Abstract
MnAl ribbons have been successfully nanostructured by applying cold-rolling. The use of this mechanical process deforms the as-spun ribbons and increases the density of defects in the material. The microstructural characterization of the cold-rolled samples has been performed by SEM and XRD and has allowed studying the evolution of the surface of the ribbons with the number of the passes increasing. These microstructural changes, in addition to the crystallization of β-phase during the annealing step, have successfully modified the magnetic properties of the as-spun ribbons, raising the coercivity from 1.5 to 3.5 kOe. Remarkably, this large increase in coercivity is accompanied by only an 8% decrease in remanence by comparison with that of the starting ribbons, achieving values above 35 emu/g for all the cold-rolled and annealed samples.
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.
