Abstract
The X-ray diffraction analysis and magnetometry methods were used to investigate the phase composition and magnetic properties of rapidly quenched Nd9Fe74B12Ti4C alloys. The rapidly quenched alloys were prepared by the spinning of the melt of a specified composition using a centrifuge technique with the use of electric current passing through an injected stream during quenching. The rapidly quenched alloys in the form of flakes (plane fragments of a metal ribbon) were subjected to short-term annealing in the temperature range between 550–1000°C. It was found that the alloy prepared with passage of an electric current contains a larger amount of amorphous phase than that prepared without passage of an electric current. This fact is reflected in the difference between the processes of their devitrification during short-term annealing. The anisotropy of hysteresis properties of flakes annealed at 720°C was discovered along and in the plane perpendicular to the planes of flakes (of a “fanlike” texture) during their magnetizing.
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Hadjipanayis, G.C., Nanophase hard magnets, J. Magn. Magn. Mater., 1999, vol. 200, pp. 373–391.
Kantor, B., Bystrozakalennye metally (Quickly Tempered Metals), Moscow: Metallurgiya, 1983.
Croat, J.J., Herbst, J.F., Lee, R.W., and Pinkerton, F.E., Pr-Fe and Nd-Fe-based materials-A new class of high-performance permanent magnets, J. Appl. Phys., 1984, vol. 55, pp. 2078–2082.
Andreev, S.V., Kudrevatykh, N.V., Kozlov, A.I., Bogatkin, A.N., Markin, P.E., Milyaev, O.A., and Bartashevich, M.I., Way of nanocrystalline alloy formation, RF patent 2348485, 2009.
Nagahama, D., Ohkubo, T., Miyoshi, T., Hirosawa, S., and Hono, K., Effect of Ti and C additions on the microstructure and magnetic properties of Nd6Pr1Fe80B13 melt-spun ribbons, Acta Mater., 2006, vol. 54, p. 4871–4879.
Branagan, D.J. and McCallum, R.W., The effects of Ti, C, and TiC on the crystallization of amorphous Nd2Fe14B, J. Alloys Compd., 1996, vol. 245, pp. 15–19.
Pushkarsky, V.I., Kudrevatykh, N.V., Pamyatnykh, L.A., and Andreev, S.V., A centrifugal method for rapidly quenched rare-earth alloys preparation and realization apparatus, Proc. 9th Int. Conf. on Rapidly Quenched Metast. Mater., Bratislava, 1996. p. 92.
Kudrevatykh, N.V., Andreev, S.V., Bogatkin, A.N., Bogdanov, S.G., Kozlov, A.I., Markin, P.E., Milyaev, O.A., Pirogov, A.N., Pushin, V.G., and Teplykh, A.E., Structural state and magnetic properties of Nd2Fe14B-type rapidly quenched alloys, Proc. 13th Conf. on Liquid and Amorphous Metals, Ekaterinburg, 2008, pp. 550–558.
Hirosawa, S., Matsuura, Y., Yamamoto, H., Fujimura, S., Sagawa, M., and Yamauchi, H., Magnetization and magnetic anisotropy of R2Fe14B measured on singlecrystals, J. Appl. Phys., 1986, vol. 59, pp. 873–879.
Shoemaker, C.B., Shoemaker, D.P., and Fruchart, R., The structure of a new magnetic phase related to the sigma phase-iron neodymium boride Nd2Fe14B, Acta Crystallogr., Sect. C: Cryst. Struct. Commun., 1984, vol. 40, pp. 1665–1668.
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Original Russian Text © S.V. Andreev, A.I. Kozlov, D.S. Neznakhin, P.E. Markin, A.S. Volegov, N.V. Kudrevatykh, 2013, published in Perspektivnye Materialy, 2013, No. 9, pp. 5–13.
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Andreev, S.V., Kozlov, A.I., Neznakhin, D.S. et al. Structure and magnetic properties of Nd9Fe74B12Ti4C rapidly quenched alloys prepared by melt electrospinning using centrifuge technique. Inorg. Mater. Appl. Res. 5, 95–101 (2014). https://doi.org/10.1134/S207511331402004X
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DOI: https://doi.org/10.1134/S207511331402004X