Amorphous-crystalline state transformation induced by annealing in R2Fe14B (R = Nd, Er) compounds / Chukalkin Yu. 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/EISSN:

0925-8388 / 1873-4669

Type:

Article

Abstract:

Magnetization and neutron diffraction measurements have been carried out to study evolution of structure and magnetic states of amorphous Nd2Fe14B 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 alpha-Fe phase content in alloys and a recrystallization into Nd2Fe14B-type phase. Neutron diffraction data show that the reaystallization occurs over narrow temperature interval (590-638) K in Er2Fe14B and at around 800 K in Nd2Fe14B. Magnetic measurements testify that in both samples the magnetization and coercive field increase with annealing temperature above 800 K. (C) 2014 Elsevier B.V. All rights reserved.

Author keywords:

Permanent magnets; Amorphous state; Neutron powder diffraction; Isothermal annealing MAGNETIC-PROPERTIES; ALLOYS; NANOCOMPOSITES; AMORPHIZATION; IRRADIATION

DOI:

10.1016/j.jallcom.2014.06.105

Web of Science ID:

ISI:000342245700011

Соавторы в МНС:

Другие поля

Поле	Значение
Month	DEC 5
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
EISSN	1873-4669
Keywords-Plus	MAGNETIC-PROPERTIES; ALLOYS; NANOCOMPOSITES; AMORPHIZATION; IRRADIATION
Research-Areas	Chemistry; Materials Science; Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy \& Metallurgical Engineering
Author-Email	andreev@fzu.cz
ResearcherID-Numbers	Pirogov, Alexander/K-8115-2013 Yurii, Chukalkin/J-7670-2013 Andreev, Alexander/B-6057-2011
ORCID-Numbers	Pirogov, Alexander/0000-0001-7321-1245 Yurii, Chukalkin/0000-0001-5200-479X Choo, Keenam/0000-0001-7818-264X
Funding-Acknowledgement	RAS {[}01.2.006 13394]; MSE RF {[}12-02-12065-OFI\_M, 2585]; UD of RAS {[}12-T-2-1006]; National Research Foundation of Korea - Korea government {[}NRF-2013M2A8A1035822, 2012R1A1A4A01014953]; Czech Science Foundation {[}P204/12/0150]
Funding-Text	The work was done within RAS Program (Project No 01.2.006 13394) and partially supported by projects No. 12-02-12065-OFI\_M, No. 2585 from MSE RF, Program of UD of RAS ``Physics of new materials and structures{''} of UD of RAS, project No. 12-T-2-1006, National Research Foundation of Korea grant funded by the Korea government NRF-2013M2A8A1035822, Grant No. 2012R1A1A4A01014953. A.V.A. thanks support from the Czech Science Foundation (Grant P204/12/0150).
Number-of-Cited-References	12
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	22
Journal-ISO	J. Alloy. Compd.
Doc-Delivery-Number	AP7GL