Abstract
Magnetic hardening has been examined in the commercial Sm(Co, Fe, Cu, Zr)7.22 permanent magnet by correlating the magnetic properties with the microstructure of the sample. The shape of the initial magnetization curve and magnetic domain observations indicate that there is more than one magnetic hardening process involved in this magnet. This is consistent with microstructure studies which show the existence of nonmagnetic Cu-rich precipitates and 1:5 phase lamellae distributed in a 2:17 rhombohedral matrix. The presence of the lower Tc 1:5 ferromagnetic phase in the higher Tc 2:17 phase is responsible for the peak observed in the M(T) curve around 870 K and in the change of slope in the Hc(T) curve around 800 K.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.