Authors : Borikar D. M., Borikar M. A., KakdeA. S.
Page Nos : 782-789
Description :
Nanoscale materials are found to be of great importance and significance, especially in the development of specialized applications. The nanoferrites of Copper-Chromium with generic formulaCuCrxFe2-xO4(x=0,0.5) were synthesized by microwave assisted sol-gel auto combustion method. The synthesized samples are annealed at 800oC and characterized using X-ray diffractometer (XRD) and transmission electron microscope (TEM). The XRD patterns confirm the formation of single phase cubic ferrite. The value of lattice parameter ‘a’ reveals the formation of spinel ferrite. The morphological investigations were done by TEM. The TEM imaging demonstrates the formation of nanosize particles.It is also observed that these ferrites show semiconductor behavior. The electrical studies confirm the semiconducting nature of synthesized sample under the influence of high temperature. The dielectric constant was explained on the basis of Maxwell interface polarization in accordance with Koop’s phenomenological model.
