کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6716492 | 1428744 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electromagnetic wave absorption properties of cement-based composites filled with graphene nano-platelets and hollow glass microspheres
ترجمه فارسی عنوان
خواص جذب موج الکترومغناطیسی کامپوزیت های مبتنی بر سیمان پر از نانو پلاکت های گرافن و میکروسکپ های شیشه ای توخالی
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کلمات کلیدی
کامپوزیت های مبتنی بر سیمان، گرافن پلاسمای نانو، میکروسپرس شیشه ای توخالی، جذب مایکروویو،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
The cement-based composites made from graphene nano-platelets (GN) and hollow glass microspheres (HGM) were prepared and its electromagnetic waves absorbing properties were researched in this work. Results show that the absorbing properties were improved after the combination of GN and HGM. As the filling ratio of glass microspheres increases, the value of absorption peak and the bandwidth below â5â¯dB increases at first and decreases afterwards. In addition, several sharp peaks were obtained and the values tend to appear at high frequency. With further increase of GN, the value at absorbing peak decreases and the curves become relatively flatter. When GN is 0.2%, HGM is 40% (vol/vol) and the thickness is 20â¯mm, materials have the excellent absorbing properties with the average reflectivity loss being â8.2â¯dB in the range of 2-18â¯GHz and the bandwidth was 4.4â¯GHz below â5â¯dB. The thickness of sample has a significant influence on the absorbing properties. The optimal thickness is 20-30â¯mm with 40% (vol/vol) HGM and 0.2% (wt/vol) GN combine together.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 162, 20 February 2018, Pages 280-285
Journal: Construction and Building Materials - Volume 162, 20 February 2018, Pages 280-285
نویسندگان
Xingjun Lv, Yuping Duan, Guoqing Chen,