Abstract
We studied the effect of surface modification and particle size on the oxidation and corrosion behavior of neodymium–iron–boron (Nd–Fe–B) magnetic alloy powders by using thermal analysis to accelerate efforts to develop useful poly(phenylene sulfide) bonded Nd–Fe–B magnets. The results indicate that coating the Nd–Fe–B powders with a coupling agent provides the required oxidation and corrosion resistance for the targeted processing conditions. The coated rare earth powders are thermally and environmentally stable at elevated temperatures and in a 100% humid environment, where commercial rare earth alloy magnets are not usable. The coating treatment more significantly affects the small particle powders. A mechanism accounting for the improved thermal and environmental stability is presented and discussed. Magnetic measurements were performed to verify the thermal analysis results.
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.
