一体成型电感中软磁复合材料的制备技术研究进展

Research progress on preparation techniques of soft magnetic composites for integrated molded inductors

  • 摘要: 随着电感元器件向小型化、高频化和集成化方向快速发展,软磁复合材料作为一体成型电感的核心材料,其性能要求日益严格,主要体现在高磁导率、高饱和磁感应强度及低损耗特性等方面。本文综述了软磁复合材料的研究现状与进展,重点探讨了粉末选择与制备、绝缘包覆、压制压力以及退火工艺等关键参数对材料磁性能的影响规律。通过文献对比分析表明,材料微观结构的精准调控是实现高频低损耗特性的核心,而工艺参数的协同优化则可显著提升磁性能的均匀性与稳定性。本文系统梳理了从材料制备到性能优化的技术体系,指出通过优化上述工艺参数,可显著提升软磁复合材料的综合性能,为电感结构设计与软磁复合材料的研发提供了理论依据和技术参考。

     

    Abstract: The ongoing trend toward miniaturization, high-frequency operation, and integration of inductive components, has increased the demand for enhanced performance of soft magnetic composite materials used in integrated molded inductors, Key requirements include high permeability, high saturation magnetic induction, and low loss. This paper reviews recent advancements in soft magnetic composite materials, with a particular focus on analyzing the influence of powder selection and preparation, insulation coating, compaction pressure, and annealing processes on their magnetic properties. Based on a comparative analysis of existing literature, it is evident that precise control over material microstructure is essential to achieve low loss at high frequencies. Furthermore, synergistic optimization of process parameters can significantly enhance the uniformity and stability of magnetic properties. This study provides a systematic examination of the technical framework from material preparation to performance enhancement, demonstrating that optimizing these process parameters markedly improves the overall performance of soft magnetic composites. The findings offer valuable theoretical insights and technical guidance for the structural design of inductors and the development of advanced soft magnetic composite materials.

     

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