Abstract
We report effect of influence of Cd2+ ions on Co-Ni ferrites synthesized by the solid state reaction method. The X-ray diffraction analysis confirmed the cubic spinel phase with crystallite size varies between 20-24 nm. The SEM images show tetrahedral, octahedral, granular, long bulgy structures with variety of sizes. The Raman spectra for samples with x = 0.1 and x = 0.4 shown peaks corresponding to Alg, Eg and T2g which very closely match with NiFe2O4 spectra with slight variation in peak position as an effect of different chemical formula. Magnetic measurements were carried out at room temperature. It is found that substitution influenced the magnetic properties. Saturation magnetization decreased from 52.74 to 32.68 emu.gm-1 and coercivity shown an initial increase and then a continuous decrease, with increase in the Cd2+ substitution. Retentivity is found to be varying between 10.1 emu/gr - 6.21 emu/gr.
Highlights
The ferrites have been studied extensively because of their technological applications
In this work we synthesized the cadmium substituted Co-Ni ferrites synthesized by solid state reaction method and the structural and magnetic properties were studied using X-ray diffraction (XRD), FTIR, Scanning electron microscope (SEM), Raman and Vibrating sample magnetometer (VSM) analysis
Structural characterization of the ferrite powders is carried out; the X-ray diffraction patterns of the samples have been obtained on Bruker AXS D8 Advance Diffractometer (XRD), the FTIR of the samples have been obtained on Thermo Nicolet, Avatar 370 and the SEM images of the samples have been obtained on JEOL Model JSM - 6390LV, RAMAN spectra of the samples is taken from Horiba Jobin Vyon, Model Lab Ram HR and VSM of samples is obtained from Lakeshore, Model:7410 series
Summary
The ferrites have been studied extensively because of their technological applications. Ni-Zn ferrites is important class spinel magnetic material due to the simple and stable fabrication process, mechanical hardness, chemical/thermal stability, high resistivity, and high Curie temperature. These ferrites are always the focus for technology and research purposes. Cobalt and nickel ferrite materials are a subject of research, extensively due to important magnetic properties like, high coercivity, good remnant magnetization, moderate saturation magnetization and magnetic anisotropy. They exhibit high electrical resistivity very good thermal and chemical stability [12,13]. In this work we synthesized the cadmium substituted Co-Ni ferrites synthesized by solid state reaction method and the structural and magnetic properties were studied using XRD, FTIR, SEM, Raman and VSM analysis
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
