Abstract
Various lime bonds have different effects on the densification of aluminous bodies during drying and firing. Of the bonds investigated the greatest action on the sintering of the alumina is exerted by gypsum. The reduced density of the fired alumina bodies containing an addition of gypsum is due to the lower thermal shrinkage, connected with the higher temperature of decomposition for the gypsum, and the increase in the weight losses during calcination.
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