 20% by volume of a metal-based lubricant.
Dependencies are inferred from the claim text.