کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8156829 | 1524847 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of BaAlxFe12âxO19-NPR nanocomposite as an efficient absorbing material in the X-band
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Development of BaAlxFe12âxO19-NPR nanocomposite as an efficient absorbing material in the X-band Development of BaAlxFe12âxO19-NPR nanocomposite as an efficient absorbing material in the X-band](/preview/png/8156829.png)
چکیده انگلیسی
An efficient BaAlxFe12âxO19- novolac phenolic resin (NPR) nanocomposite material is developed to use as absorbing material in the X band. The material developed has a hexagonal structure of nanosize aluminium substituted barium ferrite, as is confirmed by X-ray diffraction pattern studies. The average grain size of barium nanoparticles is found to be ~26Â nm. Measurement of complex permittivity and complex permeability in the X-band indicates increase of the properties with increase in Al3+ ions in the ferrite. A measured absorption study has been carried out on absorber fabricated on a metal backing based on the transmission line theory. Substitution of Fe3+ with Al3+ is found to increase the absorption properties of barium ferrite. Reflection loss measurement of the samples shows an enhancement of absorption from â27.56Â dB to â40.06Â dB with the variation of Al3+ substitution, x=1.0-1.6 in the BaAlxFe12âxO19 in NPR matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 374, 15 January 2015, Pages 516-524
Journal: Journal of Magnetism and Magnetic Materials - Volume 374, 15 January 2015, Pages 516-524
نویسندگان
S. Ozah, N.S. Bhattacharyya,