Synthesis and Characterization of Hot-Roll and Cold-Roll Byproduct-Derived Strontium Hard Ferrites
H. S. Woon, K. P. Lim, N. Puteri, R. Rozaimah and C. Y. Tan
DOI : 10.3844/ajeassp.2009.580.583
American Journal of Engineering and Applied Sciences
Volume 2, Issue 4
Problem statement: Ceramic permanent magnets or more commonly known as strontium hexagonal ferrites have been widely used in permanent magnetic materials as they provide high remanence, high coercivity, relatively high energy product and good chemical stability. In this study, we treated factory byproduct from hot-roll and cold-roll steel industry was used as raw material in synthesis of strontium hexagonal hard ferrites. Approach: X-Ray Diffraction (XRD) was employed to confirm the formation of strontium hard ferrite compound. Vibrating Sample Magnetometer (VSM) was used to analyze the magnetic properties of samples prepared. Results: The magnetic properties, namely remanence and coercivity of factory byproduct-derived strontium hard ferrites were compared. The cold-roll-derived strontium hard ferrite showed higher remanence in this study. Conclusion: This implied that cold-roll byproduct was a better candidate to replace hematite in preparation of strontium hard ferrites compared to hot-roll byproduct.
© 2009 H. S. Woon, K. P. Lim, N. Puteri, R. Rozaimah and C. Y. Tan. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.