Crystal structures, dielectric properties, and lattice vibrational characteristics of (1-x)CaWO4-xTiO(2) composite ceramics
文献类型：期刊论文
| 作者 | Lv, JQ; Xiao, EC; Li, XH; Dong, XL; Chen, Y; Yue, ZX; Shi, F |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2020-02-15 |
| 期号 | 3页码:3715 |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2019.10.092 |
| 文献子类 | Article |
| 英文摘要 | (1-x)CaWO4-xTiO(2) (CWT) ceramics were fabricated by conventional solid-state sintering method at 1200 degrees C for 4 h. X-ray diffraction data show that CaWO4 and TiO2 coexist as composite ceramics and Rietveld refinement reveals the change in crystal structures of CWT system. There are seven Raman vibrational modes for CaWO4, two Raman modes for TiO2, and eight infrared vibrational modes for CaWO4, whose intensities decrease with increasing TiO2 content. The theoretical properties obtained from four-parameter semiquantum model coincide with those calculated from C-M and damping equations. The structure-property relationships of CWT system were established based on the lattice vibrational modes. When x = 0.15, the sample achieves the optimum dielectric properties with epsilon(r) = 10.86, Q x f = 16046 GHz (f = 15.51 G), tau(f) = -15.99 ppm/degrees C. |
| WOS关键词 | PEROVSKITE CERAMICS ; MICROWAVE ; TEMPERATURE ; SPECTROSCOPY ; SPECTRA |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28299]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Lv, JQ,Xiao, EC,Li, XH,et al. Crystal structures, dielectric properties, and lattice vibrational characteristics of (1-x)CaWO4-xTiO(2) composite ceramics[J]. CERAMICS INTERNATIONAL,2020(3):3715. |
| APA | Lv, JQ.,Xiao, EC.,Li, XH.,Dong, XL.,Chen, Y.,...&Shi, F.(2020).Crystal structures, dielectric properties, and lattice vibrational characteristics of (1-x)CaWO4-xTiO(2) composite ceramics.CERAMICS INTERNATIONAL(3),3715. |
| MLA | Lv, JQ,et al."Crystal structures, dielectric properties, and lattice vibrational characteristics of (1-x)CaWO4-xTiO(2) composite ceramics".CERAMICS INTERNATIONAL .3(2020):3715. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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