Fig. 4From: Fabrication of NiO/NiCo2O4 Mixtures as Excellent Microwave AbsorbersFrequency dependences of ε′ (a) and ε″ (b) of the mixtures with different calcining temperature. Dielectric loss factor (c) and impedance matching rate (d) of the samples by synthesized at different temperatures for frequency curvesBack to article page