DETERMINATION OF PARTICLE SHAPE FROM ELECTRICAL CONDUCTIVITY OF SUSPENSIONS

Abstract

Experimental investigations are made into the electrical conductivity of suspensions of non-conducting particles of various shapes. Theoretical relations so far available for spheroidal particle systems are tested and the Fricke equation is used for determining particle shape as the aspect ratio of an equivalent spheroid. The electrical conductivities of suspensions of disks and cylindrical particles are obtained experimentally. The effect of the shape distribution on the conductivity of suspensions is also discussed.