Abstract
In order to reveal the interface reaction mechanism between platinum and 50PbO⋅50SiO2 glass melts, the redox reaction of platinum was studied electrochemically by cyclic voltammetry with platinum electrodes between 800°C and 1000°C. On cyclic voltammogram, two anodic peaks and one cathodic peak were observed. These peaks were due to redox of platinum in the glass melt. On the electrodes, it was observed that the interface between platinum and glass was uniform after platinum was oxidized by electrolysis. On the other hand, many pores were found near the electrode surface after platinum was reduced, These pores were found to be filled with melt. The mechanisms of redox reaction on the electrode were analyzed.
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