Structure, soft magnetic properties of Fe-based magnetic composites and its practical application

O. F. Demidenko, A. L. Zhaludkevich, A. O. Laryn, G. Govor, Sun Haibo, Dongchu Chen, S. Yankevich
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Abstract

A multi-stage technique for applying insulating coatings to metal powder particles has been developed in order to create a new class of Fe-based soft magnetic materials with improved characteristics. The density value calculated from the data of X-ray diffraction analysis is approximately 3 % higher than the experimentally measured values, which are 7.4–7.45 g/cm3. The low porosity of the composites is confirmed by the SEM and EDX results. The proposed method of encapsulation of iron powder with an oxide layer is a highly economical method for applying coatings of various chemical compositions to metal powders, and can be widely used in practice to obtain electrical materials. Comprehensive studies of the properties of the obtained samples of powder composite materials based on ABC100.30 iron, the particles of which are encapsulated with phosphorus oxide, have been carried out. It has been established that in a field of 1.5 T, the losses at a frequency of 1 kHz decrease 10 times with an increase in the thickness to 30 nm. The synthesized materials are recommended for use in the development of various types of high-frequency electric motors, generators, chokes, magnetic circuits and electrodes for high-frequency welding and other applications.
铁基磁性复合材料的结构、软磁特性及其实际应用
我们开发了一种在金属粉末颗粒上涂覆绝缘涂层的多阶段技术,以制造出一种具有更好特性的新型铁基软磁材料。根据 X 射线衍射分析数据计算得出的密度值比实验测量值(7.4-7.45 克/立方厘米)高出约 3%。扫描电子显微镜(SEM)和电离辐射 X 射线分析(EDX)结果证实了复合材料的低孔隙率。所提出的用氧化物层包裹铁粉的方法是一种非常经济的方法,可为金属粉末涂上各种化学成分的涂层,可广泛应用于获得电学材料。我们对基于 ABC100.30 铁(其颗粒被氧化磷包裹)的粉末复合材料样品的性能进行了全面研究。结果表明,在 1.5 T 的电场中,厚度增加到 30 nm 时,频率为 1 kHz 时的损耗降低了 10 倍。建议将合成材料用于开发各类高频电机、发电机、扼流圈、磁路和高频焊接电极及其他应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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