Title :
Magnetic and Reflection Loss Characteristics of Substituted Barium Ferrite/Functionalized Multiwalled Carbon Nanotube
Author :
Ghasemi, Abdorasoul ; Javadpour, S. ; Xiaoxi Liu ; Morisako, Akimitsu
Author_Institution :
Mater. Eng. Dept., Malek Ashtar Univ. of Technol., Shahin Shahr, Iran
Abstract :
Magnetic multiwalled carbon nanotube (MWCNTs) nanocomposites have been created by the assembly of Mg-Ni-Ti substituted barium ferrite nanoparticles onto surface of MWCNTs. X-ray diffraction (XRD) and transmission electron microscope (TEM) were used to demonstrate the successful attachment of ferrite nanoparticles to MWCNTs. Vibrating sample magnetometer (VSM) confirms the relatively strong dependence of saturation of magnetization and coercivity with the volume percentage of MWCNTs. Reflection loss evaluations indicated that the nanocomposites display a great potential application as wide-band electromagnetic wave absorbers.
Keywords :
X-ray diffraction; barium compounds; carbon nanotubes; coercive force; ferrites; magnesium compounds; magnetic particles; magnetometers; nanocomposites; nanoparticles; titanium compounds; transmission electron microscopy; BaFe9Mg0.75Ni0.75Ti1.5O19; C; X-ray diffraction; coercivity; functionalized multiwalled carbon nanotube; magnetic characteristics; magnetic multiwalled carbon nanotube; magnetization saturation; nanocomposites; reflection loss characteristics; substituted barium ferrite nanoparticles; transmission electron microscope; vibrating sample magnetometer; Barium; Carbon nanotubes; Ferrites; Nanocomposites; Nanoparticles; Resonant frequency; Saturation magnetization; Carbon nanotubes; ferrites; magnetic properties; reflection loss;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2157992
