| 학회 | 한국재료학회 |
| 학술대회 | 2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 | 27권 2호 |
| 발표분야 | A. 전자/반도체 재료 분과 |
| 제목 | Low energy consumption processing of BaTiO3-(Bi,Na)TiO3 dielectric ceramics |
| 초록 | The BaTiO3-(Bi,Na)TiO3 (BT-BNT) with a BT-rich composition is well known as a ceramic with stable high-temperature dielectric properties because it has a much higher ferroelectric-paraelectric transition temperature than pure BT. But conventional BT-BNT solid-state synthesis method has a high synthesis temperature and high sintering temperature. The high process temperature has a limit to its application in the industry, so the BT-BNT ceramic process temperature should be reduced. In this study, reduce the process temperature of BT-BNT ceramics for industrial applications was studied. BT and BNT were synthesized through hydrothermal synthesis, and as a result, the nano-sized particles and the synthesis temperature decreased from 1000°C to 200°C. The sintering temperature decreased by 10%, and nano-sized grains were formed due to the 2-D nanosheet BNT wrapping on the BT surface. By adding sintering additives such as CuO and ZnO into the wrapped BT-BNT, the sintering temperature was lowered to 900°C. |
| 저자 | 송태영1, 김한울2, 김백천1, 성우준2, 권도균1 |
| 소속 | 1한국항공대, 2신소재공학과 |
| 키워드 | BT-BNT; Low-energy consumption; Hydrothermal; Sintering additives |
