Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.matchemphys.2019.122584 |
| Homogeneous mixture of hematite and its electrical properties | |
| Gomaa, Mohamed Mahmoud | |
| 通讯作者 | Gomaa, Mohamed Mahmoud |
| 来源期刊 | MATERIALS CHEMISTRY AND PHYSICS
 |
| ISSN | 0254-0584 |
| EISSN | 1879-3312 |
| 出版年 | 2020 |
| 卷号 | 243 |
| 英文摘要 | The Electrical properties of substances respond quickly to slight changes according to the manner at which particles or grains are dispersed everywhere in the material (texture). Also, they react quickly to their conductor component concentrations. In this article, we will try to preserve the homogeneity of specimens. So, the sample elements (pure sand and pure hematite) are crushed separately, and different successive hematite (conductor) concentrations (East Aswan, in the Eastern Desert, Cairo, Egypt) mixed with pure sand. Different homogenous combinations and quantities of hematite put together, and electrical properties were measured. Measurements made for electrical properties at dry state condition at constant temperature (similar to 20 degrees C). The frequency range used was 0.1 Hz - 10(5) Hz. The electrical spectrum, of the measurements, varies substantially according to measured frequency range and as stated by the composition or constitution or arrangement of specimens (sample texture). There are two conduction regions, as asserted by the conductivity that is determined by the frequency (two slopes). Permittivity increases linearly with increasing concentration. Permittivity is becoming smaller with the rising of the spectrum at a special rate. Electrical properties show universal Jonscher's law. The change in the specimens is the hematite conductor concentration (distributed homogeneously around sand grains) and probably the difference in the texture of specimens. Percolation theory is used to interpret the electrical properties of mixtures. Classical mixture formulas can be suggested to understand these homogeneous mixture samples. |
| 英文关键词 | Hematite Conductivity Permittivity Dielectric constant Electric Sand Impedance |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Egypt |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000523631300033 |
| WOS关键词 | RENORMALIZATION-GROUP ; WATER SATURATION ; POROUS ROCKS ; CONDUCTIVITY ; SANDSTONE ; SPECTROSCOPY ; MAGMA ; MODEL |
| WOS类目 | Materials Science, Multidisciplinary |
| WOS研究方向 | Materials Science |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/315156 |
| 作者单位 | Natl Res Ctr, Geophys Explorat Grp, Geophys Sci Dep, El Tahrir St, Dokki 12311, Egypt |
| 推荐引用方式 GB/T 7714 | Gomaa, Mohamed Mahmoud. Homogeneous mixture of hematite and its electrical properties[J],2020,243. |
| APA | Gomaa, Mohamed Mahmoud.(2020).Homogeneous mixture of hematite and its electrical properties.MATERIALS CHEMISTRY AND PHYSICS,243. |
| MLA | Gomaa, Mohamed Mahmoud."Homogeneous mixture of hematite and its electrical properties".MATERIALS CHEMISTRY AND PHYSICS 243(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Gomaa, Mohamed Mahmoud]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Gomaa, Mohamed Mahmoud]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Gomaa, Mohamed Mahmoud]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
