We presented the application of the analytical model for determining of the effective properties of the composite, in order to predict the composition of the composite on the basis of known intrinsic properties of the inclusions and matrix. Model was applied on the specific soft-magnetic composite with ceramic matrix and inclusions in the microwave frequency range. We validated the results with other analytical methods and established good prediction ability of the model. This case shows possibility of simpler and faster analysis of composite structure.
COBISS.SI-ID: 20432167
With a novel 3D numerical analysis of composite system we varied complex intrinsic properties of the inclusions and distributions in the matrix. We determined discrepancy between predictions of the analytical models and numerical calculations, with large effect of the agglomeration. Also, the imaginary part of permeability importantly changes the effective properties of the composite, which is underestimated by the analytical models. Numerical results confirm experimental findings and allow parametric and controlled analysis of individual parameter on the effective properties.
COBISS.SI-ID: 6494548
We performed numerical and experimental analysis of the conductive inclusions in soft-magnetic composites with analysis of agglomeration and percolation phenomena. Results have confirmed large effect of the microstructure that increases with inclusions' conductivity. Percolation significantly enhances the effect of eddy-currents and we analyzed also inclusions with non-conducive shell. The results of the measurements on composites with carbonyl iron inclusions confirm the importance of the microstructure and demonstrate the effect of individual parameters on the effective properties.
COBISS.SI-ID: 6494548