Symmetry of hexagonal ring and microwave dielectric properties of (Mg(1-x)Ln(x))(2)Al4SiO18+x (Ln = La, Sm) cordierite-type ceramics
文献类型：期刊论文
| 作者 | Song, Kaixin1; Liu, Peng1; Lin, Huixing2; Su, Weitao3; Jiang, Jun4; Wu, Song1; Wu, Jun1; Ying, Zhihua1; Qin, Huibin1 |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 36期号:5页码:1167-1175 |
| 关键词 | Microwave dielectric ceramics Silicate Mg2Al4SiO18 Low dielectric constant |
| 英文摘要 | Cordierite-type (Mg(1-x)Ln(x))(2)Al4SiO18+x (Ln = La, Sm, 0 <= x <= 0.35) ceramics with low permittivity (epsilon(r)) were fabricated by traditional solid state reaction method. Analysis of X-ray diffraction and Raman spectra demonstrate that the symmetry of hexagonal rings strongly affects the microwave dielectric properties of (Mg(1-x)Ln(x))(2)Al14Si5O18+x cordierite ceramics. [(Mg(1-x)Ln(x))(6)O-36] external hexagonal rings in cordierite ceramics tend to be distorted as Ln(3+) ions substitutes Mg2+ ions, and the shapes of [(Si4Al2)O-18] inner hexagonal rings are alternatively tuned from elliptical to circular. Compared with pure Mg2Al4Si cordierite ceramics, the improvement of [(Si4Al2)O-18] ring centro-symmetry and the uniform distribution of grain sizes obviously enhance the Qf value of (Mg(1-x)Ln(x))(2)Al4Si5O18+x cordierite type ceramics. The optimum microwave dielectric properties with epsilon(r) = 6.7, Qf = 78,500 (@14.3 GHz), tau(f) = -22 ppm/degrees C were obtained by (Mg0.95La0.05)(2)Al4Si5O18+0.05 ceramics. Relative thermal stability with epsilon(r) = 6.8, Qf= 24,800 GHz (@13.2 GHz), tau(r)= -17 ppm/ C were obtained by (Mg0.8Sm0.2)(2)Al4SiO18+0.2 ceramics. (C) 2015 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Ceramics |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | CRYSTAL-STRUCTURE ; SUBSTITUTION ; POLYMORPHISM ; COMPOSITES ; INDIALITE ; BEHAVIOR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369457300006 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23251]  |
| 专题 | 上海硅酸盐研究所_无机功能材料与器件重点实验室_期刊论文 |
| 作者单位 | 1.Hangzhou Dianzi Univ, Coll Elect & Informat Engn, Hangzhou 310018, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 3.Hangzhou Dianzi Univ, Coll Mat Sci & Environm Engn, Hangzhou 310018, Peoples R China 4.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Kaixin,Liu, Peng,Lin, Huixing,et al. Symmetry of hexagonal ring and microwave dielectric properties of (Mg(1-x)Ln(x))(2)Al4SiO18+x (Ln = La, Sm) cordierite-type ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2016,36(5):1167-1175. |
| APA | Song, Kaixin.,Liu, Peng.,Lin, Huixing.,Su, Weitao.,Jiang, Jun.,...&Qin, Huibin.(2016).Symmetry of hexagonal ring and microwave dielectric properties of (Mg(1-x)Ln(x))(2)Al4SiO18+x (Ln = La, Sm) cordierite-type ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,36(5),1167-1175. |
| MLA | Song, Kaixin,et al."Symmetry of hexagonal ring and microwave dielectric properties of (Mg(1-x)Ln(x))(2)Al4SiO18+x (Ln = La, Sm) cordierite-type ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 36.5(2016):1167-1175. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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