Magnetic anisotropy of nanocrystalline Sm-Fe-N magnets produced by heterogeneous diffusion.

• Autorzy: Pawlik P. , Wysłocki J. J. , Przybył A. , Kaszuwara W. , Leonowicz M.
• Konferencja: XV Physical Metallurgy and Materials Science Conference on Advanced Materials & Technologies AMT'98, Kraków-Krynica, Poland, 17-21 May, 1998
• Języki publikacji: EN

Abstrakty

EN

The Sm2Fe17Nx magnets were produced using heterogeneous diffusion and gas nitrogenation of 25% Sm-75% Fe mixture of powders. On decreasing the grain size to 0.97 micrometers the anisotropy constants K1 and K2 increase to 1.4 MJ/ cubic metres and 0.93 MJ/ cubic metres, respectively. Angular dependence of the coercivity can be understood as intermediate between the nucleation model and curling mechanism. On the basis of the domain structure observations, intrinsic magnetic properties were calculated. R

Słowa kluczowe

EN

magnetic anisotropy; crystalline magnets; heterogeneous diffusion; magnetic properties; coercivity; samarium; iron; powder

PL

anizotropia magnetyczna; magnes krystaliczny; dyfuzja wielofazowa; własności magnetyczne; koercyjność; samar; żelazo; proszek

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 4
• Strony: 823--826
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Pawlik P.

• Institute of Physics, Technical University of Częstochowa, Poland

autor

Wysłocki J. J.

• Institute of Physics, Technical University of Częstochowa, Poland

autor

Przybył A.

• Institute of Physics, Technical University of Częstochowa, Poland

autor

Kaszuwara W.

• Department of Materials Science and Engineering, Warsaw University of Technology, Poland

autor

Leonowicz M.

• Department of Materials Science and Engineering, Warsaw University of Technology, Poland

• Technical University of Częstochowa, Institute of Physics

Bibliografia

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• [3] E. C. Stoner and E. P. Wohlfarth, Phil. Trans. Roy. Soc. (London) 240 (1948) 599.
• [4] A. R. Corradi, S. J. Andress, J. E. French, G. Bottoni, D. Candolfo, A. Ceccechett and F. Masoli, IEEE Trans. Magn. MAG-20 (1984) 33.
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• [6] R. Bodenberger and A. Hubert, Phys. Stat. Sol. (a), 44 (1977) K7.
• [7] Jifan Hu, T. Dragon, M.-L. Sartorelli and H. Kronmüller, Phys. Stat. Sol. (a), 136 (1993) 207.
• [8] H. Trauble, O. Boser, H. Kronmüller and A. Seeger, Phys. Stat. Sol., 10 (1965) 283.