Role of Cu and Y in sintering, phase transition, and electrical properties of BCZT lead-free piezoceramics | |
Wu, Yinghong1,2,3; Ma, Fei1,2,3; Qu, Jingkui1,2; Luo, Yang1,2,3; Song, Jing1,2; Wei, Guangye1,2; Zhang, Yingchun4; Qi, Tao1,2 | |
刊名 | CERAMICS INTERNATIONAL |
2018-09-01 | |
卷号 | 44期号:13页码:15001-15009 |
关键词 | Bczt Lead-free Ceramics Sintering Phase Transition Electrical Properties |
ISSN号 | 0272-8842 |
DOI | 10.1016/j.ceramint.2018.05.129 |
英文摘要 | Lead-free (Ba0.85Ca0.15)(Ti0.9Zr0.1)O-3-xwt%CuOywt%Y2O3 (BCZT-CxYy) ceramics with high piezoelectricity were synthesized by the conventional solid-state reaction method. The role of Cu and Y (Cu/Y) in sintering, phase transition, and electrical properties of such ceramics was systematically studied. The results indicated that the sintering temperatures of BCZT center dot CxYy decreased by at least 100 degrees C due to the low melting point of CuO. The promotion effect of Cu/Y on phase transition lied in the improvement of T-c by 5-15 degrees C and the coexistence of O +T phase near room temperature. The contribution of Cu/Y to electrical properties was mainly ascribed to the grains growth, the formed oxygen vacancies and lattice distortions, and the donor doping effect of Y3+. Adding 0.10 wt% Cu2+ and 0.06 wt% Y3+ into BCZT dramatically improved the electrical properties as following: d 33 = 552 pC/N, epsilon(m) = 10175, epsilon(r) = 4546, tan delta = 0.016, T-c = 100 degrees C, k(p) = 0.475, Q(m) = 157.2, P-r = 10.82 mu C/cm(2) and E-c = 2.33 kV/CM. A plausible mechanism was obtained to explain the reaction process and the favorable performances of BCZT-CuxYy. Co-doping Cu2+ and Y3+ into BCZT could be a promising method to improve and balance the sintering, phase transition, and electrical properties for potential practical applications of lead-free piezoceramics. |
资助项目 | Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; National Natural Science Foundation of China[51704270] ; Key Research Program of Chinese Academy of Sciences[ZDRW-ZS-2018-1] |
WOS关键词 | High Piezoelectric Coefficient ; Free Ceramics ; Low-temperature ; Electromechanical Properties ; Sn ; Stability ; Ca)(Ti ; (Ba |
WOS研究方向 | Materials Science |
语种 | 英语 |
出版者 | ELSEVIER SCI LTD |
WOS记录号 | WOS:000442057800007 |
资助机构 | Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/25926] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Qu, Jingkui |
作者单位 | 1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100190, Peoples R China 4.Beijing Univ Sci & Technol, Sch Mat Sci & Engn, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Yinghong,Ma, Fei,Qu, Jingkui,et al. Role of Cu and Y in sintering, phase transition, and electrical properties of BCZT lead-free piezoceramics[J]. CERAMICS INTERNATIONAL,2018,44(13):15001-15009. |
APA | Wu, Yinghong.,Ma, Fei.,Qu, Jingkui.,Luo, Yang.,Song, Jing.,...&Qi, Tao.(2018).Role of Cu and Y in sintering, phase transition, and electrical properties of BCZT lead-free piezoceramics.CERAMICS INTERNATIONAL,44(13),15001-15009. |
MLA | Wu, Yinghong,et al."Role of Cu and Y in sintering, phase transition, and electrical properties of BCZT lead-free piezoceramics".CERAMICS INTERNATIONAL 44.13(2018):15001-15009. |
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