Corrosion-resistant laminate which consists of a metal of a single mass number deposited on a substrate
AssigneeHitachi, Ltd.
InventorsKenya Ohashi, Kiyoshi Miyake, Noriyuki Ohnaka, Moriaki Fuyama
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Abstract
A highly corrosive-resistant metal having a high purity and a specific plane index is manufactured by ion beam deposition (IBD). A thin film having less defects and impurities is obtained. A magnetoresistant effect film for a magnetoresistant effect type magnetic head which is highly corrosion-resistant and exhibits excellent characteristics can be formed. In IBD according to the present invention, metal ions are provided with adjusted ion energy of 10 to 100 eV, and a metal having a particular mass number is selected by a mass separation electromagnet.
Claims6
A member resistant to electrochemical corrosion which comprises a metallic thin film formed on a surface of a substrate, said film consisting essentially of a metal of a single mass number or an alloy of a combination of different metals, each different metal having a single mass number.
A member resistant to electrochemical corrosion which comprises a metallic thin film formed on a surface of a substrate, said thin film being formed by ion beam deposition and having a surface with a close packed crystal structure and having a crystal grain size of not greater than 5 .mu.m, said thin film consisting essentially of a metal of a single mass number or an alloy of a combination of different metals, each different metal having a single mass number.
A thin film of pure iron having resistance to electrochemical corrosion, said thin film being formed on an electroconductive substrate and having a surface crystal structure oriented in the (110) plane, said thin film consisting essentially of a metal of a single mass number or an alloy of a combination of different metals, each different metal having a single mass number.
Dependencies are inferred from the claim text.