Electrochemical separation of phases in a copper alloy containing beryllium, nickel and zirconium
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To determine the chemical composition of phases in a heterogeneous Cu-Be-Ni-Zr alloy, a 50% citric acid solution was used to permit selective electrochemical dissolution of the copper matrix from the second phase. Using the potentiostatic method it was found that quantitative dissolution of the copper matrix could be achieved at —250 mV (versus SSE). The method described for the separation of the copper matrix from the second phase could also be successfully applied to other heterogeneous copper alloys.
KeywordsCopper Physical Chemistry Nickel Zirconium Citric Acid
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