Composite layer and method of forming same
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United States of America Patent
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Issued Date -
Oct 30, 2008
app pub date -
Apr 24, 2007
filing date -
Apr 24, 2007
priority date (Note) -
Abandoned
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Abstract
A layer (20) on a composite (22) of aluminum (26) and a non-conductive material (24) and a method of forming the layer (20) are described. A first embodiment comprises a method of forming a composite layer (101) comprising combining a non-conductive material (24) and aluminum (26) to form a composite (22), and electrochemically oxidizing (103) the aluminum (26) on a surface of the composite (22) to form aluminum oxide (28). In a particular embodiment, the non-conductive material (24) is diamond. In other particular embodiments, the step of combining (101) the non-conductive material (24) and aluminum (26) comprises at least one of cold spraying and electrolytic codeposition. In another particular embodiment, the oxidizing step (103) comprises anodizing. In yet another particular embodiment, the oxidizing step (103) comprises hard anodizing. In yet another embodiment, the invention comprises a composite (22) of a non-conductive material (24) and aluminum (26), the composite (22) having a layer (20) of the non-conductive material (24) and aluminum oxide (28), the layer (20) being formed by the method of the first embodiment. In yet another embodiment, the composite (22) is attached to a lapping plate (30).
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