Top Nd-Fe-B magnets: >55 MGOe energy density, 9.7 kOe coercivity

Rodewald, W.,Wall, B.,Katter, M.,Uestuener, K.

Amsterdam, The Netherlands（2002）

引用 0|浏览3

暂无评分

摘要

Sintered Nd-Fe-B magnets are prepared by powder metallurgy. Besides the composition of the alloy, the alignment of the powder particles is decisive for achieving high remanent polarizations. The alignment of the powder particles can be improved by applying field pulses in addition to an alignment in a constant magnetic field. Alternating field pulses parallel and antiparallel to the easy axis proved to be more efficient than unidirectional field pulses. By such a refined processing route sintered Nd-Fe-B magnets with a remanent polarization of 1.519 T, a coercivity HcJ of 7.8 kA/cm (9.8 kOe) and a maximum energy density of 451 kJ/m³ (56.7 MGOe) could be prepared.

查看译文

关键词

boron alloys,coercive force,iron alloys,magnetic permeability,neodymium alloys,permanent magnets,sintering,texture,nd/sub 2/fe/sub 14/b,alloy composition,coercivity,hard magnetic properties,maximum energy density,refined processing route,remanent polarization,reversible permeability,temperature measurement,magnetic properties,indexing terms

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要