ABSTRACT
In the present work, the effects of milling and calcination temperature on the compressibility and sinterability of a nanocrystalline Al2O3–Y3Al5O12 composite powder prepared by an aqueous sol–gel method were investigated. The results showed that calcination temperature has a strong influence on the sinterability and final microstructure of amorphous powders. The lower calcination temperatures below 800°C resulted in the reduction of density and formation of a vermicular microstructure after sintering.