| 학회 |
한국재료학회 |
| 학술대회 |
2004년 봄 (05/14 ~ 05/14, 강릉대학교) |
| 권호 |
10권 1호 |
| 발표분야 |
세라믹스 |
| 제목 |
Glycothermal 법에 의한 단분산 나노 BaTiO3 분말 합성 |
| 초록 |
Mono-dispersed and nano-sized BaTiO3 particles have been prepared from coprecipitate precursors by the glycothermal process. The influences of concentration of metal nitrates in the solution and drying condition on primary and secondary particle size, and morphology were investigated. The characteristics of obtained powders were examined by means of differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmmision electron microscopy (TEM). In addition, the porosimeter and BET analyses were carried out. As increasing the concentration of metal nitrates increased the primary and secondary particle size and BET surface area. To investigate the effect of drying method, glycol was removed from the autoclave at reaction temperature instead of by the conventional process in which the product is washed in methanol and air-dried. This change improved the pore system of powders, probably through the reduction of coagulation among the ultrafine particles during the drying process. |
| 저자 |
진형호, 김동현, 박영민, 장주민, 박홍채, 윤석영
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| 소속 |
부산대 |
| 키워드 |
Glycothermal method; BaTiO3; nano-sized
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| E-Mail |
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