Abstract
The effects of prior cold work and solute (or impurity) content on the dissolution rate of Cu in aqueous cupric ammonium carbonate solutions has been studied. Prior cold work increased the dissolution rate, while solute additions of < 0.15 wt pct decreased the rate. Beyond 0.15 wt pct solute the dissolution rate increased with Ag additions, but it decreased further for an alloy of Cu-Cr-Zr. Observations with scanning electron microscopy and X-ray diffraction indicated that a solute build-up that occurs at the surface during dissolution is of primary importance in controlling the dissolution rate.
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Formerly Undergraduate Student, Michigan Technological University
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Carlson, J.A., Mikkola, D.E. Effect of cold work and alloying additions on the kinetics of dissolution of copper in aqueous cupric ammonium carbonate solutions. Metall Trans 5, 915–919 (1974). https://doi.org/10.1007/BF02643148
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DOI: https://doi.org/10.1007/BF02643148