Preparation and characterizations of nanometer BaTi_2O_5 powders

BaTi_2O_5 nano-powders were prepared susuessfully by Sol-Gel technique using ethylene glycol monomethyl ether as solvert barium acetate and titanium tetrabutocxide as precursor.The nano-powders with different diameters were obtained after the gel was sintered for 2h with different temperatures from 600℃ to 1200℃.The synthesis was investigated by DTA-TG,the nanocrystallline structure was characterized by XRD,the size and morphology were tested by TEM,the diameter distributions were determined by laser particle analyzer,and the result were compared with TEM. The sintering and dielectric properties were also studied.