Electrical Resistivity Measurement of the Molten Cordierite Glass Using Two-wire method

Authors

1 Material Engineering, Malayer University

2 Ceramic, Materials and Energy Research Center

3 Research Department of Ceramic, Materials and Energy Research Center (MERC)

4 Semiconductors, Materials and Energy Research Center (MERC)

Abstract

Electrical resistivity (ER) is a main parameter in the melting processes of glasses. However, its measurement is difficult at high temperatures. In this study the electrical resistivity of different cordierite glass samples in the molten state was measured in the temperature range of 1100˚C to 1550 ˚C using the two-wire method. It was attempted to decrease the electrical resistivity of the glass by adding Na2O to the base glass. In one sample 0.5% wt Na2O was added and in another 1%. It was observed that the electrical resistivity of the glass decreased as temperature increased. Also, it was found that the electrical resistivity of cordierite glass decreases with the addition of Na2O. This was attributed to the high mobility of Na ions and mixed alkali effect.

Keywords