Microstructure and interphase magnetic coupling in Nd2Fe14B/alpha-Fe nanocomposites obtained by mechanical milling and short time annealing
| Autor: | Mican, Sever, Hirian, Răzvan, Diop, Leopold, Chicinaş, Ionel, Isnard, Olivier, Pop, Viorel |
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| Přispěvatelé: | Babes-Bolyai University [Cluj-Napoca] (UBB), Matériaux, Rayonnements, Structure (MRS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Universitatea Tehnica din Cluj-Napoca (UTCN), Michetti, Armelle |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Romanian Journal of Physics Romanian Journal of Physics, 2016, 61 (3-4), pp.506-517 |
| Popis: | International audience; The effects of short time annealing and soft phase pre-milling on the structural and magnetic properties of 6 h milled Nd2Fe14B/10wt% Fe magnetic nanocomposites were investigated. The X-ray diffraction peaks of Nd2Fe14B disappeared after milling due to crystal structure damage, this effect being more pronounced when using pre-milled Fe. After annealing, the characteristic peaks of Nd2Fe14B were restored with a limited growth of the α-Fe crystallites. The best exchange coupling was obtained for the samples which contain unmilled Fe as the soft phase. The maximum coercive field is 0.61 T. The samples containing pre-milled Fe have lower coercive field values, but show a higher remanence. The Nd2Fe14B/α-Fe exchange coupling is analysed. |
| Databáze: | OpenAIRE |
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