E. Handoko, I. Sugihartono, S. Budi, M. Randa, Z. Jalil, C. Kurniawan
We have investigated microwave absorbing properties of Nd2Fe14B/αFe nanocomposite prepared by melt spinning method. Structures, magnetic characteristics and microwave absorbing properties were characterized using XRD, PERMAGRAPH and Vector Network Analyzer (VNA), respectively. The complex permeability and permittivity, as well as reflection loss (RL) values of the Nd2Fe14B/αFe nanocomposites were calculated in the range of 8.2-12.4 GHz. Magnetic hysteresis loop of Nd2Fe14B/αFe nanocomposite with a weight ratio of 52.2% of Nd2Fe14B and 47.8% of αFe resulted the magnetic saturation (Ms) 0.8 Tesla and coercivity (Hc) 300 kA/m. The RL value of Nd2Fe14B/αFe is less than -10 dB and tends to decrease up to -20 dB at 11.5 GHz. As a consequency, it has absorbed microwave minimum 70% in 8.2 - 12.4 GHz. © Published under licence by IOP Publishing Ltd.
Department of Physics, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta, 13220, Indonesia; Department of Chemistry, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta, 13220, Indonesia; Balitbang Kementerian Pertahanan Republik Indonesia, Jakarta, Indonesia; Department of Physics, Syiah Kuala University, Banda Aceh, Indonesia; Research Center of Physics, Indonesian Institute of Sciences (LIPI), Puspitek, Tangerang, Indonesia
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