| 학회 |
한국재료학회 |
| 학술대회 |
2010년 봄 (05/13 ~ 05/14, 삼척 팰리스 호텔) |
| 권호 |
16권 1호 |
| 발표분야 |
C. Energy and the Environment(에너지 및 환경재료) |
| 제목 |
Structural and PTCR Characteristics of (1-x)BaTiO3-x(Bi0.5Na0.5)TiO3 PTCR Ceramics Synthesized with Muffled Sintering |
| 초록 |
(1-x)BaTiO3-x(Bi0.5Na0.5)TiO3 (BaBiNT-x) ceramics with 0＜x＜10 were synthesized by a modified annealing process. The BaBiNT-x ceramics showed better positive temperature coefficient of resistivity (PTCR) characteristics compared with those synthesized by a conventional annealing process. Since (Bi0.5Na0.5)TiO3 has a relatively high Curie temperature (Tc) of 420oC, their Tc was gradually increased with increasing x. However, a volatile element of Bi or Na during sintering at high temperature (1300oC) leaded them to PTCR ceramics with a relatively low Tc less than 170oC. Therefore, the BaBiNT-x ceramics was sintered by a muffling condition. The effect of Bi and/or Na muffling effect on the PTCR characteristics of BaBiNT-x ceramics will be presented in this presentation. |
| 저자 |
김경범1, 차유정1, 정영훈1, 이영진1, 백종후1, 이우영2, 김대준2
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| 소속 |
1한국세라믹기술원, 2하이엘 |
| 키워드 |
PTCR; BaTiO3-(Bi0.5Na0.5)TiO3; Muffled Sintering
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| E-Mail |
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