Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics
文献类型：期刊论文
| 作者 | Chao, WN; Yang, TQ; Li, YX; Liu, ZF |
| 刊名 | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
 |
| 出版日期 | 2020-09-01 |
| ISSN号 | 0002-7820 |
| DOI | 10.1111/jace.17415 |
| 文献子类 | Article; Early Access |
| 英文摘要 | Ca and Ta co-doped AgNbO(3)antiferroelectric lead-free ceramics were fabricated by rolling process technique, and improved energy storage properties were obtained. X-ray diffraction and Raman spectra indicate a single perovskite structure for (Ag1-2xCax)(Nb1-xTax)O(3)ceramics. The dielectric performances were also investigated, showing that increasing the content of Ca and Ta from 0.1 to 5 mol% gradually decreased the temperatures of the phase transition of monoclinic M-1-M(2)and M-2-M-3. This proved the enhanced antiferroelectricity stability associated with the enlarged low temperature phase transition region. The obtained (Ag0.90Ca0.05)(Nb0.95Ta0.05)O(3)ceramics exhibit an enhanced recoverable energy storage density (3.36 J/cm(3)) and efficiency (58.3%) with good temperature and frequency stability. The same composition shows excellent charge and discharge properties with a discharge current as high as 91.5 A and fast discharge speed (150 ns discharge period). All these merits demonstrate that AgNbO3-based antiferroelectric ceramics are competitive with other lead-based and lead-free dielectric capacitors, which are promising candidates for dielectric energy storage applications. |
| WOS关键词 | FREE ANTIFERROELECTRIC CERAMICS ; FERROELECTRIC PHASE-TRANSITION ; PERFORMANCE ; RAMAN |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | WILEY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27789]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Chao, WN,Yang, TQ,Li, YX,et al. Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2020. |
| APA | Chao, WN,Yang, TQ,Li, YX,&Liu, ZF.(2020).Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics.JOURNAL OF THE AMERICAN CERAMIC SOCIETY. |
| MLA | Chao, WN,et al."Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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