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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Measurement of Electrical Conductivity of Glass Melter at High Temperature

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2000, v.13 no.6, pp.775-780
Kim, Taesam
Kil, Daesup
Jung, Hunsaeng
Kang, Eunhee
Yoon, Soksung
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Abstract

The electrical conductivity of glass melter at high temperature has been measured. The conductivity is an important physical property for the research and the manufacturing process of glass. Because high temperature is an inconvenient situation to measure the conductivity of glass melter, we have made a platinum crucible and electrode and have measured the conductivity at high temperature. KCl solution, of which concentration is adjusted to the conductivity of glass melter, is used to get parameters of the conductivity cell. A measuring circuit is composed with an AC 1 kHz sine wave generator and an operational amplifier. The cell constants are determined from the measured voltages and the equivalent conductances of KCl solution. Various cells are tested to find a suitable shape for high temperature experiment. The results are compared by cell size, electrode depth, and cell configuration. The conductivity of the borosilicate melter is <TEX>$0.053{\Omega}^{-1}cm^{-1}$</TEX> at <TEX>$1,450^{\circ}C$</TEX>.

keywords
glass, electrical conductivity, conductivity cell, glass melt


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