Effect of heterovalent-ion doping and oxygen-vacancy regulation on piezoelectric properties of KNN based lead-free ceramics

被引:12
作者
Qi, Xiangcheng [1 ,2 ]
Ren, Pengrong [2 ]
Tong, Xiangqian [1 ]
机构
[1] Xian Univ Technol, Sch Elect Engn, Xian 710048, Peoples R China
[2] Xian Univ Technol, Sch Mat Sci & Engn, Shaanxi Prov Key Lab Elect Mat & Infiltrat Technol, Xian 710048, Peoples R China
基金
中国国家自然科学基金;
关键词
KNN; Oxygen vacancy; Defect dipole; Piezoelectricity; Lattice distortion; ENGINEERING STRATEGY; STRAIN; MODULATION; DEPENDENCE; BEHAVIORS; DEFECTS; D(33); MNO;
D O I
10.1016/j.ceramint.2023.08.153
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Next generation advanced piezoelectric transducers significantly rely on lead-free piezoelectric ceramics. Previous investigations have indicated that defect engineering by acceptor doping is a preferable approach to customize piezoelectric materials, but this method leads to a trade-off between d33 and the electromechanical qualities (Qm, kp, etc.), which make the collaborate modulation to be a great challenge. In this work, a novel synergistic modulation combing heterovalention donor doping and oxygen-vacancy regulation is proposed to achieving preferably balanced piezoelectric properties. Herein, (K0.5Na0.5)1-xCaxNbO3 ceramics (abbreviated as 100xKNCN) are prepared based on a solid-state reaction method, and the effects of electromechanical properties of potassium sodium niobate (KNN) ceramics are regulated by defect dipoles and oxygen vacancies. The results elucidate that an appropriate quantity of Ca ion doping could construct a rhombohedral-tetragonal (R-O) phase boundary, which is beneficial to the improvement of d33 and Qm. Furthermore, a preferably balance of electromechanical qualities and piezoelectric coefficient is realized by annealing the sample in N2 atmosphere (2KNCN/N2). Compared with 2KNCN, the d33 and Qm of 2KNCN/N2 increase by approximately 30% and 41%, respectively. This work is expected to provide an effective paradigm to develop defect engineering and make it a promising candidate for industrial piezoelectric application.
引用
收藏
页码:34795 / 34804
页数:10
相关论文
共 43 条
  • [21] Defect-induced transformation between hardening and softening behaviors in CuF2-doped K0.5Na0.5NbO3 piezoceramics
    Liao, You
    Wang, Dongmei
    Wang, Hua
    Wang, Tao
    Wei, Xianhua
    Zheng, Qiaoji
    Jie, Wenjing
    Lin, Dunmin
    [J]. CERAMICS INTERNATIONAL, 2019, 45 (02) : 2644 - 2652
  • [22] Piezoelectric properties and hardening behavior of K5.4Cu1.3Ta10O29-doped K0.5Na0.5NbO3 ceramics
    Lin, Dunmin
    Kwok, K. W.
    Chan, H. L. W.
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 103 (06)
  • [23] Expedient Red Emitting and Transparency Dual Modulation in KNN-Based Transparent Ceramics via Sensitive Photothermochromic Behavior
    Lin, Jinfeng
    Zhai, Jiwei
    Wu, Xiao
    Ye, Huihua
    Wang, Huajing
    [J]. ACS APPLIED ELECTRONIC MATERIALS, 2021, 3 (03) : 1394 - 1402
  • [24] Reversible modulation of photoenergy in Sm-doped (K0.5Na0.5)NbO3 transparent ceramics via photochromic behavior
    Lin, Jinfeng
    Zhou, Yang
    Lu, Qiling
    Wu, Xiao
    Lin, Cong
    Lin, Tengfei
    Xue, Kan-Hao
    Miao, Xiangshui
    Sa, Baisheng
    Sun, Zhimei
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2019, 7 (33) : 19374 - 19384
  • [25] Multiscale simulations of defect dipole-enhanced electromechanical coupling at dilute defect concentrations
    Liu, Shi
    Cohen, R. E.
    [J]. APPLIED PHYSICS LETTERS, 2017, 111 (08)
  • [26] Isolated-Oxygen-Vacancy Hardening in Lead-Free Piezoelectrics
    Liu, Yi-Xuan
    Qu, Wanbo
    Thong, Hao-Cheng
    Zhang, Yang
    Zhang, Yunfan
    Yao, Fang-Zhou
    Nguyen, Trong Nghia
    Li, Jia-Wang
    Zhang, Mao-Hua
    Li, Jing-Feng
    Han, Bing
    Gong, Wen
    Wu, Haijun
    Wu, Chaofeng
    Xu, Ben
    Wang, Ke
    [J]. ADVANCED MATERIALS, 2022, 34 (29)
  • [27] Conduction mechanism of donor and acceptor doped sodium niobate-based ceramics
    Lu, Luting
    Li, Linhao
    Ren, Pengrong
    Che, Xiuzi
    Zhao, Gaoyang
    [J]. CERAMICS INTERNATIONAL, 2022, 48 (21) : 32073 - 32080
  • [28] Crystallographic dependence of internal bias in domain engineered Mn-doped relaxor-PbTiO3 single crystals
    Luo, Nengneng
    Zhang, Shujun
    Li, Qiang
    Yan, Qingfeng
    Zhang, Yiling
    Ansell, Troy
    Luo, Jun
    Shrout, Thomas R.
    [J]. JOURNAL OF MATERIALS CHEMISTRY C, 2016, 4 (20) : 4568 - 4576
  • [29] Effects of a phase engineering strategy on the strain properties in KNN-based ceramics
    Lv, Xiang
    Wu, Jiagang
    [J]. JOURNAL OF MATERIALS CHEMISTRY C, 2019, 7 (07) : 2037 - 2048
  • [30] Tantalum influence on physical properties of (K0.5Na0.5)(Nb1-xTax)O3 ceramics
    Lv, Y. G.
    Wang, C. L.
    Zhang, J. L.
    Wu, L.
    Zhao, M. L.
    Xu, J. P.
    [J]. MATERIALS RESEARCH BULLETIN, 2009, 44 (02) : 284 - 287