Abstract
A substituted barium ferrite of the M-type, BaFe/sub 10.48/Co/sub 0.76/Ti/sub 0.76/O/sub 19/ a modified W-type (about 1 W+0.3 S, where S is referred to as a spinel block), BaFe/sub 15.80/Co/sub 1.82/Ti/sub 0.5/Zn/sub 0.78/O/sub 28.3/, and a mixed type, BaFe/sub 12.6/Co/sub 0.7/Ti/sub 0.7/Ni/sub 0.36/Zn/sub 0.64/O/sub 23/ (about 0.5 M+0.5 W) were prepared using the coprecipitation salt catalysis technique. The structure of the samples was examined by X-ray diffraction and high-resolution electron microscopy. Magnetic measurements and Mossbauer spectra show that the sample of the modified W-type has the largest specific magnetization 70.2 emu/g and smallest coercivity, 660 Oe. Modified W-type barium ferrite has magnetic properties superior to the M-type; this improved material can be successfully made by increasing the number of S-blocks in the unit cell and by substituting Zn/sup 2+/ and Co/sup 2+/ ions for Fe/sup 2+/ at the tetrahedral f/sub IV/ site.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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.
