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REDUCTION OR ELIMINATION OF FLIM DEFECTS DUE TO HYDROGEN EVOLUTION DURING CATHODIC ELECTRODEPOSITION.
REDUCTION OR ELIMINATION OF FLIM DEFECTS DUE TO HYDROGEN EVOLUTION DURING CATHODIC ELECTRODEPOSITION.
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机译:减少或消除阴极电沉积过程中因氢逸出引起的薄膜缺陷。
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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. THE METHOD COMPRISES DECREASING THE EVOLUTION OF HYDROGEN GAS AT THE CATHODE BY ADDING, TO THE ELECTRODEPOSITABLE COMPOSITONS, A COMPOUND WHICH IS REDUCED BY THE HYDROGEN PRODUCED AT THE HYDROGEN PRODUCED AT THE CATHODE DURING THE ELECTRODEPOSITION. THE HYDROGEN REACTS WITH THIS NON-GASEOUS COMPOUND RATHER THAN BECOMING HYDROGEN GAS AND FORMING BUBBLES WHICH LEAD TO PINHOLE DEFECTS.
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