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题名:
Low-temperature sintering of (K,Na)NbO3-based lead-free piezoceramics with addition of LiF
作者: Zhou, Jia-Jun1,2; Cheng, Li-Qian1; Wang, Ke1; Zhang, Xiao-Wen1; Li, Jing-Feng1; Liu, Hong2; Fang, Jing-Zhong2
刊名: Journal of the European Ceramic Society
出版日期: 2014
卷号: 34, 期号:5, 页码:1161-1167
学科分类: Actuators - Doping (additives) - Grain boundaries - Niobium oxide - Perovskite - Piezoelectric ceramics - Temperature
DOI: 10.1016/j.jeurceramsoc.2013.11.029
通讯作者: Li, J.-F. (jingfeng@mail.tsinghua.edu.cn)
文章类型: 期刊论文
中文摘要: Dense Li/Ta-codoped KNN-based piezoceramics with d33* up to 375pm/V were successfully fabricated by conventional sintering at a temperature as low as 900°C by using LiF as a sintering additive. The reduction of densification temperature up to 200°C was realized by a transient liquid phase sintering mechanism, consequently no grain boundary phase was observed in the sintered samples. It was found that the addition of LiF could further shift down the tetragonal-orthorhombic transition point (TT-O), indicating that a small amount of Li+ could diffuse into the A-site of KNN matrix. The introduction of LiF enhanced the linearity of strain curves of the ceramics, which is unambiguously in favor for the actuator application. The present work reveals that low-temperature sintered LiF-doped KNN-based piezoceramics demonstrates promising potential in multilayer-structured actuator applications. © 2013 Elsevier Ltd.
英文摘要: Dense Li/Ta-codoped KNN-based piezoceramics with d33* up to 375pm/V were successfully fabricated by conventional sintering at a temperature as low as 900°C by using LiF as a sintering additive. The reduction of densification temperature up to 200°C was realized by a transient liquid phase sintering mechanism, consequently no grain boundary phase was observed in the sintered samples. It was found that the addition of LiF could further shift down the tetragonal-orthorhombic transition point (TT-O), indicating that a small amount of Li+ could diffuse into the A-site of KNN matrix. The introduction of LiF enhanced the linearity of strain curves of the ceramics, which is unambiguously in favor for the actuator application. The present work reveals that low-temperature sintered LiF-doped KNN-based piezoceramics demonstrates promising potential in multilayer-structured actuator applications. © 2013 Elsevier Ltd.
收录类别: SCI ; Ei
项目资助者: National Nature Science Foundation of China [51221291, 51332002, 51211140345] ; Ministry of Science and Technology of China [2009CB623304] ; State Key Laboratory of New Ceramics and Fine Processing Tsinghua University [KF201309]
语种: 英语
WOS记录号: WOS:000331340900015
ISSN号: 09552219
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6938
Appears in Collections:轻量化中心_期刊论文

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作者单位: 1. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
2. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China

Recommended Citation:
Zhou, Jia-Jun,Cheng, Li-Qian,Wang, Ke,et al. Low-temperature sintering of (K,Na)NbO3-based lead-free piezoceramics with addition of LiF[J]. Journal of the European Ceramic Society,2014,34(5):1161-1167.
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