کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5021383 | 1469371 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwaves absorbing characteristics of metal ferrite/multiwall carbon nanotubes nanocomposites in X-band
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microwaves absorbing characteristics of metal ferrite/multiwall carbon nanotubes nanocomposites in X-band Microwaves absorbing characteristics of metal ferrite/multiwall carbon nanotubes nanocomposites in X-band](/preview/png/5021383.png)
چکیده انگلیسی
The ferrite nanoparticles and ferrite/multiwall carbon nanotubes (Cu0.25Ni0.25Zn0.5Fe2O4/MWCNTs) nanocomposites with different concentrations of MWCNTs as filler are synthesized using co-precipitation and solution-mixing techniques. In brief, the MWCNTs were first purified for their quick dispersion and then acid functionalized to introduce carboxylic groups for effectively attaching ferrite nanoparticles and epoxy. These nanocomposites were examined for permittivity and permeability which revealed a strong dependency on filler concentration. In addition, we explored the microwave absorbing behavior of nanocomposites using network analyzer from 8.2 to 12.2 GHz frequency range. The reflection loss (RL) was calculated from complex permittivity and permeability data and maximum RL of â37.7 dB at 10.2 GHz with a sample thickness of 2.5 mm and bandwidth of 0.53 dB. The excellent microwave absorption with wide bandwidth is attributed to interfacial electric polarization, electromagnetic impedance matching, and multiple scattering network structure of Cu0.25Ni0.25Zn0.5Fe2O4/MWCNTs nanocomposites. This work indicates that the Cu0.25Ni0.25Zn0.5Fe2O4/0.16%-MWCNTs could be a promising microwave absorption material for application in X-band.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 114, 1 April 2017, Pages 139-148
Journal: Composites Part B: Engineering - Volume 114, 1 April 2017, Pages 139-148
نویسندگان
Munnazza Bibi, Syed Mustansar Abbas, Nisar Ahmad, Bakhtiar Muhammad, Zafar Iqbal, Usman Ali Rana, Salah Ud-Din Khan,