Pulse Reverse Current Electrodeposition of Composite Coatings

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The goal of this research is to develop a method for producing composite coatings with strong compositional gradients. Such coatings have proven extremely useful because their physical properties change continuously with depth. Composite coatings thus provide a smooth transition between disparate materials such as metal and ceramics. The method to be explored combines electrolytic codeposition with pulse reverse current (PRC) electroplating. By careful control of the waveform, it is proposed to demonstrate that electrolytic PRC codeposition can both enhance and depress the ratio of particle to metal deposited over that found from codeposition by means of direct current plating. This innovation has the potential to produce novel and improved coatings in the electroplating industry.