Structural, Thermal, and Electrical Properties of Lithium Substituted Zinc, and Niobo Vanadate Glasses and their Nickel Ferrite Doped  Properties of Lithium Substituted Zinc, and Niobo Vanadate Glasses and their Nickel Ferrite Doped  Counterparts  a diSSertation in    Solid State PhySicS

Getachew, Belay

dc.contributor.author	Getachew, Belay
dc.date.accessioned	2021-08-07T08:29:48Z
dc.date.available	2021-08-07T08:29:48Z
dc.date.issued	2021-08-07
dc.identifier.uri	http://ir.bdu.edu.et/handle/123456789/12319
dc.description.abstract	This study aimed to find, build and contribute a sustainable economic battery material. The researcher investigated the effect of replacing a glass former that is either of the same size or larger than the main glass former by a smaller modifier ion on thermal, structural, and electrical properties. The starting materials were mixed proportionally and synthesized using the melt quenching technique. Basic characterizations (XRD, DSC, and IR) and impedance measurements were used to analyze different properties. The same properties mentioned above have been studied taking into account the effect of doping nickel ferrite into the glasses. NF was prepared in the laboratory using the Sol-Gel combustion method. The results of XRD and DSC of the glasses confirmed the amorphous (glass) nature of the samples and glass transition temperatures, respectively. The results of XRD of NF showed sharp peaks that indicate crystalline nature. The SEM results of NF showed uniform and spherical structural morphology. The results of IR spectra identified the local structure. Thermal properties (glass transition temperatures, thermal stabilities), physical/structural properties (density, packing density, the concentration of atoms, separation between atoms, stretching force constant, and local structure, and electrical properties (Cole-Cole plots, AC and DC conductivity, and relaxation analysis) were carried out. NF doped glasses are more packed, have high glass transition temperatures and thermal stability. The similar size of co-glass former with glass former has more vanadium, less oxygen concentration than the larger sized of co-glass former. The separation between atoms and the molecular band is high for a larger-sized glass former. The separation between atoms and molecular bands is high for large-sized glass former. As a general, 20 mol% Li 2 O of glasses have shown better thermal stability. Doping nickel ferrite enhanced thermal stability without the adverse effect of electrical conductivity.	en_US
dc.language.iso	en_US	en_US
dc.subject	Physics	en_US
dc.title	Structural, Thermal, and Electrical Properties of Lithium Substituted Zinc, and Niobo Vanadate Glasses and their Nickel Ferrite Doped Properties of Lithium Substituted Zinc, and Niobo Vanadate Glasses and their Nickel Ferrite Doped Counterparts a diSSertation in Solid State PhySicS	en_US
dc.type	Thesis	en_US