کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11263122 | 1781703 | 2019 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical, dielectric and microwave absorption properties of FeSiAl/Al2O3 composites fabricated by hot-pressed sintering
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
FeSiAl/Al2O3 composites were fabricated by hot-pressed sintering to evaluate the mechanical, dielectric and microwave absorption properties. The results show that the flexural strength of the composites increases with the increase of FeSiAl content, while the density and micro-hardness exhibit a downward tendency. The complex permittivity increases with increasing FeSiAl content in the X-band, which is resulted from the enhanced interfacial polarization, relaxation loss and conductance loss. Meanwhile, a rapid enhancement of complex permittivity for the composite with 10â¯wt.% FeSiAl is achieved due to the formation of conductive clusters and enhanced conductance loss. By calculating the reflection loss, the composite with 5â¯wt.% FeSiAl possesses the effective absorption bandwidth (<-10â¯dB) 1.9â¯GHz in 9.1-11.0â¯GHz and the strong absorption peak of â34.2â¯dB is achieved at 9.4â¯GHz when the thickness is 1.9â¯mm due to its best impedance matching and appropriate electromagnetic wave attenuation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 774, 5 February 2019, Pages 813-819
Journal: Journal of Alloys and Compounds - Volume 774, 5 February 2019, Pages 813-819
نویسندگان
Liang Zhou, Julong Huang, Xingang Wang, Gexin Su, Jieyou Qiu, Yanli Dong,