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Erschienen in:
18.10.2016
Electromagnetic properties of Co substituted Ni–Cd ferrite thick films on inorganic substrate by auto combustion technique
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 2/2017
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Abstract
The present paper reports the structural and 8–18 GHz microwave properties of Ni0.4CoxCd0.6−xFe2O4 (x = 0.0, 0.2, 0.4, 0.6) screen printed thick films. The prepared samples were stepwise characterized for TG–DTA, XRD, SEM and for microwave properties. The TG–DTA reveals the phase formation temperature was obtained at 800 °C. The X-ray diffraction pattern shows the nanocrystalline cubic spinel structure whereas SEM shows the grain size of 300 nm with little agglomeration. The microwave transmittance and absorption shows dispersive behavior in both X and Ku bands. The composition x = 0.2 shows much larger and broad band absorbance than that of other composition. The dielectric constant and dielectric loss of ferrite thick films decreases with increase in cobalt content as well as increase in frequency.