Structure, magnetic and microwave properties of FeNi invar nanoparticles obtained by electrical explosion of wire in different preparation conditions / Kurlyandskaya G. V.,Bhagat S. M.,Bagazeev A. V.,Medvedev A. I.,Ballesteros A.,Beketov I. V.,Safronov A. P. // JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS. - 2016. - V. 98, l. . - P. 255-262.

ISSN/EISSN:

0022-3697 / 1879-2553

Type:

Article

Abstract:

Magnetic nanoparticles (MNPs) of close to invar (Fe0.635Ni0365) composition were prepared by the electrical explosion of wire using different conditions to insure different values of overheating rates. X-ray diffraction, transmission electron microscopy, low temperature nitrogen adsorption, magnetic and microwave measurements were used for the characterization of MNPs. Increase of the energy injected into the wire led to increase of the specific surface (S-sp) of the produced MNPs from 4.6 to 13.5 m(2)/g. The fabricated MNPs were spherical and weakly aggregated with the average weighted diameter in the range of 54-160 nm depending on the S-sp. The phase composition of FeNi MNPs consists of two solid solutions of Ni in alpha-phase and gamma-phase lattices. The increase of the energy injected into the wire leads to increase of the a phase from 5 to 10 wa as the injected energy raised from 0.8 to 2.5 times the sublimation energies of the wire material. Comparative analysis of structure magnetic and microwave properties showed that the obtained MNPs are important magnetic materials with high saturation magnetization and significant zero field microwave absorption which can be expected to lead to important technological applications. (C) 2016 Elsevier Ltd. All rights reserved.

Author keywords:

Electrical explosion of wire; Nanoparticles; Magnetic properties; Invar FERROMAGNETIC-RESONANCE; NI; ALLOYS; FILMS; SURFACE

DOI:

10.1016/j.jpcs.2016.06.015

Web of Science ID:

ISI:000383297100033

Соавторы в МНС:

Другие поля

Поле	Значение
Month	NOV
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
EISSN	1879-2553
Keywords-Plus	FERROMAGNETIC-RESONANCE; NI; ALLOYS; FILMS; SURFACE
Research-Areas	Chemistry; Physics
Web-of-Science-Categories	Chemistry, Multidisciplinary; Physics, Condensed Matter
Author-Email	galina@we.lc.ehu.es bhagat@physics.umd.edu igor.beketov@mail.ru
ResearcherID-Numbers	Bagazeev, Aleksey/H-6011-2017
ORCID-Numbers	Bagazeev, Aleksey/0000-0002-9112-5954 Kurlyandskaya, Galina/0000-0002-3712-1637
Funding-Acknowledgement	RF project {[}0389-2014-0002]; Ministry of Education and Science of the Russian Federation {[}1362]; GV Actimat project
Funding-Text	This work was supported in part by the RF project No 0389-2014-0002 and the Ministry of Education and Science of the Russian Federation, project No 1362 and GV Actimat project. Selected measurements were performed at SGIker services of UPV-EHU and at the Center of Common Services of URFU. We thank Dr. A. Murzakaev, Dr.I. Orue and Dr. A. Larranaga for special support.
Number-of-Cited-References	28
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	26
Journal-ISO	J. Phys. Chem. Solids
Doc-Delivery-Number	DV9YC