KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| Lead-reduced Bi(Ni2/3Ta1/3)O-3-PbTiO3 perovskite ceramics with high Curie temperature and performance | |
| Pang, Dongfang; Liu, Xitao; Zheng, Jing; Long, Peiqing; Lin, He; Yi, Zhiguo | |
| 2019-03-01 | |
| Source Publication | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
 |
| ISSN | 0002-7820 |
| Volume | 102Issue:3Pages:1227 |
| Subtype | Article |
| Abstract | With increasing demand of high-temperature piezoelectric devices and growing concern over environment protection, a feasible reduction in lead from lead-based high Curie temperature piezoelectric materials are desperately needed. Herein, a new system of lead-reduced Bi(Ni2/3Ta1/3)O-3-PbTiO3 (BNT-PT) ferroelectric ceramics is fabricated by a conventional solid-state sintering process. The phase transition behaviors as a function of composition and temperature, electrical properties, as well as the domain configurations from a microscopic level have been investigated in detail. The results indicate that crystal structures, phase transition behaviors, and electric properties of BNT-PT ceramics can be affected significantly by the content of BNT counterpart. Dielectric measurements show that xBNT-(1-x)PT ceramics transfer from the normal ferroelectrics to the relaxor ferroelectrics at compositions of x=0.3-0.35. The BNT-PT ceramics exhibit high Curie temperature T-C ranging from 474 to 185 degrees C with the variation in BNT content. The relative dielectric tunability n(r) also rises from only 0.65% for 0.10BNT-0.90PT to 50.23% for 0.40BNT-0.60PT with increasing BNT content. The tetragonal-rich composition 0.30BNT-0.70PT ceramic possesses the maximum remnant polarization of P(r)34.9C/cm(2). Meanwhile, a highest piezoelectric coefficient of d(33)271pC/N and a high field piezoelectric strain coefficient of d33560pm/V are achieved at morphotropic phase boundary (MPB) composition of 0.38BNT-0.62PT. The maximum value of strain 0.31% is obtained in the 0.36BNT-0.64PT ceramic. The largest electromechanical coupling coefficient k(p) is 44.5% for 0.37BNT-0.63PT ceramic. These findings demonstrate that BNT-PT ceramics are a system of high-performance Pb-reduced ferro/piezoelectrics, which will be very promising materials for piezoelectric devices. This study offers an approach to developing and exploring new lead-reduced ferroelectric ceramics with high performances. |
| Keyword | ferroelectricity ferroelectric materials perovskites phase transition |
| DOI | 10.1111/jace.15962 |
| Language | 英语 |
| WOS Research Area | Materials Science |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sic.ac.cn/handle/331005/27310 |
| Collection | 中国科学院上海硅酸盐研究所 |
| Recommended Citation GB/T 7714 | Pang, Dongfang,Liu, Xitao,Zheng, Jing,et al. Lead-reduced Bi(Ni2/3Ta1/3)O-3-PbTiO3 perovskite ceramics with high Curie temperature and performance[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2019,102(3):1227. |
| APA | Pang, Dongfang,Liu, Xitao,Zheng, Jing,Long, Peiqing,Lin, He,&Yi, Zhiguo.(2019).Lead-reduced Bi(Ni2/3Ta1/3)O-3-PbTiO3 perovskite ceramics with high Curie temperature and performance.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,102(3),1227. |
| MLA | Pang, Dongfang,et al."Lead-reduced Bi(Ni2/3Ta1/3)O-3-PbTiO3 perovskite ceramics with high Curie temperature and performance".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 102.3(2019):1227. |
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