Annealing-induced crystallization of the Er2Fe13.8B alloy amorphized by irradiation / Chukalkin Yu. G.,Teplykh A. E.,Kudrevatykh N. V.,Bogdanov S. G.,Choo K. N.,Lee S.,Andreev A. V.,Pirogov A. N. // PHYSICS OF METALS AND METALLOGRAPHY. - 2015. - V. 116, l. 3. - P. 242-247.

ISSN/EISSN:

0031-918X / 1555-6190

Type:

Article

Abstract:

To study the evolution of structural and magnetic states of irradiation-amorphized Er2Fe13.8B alloy during isothermal annealing at temperatures of 295-1025 K, magnetization measurements and neutron diffraction analysis have been performed. The annealing of the alloy leads to the crystallization of the Nd2Fe14B-type phase, the amount of which reaches about 84\% of the sample volume, and alpha Fe (16\%). Neutron diffraction studies have shown that the Er2Fe13.8B alloy crystallizes in a temperature range of 590-638 K. Magnetic measurements indicate the increase in the spontaneous magnetization and coercive force as the annealing temperature increases above 800 K. The magnetization of the Er sublattice in the sample annealed at 993 K is lower than that of the crystalline sample before its amorphization. However, the magnetic anisotropy of the Er sublattice is unchanged, i.e., the easy axes remain oriented in the basal plane of the tetragonal lattice.

Author keywords:

permanent magnets; amorphous state; isochronous annealing; crystallization; neutron diffraction NANOCOMPOSITE MAGNETS; FE-B; ELECTRON-IRRADIATION; ND; BEHAVIOR

DOI:

10.1134/S0031918X15010032

Web of Science ID:

ISI:000351696200004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1555-6190
Keywords-Plus	NANOCOMPOSITE MAGNETS; FE-B; ELECTRON-IRRADIATION; ND; BEHAVIOR
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	pirogov05@gmail.com
ResearcherID-Numbers	Andreev, Alexander/B-6057-2011 Pirogov, Alexander/K-8115-2013 Bogdanov, Savva/K-1613-2013
ORCID-Numbers	Pirogov, Alexander/0000-0001-7321-1245 Bogdanov, Savva/0000-0003-2327-1180 Choo, Keenam/0000-0001-7818-264X
Funding-Acknowledgement	Russian Academy of Sciences {[}01.2.006 13394]; Russian Foundation for Basic Research {[}12-02-12065-ofi\_m]; Ural Branch, Russian Academy of Sciences {[}12-T-2-1006]; government of South Korea {[}NRF-2013M2A8A1035822, 2012R1A1A4A01014953]; Scientific Foundation of Czech Republic {[}P204/12/0150]
Funding-Text	The study was performed in accordance with the Program of the Russian Academy of Sciences (project no. 01.2.006 13394) and in part was supported by the Russian Foundation for Basic Research (project no. 12-02-12065-ofi\_m, by the Ural Branch, Russian Academy of Sciences (project no. 12-T-2-1006), by the government of South Korea (program no. NRF-2013M2A8A1035822, project no. 2012R1A1A4A01014953). A.V. Andreev thanks the Scientific Foundation of Czech Republic for the support (project no. P204/12/0150).
Number-of-Cited-References	20
Usage-Count-Since-2013	6
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	CE3AM