کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5490956 | 1524786 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Facile preparation and enhanced microwave absorption properties of flake carbonyl iron/Fe3O4 composite
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Facile preparation and enhanced microwave absorption properties of flake carbonyl iron/Fe3O4 composite Facile preparation and enhanced microwave absorption properties of flake carbonyl iron/Fe3O4 composite](/preview/png/5490956.png)
چکیده انگلیسی
Flake carbonyl iron/Fe3O4 (FCI/Fe3O4) composites with enhanced microwave absorption properties were prepared by a direct and flexible surface oxidation technique. The phase structures, morphology, magnetic properties, frequency-dependent electromagnetic and microwave absorption properties of the composites were investigated. The measurement results showed that lower permittivity as well as modest permeability was obtained by the FCI/Fe3O4 composites. The calculated microwave absorption properties indicated that enhanced absorption efficiency and broader absorption band were obtained by the FCI/Fe3O4 composite comparing with the FCI composite. The absorption frequency range with reflection loss (RL) below â5Â dB of FCI/Fe3O4 composites at reaction time of 90Â min at thickness of 1.5Â mm is 13.3Â GHz from 4.7 to 18Â GHz, while the bandwidth of the FCI composite is only 5.9Â GHz from 2.6 to 8.5Â GHz at the same thickness. Thus, such absorbers could act as effective and wide broadband microwave absorbers in the GHz range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 435, 1 August 2017, Pages 26-32
Journal: Journal of Magnetism and Magnetic Materials - Volume 435, 1 August 2017, Pages 26-32
نویسندگان
Dandan Min, Wancheng Zhou, Fa Luo, Dongmei Zhu,