Reaction-sintering behavior of nanocrystalline indium tin oxide with varying SnO2 content and particle size

The effects of SnO2 content and particle size on the reaction-sintering behavior of ITO (indium tin oxide) ceramics were examined. The pure In2O3 specimen showed a single shrinkage curve which starts from 600 °C. The specimens with SnO2, however, showed two separable shrinkage curves; one starts from 600 °C and the other starts at 1000 °C. This densification behavior was explained from the viewpoint of the fraction of the contact point between particles.