ALUMINUM MEMBER AND METHOD FOR PRODUCING SAME
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United States of America Patent
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Issued Date -
Feb 1, 2024
app pub date -
Oct 14, 2021
filing date -
Oct 23, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is an aluminum member including: a substrate formed of aluminum or an aluminum alloy. The aluminum member includes an anodic oxide coating that includes a barrier layer in contact with a surface of the substrate, a first porous layer in contact with a surface of the barrier layer on an opposite side to the substrate, and a second porous layer in contact with a surface of the first porous layer on an opposite side to the barrier layer and including multiple pores aligned and linearly extending from a surface in contact with the first porous layer toward an exposed surface. The first porous layer includes at least one of: multiple branching pores; or multiple pores having an average pore diameter larger than that of the second porous layer.
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