Fe-based soft magnetic composites with high permeability and low core loss by in situ coating ZnFe2O4 layer
Source abstract
Abstract
Fe powder particles were coated with ZnFe2O4 layer by in situ oxidation and then mixed with epoxy-modified silicone resin. Soft magnetic composites were prepared by compaction and annealing treatment of the coated powders. The coating layer was analyzed using Lorentz transmission electron microscopy, scanning electron microscopy and energy-dispersive spectroscopy X-ray analysis. Their magnetic properties were determined using a vibrating sample magnetometer and an auto-testing system for magnetic materials (SY8258B-H/m). The results show that the samples prepared at 1200 MPa and 550 °C exhibited distinguished magnetic properties, with low core loss of 497 W/Kg (100 kHz, 50 mT) and high amplitude permeability of 63 whose frequency stability is up to 170 kHz. The Fe SMCs with excellent soft magnetic properties provide great potential for application of various fields such as transformers, sensors and electromagnetic actuation devices.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Magnetic properties of thin films · Metallic Glasses and Amorphous Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
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