Effect of Powder Particle Surface Treatment on DC Magnetic Properties of Compacted Iron Cores

IF 1.1 4区物理与天体物理 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Magnetics Letters Pub Date : 2024-08-26 DOI:10.1109/LMAG.2024.3450334

Martin Tkáč;Peter Kollár;Robert Maciaszek;Samuel Dobák;Ján Füzer;Denisa Olekšáková;Radovan Bureš;Mária Fáberová

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引用次数: 0

Abstract

Soft magnetic iron finds practical use in many applications, such as electromagnets and relays. In order for these devices to work effectively, it is necessary to know their dc magnetic properties. Soft magnetic compacted powder cores possess lower permeability than powder particles from which they were prepared, due to the inner demagnetization factor caused by the existence of pores in the core structure. The aim of the work was to determine the effect of surface mechanical treatment of iron powder particles of two different size fractions, leading either to an increase in the demagnetization factor or to a positive effect on the dc magnetic properties of the resulting compacted cores. For samples prepared from smaller powder particles, we found, that despite the increase in inner demagnetization factor as a result of the smoothing procedure, the differential relative permeability increased, and total energy loss decreased.

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粉末颗粒表面处理对压制铁芯直流磁性能的影响

软磁铁在许多应用中都有实际用途，例如电磁铁和继电器。为了使这些设备有效工作，有必要了解它们的直流磁性能。软磁压制粉芯的磁导率低于制备它们的粉末颗粒，这是由于粉芯结构中存在孔隙而导致的内部退磁因素。这项工作的目的是确定对两种不同尺寸的铁粉颗粒进行表面机械处理的效果，这种处理要么会导致退磁因子的增加，要么会对由此产生的压制磁芯的直流磁性能产生积极影响。对于用较小的粉末颗粒制备的样品，我们发现，尽管平滑程序导致内部退磁因子增加，但差分相对磁导率增加，总能量损失减少。

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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来源期刊

IEEE Magnetics Letters PHYSICS, APPLIED-

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics. IEEE Magnetics Letters publishes short, scholarly articles of substantial current interest. IEEE Magnetics Letters is a hybrid Open Access (OA) journal. For a fee, authors have the option making their articles freely available to all, including non-subscribers. OA articles are identified as Open Access.