| 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 |
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| ABSTRACT |
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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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