Anantharaman, M R; Muhammad, Abdul Jamal E; Joy, P A; Philip, Kurian(Elsevier, January 3, 2010)
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Abstract:
Nickel nanocomposites were prepared by incorporating nickel nanoparticles in a neoprene matrix according
to a specific recipe for various loadings of nickel particles. The dielectric properties of these composites
were evaluated for different frequencies ranging from 100 kHz to 8MHz at different temperatures from
30 ◦C to 120 ◦C. The dielectric permittivity increases with increase of nickel concentration. Increase in
temperature enhances the permittivity initially, till 40 ◦C and thereafter the permittivity decreases. The
dielectric loss exhibits relaxation peaks and the peaks shift to lower frequencies with increase in volume
fraction of the nickel nanoparticles in the matrix. The evaluation of magnetic and dielectric properties
of these composites suggests that the dielectric permittivity can be tailored by an appropriate loading of
the filler using semi-empirical equations and the magnetic properties vary according to simple mixture
equations
Description:
Materials Chemistry and Physics 121 (2010) 154–160