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Experimental assessment of coercivity microstructural parameters of a Nd-Fe-B sintered magnet
IEEE Magnetics Letters ( IF 1.1 ) Pub Date : 2020-01-01 , DOI: 10.1109/lmag.2020.3029745
Elio Alberto Perigo , Rubens Nunes Faria

We examined the microstructural parameter$\ \alpha $ in order to investigate the influence of its components on the intrinsic coercivity of an isotropic Nd-Fe-B sintered magnet. By applying boundary conditions for the assessment of grain (mis)alignment ${\alpha _\psi }$ and exchange coupling ${\alpha _{exc}}$ and combining with magnetic measurements and structural characterization results obtained by magnetic small angle neutron scattering, the parameter ${\alpha _{K}}$—associated with the reduction of the magnetocrystalline field—plays a major role on the reduction of coercivity of the case study. Approaches in determining 〈${\alpha _{K}}$〉 are also discussed.

中文翻译:

Nd-Fe-B烧结磁体矫顽力显微结构参数的实验评估

我们检查了微观结构参数$\ \alpha $为了研究其成分对各向同性 Nd-Fe-B 烧结磁体的内禀矫顽力的影响。通过应用边界条件来评估晶粒(错)对齐${\alpha _\psi }$ 和交换耦合 ${\alpha _{exc}}$ 并结合磁性小角中子散射获得的磁性测量和结构表征结果,参数 ${\alpha _{K}}$- 与磁晶场的减少有关 - 在案例研究的矫顽力降低方面起着重要作用。确定方法<${\alpha _{K}}$〉也进行了讨论。
更新日期:2020-01-01
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