A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Electromagnetic wave absorbing properties of multi-walled carbon nanotube/cement composites
Highlights We studied the wave absorbing properties of MWCNT/cement composites. 0.6wt.% MWCNTs can improve the wave absorbing properties of cement composites. 0.9wt.% MWCNTs make the bandwidth below −10dB reach 7.1GHz between 8 and 18GHz.
Abstract The electromagnetic wave absorbing properties of multi-walled carbon nanotube (MWCNT)/cement composites were studied. The influence of the MWCNT content and sample thickness on the electromagnetic wave reflectivity was discussed and analyzed in the frequency ranges of 2–8GHz and 8–18GHz. When the MWCNT content is 0.6wt.%, the cement mortar sample with a thickness of 25mm can remarkably absorb electromagnetic waves close to the absorbing peaks in the frequency range of 2–8GHz. The strongest peak with a reflectivity of −28dB is obtained at 2.9GHz. The cement mortar sample with a thickness of 35mm presents beneficial broadband wave absorption performance between 8 and 18GHz. The addition of 0.9 wt.% MWCNTs can notably enhance the wave absorption performance of the cement mortar and make the bandwidth below −10dB reach 7.1GHz in the frequency range of 8–18GHz.
Electromagnetic wave absorbing properties of multi-walled carbon nanotube/cement composites
Highlights We studied the wave absorbing properties of MWCNT/cement composites. 0.6wt.% MWCNTs can improve the wave absorbing properties of cement composites. 0.9wt.% MWCNTs make the bandwidth below −10dB reach 7.1GHz between 8 and 18GHz.
Abstract The electromagnetic wave absorbing properties of multi-walled carbon nanotube (MWCNT)/cement composites were studied. The influence of the MWCNT content and sample thickness on the electromagnetic wave reflectivity was discussed and analyzed in the frequency ranges of 2–8GHz and 8–18GHz. When the MWCNT content is 0.6wt.%, the cement mortar sample with a thickness of 25mm can remarkably absorb electromagnetic waves close to the absorbing peaks in the frequency range of 2–8GHz. The strongest peak with a reflectivity of −28dB is obtained at 2.9GHz. The cement mortar sample with a thickness of 35mm presents beneficial broadband wave absorption performance between 8 and 18GHz. The addition of 0.9 wt.% MWCNTs can notably enhance the wave absorption performance of the cement mortar and make the bandwidth below −10dB reach 7.1GHz in the frequency range of 8–18GHz.
Electromagnetic wave absorbing properties of multi-walled carbon nanotube/cement composites
Wang, Baomin (author) / Guo, Zhiqiang (author) / Han, Yu (author) / Zhang, Tingting (author)
Construction and Building Materials ; 46 ; 98-103
2013-04-04
6 pages
Article (Journal)
Electronic Resource
English
Electromagnetic wave absorbing properties of multi-walled carbon nanotube/cement composites
| Online Contents | 2013
Electromagnetic wave absorbing properties of multi-walled carbon nanotube/cement composites
| British Library Online Contents | 2013
Electromagnetic wave absorbing characteristics of carbon black cement-based composites
| Online Contents | 2010
| British Library Online Contents | 2006