Hydrogenation effect on the hysteresis properties of rapidly quenched Nd-Ho-Fe-Co-B alloys / Tereshina I.,Kudrevatykh N.,Tereshina E.,Burkhanov G.,Chistyakov O.,Grechishkin R.,Salamova A.,Verbetsky V. // JOURNAL OF ALLOYS AND COMPOUNDS. - 2011. - V. 509, l. 2. - P. S835-S838.

ISSN/EISSN:

0925-8388 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The hydrogenation effect on the hysteresis properties of rapidly quenched (RQ) (Nd(0.55)Ho(0.45))(2.7) (Fe(0.8)Co(0.2))(14)B(1.2) compound obtained by melt-spinning is studied. A comparative study of RQ alloy and its hydride (Nd(0.55)Ho(0.45))(2.7)(Fe(0.8)Co(0.2))(14)B(1.2)H(2.5) has shown that hydrogenation resulted in the increase of magnetization without significant effect on the Curie temperature. In contrast to hydrogen-free alloy having a maximum on the H(c)(T) curve, the H(c) of the hydrogen-charged compound increased monotonously with decreasing temperature. Among the factors affecting H(c) in hydrogenated sample are the increase of the grain size of the crystalline phase and the decrease of both the iron and the rare earth contributions to the magnetocrystalline anisotropy. High-field hysteretic distortions of the magnetization/demagnetization curves of RQ and RQ + hydrogen samples are observed at 4.2 K in fields up to 90 kOe indicating the existence of a magnetic phase with very high local coercivity. (C) 2010 Elsevier B.V. All rights reserved.

Author keywords:

Rare earth-iron compounds; Hydrogenation; Coercive field; Magnetic hysteresis MAGNETIC-PROPERTIES; ABSORPTION

DOI:

10.1016/j.jallcom.2010.11.081

Web of Science ID:

ISI:000295695500072

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP
Note	12th International Symposium on Metal-Hydrogen Systems, Fundamentals and Applications (MH2010), Moscow, RUSSIA, JUL 19-23, 2010
Organization	Lomonosov Moscow State Univ
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
Keywords-Plus	MAGNETIC-PROPERTIES; ABSORPTION
Research-Areas	Chemistry; Materials Science; Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy \& Metallurgical Engineering
Author-Email	teresh@imet.ac.ru
ResearcherID-Numbers	GRECHISHKIN, Rostislav/E-5029-2010 Tereshina, Evgeniya/G-7327-2011
ORCID-Numbers	GRECHISHKIN, Rostislav/0000-0001-7566-124X
Number-of-Cited-References	15
Usage-Count-Since-2013	4
Journal-ISO	J. Alloy. Compd.
Doc-Delivery-Number	830YK