Abstract
Recent investigations on nanostructured metal multilayers have shown that interfaces between each bi-layer can affect the properties of a multilayer. Transient current and potential data after the application of a potential step or a current step, respectively, during the codeposition of copper and nickel from a citrate electrolyte have been investigated. It has been found that on the application of a current step only copper is reduced at first, followed by the deposition of a copper-nickel alloy. Once the current is switched off, nickel (or a nickel-rich) alloy is dissolved from the deposit due to displacement by copper. Transient potentials and steady-state polarisation data can be used to determine the amount of nickel dissolved from a deposit.
Original language | English |
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Pages (from-to) | 55-58 |
Number of pages | 4 |
Journal | Transactions of the Institute of Metal Finishing |
Volume | 81 |
Issue number | 2 |
DOIs | |
Publication status | Published - Mar 2003 |
Keywords
- Copper-nickel alloys
- Current transient
- Displacement reaction
- Electrodeposition
- Potential transient