Three different kinds of corundum aggregates-tabular sintered alumina, dense sintered alumina, and fused dense corundum-were introduced into the silica fume .free or silica fume containing Al2O3 -SiC - C iron runner c...
The grain-growth behavior of Al2O3 powder compacts with small contents(<5wt%) of various dopants was studied .The existence of tabular sub-grains were observed with all the following dopants: V2O5,MgO+Y2O3 and Na2B4O7...