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纳米晶Nd-Fe-B永磁材料退磁曲线的微磁学研究(图)
纳米晶 Nd-Fe-B永磁材料 退磁曲线 微磁学
2009/2/2
计算的退磁曲线,尤其是矫顽力iHc,随外磁场方向变化。随着模型磁体中晶粒数N=n3的增加,iHc的变化幅度和其平均值减少。因此外推到N->OO的iHc以及相应的退磁曲线才是正确的结果。前人用较少的晶粒数、沿任意磁场方向计算的退磁曲线,只有定性意义。比如Fischer、Scchrefl、Kronmuller、Fidler研究集体对正分成分Nd2Fe14B磁体的的计算虽然能够定性地说明iHc 与晶粒大...
Hard magnetic materials Nd-Fe-B/Fe with epoxy resin matrix
Composites Mechanical properties Magnetic materials
2010/2/9
Purpose: The purpose of the paper is to present the technological solution of obtaining hard magnetic composite materials based on Nd-Fe-B with addition of iron powder and bounded by epoxy resin.Desig...