Abstract
Currently, electric motors and generators use high‐energy permanent magnets based on RE2Fe14B phases (RE: rare earth) with high amounts of RE often including heavy‐RE metals (Dy, Tb), the most critical group of the raw materials. REFe12 alloys are seen as potential alternatives to RE2Fe14B because they contain a significantly lower amount of RE metals with similar or better values of remanent magnetization (MR) and high magnetocrystalline anisotropy, which can give rise to a large energy product (BH)max. Herein, the effect of heat treatments on the coercivity and magnetic properties on melt‐spun ribbons of SmFe12−xMox (x = 0.5, 1) alloys with wheel speeds of 15 and 35 m s−1 is studied. The maximum coercivity after heat treatments is obtained in as‐spun ribbons at a speed of 35 m s−1. For the x = 0.5 ribbons, μ0Hc increases from 0.06 to 0.36 T, while for the x = 1.0 ones μ0Hc is enhanced from 0.02 to 0.34 T. The highest values of saturation magnetization are obtained for the x = 0.5 ribbons (≈145 Am2 kg−1).
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.
