Magnetic and microwave absorption properties of PVB/Fe₃O₄ and PVB/NiFe₂O₄ composites

Electromagnetic and microwave absorbing properties of Polyvinylbutyral (PVB)/Fe 3 O 4 and PVB/NiFe 2 O 4 composites were investigated in the 1‐14 GHz. PVB/filler particles (Fe 3 O 4 and NiFe 2 O 4 ) composites were prepared with 90/10 mixture ratios via Ultrasonic Probe Sonicator method in solution. The complex permittivity (ε ′ − jε ′′ ) and permeability ( μ ′‐ jμ ″) of the composites have been measured at different microwave frequencies in...