Figure 14

Frequency dependence of attenuation constant (α) of all composites (a) and RL values, attenuation constant α, and the modulus of normalized input impedance (|Z in /Z 0|) for NiO/NiCo2O4-wax (60 wt%) composites with 1.5 mm thickness (b).

Frequency dependence of attenuation constant (α) of all composites (a) and RL values, attenuation constant α, and the modulus of normalized input impedance (|Z in /Z 0|) for NiO/NiCo2O4-wax (60 wt%) composites with 1.5 mm thickness (b).