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摘要

压电陶瓷能够通过正/逆压电效应实现电能与机械能之间的相互转化, 在电子信息、通信、传感等领域中具有广阔的应用前景. 压电陶瓷的压电性能对晶粒尺寸极为敏感, 其晶粒尺寸效应的研究受到了广泛关注. 本文对目前应用较多的几类钙钛矿型压电陶瓷, 包括钛酸钡、锆钛酸铅、铌酸钾钠、钛酸铋钠陶瓷的压电性能晶粒尺寸效应的研究与进展进行了综述; 总结了这些体系中晶粒尺寸的调控方法, 晶粒尺寸效应的表现规律, 同时回顾了相关物理模型与理论机制. 本文为系统理解压电性能的晶粒尺寸效应提供了指导, 并对压电陶瓷晶粒尺寸效应的未来研究方向做出了展望.

关键词:

Abstract

Piezoelectric ceramics is a versatile functional material that can realize interconversion between electrical energy and mechanical energy. As the electrical properties of piezoelectric ceramics are extremely sensitive to the grain size variation, the investigation of grain size effect has attracted much attention. In this paper, the recent research progress of the grain size effect on perovskite piezoelectric ceramics, including barium titanate (BT), lead zirconate titanate (PZT), potassium sodium niobate (KNN), and sodium bismuth titanate (BNT), is comprehensively reviewed. We especially focus on topics including feasible ways of fabricating piezoelectric ceramics with the desired grain sizes, the influence of the grain size effect on piezoelectric properties, and the corresponding physical mechanisms. This review would be beneficial to understanding the influence of the grain size effect on piezoelectric properties. The review concludes with the prediction of the further investigation on the grain size effect.

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作者及机构信息

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通信作者:龚文,gongwen@tsinghua-zj.edu.cn; 王轲,wang-ke@tsinghua.edu.cn

基金项目:国家自然科学基金优秀青年科学基金(批准号: 51822206)、国家自然科学基金(批准号: 51972005)和科学挑战专题(批准号: TZ2018003)资助的课题

Authors and contacts

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Corresponding author:Gong Wen,gongwen@tsinghua-zj.edu.cn; Wang Ke,wang-ke@tsinghua.edu.cn

Funds:Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 51822206), the National Natural Science Foundation of China (Grant No. 51972005), and the Science Challenge Project, China (Grant No. TZ2018003)

文章全文: translate this paragraph

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施引文献

下载: 全尺寸图片幻灯片

分类	制备方法	最细粉体粒径/nm	文献
气相法	气相合成法	～100	[34]
固相法	固相反应合成法	100	[35]
	研磨-离心法	300	[36]
	高能球磨法	16	[37]
液相法	溶胶-凝胶法	38	[38]
	水热法	< 100	[39,40]
	微波水热法	30	[41]
	溶剂热合成法	20	[42]
	醇盐法	5	[43]
	水解法	100	[44]
	微乳液法	< 10	[45,46]
	低温直接合成法	< 10	[47,48]
其他方法	生物法	4	[49]
其他方法	微模板法	6	[50]

下载: 导出CSV

烧结方法	晶粒尺寸/μm
烧结方法	BT	PZT	KNN
普通烧结	0.5—100^[51,52]	1—10^[25]	0.5—4^[53]
两步法烧结	0.005—8.6^[27,54]	1.6—6.4^[55]	1.6—3.8^[56,57]
热压烧结	0.3—1.2^[23]	2—5^[58]	~0.31^[57]
热等静压烧结	0.32—47.3^[59,60]	2—4^[61]	~0.34^[62]
微波烧结	~3.4^[63]	~2^[64]	< 1^[65]
等离子放电烧结	0.02—1.2^[52,66,67]	0.3—0.5^[68]	0.2—1^[69-71]
闪速烧结	0.3—0.4^[72]	^#0.168—1.4 (AC)^[73] 0.269—4 (DC)^[74]	^*< 0.5&4^[75]
注:^#AC指在交流电场下的闪速烧结, DC指在直流电场下的闪速烧结; ^*晶粒尺寸呈现双峰分布.

下载: 导出CSV

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