Second International Conference on Materials for future  - 2011(ICMF-2011)

Venue: Government Engineering College, Trichur, Thrisur, Kerala, India.

Category: Physics Oral presentation

Date: 23/02/2011 – 25/02/2011

Title: Effect Of Co/Cu Substitution On Magnetic Properties of Small Sized Ni-Zn ferrite System

G S V R K Choudary1* P. Prameela 2 M Chaitanya Varma3, A Mahesh Kumar3, and K H Rao2
1Department of Physics, Bhavan’s Vivekananda College, BVB ,Sainikpuri, Sec’bad 500094, India
 

*Email: gsvrk.choudary@gmail.com

Keywords: Sol gel, PEG, Crystallite size, Saturation Magnetization, Initial permeability

Category: Experiment

Abstract: Cu/Co subsituted Ni-Zn ferrite system having grains of small size have been processed by sol-gel synthesis using polyethylene glycol (PEG) as the binding agent. The sample were annealed at 4000C for 1 hr. These samples were made into pellets and were .sintered at 10000C for 1 hr. Crystallite size has been measured from the FWHM of the X-ray diffraction peaks besides confirming the spinel structure. TEM pictures were also recorded to calculate the particle size.The lattice constant, saturation magnetization and initial permeability show significant varaition for all compositions varying with cobalt and copper concentrations The influence of these properties are studied in order to explore the microwave absorbing properties of Co/Cu substituted Ni-Zn ferrites.