Effect of poly vinylidine addition on the structural and electrical properties of nickel zinc ferrite

الملخص EN

Samples of Ni0.3Zn0.7Fe2O4 and composite films of x% (Ni0.3Zn0.7Fe2O4) / (PVDF) (1-x), (x%=5, 10, 15, 20 and 25%) were synthesized using heavy duty ball milling.

The sample milled for90 hours shows that peak intensities of the initial oxides were reduced during the ball milling process and completely disappeared by annealing at 1373 K.

There are 2 peaks at (2θ = 18.6 and 27°) corresponding to planes (020) and (021) which are attributed to α- phase of (PVDF) where β-phase of PVDF is characterized by the peaks at (2θ = 20.8°) corresponding to the (110) planes.

The phase transformation from the non-polar α-phase to the polar electroactive β-phase of PVDF by increasing NZF content has been investigated by XRD analysis and FTIR spectroscopy.

The DC resistivity of the composite samples at room temperature reaches a maximum at 5% NZF, and above this ratio, it begins to decrease.

The dielectric constant and dielectric loss were studied at a constant frequency.