Synthesis and characterization of pristine and cr co ni zn and sr doped nano barium ferrites

Abstract

newlineBarium ferrite in a strong magnetic material and it is used as newlinepermanent magnetic materials In 1950s Philips researcher developed this newlinemagnetic material The main inherent in manufacturing the magnetic newlinematerials is due to the large magnetizationhigh coercivity good frequency newlineresponse tremendous chemical stability corrosion resistance and low cost newlineParticle size morphology and magnetic properties of barium ferrite depend newlineupon the preparation technique and conditions of using precursor In recent newlineyears nano sized particles are found to have improved magnetic properties newlinecompared to the bulk counterpart newlineIn general microwave absorbing materials produced in nano size is found to newlineshow outstanding absorbing performance These types of materials are used in newlineelectromagnet shielding biosensor devices motors disk drivers magnetic newlinetapes magnetic recorder and speakers Further this type of ferrite magnetic newlinematerials has good machining property which allows the material to be newlinemolded in many shapes and sizes Modern development has focused on the newlineapplication of barium ferrite as a strongest storage device The magnetic newlinematerial has also prepared against the various environmental challenging of newlinemoisture and decomposition Several research groups are involved in the newlineinvestigations of barium ferrite due to their potential applications in magnetic newlinedevices microwave technology and high density magnetic recording media newlineetc newline