کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7851959 | 1508866 | 2015 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication and microwave absorption properties of magnetite nanoparticle-carbon nanotube-hollow carbon fiber composites
ترجمه فارسی عنوان
خواص ساختاری و جذب مایکروویو کامپوزیتهای فیبر کربن نانولوله کربن نانوذرات کربنی مگنتیت
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
Absorbents with “tree-like” structures, which were composed of hollow porous carbon fibers (HPCFs) acting as “trunk” structures, carbon nanotubes (CNTs) as “branch” structures and magnetite (Fe3O4) nanoparticles playing the role of “fruit” structures were prepared by chemical vapor deposition technique and chemical reaction. Microwave reflection loss, permittivity and permeability of Fe3O4-CNTs-HPCFs composites were investigated in the frequency range of 2-18Â GHz. It was proven that prepared absorbents possessed the excellent electromagnetic wave absorbing performances. The bandwidth with a reflection loss less than â15Â dB covers a wide frequency range from 10.2 to 18Â GHz with the thickness of 1.5-3.0Â mm, and the minimum reflection loss is â50.9Â dB at 14.03Â GHz with a 2.5Â mm thick sample layer. Microwave absorbing mechanism of the Fe3O4-CNTs-HPCFs composites is concluded as dielectric polarization and the synergetic interactions exist between Fe3O4 and CNTs-HPCFs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 81, January 2015, Pages 20-28
Journal: Carbon - Volume 81, January 2015, Pages 20-28
نویسندگان
Jun Qiu, Tingting Qiu,