|Table of Contents|

Investigation on Antioxidation and Electromagnetic Wave Absorption Characteristics of Ni/SWNTs Nanocomposites

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2010年03期
Page:
391-395
Research Field:
Publishing date:

Info

Title:
Investigation on Antioxidation and Electromagnetic Wave Absorption Characteristics of Ni/SWNTs Nanocomposites
Author(s):
BI SongSU Xun-jiaYANG Jian-hongHOU Gen-liangXIAO Zhou
The Second Artillery Engineering College,Xi’an 710025,China
Keywords:
single-walled carbon nanotubes electroless deposition antioxidation permittivity electromagnetic wave Absorption
PACS:
TB383.1
DOI:
-
Abstract:
To improve the electromagnetic wave Absorption capacity of single-walled carbon nanotubes(SWNTs),the surfaces of SWNTs are coated with Ni by electroless deposition.The appearance,composition and microstructure of the coating are investigated and analyzed.The complex permittivity and complex permeability of the bulk samples synthesized by Ni/SWNTs powders and paraffin wax are measured in the frequency range from 8~18 GHz by vector network analyzer.The transmission electron microscopy(TEM) and energy-dispersive X-ray(EDX) spectroscopy investigation results show that the surfaces of the SWNTs are coated compactly,and the main composition of the coat is metal Ni.The thermo gravimetric analysis(TGA) curves show that the nickel-plated treatment increases the antioxidation temperature of SWNTs from 400℃ to 650℃.The electromagnetic parameter data show that the Ni/SWNTs/PAR complex exhibits electromagnetic permittivity well in the measured frequency range.When the thickness of the complex is 2.0 mm,the reflection loss is more than 10 dB in 2.5 GHz band width of X-band(8.2~12.4 GHz).The simulation result indicates that the complex has excellent electromagnetic wave Absorbing characteristics in X-band.

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Last Update: 2010-06-30