Amorphous-crystalline state transformation induced by annealing in R 2Fe14B (R = Nd, Er) compounds / Chukalkin Y.G., Teplykh A.E., Kudrevatykh N.V., Choo K.N., Lee S., Andreev A.V., Pirogov A.N. // Journal of Alloys and Compounds. - 2014. - V. 615, l. . - P. 75-78.

ISSN:

09258388

Type:

Article

Abstract:

Magnetization and neutron diffraction measurements have been carried out to study evolution of structure and magnetic states of amorphous Nd 2Fe14B and Er2Fe14B alloys under isothermal annealing at 295-1025 K. The amorphization have been performed by neutron irradiation which provides a homogeneous state in different with other methods of amorphization. The annealing induces a rise of α-Fe phase content in alloys and a recrystallization into Nd2Fe 14B-type phase. Neutron diffraction data show that the recrystallization occurs over narrow temperature interval (590-638) K in Er 2Fe14B and at around 800 K in Nd2Fe 14B. Magnetic measurements testify that in both samples the magnetization and coercive field increase with annealing temperature above 800 K.© 2014 Elsevier B.V. All rights reserved.

Author keywords:

Amorphous state; Isothermal annealing; Neutron powder diffraction; Permanent magnets

Index keywords:

Amorphization; Amorphous alloys; Crystalline materials; Erbium; Erbium compounds; Iron compounds; Isothermal annealing; Isotherms; Magnetization; Neutron diffraction; Neutron irradiation; Neutron powd

DOI:

10.1016/j.jallcom.2014.06.105

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904569886&doi=10.1016%2fj.jallcom.2014.06.105&partnerID=40&md5=f0405a7c7b69c93d9e4f4d8a348f4959

Соавторы в МНС:

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Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904569886&doi=10.1016%2fj.jallcom.2014.06.105&partnerID=40&md5=f0405a7c7b69c93d9e4f4d8a348f4959
Affiliations	Institute of Metal Physics of Ural Division of RAS, Ekaterinburg 620990, Russian Federation; Ural Federal University, Ekaterinburg 620083, Russian Federation; Irradiation Material Department, Korea Atomic Energy Research Institute, Daejeon 305-600, South Korea; Institute of Physics, Academy of Sciences, Na Slovance 2, 18221 Prague, Czech Republic
Author Keywords	Amorphous state; Isothermal annealing; Neutron powder diffraction; Permanent magnets
Funding Details	P204/12/0150, GACR, Czech Science Foundation
References	Burzo, E., (1998) Rep. Prog. Phys., 61, p. 1099; Sagawa, M., Fujimura, S., Yamamoto, H., Matsuura, Y., (1984) IEEE Trans. Magn., 20, p. 1584; Wu, Y.Q., Ping, D.H., Murty, B.S., Kanekiyo, H., Hirosawa, S., Hono, K., (2001) Scripta Mater., 45, p. 355; Hirosawa, S., Kanekiyo, H., Shigemoto, Y., Murakami, K., Miyoshi, T., Shioya, Y., (2002) J. Magn. Magn. Mater., 239, p. 424; Jin, Z.Q., Okumura, H., Muñoz, J.S., Zhang, Y., Wang, H.L., Hadjipanayis, G.C., (2002) J. Phys. D: Appl. Phys., 35, p. 2893; Sab, S., Bessais, L., Djéga-Mariadassou, C., Danand, N.H., Phuc, N.X., (2003) J. Phys.: Condens. Matter., 15, p. 5615; Sheng, H., Zeng, X., Zou, J., Xie, S., (2010) J. Rare Earths, 28, p. 447; Nagase, T., Nino, A., Umakoshi, Y., (2007) Mater. Sci. Eng. A, 449-451, p. 1111; Teplykh, A.E., Chukalkin, Yu.G., Lee, S., Bogdanov, S.G., Kudrevatykh, N.V., Rosenfeld, E.V., Skryabin, Yu.N., Pirogov, A.N., (2013) J. Alloys Comp., 581, pp. 423-430; Chukalkin, Yu.G., (2013) Phys. Sol. State, 55, p. 1714; Rodriguez, J.C., (1993) Physica B, 192, p. 55; Jin, Z.Q., Cui, B.Z., Liu, J.P., Ding, Y., Wang, Z.L., Thadhani, N.N., (2004) Appl. Phys. Lett., 84, p. 4382
Correspondence Address	Andreev, A.V.; Institute of Physics, Academy of Sciences, Na Slovance 2, 18221 Prague, Czech Republic; email: andreev@fzu.cz
Publisher	Elsevier Ltd
CODEN	JALCE
Language of Original Document	English
Abbreviated Source Title	J Alloys Compd
Source	Scopus