表面技術
Online ISSN : 1884-3409
Print ISSN : 0915-1869
ISSN-L : 0915-1869
非晶質薄帯上への無電解Co-Fe合金析出の電気化学的特性
丸山 耕一増田 美枝子沼田 博雄佐藤 駿大野 湶
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1998 年 49 巻 6 号 p. 618-624

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Electroless Co-Fe alloy deposition on the substrate of amorphous ribbon in a bath containing DMAB as a reducing agent was studied using an electrochemical polarization curve. The deposition rate was predicted by anodic and cathodic polarization curves for electrolessly-deposited Co-Fe alloy electrodes in the plating bath. The catalytic activity sequence of Co-Fe alloy electrode for anodic oxidation of DMAB was estimated from the current density-potential curve in an anodic partial bath not containing metal ions, and led to clarification of the relationship between the deposition rate of Co-Fe and the alloy composition of the deposit. The catalytic activity sequence of amorphous ribbon electrode depending on its alloy composition for anodic oxidation of DMAB was itself found to significantly affect the deposition rate in the initial stage.

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