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Elimination of film defects due to hydrogen evolution during cathodic electrodeposition
Elimination of film defects due to hydrogen evolution during cathodic electrodeposition
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机译:消除了由于在阴极电沉积过程中放出氢气而导致的薄膜缺陷
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摘要
This invention is directed to a method for eliminating or reducing pinhole defects in cataphoretically deposited films without interfering with the electrolysis of water needed for electrodeposition. This method comprises decreasing the evolution of hydrogen gas at the cathode by adding a compound to the emulsion. This compound is reduced by the hydrogen produced at the cathode during the electrodeposition. The hydrogen reacts with the this non-gaseous compound rather than becoming hydrogen gas and forming bubbles which lead to pinhole defects.
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