Abstract
In recent years, there has been a growing demand for polymer-based multifunctional materials for electronic packaging applications. For this purpose, epoxy/Li0.5AlxFe2.5-xO4 (95:5 wt%) nanocomposite samples have been prepared, where (x = 0, 0.15, 0.25, 0.35, and 0.45). The interface region between the epoxy and the inserted nanoferrite fillers plays a significant role in the interpretation of the properties of the nanocomposite samples according to the dual interface nanolayer model. The magnetic properties (Ms, Mr, Hc) of the composite samples extracted from the M-H hysteresis loops, change with increasing Al3+ ions content following the same trend as their corresponding pure ferrites counterparts, but with lower values as expected. Whereas, the dielectric properties (σʹac, εʹ, and tanδ) almost increase. The dielectric strength and energy density are evaluated for the nanocomposite samples by using sphere to plane electrode configuration. The results of εʹ, tanδ, dielectric strength, energy density and the good magnetic properties of the composite samples, indicate that they are promising candidates for electronic packaging applications as well as can serve as a typical EMI suppressor.
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