کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7992110 | 1516145 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave absorbing performance of polymer-derived SiCN (Ni) ceramics prepared from different nickel sources
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
![عکس صفحه اول مقاله: Microwave absorbing performance of polymer-derived SiCN (Ni) ceramics prepared from different nickel sources Microwave absorbing performance of polymer-derived SiCN (Ni) ceramics prepared from different nickel sources](/preview/png/7992110.png)
چکیده انگلیسی
A series of nickel-containing polymer-derived SiCN ceramics (PDC-SiCN (Ni) ceramics) were successfully prepared from different nickel sources following a polymer-derived method. The scanning electron microscopy (SEM) and transmission electron microscope (TEM) were used to peruse the microstructure of the ceramics. The electromagnetic and microwave absorption properties of PDC-SiCN (Ni) ceramics in the 2-18â¯GHz range were investigated. Results showed that the Ni nanoparticles in ceramics were dispersed in the amorphous SiCN matrix and the synergetic effect of dielectric and magnetic loss enhanced electromagnetic attenuation of the materials. The optimal reflection loss (RL) was found for the PDC-SiCN (Ni) ceramics with Ni powders as nickel source, being â78.6â¯dBâ¯at 17.1â¯GHz when the thickness was 3.5â¯mm and the bandwidth of RL below â10â¯dB (90% absorption) was 1.6â¯GHz. It meant that the PDC-SiCN (Ni) ceramics might exhibit a promising prospect as microwave absorbing materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 749, 15 June 2018, Pages 620-627
Journal: Journal of Alloys and Compounds - Volume 749, 15 June 2018, Pages 620-627
نویسندگان
Yu Liu, Yurun Feng, Hongyu Gong, Yujun Zhang, Xiao Lin, Bingying Xie, Junjie Mao,