|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Advanced Magnetic Materials: An FMD Symposium in Honor of Michael E. McHenry
||Microstructural Effects of Thermomagnetic Treatments in Sintered Nd-Fe-B Magnets
||Catherine Smith, Michael Kaufman, John Speer, Michael McGuire
|On-Site Speaker (Planned)
Optimizing the microstructure of sintered Nd-Fe-B type magnets has become increasingly important. Sintered magnets are key components to the growing industry of alternative energy, particularly wind turbines and electric car generators. With rising costs and limited supply of rare earth elements, special attention has been dedicated to improving coercivity of these magnets through processing rather than compositional modifications. It has been shown that annealing sintered magnets in a magnetic field can enhance coercivity when compared to conventional post-sinter annealing in the absence of a magnetic field. However, little is known about the microstructural changes that occur in sintered magnets as a result of these thermo-magnetic treatments. The present work explores differences in microstructure of Dy-free and Dy-containing sintered magnets that have undergone annealing in a magnetic field of 9T. Coercivity mechanisms are discussed in relation to microstructural findings.
||Planned: None Selected