Abstract
The present work was undertaken as part of a study to clarify the relationship between the electrical properties and the microstructure of the SnO2-glass composite. The glass composites with different particle dispersions of SnO2 were prepared under various mixing conditions of the starting powder. The densification behaviour and the electrical properties of the glass composites were discussed from quantitative analysis of the dispersion of SnO2 particles in glass matrices. As a result, the glass composite having homogeneous particle dispersion densified and showed an abrupt increase in conductivity (κ) and the temperature coefficient of resistance (TCR) at a low firing temperature. But after the completion of densification, the glass composite with the inhomogeneous dispersion of SnO2 particles showed a high κ and a TCR close to zero because the highly aggregated SnO2 particles connect with each other to form highly electrically conductive networks.
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