Abstract

The electrodeposition of indium-tin alloys was investigated in EMI-BF4-Cl ambient temperature melts with current pulses. The alloy deposits with higher indium by the pulsed method. In the melt containing high concentration of the stannous ion, the indium content decreased with the off-time length. This variation of the indium content with the off-time caused by the exchange reaction between indium metal in deposits and stannous ion in melt during off-time. The electrode potentials at the end of off-time exist in the range where the exchange reaction occurs.

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