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J. Korean Ceram. Soc. > Volume 42(1); 2005 > Article
Journal of the Korean Ceramic Society 2005;42(1): 33.
doi: https://doi.org/10.4191/kcers.2005.42.1.033
저온 소결용 PMN-PT-BT 세라믹스의 물성에 미치는 승온 속도의 영향
임경란, 김창삼
한국과학기술연구원 재료연구부
Influence of Heating Rate on the Properties of Low-Temperature-Sinterable PMN-PT-BT Ceramics
Kyoung-Ran Han, Chang-Sam Kim
Division of Materials Science and Technology, Korea Institute of Science and Technology
Effect of heating rate was studied on consolidation of the low-temperature-sinterable PMN-PT-BT powder by varying the heating rate from 5, 10, to $20^{circ}C/min$. Slow rate of $5^{circ}C/min$ showed more homogeneous microstructure than high rate of 10 or $20^{circ}C/min$ due to low PbO (m.p. $886^{circ}C$) evaporation at 850^{circ}C$. It showed sintered density of $7.93 g/cm^{3}$, room temperature dielectric constant of 15300, and dissipation factor of $0.92%$.
Key words: PMN-PT-BT, Low-temperature sintering rate, Microstructure, Dielectric constant
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