International Conference

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Author: search.filters.author.Jayaprakash R

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    PREPARATION OF COBALT-COPPER FERRITE (CO0.8CU0.2FE2O4) NANOPOWDER VIA COPRECIPITATION METHOD AND INVESTIGATION OF ITS MAGNETIC PROPERTIES
    (K.S.Rangasamy College of Technology, Tiruchengode, Namakkal, Tamilnadu, 2012-11-21) Balavijayalakshmi J; Suriya Narayanan N; Jayaprakash R
    Copper substituted Cobalt ferrite nano particles (Co0.8Cu0.2Fe2O4) are synthesized using co-precipitation method. Cobaltous Chloride [CoCl2.6H2O], Cupric Chloride [CuCl2.2H2O] and anhydrous Ferric Chloride [FeCl3] along with sodium hydroxide [NaOH] are used as the raw materials. Cobalt-Copper ferrite sample sintered at 900○C is subjected to X-ray diffraction to calculate the average nano-crystallite size using Debye – Scherrer formula. The FT-IR spectra of the samples are recorded to ensure the presence of metallic compounds. The magnetic properties of the copper doped cobalt ferrite nano particles are studied using Vibrating Sample Magnetometer (VSM). The morphological analysis of the sample is done using SEM.
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    SYNTHESIS AND CHARACTERIZATION OF NANO – CRYATALLINE CO-CU MIXED FERRITES
    (SRM University, Chennai, 2010-02-24) Balavijayalakshmi J; Suriya Narayanan N; Jayaprakash R; Gopalakrishnan V; Sanjay Kumar; Singh VN; Phani A R
    Nano-crystalline Cobalt ferrite doped with copper as an additive element Co0.8Cu0..2Fe2O4 is synthesized using co-precipitation method. Cobaltous Chloride [CoCl2.6H2O], Cupric Chloride [CuCl2.2H2O], anhydrous Ferric Chloride [FeCl3] along with sodium hydroxide [NaOH] is used as raw materials. Cobalt-Copper ferrite sample sintered at 600○C are subjected to X-ray diffraction to calculate the average nano-crystalline size using Debye – Scherrer formula. The FT-IR spectra of the sample are recorded to ensure the presence of the metallic compounds. The morphological analysis of the sample is studied using Scanning Electron Microscope (SEM).
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    SYNTHESIS AND STUDY OF MAGNETIC PROPERTIES OF NANO CRYSTALLINE ZN-CU MIXED FERRITES
    (Narosa Publishing house / PSGR Krishnammal College for Women, 2008-12-18) Balavijayalakshmi J; Jayaprakash R; Suriya Narayanan N; Marutha Senthil S; Govindaraj G; Singh VN; Phani A R
    Magnetic nanoparticles of spinel ferrites are of great interest in fundamental science, especially for addressing the fundamental relationships between magnetic properties and their crystal chemistry and structure. Spinel ferrites have been investigated in recent years for their useful electrical and magnetic properties due to the wide applications in information storage systems, magnetic bulk cores, magnetic fluids microwave absorbers and magnetic diagnostics. The synthesis, structural characterization and magnetic properties of spinel nano ferrites have been investigated with much interest. Zn-Cu mixed ferrites are prepared by co-precipitation method. Zn-Cu mixed ferrites as prepared and sintered are subjected to X-ray diffraction (XRD) using Cu Kα radiation to confirm the particle size. The consistency of Nano size of the particle is analyzed using TEM micrograph. The FT-IR spectrum of the sample is recorded at different sintering temperatures. The magnetic measurements of Zn-Cu mixed ferrites are carried out using vibrating sample magnetometer.