Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2007.11a
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- Pages.280-280
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- 2007
Microstructure and Piezoelectric Properties in the (Na,K,Li)(Nb,Sb)$O_3$ system
(Na,K,Li)(Nb,Sb)$O_3$ 세라믹스의 압전특성과 미세조직의 변화
- Jeon, So-Hyun (Korea Electrotechnology Research Institute) ;
- Kim, Min-Soo (Korea Electrotechnology Research Institute) ;
- Jeong, Soon-Jong (Korea Electrotechnology Research Institute) ;
- Kim, In-Sung (Korea Electrotechnology Research Institute) ;
- Min, Bok-Ki (Korea Electrotechnology Research Institute) ;
- Song, Jae-Sung (Korea Electrotechnology Research Institute)
- Published : 2007.11.01
Abstract
Lead oxide-based ferroelectrics are the most widely used materials for piezoelectric actuators, sensors and transducers due to their excellent piezoelectric properties. Considering lead toxicity, there is great interest in developing lead-free piezoelectric materials, which are biocompatible and environmentally friendlier. Recently alkali oxide materials, including sodium - potassium niobate (NKN), have been given attention in view of their ultrasonic application and also as promising candidates for piezoelectric lead-free system. However, it is difficult to sinter such NKN-based materials via conventional sintering process. In this reason, many researchers have investigated hot press, hot isostatic press or spark-plasma sintering of NKN-based ceramics. In this study, as candidates for lead-free piezoelectric materials, dense (Na,K,Li)(Nb,Sb)