Article | REF: D2122 V1

Crystalline soft-magnetic materials

Author: Thierry WAECKERLÉ

Publication date: November 10, 2011, Review date: January 30, 2015 | Lire en français

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    ABSTRACT

    In a number of electro-technical applications, the essential feature is the conversion of the highest possible power in an often reduced volume, whether it is the workings of a watch, a power distribution transformer or a power plant turbine generator. Every designer, when faced with choosing a material solution that best satisfies the electromagnetic application, is faced with a real compromise. The choice involves the understanding of the phenomena affecting soft-magnetic materials. This article presents the requirements of the different families of application with the current soft-magnetic materials solutions, crystalline or not, that can respond to expected needs.

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    AUTHOR

    • Thierry WAECKERLÉ: Metallurgy engineer ENSEEG (INP Grenoble) - Doctorate in Electrical Engineering - Expert in metallurgy and magnetic materials for the ArcelorMittal group - R Manager for magnetic alloys at ArcelorMittal Stainless and Nickel Alloys at the Imphy Research Centre

     INTRODUCTION

    Crystalline soft magnetic materials" are the subject of four dossiers [D 2 121] [D 2 122], [D 2 123] and [D 2 124] .

    The previous [D 2 121] dossier introduced the basics of magnetism and metallurgy applied to crystalline ferromagnetic metallic materials, necessary for understanding the various phenomena affecting these materials in their electrotechnical applications.

    The aim of this dossier [D 2 122] is to confront the requirements of one or other major application family with the current soft magnetic material solutions (crystalline or non-crystalline) that can satisfy them. This dossier is thus an exercise in the art of compromise that any "designer" often has to make when choosing a material solution that best satisfies the electromagnetic application under study.

    The following files [D 2 123] and [D 2 124] review the families of soft crystalline materials.

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