发明名称 |
Electrochemical method for forming an inorganic covering layer on a surface of a copper material |
摘要 |
A method is provided for forming an inorganic layer on a surface of a copper material, made of copper or of a copper-based alloy: a browning anodic oxidation process is performed on the copper material in an electrolytic bath containing only an alkali (for example NaOH) at a specified concentration in aqueous solution, under controlled condition of temperature and anodic current density and for a period of time suitable to form a continuous layer basically formed of copper (I) oxide (Cu2O): layers highly adherent to the copper substrate and having good mechanical behaviour are produced: different colors and optical properties may be obtained by controlling the process conditions so as to influence the crystalline form of the Cu2O layers.
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申请公布号 |
US2003102227(A1) |
申请公布日期 |
2003.06.05 |
申请号 |
US20020107596 |
申请日期 |
2002.03.27 |
申请人 |
EUROPA METALLI S.P.A. |
发明人 |
BILLI ALBERTO;HOVELING STEPHAN;PRIGGEMEYER STEFAN |
分类号 |
C25D11/34;H05K3/38;(IPC1-7):C25D5/34;C25D5/48;C25D9/00;C25D11/00;B32B1/00 |
主分类号 |
C25D11/34 |
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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