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FESEM images of (a) T/SiO2 precursor and (b) Fe2Ni2N/SiO2 nanocomposite obtained after calcinating in flowing ammonia gas at 500 °C for 4 h.
XRD patterns of Fe2Ni2N/SiO2 composites obtained at various calcination temperatures: (a) 0 °C, (b) 400 °C, (c) 500 °C, (d) 550 °C, and (e) 700 °C (calcination time 4 h).
(a) Magnetization curve of Fe2Ni2N/SiO2 nanocomposite measured at 300 K (the inside plot is the low field part that clearly shows the absence of remanence and coercivity) and (b) FC and ZFC magnetization for Fe2Ni2N/SiO2 nanocomposite (H = 100 Oe).
The relative complex permittivity (a) and relative complex permeability (b) of Fe2Ni2N/SiO2 nanocomposites dispersed in paraffin as a function of frequency.
The dielectric loss and magnetic loss of Fe2Ni2N/SiO2 nanocomposite dispersed in paraffin as a function of frequency.
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