Electrical Resistance Measurements of Kaolinite and Serpentine Powders During Dehydroxylation*

M. Nakahira
Pennsylvania State University, University Park, Pa., U.S.A.
* Contribution No. 63-57, College of Mineral Industries, The Pennsylvania State University, University Park, Pa.

Abstract: Direct current resistance measurements were made of kaolinite and serpentine powders to follow the changes in resistances during their dehydroxylation processes in air. The resistance of kaolinite remained almost constant during the dehydroxylation, whereas that of serpentine showed a rapid decrease. The formation of distorted lattice sites where the charge carriers are scattered under an electric field was assumed in the former case. On the other hand, the result in the latter case was interpreted in terms of an increasing cation mobility.

Clays and Clay Minerals; 1963 v. 12; no. 1; p. 29-33; DOI: 10.1346/CCMN.1963.0120106
© 1963, The Clay Minerals Society
Clay Minerals Society (www.clays.org)