Synthesis and electromagnetic properties of Al/AlOx-coated Ni nanocapsules

Transform between the permeability and permittivity in Ni@C C NbC nanocomposites with enhanced microwave absorption properties

“…1. This tiny change can be attributed to the fact that Nb atoms with the larger radius enter into the Ni lattices through the evaporation and collision between Nb and Ni atoms in the high-temperature arc zero [24,25]. Fig.…”

Facile synthesis of Ni/ZnO composite: Morphology control and microwave absorption properties

“…The effective absorption (below À 10 dB) bandwidth can be tuned between 9.0 GHz and 18.0 GHz by adjusting thickness in 1.5 À 2.5 mm, and while the frequency for RL exceeding À 20 dB is located at 11.1-16.2 GHz with thickness of 1.8-2.2 mm. Compared with previously reported Ni-based composites [9,13,[35][36][37][38], the SA possesses the characteristics of strong absorption, wideband and thin thickness, which make it as a promising absorber in the microwave range. For the SA, the excellent microwave absorption properties were attributed to the good impedance, high dielectric loss, magnetic loss and unique core-shell structures, which can lead to the interference of multi-reflected microwaves [39].…”

Synthesis, characterization and microwave absorption of carbon-coated Cu nanocapsules

“…In the view of the complexity of EM absorption, the theoretical results agree reasonably well with the experimental results in both the curve pattern and absolute values. The slight discrepancy between the simulated results and experimental ones can be caused by several factors, such as error in fabrication of specimens and measurement of permittivity and reflection loss 32 .…”