The Electrical Conductivity of Solid/Liquid Coexisting Systems Aqueous Solution System

The electrical conductivity and its temperature dependence were investigated for α-Al 2 O 3 powder/CaCl 2 aqueous solution coexisting system by ac impedance method. The electrical conductivity of the paste unusually decreased with an increase of the volume fraction of the solid phase. The temperature dependence of the electrical conductivity of log a s. 1/T showed a good linear relationship for the system containing the dilute solution as a liquid phase. The activation energy for the electrical conductivity, ΔE a , was determined from the temperature dependence