Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9837286 | Physica B: Condensed Matter | 2005 | 5 Pages |
Abstract
This paper reports the influence of Co2+ substitution on the structural parameters and DC resistivity of Li-Mn-Ni ferrites. Samples having the compositional formula Li0.45âx/2Ni0.1Mn0.1CoxFe2.35âx/2O4, with x ranging from 0 to 0.01 in steps of 0.002, were prepared by the conventional ceramic technique. X-ray diffraction has confirmed the single-phase spinel structure of the samples. The lattice parameter and theoretical density of the samples were determined and the latter compared with the experimental density measured by Archimedes Principle. Porosity was found to decrease with substitution. The temperature dependence of DC resistivity shows the semiconducting nature. The resistivity and activation energies increase with the increase of substitution level.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Mamata Maisnam, Sumitra Phanjoubam, H.N.K. Sarma, Chandra Prakash, L. Radhapiyari Devi, O.P. Thakur,