发明名称 |
Alumina protective coating film and method for formation thereof |
摘要 |
Provided is a protective alumina film mainly containing alumina in the alpha-crystal structure and fine crystal grains in which one or more regions containing additionally an element other than aluminum formed along the planes in the direction almost perpendicular to the thickness direction of the protective film are present intermittently in the thickness direction inside the protective film.
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申请公布号 |
US2006263640(A1) |
申请公布日期 |
2006.11.23 |
申请号 |
US20050554601 |
申请日期 |
2005.10.27 |
申请人 |
KABUSHIKI KAISHA KROBE SEIKO SHO(KOBE STEEL LTD) |
发明人 |
TAMAGAKI HIROSHI;KOHARA TOSHIMITSU |
分类号 |
B23B27/14;B32B19/00;B32B9/00;C23C14/08;C23C16/00 |
主分类号 |
B23B27/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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