Effect of Radiation Damage on Mullite Formation in Kaolinite

C. M. Head, W. E. Moody, Lane Mitchell and R. A. Young
School of Ceramic Engineering, Georgia Institute of Technology, Atlanta, Georgia

Abstract: Kaolin was irradiated with 0.67 meV gamma-rays from a Cs137 source. Irradiation dosages of more than 1019 eV/g retarded mullite formation whereas smaller dosages appeared to have enhanced mullite formation slightly. It appears that preferentially oriented mullite formation from kaolinite is energetically favored and is adversely affected by radiation-produced nb/3 shifting of the Al ions. A possible mechanism for the effects of the radiation on mullite formation is suggested.

Clays and Clay Minerals; 1961 v. 10; no. 1; p. 356-364; DOI: 10.1346/CCMN.1961.0100131
© 1961, The Clay Minerals Society
Clay Minerals Society (www.clays.org)