Crystal structure and thermal characteristics of Mn modified ultra-high curie temperature (>800 °C) Bi2WO6 piezoelectric ceramics
文献类型：期刊论文
| 作者 | S. Peng; L. Wang; L. Qin; C. Yan; H. Huang; Z. An; L. Zheng; Liao, Q.; Zheng LR(郑黎荣)
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| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2017 |
| 卷号 | 692页码:454-459 |
| 关键词 | Piezoelectric materials Crystal structure Synchrotron radiation Thermal characteristic Seafloor hydrothermal vents |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2016.09.126 |
| 文献子类 | Article |
| 英文摘要 | Searching low sintering temperature material with ultra-high Curie temperature (> 800 degrees C) is urgent to seafloor hydrothermal vents detection. Bi2WO6 was first improved to possess ultra-high Curie temperature and ultra-high depolarization temperature by experiment. The MnCO3 was selected as dopant materials due to its excellent effect on improvement of sintering abilities and piezoelectric properties. The density test shows that Mn addition can obviously improve the density of Bi2WO6 ceramics from 93.6% to 97.76%, and the grains also changed from round to layered. The crystal structure change with Mn addition was tested by synchrotron radiation and calculated by ab initio and Rietveld refinement. The symmetry group of ultra-high Curie temperature Bi2WO6 is Aba(2) ( 41). The XAFS results show that Mn atom more likely at the Bi-site in the crystal structure of Bi(2)W(1-x)MnxO(6) and the Mn ion has the valence alternation. The Curie temperature of Bi2W1-xMnxO6 with increasing x are 997 degrees C, 915 degrees C, 890 degrees C, 729 degrees C, respectively, and the depolarization temperatures are around 940 degrees C, 895 degrees C, 825 degrees C, and 700 degrees C respectively. The results show that Bi2W1-xMnxO6 ( x <= 0.01) ceramics are suitable for the ultra-high temperature applications of sensors or transducers on seafloor hydrothermal vents detection. (C) 2016 Elsevier B.V. All rights reserved. |
| 电子版国际标准刊号 | 1873-4669 |
| WOS关键词 | PHASE |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000386231200059 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285363]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | S. Peng,L. Wang,L. Qin,et al. Crystal structure and thermal characteristics of Mn modified ultra-high curie temperature (>800 °C) Bi2WO6 piezoelectric ceramics[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,692:454-459. |
| APA | S. Peng.,L. Wang.,L. Qin.,C. Yan.,H. Huang.,...&郑黎荣.(2017).Crystal structure and thermal characteristics of Mn modified ultra-high curie temperature (>800 °C) Bi2WO6 piezoelectric ceramics.JOURNAL OF ALLOYS AND COMPOUNDS,692,454-459. |
| MLA | S. Peng,et al."Crystal structure and thermal characteristics of Mn modified ultra-high curie temperature (>800 °C) Bi2WO6 piezoelectric ceramics".JOURNAL OF ALLOYS AND COMPOUNDS 692(2017):454-459. |
入库方式： OAI收割
来源：高能物理研究所
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