Li_2O-SiO_2及びK_2O-SiO_2系溶融ガラスの導電率測定

概要

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Electrical conductivities of molten Li_2O- SiO_2 and K_2O-SiO_2 glasses was measured by the four-electrode method and bridge method with alternating current. For the four-electrode method, the resistances measured at the frequencies in the range of 1 to 5 kHZ were a constant value, but those at frequencies higher than 7 kHZ increased with increasing frequency. On the other hand, the resistances measured by the bridge method decreased with increasing frequency. The electrical conductivities calculated from the resistances below 5 kHZ for the four-electrode method agreed with those calculated from the resistance obtained by extrapolating to the infinitely high frequency for the bridge method. The four-electrode method was considered to be better than the bridge method for measuring the electrical conductivity of molten glasses with high specific conductivities.
社団法人日本セラミックス協会の論文
1989-04-01