Fabrication and Characterization of Zn Substituted Cu-Cr Ferrites
(Sprache: Englisch)
This research project is aimed to fabricate and characterize zinc substituted copper chromium spinel ferrites of compositional scheme of ZnxCu1-x Cr0.5Fe1.5O4 (Where x=0, 0.2, 0.4, 0.6, 0.8) prepared by powder metallurgical methods using 99.99% commercially...
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This research project is aimed to fabricate and characterize zinc substituted copper chromium spinel ferrites of compositional scheme of ZnxCu1-x Cr0.5Fe1.5O4 (Where x=0, 0.2, 0.4, 0.6, 0.8) prepared by powder metallurgical methods using 99.99% commercially available ZnO, CuO, Cr2O3 and Fe2O3 as starting material. Accurately weigh powder were ball milled and calcined for 24 hours at 1100ºC. Then the calcined powders were homogenized using A-gate motor- pestle then sintered at 900oC for 10hours. Thermal, structural, morphological, elemental, magnetic, optical and dielectric properties were carried out using TGA-DTA, XRD, FESEM, EDS, VSM, FTIR and LCR meter respectively. TGA-DTA data provides the optimum temperature for the fabrication of spinel ferrites and later XRD micrographs reveal the formation of single phase spinel structure showing lattice parameters increases and x-ray and bulk density decreases as Zn content increases. FESEM shows the aggregated grain growth. FTIR spectrashow two prominent bands in the range of 400-800 cm-1 which confirm the formation of spinel ferrites. The dielectric loss tangent and dielectric constant (_) decreases as frequency increases.
Bibliographische Angaben
- Autoren: Hina Nazli , Safia Anjum
- 2015, 76 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: LAP Lambert Academic Publishing
- ISBN-10: 365980875X
- ISBN-13: 9783659808753
Sprache:
Englisch
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