کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
818737 | 906536 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave absorption properties of fabric coated absorbing material using modified carbonyl iron power
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The modified absorbing agent was prepared by depositing copper particles on carbonyl iron power (CIP) using a ultrasonic electroless copper plating method. Subsequently, a fabric coated absorbing material was fabricated on non-woven fabric coated absorbing dope containing 85Â wt% modified CIP. Scanning electron microscope (SEM) and energy dispersion spectrum (EDS) were used to analyze the microstructure and components of modified CIP. Electromagnetic parameters of modified CIP and reflectivity losses of multi-layer fabric coated absorbing material were measured by a 3Â cm waveguide system. The results showed that copper particles were successfully deposited on the surface of CIP. Compared with initial CIP, the values of the complex permeability and permittivity of modified CIP increased after CIP was disposed by ultrasonic electroless plating process, which resulted in a minimum reflection loss â8.43Â dB with the thickness of about 2Â mm in the frequency range of 8-12 GHz. Furthermore, non-woven fabric absorbing material has a reflection loss â26Â dB with the matching thickness of 2.08Â mm at 9.35Â GHz. It was concluded that ultrasonic electroless copper plating process had great effects on increasing microwave absorption properties of CIP. Moreover, structure of non-woven fabric had a contribution to improve absorbing performance. In addition, because fabric used was light enough, monolayer non-woven fabric coated absorbing material (FCAM) had a low planar density about 0.2Â kg/m2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 42, Issue 4, June 2011, Pages 626-630
Journal: Composites Part B: Engineering - Volume 42, Issue 4, June 2011, Pages 626-630
نویسندگان
Wei-ping Li, Li-qun Zhu, Jing Gu, Hui-cong Liu,