کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1461057 989614 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dielectric and electromagnetic wave absorbing properties of TiC/epoxy composites in the GHz range
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Dielectric and electromagnetic wave absorbing properties of TiC/epoxy composites in the GHz range
چکیده انگلیسی

The complex permittivity and reflection loss of TiC powders filled with epoxy resin were investigated in the frequency range of 2.6–18 GHz. Both the real and imaginary parts of the complex permittivity increased with increasing TiC content. A rapid increase in complex permittivity and strong frequency dependence characteristics was observed for the composite filled with high content of TiC. Based on the transmission line theory, single-layer and multi-layer absorbing coatings were designed. For single-layer coatings, the reflection loss below −5 dB (over 70% microwave absorbing) can be obtained in the frequency range of 13–18 GHz for the composite with 50 wt% TiC and 7–15.2 GHz for the composite with 60 wt% TiC. By optimizing the absorber structure and the associated thickness, the absorbing bandwidth of the multi-layer absorber can be largely broadened. The reflection loss below −5 dB can be obtained in the frequency range of 2.9–18 GHz for the four-layer absorber.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 7, Part B, August 2014, Pages 10749–10754
نویسندگان
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