METHOD FOR FORMING TANTALUM ANODIC OXIDATION COATING USING IONIC LIQUID AQUEOUS SOLUTION

PROBLEM TO BE SOLVED: To provide a method for forming a tantalum oxidation coating by an anodic oxidation, by which a time required for the anodic oxidation is reduced and the anodic oxidation coating is formed efficiently.SOLUTION: In the method for forming a tantalum anodic oxidation coating, a so...

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Bibliographic Details
Main Authors TATEISHI KAZUYUKI, OISHI TAKAHIRO, WAKI SHOKO
Format Patent
LanguageEnglish
Published 04.11.2011
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Summary:PROBLEM TO BE SOLVED: To provide a method for forming a tantalum oxidation coating by an anodic oxidation, by which a time required for the anodic oxidation is reduced and the anodic oxidation coating is formed efficiently.SOLUTION: In the method for forming a tantalum anodic oxidation coating, a solution at least containing an ionic liquid and water is used. An anion component of the ionic liquid is selected from the group consisting of: a carboxylic acid anion such as a formate anion; a sulfonic acid anion; a hydroxy anion; an imide anion; a halogen anion; a boron anion; and a cyano anion. A cation component of the ionic liquid is an ammonium cation or the like. The concentration of the ionic liquid is within the range of 0.001-50 wt.%.
Bibliography:Application Number: JP20100093567