TY - JOUR T1 - On the magnetic and dielectric properties of nickel-neoprene nanoconaposites JF - Materials Chemistry and Physics Y1 - 2010 A1 - Jamal, E. Muhammad Abdul A1 - Joy, Pattayil Alias A1 - Kurian, Philip A1 - Anantharaman, Maliemadom R. KW - Composite materials KW - dielectric properties KW - Elastomers KW - magnetic properties AB -

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 8 MHz at different temperatures from 30 degrees C to 120 degrees C. The dielectric permittivity increases with increase of nickel concentration. Increase in temperature enhances the permittivity initially, till 40 degrees 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. (C) 2010 Elsevier B.V. All rights reserved.

PB - ELSEVIER SCIENCE SA CY - PO BOX 564, 1001 LAUSANNE, SWITZERLAND VL - 121 IS - 1-2 U3 - Foreign U4 - 2.353 ER -