Abstract
Structure and magnetic properties of amorphous melt-spun NdFeAl and subsequently crystallized ribbons were investigated. An amorphous phase was formed after quenching by melt spinning with a copper wheel surface speed of 30 m/s. This amorphous phase exhibited hard magnetic behavior at low temperatures with a Curie temperature of 110 K and a coercivity of 1526 kA/m at 4.2 K. A hexagonal phase with the lattice parameters a=5.5111 Å and c=8.7448 Å was formed in the NdFeAl ribbon after annealing above the crystallization temperature. The magnetic entropy change was calculated directly from isothermal magnetic measurements. The results showed that the amorphous sample had a relatively high magnetocaloric effect, indicating that the amorphous alloy can be considered as a candidate for magnetic refrigeration applications.
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.
