Multi-coated anodized wire and method of making same
AssigneeFord Global Technologies, LLC
InventorsLarry Dean Elie, Allan Roy Gale, John Matthew Ginder, Clay Wesley Maranville
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Abstract
An insulated electric conductor having a copper core, a layer of aluminum formed on the copper core, and a second layer of aluminum in the form of a high-purity aluminum is disclosed. The copper core may be a solid core or may be formed from a plurality of copper strands. The layer of aluminum formed over the copper core is at least partially anodized to form an aluminum oxide dielectric layer. The layer of high-purity aluminum may be formed by evaporation deposition, sputter deposition, or co-extrusion. Once the layer of high-purity aluminum is formed, it is anodized. More than two layers of aluminum may be formed over the copper core.
Claims20
An insulated electric conductor comprising:
- a copper core;
- a layer of aluminum disposed on said copper core;
- an aluminum oxide dielectric layer formed over said layer of aluminum;
- and
- a layer of anodized high-purity aluminum formed over said aluminum oxide dielectric layer by a process selected from the group consisting of evaporation deposition, sputter deposition, and co-extrusion.
An insulated electric conductor comprising:
- a copper core;
- a layer of aluminum disposed on said copper core;
- an aluminum oxide dielectric layer formed over said layer of aluminum;
- and
- a layer of anodized high-purity aluminum formed over said aluminum oxide dielectric layer.
A method of forming an insulated electric conductor comprising the steps of:
- forming a copper core;
- disposing a layer of aluminum on said copper core;
- oxidizing at least some of said layer of aluminum to form an aluminum oxide dielectric layer;
- and
- forming a layer of high-purity aluminum over said aluminum oxide dielectric layer.
The method of forming an insulated electric conductor according to claim 19 wherein said layer of high-purity aluminum is anodized after formation.
Dependencies are inferred from the claim text.