Abstract
Iron-based soft magnetic composites with different contents of parylene were prepared by chemical vapor deposition (CVD), though this method, the edges and spikes can be coated with parylene. The morphology and magnetic properties of the materials are investigated. The self-lubricating parylene forms a thin and uniform insulating layer on the surface of iron particles, which reduces the magnetic loss of soft magnetic composite materials. The 4% parylene coated iron powder has high compression density, low hysteresis loss, excellent insulation performance, high resistivity and low eddy current loss. Compared with silicone resin and epoxy resin, the insulating layer formed by prylene has fewer holes and gaps, and the magnetic core loss is smaller.
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