摘要：The enhancement of microwave absorbing properties in nickel zinc ferrite (Ni 0.5 Zn 0.5 Fe 2 O 4 ) via multiwall carbon nanotubes (MWCNT) growth is studied in this research work. Ni 0.5 Zn 0.5 Fe 2 O 4 was initially synthesized by mechanical alloying followed by sintering at 1200 °C and the microstructural, electromagnetic and microwave characteristics have been scrutinized thoroughly. The sintered powder was then used as a catalyst to grow MWCNT derived from chemical vapor deposition (CVD) method. The sample was mixed with epoxy resin and a hardener for preparation of composites. The composite of multi-walled carbon nanotubes/Ni 0.5 Zn 0.5 Fe 2 O 4 shown a maximum reflection loss (RL) of -19.34 dB at the frequency and bandwidth of 8.46 GHz and 1.24 GHz for an absorber thickness of 3 mm for losses less than -10 dB. This acquired result indicates that multi-walled carbon nanotubes/Ni 0.5 Zn 0.5 Fe 2 O 4 could be used as a microwave absorber application in X-band.
