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Article | REF: RE137 V1

Magnetically hard intermetallic insertion compounds

Author: Lotfi BESSAIS

Publication date: March 10, 2012 | Lire en français

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    AUTHOR

    • Lotfi BESSAIS: Professeur des Universités ICMPE, UMR 7182, CNRS – Université Paris 12

     INTRODUCTION

    Summary

    The intrinsic magnetic properties of rare-earth and transition metal materials are considerably enhanced by the insertion of a light element such as hydrogen, carbon or nitrogen. Extrinsic magnetic properties, meanwhile, are optimized by the development of nanomaterials, revealing new phases with high-performance characteristics.

    Abstract

    The insertion of a light element such as the hydrogen, the carbon or the nitrogen in alloys with rare earth and transition metals drastically improves the intrinsic magnetic properties of these materials. With the aim of optimizing the extrinsic magnetic properties, the elaboration of nanomaterials leads to new phases in the successful magnetic characteristics.

    Keywords

    magnetic nanomaterials, magnetic recording, permanent magnets

    Keywords

    nanomagnetic materials, recoding media, permanent magnets

    Key points

    Sector: Energy

    Degree of technology diffusion: Emergence | Growth | Maturity

    Technologies involved: permanent magnets, hybrid motors

    Applications: wind turbines, magnetic refrigeration

    Main French players :

    Centers of expertise: CNRS ICMPE laboratory and Institut Néel, ENS Cachan, Dumaïne University condensed matter laboratory

    Other global players: Toyota, Airbus

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