Temperature-dependent dielectric and Raman spectra and microwave dielectric properties of gehlenite-type Ca2Al2SiO7 ceramics
文献类型：期刊论文
| 作者 | Song, Zhengjun; Song, Kaixin; Liu, Bing; Zheng, Peng; Bafrooei, Hadi Barzegar; Su, Weitao; Lin, Huixing; Shi, Feng; Wang, Dawei; Reaney, I. M. |
| 刊名 | INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
 |
| 出版日期 | 2019-12-31 |
| ISSN号 | 1546-542X |
| 关键词 | 5G microwave ceramics silicate dielectrics |
| DOI | 10.1111/ijac.13414 |
| 文献子类 | Article; Early Access |
| 英文摘要 | Gehlenite-type Ca2Al2SiO7 ceramics were prepared by the conventional solid-state reaction. Two anomalies were found in the plot of dielectric constant vs temperature, which were associated with space charge polarization. Pure phase crystal structure and no phase transition were observed in the temperature-dependent X-ray diffraction (XRD) patterns and Raman spectra from room temperature (RT) to 900 degrees C. There was relevant relation between Q x f and tau(integral) with the stretching vibrations of Ca-O bond and O-Ca-O bending in CaO8 polyhedron. Excellent microwave dielectric properties (epsilon(r) = 8.86, Q x f = 22 457 GHz, and tau(f) = -51.06 ppm/degrees C) were obtained for Ca2Al2SiO7 sintered at 1440 degrees C in air, which had the potential application to use in microwave and millimeter-wave devices such as capacitors and substrates. |
| WOS关键词 | IONS ; OCCUPATION ; BEHAVIOR |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | WILEY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27494]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Song, Zhengjun,Song, Kaixin,Liu, Bing,et al. Temperature-dependent dielectric and Raman spectra and microwave dielectric properties of gehlenite-type Ca2Al2SiO7 ceramics[J]. INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY,2019. |
| APA | Song, Zhengjun.,Song, Kaixin.,Liu, Bing.,Zheng, Peng.,Bafrooei, Hadi Barzegar.,...&Reaney, I. M..(2019).Temperature-dependent dielectric and Raman spectra and microwave dielectric properties of gehlenite-type Ca2Al2SiO7 ceramics.INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY. |
| MLA | Song, Zhengjun,et al."Temperature-dependent dielectric and Raman spectra and microwave dielectric properties of gehlenite-type Ca2Al2SiO7 ceramics".INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY (2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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