Densification of NdFeB Magnet Powder Using the Electrically Heated Powder Rolling Method

摘要

NdFeB magnet powder rapidly quenched (MQ powder) and Fe_3B/NdFeB spring magnet powder were densified by using the electrically heated powder rolling method (EPR). Although MQ powder was uniaxially pressed under high temperature by EPR, magnetization reordering did not occur. Fe_3B/NdFeB spring magnet powder was also consolidated by EPR. The resultant spring magnet retained the amorphous state.