2results about How to "High magnetization" patented technology

This disclosure provides a rare-earth magnet with improved magnetization compared to previous methods, and a method for manufacturing the same. The disclosure relates to a method for manufacturing a magnetic magnet and a rare-earth magnet obtained by this method. The method includes: preparing a mixture containing a specified magnetic powder and a modifying material powder; mixing the magnetic powder and the modifying material powder to obtain a mixed powder; compressing the mixed powder in a magnetic field to obtain a magnetically shaped body; and sintering the magnetically shaped body under pressure to obtain a sintered body. The magnetic powder comprises a first particle group and a second particle group, where d1μm represents the particle size distribution D of the first particle group. 50 And let d2μm represent the particle size distribution D of the second particle swarm. 50 The d1 and d2 satisfy the relationship 0.350≤d2 / d1≤0.500, and the ratio of the total volume of the first particle group to the total volume of the second particle group is in the range of 9:1 to 4:1.

Provided is an Sm-Fe-N-based magnet comprising: first crystal grains containing samarium, iron, and nitrogen and containing 9 at% or more and less than 13 at% of samarium, and second crystal grains containing 13 at% or more of samarium; in the distribution of the average distance between adjacent particles of the second crystal grains, the average distance between adjacent particles having a cumulative frequency of 50% is 7 [mu] m or less, and the average distance between adjacent particles having a cumulative frequency of 90% is 12 [mu] m or less.