کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8156631 | 1524849 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and electromagnetic wave absorption of chain-like CoNi by a hydrothermal route
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
One-dimension CoNi chains with lengths of several to tens and diameter of 1-2 μm were synthesized through a tartrate assisted hydrothermal method at 140 °C for 15 h. The obtained CoNi chains were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TG). The electromagnetic characteristics of CoNi chains were studied at 1-18 GHz. The maximum reflection loss (RL) can reach â34.33 dB at 17.5 GHz with a thickness of 1.0 mm. The value of reflection loss below â10 dB can be tuned in the 4.6-18 GHz by adjusting the absorber thickness of 1.0-3.0 mm. The excellent microwave absorption properties of the CoNi chains are ascribed to the good impedance matching, multiple polarization and unique chain-like shape. The experimental results showed that chain-like CoNi is a promising candidate as a low density, strong-absorption, wide-band and thin-thickness microwave absorber.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 372, December 2014, Pages 195-200
Journal: Journal of Magnetism and Magnetic Materials - Volume 372, December 2014, Pages 195-200
نویسندگان
Biao Zhao, Gang Shao, Bingbing Fan, Yajun Xie, Rui Zhang,