کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7897769 | 1510128 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced microwave absorbance of oxidized SiCf/AlPO4 composites via the formation of a carbon layer on the SiC fibre surface
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A single-layer radar-absorbing structure active in the X-band (8.2â¯GHz to 12.4â¯GHz) was demonstrated by blending SiC fibres with an AlPO4 matrix material. The as-prepared SiCf/AlPO4 composites were oxidized at 1273â¯K for several hours to investigate the effects of oxidation on the dielectric and wave-absorbing properties. Scanning and transmission electron microscopy were used to characterize the morphology and microstructure of the composites. The AlPO4-SiO2 solid solution during oxidation promoted the formation of a complete carbon layer on the SiC fibre surface. The real and imaginary parts of the SiCf/AlPO4 composites increased from 4.2-4.4 to 5.9-7.1 and from 0.08-0.2 to 3.9-5.2, respectively, with increasing oxidation time from 0 to 10â¯h, respectively. When the thickness of the composites increased from 2.9â¯mm to 3.3â¯mm, the wave-absorbing property noticeably improved due to the formation of a carbon layer on the SiC fibre surface after oxidation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 13, October 2018, Pages 4356-4362
Journal: Journal of the European Ceramic Society - Volume 38, Issue 13, October 2018, Pages 4356-4362
نویسندگان
Feng Wan, Jianhui Yan, Hongmei Xu,