| Title |
Preparation of Ultra Fine BaTiO3 Powders by Hydrothermal systhesis |
| Authors |
이종현(Jong Hyeon Lee); 성학경(Hak Kyeong Sung); 원창환(Chang Whan Won); 김한식(Han Sik Kim) |
| Abstract |
Ultrafine BaTiO₃ powder was prepared by hydrothermal synthesis with the treatment of Ba and Ti hydroxide at temperatures ranged from 120℃ to 180℃ The effects of synthesizing conditions on the properties and the crystal structure of powder were investigated using x-ray, SEM, TEM and chemical analysis. BaTiO₃ powder obtained from the optimum condition exhibited spherical shape, high purity, submicron size with a narrow size distribution but some agglomeration. The rate of BaTiO₃ formation was very fast and about 99% yield of BaTiO₃ was obtained at 120℃ |