Electrical properties during firing of anorthite ceramic prepared from mixtures of illitic clay
(from Northeastern Hungary) and fly ashes (obtained from circulating fluidized bed combustion e IA4 and pulverized firing e ID4) with high content of CaO were investigated.
Mixtures were prepared with 60 wt% of illitic clay and 40 wt% of oil shale ash. The ashes were hydrated prior to mixing, to prevent the reaction of free lime with water during sample preparation.