High-performance potassium-sodium niobate lead-free piezoelectric ceramics based on polymorphic phase boundary and crystallographic texture

doi:10.1016/j.actamat.2018.12.024

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	High-performance potassium-sodium niobate lead-free piezoelectric ceramics based on polymorphic phase boundary and crystallographic texture
	Li, P ; Huan, Y ; Yang, WW ; Zhu, FY ; Li, XL ; Zhang, XM ; Shen, B ; Zhai, JW
刊名	ACTA MATERIALIA
	2019
卷号	165 期号:-页码:486—495
关键词	CRYSTAL ORIENTATION DEPENDENCE FREE PIEZOCERAMICS TEMPERATURE STABILITY DIELECTRIC-PROPERTIES VOLTAGE COEFFICIENT ZIRCONATE-TITANATE THERMAL-STABILITY SINGLE-CRYSTALS STRAIN HYSTERESIS
ISSN号	1359-6454
DOI	10.1016/j.actamat.2018.12.024
文献子类	期刊论文
英文摘要	Lead-free piezoelectric ceramics are urgently needed in the field of electromechanical conversion devices due to the restriction on the use of lead-based ceramics. In this study, the polymorphic phase boundary (PPB) were tuned by incorporating different concentration of (Bi0.5K0.5)HfO3 into the matrix (K0.5Na0.5)(Nb0.965Sb0.035)O-3-CaZrO3, and the < 00l >(c) crystallographic texture was realized by templated grain growth method. The maximal d(33) (similar to 550 pC/N) and k(p) (similar to 72%) were achieved in the < 00l >(c) textured ceramics with composition around rhombohedral-orthorhombic-tetragonal (R-O-T) phase boundary. It is proposed that the enhanced piezoelectricity should be ascribed to several combined effects, which primarily contain the R-O-T phase boundary facilitating polarization rotation, the crystallographic orientation induced intrinsic piezoelectric anisotropy, electric-field-induced lattice distortion and phase transitions, and NaNbO3 seed-crystal-driven nanodomain structures. This work provides an effective solution to enhance piezoelectric properties by simultaneous tailoring polymorphic phase boundary and using crystallographic texture in potassium-sodium niobate based piezoelectric ceramics. We believe that the simple solution and design principle can also be applied to other piezoelectric ceramic systems, no matter lead-based or lead-free. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31658]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Tongji Univ, Sch Mat Sci & Engn, Key Lab Adv Civil Engn Mat, Minist Educ, Shanghai 201804, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 3.Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China;
推荐引用方式 GB/T 7714	Li, P,Huan, Y,Yang, WW,et al. High-performance potassium-sodium niobate lead-free piezoelectric ceramics based on polymorphic phase boundary and crystallographic texture[J]. ACTA MATERIALIA,2019,165(-):486—495.
APA	Li, P.,Huan, Y.,Yang, WW.,Zhu, FY.,Li, XL.,...&Zhai, JW.(2019).High-performance potassium-sodium niobate lead-free piezoelectric ceramics based on polymorphic phase boundary and crystallographic texture.ACTA MATERIALIA,165(-),486—495.
MLA	Li, P,et al."High-performance potassium-sodium niobate lead-free piezoelectric ceramics based on polymorphic phase boundary and crystallographic texture".ACTA MATERIALIA 165.-(2019):486—495.