Influence of Laser Processing and Magnetically Active Inorganic Coatings on the Dynamic Magnetic Properties of Soft-Magnetic Materials

摘要

We have studied the influence of magnetically active inorganic coatings and local laser processing on grain-oriented steels (Fe—3% Si) and amorphous alloys (Fe_(78)Ni|Si_9B_(12) (2NSR), Fe_(81)Si_7B_(12), and Fe_(81)Si_4B_(13)C_2). The potentialities of different types of laser processing have been assessed. Local laser processing and coating parameters have been shown to have a significant effect on the domain structure and electromagnetic properties of the materials. A reduction in coercive force and magnetic loss by 20-28% has been demonstrated.