Ceramics-Silikáty 46 (4) 148-151 (2002)

THE EFFECT OF SPINEL SLUDGE AGING ON ITS VISCOSITY

M. Míka, M. Liška, P. Hrma

Spinel sludge samples of different age were prepared by allowing spinel to settle in alumina crucibles. During the aging process the concentration of spinel crystals increased, which resulted in higher viscosity of the sludge. To quantify this process, we suggested functions describing dependence of sludge viscosity on spinel concentration, time dependence of spinel concentration in the sludge, and the dependence of sludge viscosity on sludge age.

Keywords: Spinel sludge, High-level waste, Viscosity