Effects of milling condition on the formation of core–shell structure in BaTiO3 grains

摘要: The effects of ball-milling condition on the formation of core–shell structure in BaTiO3 grains were studied. As the ball-milling time increased from 12h to 48h, the stress given by the milling process was accumulated in the powders while the primary powder size was reduced at 24h milling and additional comminution of powders occurred at 48h milling. The change of powder characteristics did not induce any difference in the sinterability but influenced on the formation of core–shell structure. The increase in milling time facilitated …