Effect Of Crystallization Annealing And Surface Oxidation On Electromagnetic Wave Absorption Behavior Of FeSiBNbCu Nanocrystalline Alloy

摘要

The oxidation effect of Fe73Sii6B7Nb3Cu1 nanocrystalline powder on the electromagnetic (EM) wave absorption behavior has been investigated. The oxidation did not improve the absorption characteristics of the nanocrystalline soft magnetic material. The pulverization and milling lowered the optimum crystallization temperature of the nanocrystalline material because of the accumulated internal energy due to impact during fragmentation and powder thinning.