کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5439686 | 1509880 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In situ preparation of carbon/Fe3C composite nanofibers with excellent electromagnetic wave absorption properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: In situ preparation of carbon/Fe3C composite nanofibers with excellent electromagnetic wave absorption properties In situ preparation of carbon/Fe3C composite nanofibers with excellent electromagnetic wave absorption properties](/preview/png/5439686.png)
چکیده انگلیسی
Poly(vinyl pyrrolidone) (PVP)-based carbon/Fe3C composite nanofibers (C/Fe3C CNFs) have been successfully prepared by carbonization of as-electrospun PVP/ferric nitrate nanofibers. Unlike the pristine PVP nanofibers, the PVP/ferric nitrate nanofibers can retain fibers structure after carbonization, in which Fe3C nanoparticles are well-dispersed. More importantly, the as-prepared wax composites exhibit high electromagnetic wave absorption abilities, which can be attributed to the formation of the C/Fe3C CNFs “conductive network”, and leads to a more effective dielectric loss in terms of dissipating the induced current in the wax composites. Specifically, the CNFs/wax composites with a low filler ratio of 10Â wt% shows the minimum reflection loss of â62.6Â dB at 11.25Â GHz in a thin matching thickness of 3.6Â mm, and the effective bandwidth below â10Â dB can reach up to 6.5Â GHz. Thus, this work demonstrates a facile, cost-effective synthesized strategy to prepare carbon-based lightweight composite nanofibers with superior electromagnetic wave absorption properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 92, January 2017, Pages 33-41
Journal: Composites Part A: Applied Science and Manufacturing - Volume 92, January 2017, Pages 33-41
نویسندگان
Chongyang Sun, Yiping Guo, Xuehui Xu, Qi Du, Huanan Duan, Yujie Chen, Hua Li, Hezhou Liu,