Pulse-thermal processing (PTP) based on high-density plasma arc lamp technology has been utilized to crystallize melt-spun NdFeB-based amorphous ribbons to form magnetic nanocomposites consisting of Nd 2 Fe 14 B and α-Fe phases. After applying suitable pulses, the NdFeB-based ribbons were developed with hard magnetic properties. The highest coercivity can be obtained for ribbons with a thicknes...

An analytical technique is developed for predicting the performance of a bonded Halbach oriented anisotropic magnet, with due account of partial alignment of the NdFeB powder during injection molding. The predicted performance of a 12-pole injection molded, Halbach oriented magnet is compared with measurement.

In this work we have studied several NdFeB compositionally modulated thin films by using both conversion electron Mossbauer spectra and SOUIP magnetometry. Both the hyperfine fields and the easy magnetization magnitude are not correlated with the modulation characteristic length ( A ) while the magnetization perpendicular to the thin film plane decreases as A increases.

In a surface-mounted sintered NdFeB permanent-magnet generator, the magnets are usually thin (typically 4 mm), and hence the armature reaction, due to the time harmonics in the stator currents, is high. NdFeB magnets are conducting (resistivity typically 1.6 μΩm) and experience eddy-current losses. Therefore, the combined eddy-current losses in the NdFeB magnets and a solid iron rotor may becom...

The digestion of neodymium (NdFeB) magnets was investigated in the context recycling rare earth elements (i.e., Nd, Pr, Dy, and Tb). Among more conventional techniques (microwave digestion, open vessel alkaline fusion), focused infrared (FID) tested as a possible approach to rapidly efficiently solubilize NdFeB magnets. FID parameters were initially optimized with unmagnetized magnet powder sub...