Bond characteristics and microwave dielectric properties of (Li0.5Ga0.5)(2+) doped Mg2Al4Si5O18 ceramics
文献类型：期刊论文
| 作者 | Lou, WC; Song, KX; Hussain, F; Liu, B; Bafrooei, HB; Lin, HX; Su, WT; Shi, F; Wang, DW |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2020-12-15 |
| 期号 | 18页码:28631 |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2020.08.022 |
| 文献子类 | Article |
| 英文摘要 | Cordierite ceramic is one kind of important electronic materials for radio frequency circuit. In this work, Mg2-x(Li0.5Ga0.5)(x)Al4Si5O18 (0 <= x <= 0.1) ceramics with pure cordierite phase, were successfully synthesized via the traditional solid state reaction method. The dependence of microwave dielectric properties on the crystal structure was analyzed in detail by the complex chemical bond theory (P-V-L theory) and classical dielectric polarizability theory. The dielectric constant (epsilon(r)) was mainly related to the density, bond ionicity and ionic polarizability of Mg2-x (Li0.5Ga0.5)(x)Al4Si5O18 ceramics. The quality factor (Q x f) was in relationship to the lattice energy, atomic packing fraction and centrosyrnmetry of [Si4Al2O18] hexagonal ring in cordierite crystal structure. The temperature coefficient of resonant frequency (tau(f)) value was dominated by the bond energy and distortions of [MgO6] octahedron. The maximum values of Q x f = 50,560 GHz and epsilon(r) = 4.72 were obtained for undoped Mg2Al4Si5O18 and Mg1.98Li0.01Ga0.01Al4Si5O18, respectively. |
| WOS关键词 | LATTICE ENERGY ; THERMAL-EXPANSION ; CRYSTAL-STRUCTURE ; RAMAN-SPECTRA ; COEFFICIENT ; REFINEMENT ; IONICITY |
| 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/331005/27582]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Lou, WC,Song, KX,Hussain, F,et al. Bond characteristics and microwave dielectric properties of (Li0.5Ga0.5)(2+) doped Mg2Al4Si5O18 ceramics[J]. CERAMICS INTERNATIONAL,2020(18):28631. |
| APA | Lou, WC.,Song, KX.,Hussain, F.,Liu, B.,Bafrooei, HB.,...&Wang, DW.(2020).Bond characteristics and microwave dielectric properties of (Li0.5Ga0.5)(2+) doped Mg2Al4Si5O18 ceramics.CERAMICS INTERNATIONAL(18),28631. |
| MLA | Lou, WC,et al."Bond characteristics and microwave dielectric properties of (Li0.5Ga0.5)(2+) doped Mg2Al4Si5O18 ceramics".CERAMICS INTERNATIONAL .18(2020):28631. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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