Synergistic regulation mechanism and effects of sol-gel and phosphoric acid passivation composite insulation coatings on FeSiBC amorphous soft magnetic composites

Key Points

• Coatings significantly enhance the magnetic properties of FeSiBC composites, with optimal results observed.
• Enhanced microstructure is achieved through the synergistic application of sol-gel and phosphoric acid, improving insulation.
• Assessment of composite coatings demonstrates reduced losses in magnetic performance during operation and application.
• Optimized coating methods support better efficiency, potentially enabling wider applications in electrical devices.