نبذة مختصرة : The effects of high-energy ball milling and subsequent calcination on the formation of barium aluminate cementing phases using mixtures of Al2O3 and BaCO3 were investigated. Silica fume was further added in the raw mixtures to observe its role on the cementing phase formation. Results indicated that the decomposition temperature of BaCO3 lowered remarkably with the increase in milling time. Barium aluminate cements with grain size in nanometer range were obtained from high-energy ball-milled raw mixtures. X-ray diffraction (XRD) results confirmed several crystalline barium-silicate and barium aluminate
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