Gd2O3 nanoparticles prepared by spark discharge method: Structure and magnetocaloric properties

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Gd2O3 nanoparticles prepared by spark discharge method: Structure and magnetocaloric properties. / Kurlyandskaya, G.; Beketov, I.; Maksimov, A. et al.
In: Journal of Magnetism and Magnetic Materials, Vol. 588, No. Part A, 171408, 01.12.2023.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{a9771d2b83974ec89d9f67d0b536a7c3,

title = "Gd2O3 nanoparticles prepared by spark discharge method: Structure and magnetocaloric properties",

abstract = "Several batches of nanoparticles of gadolinium oxide Gd2O3 were obtained by the electrophysical spark discharge (ESD) method using selected variations of the value of the energy supplied to the discharge gap. The change of the charge voltage led to a change in the energy supplied to the discharge gap in the range of 3 J to 55 J. The average size of spark discharge nanoparticles in all cases was close to 8 nm in accordance with low-temperature nitrogen adsorption data. Gd2O3 nanoparticles contained two crystalline phases (cubic and monoclinic), the amount of which varied within certain limits by changing the parameters of the spark discharge. The obtained maximum values of the magnetic entropy change ΔSM of the studied ESD Gd2O3 nanoparticles with a monoclinic phase content of less than 40 wt% are not inferior to the value of ΔSM of Gd2O3 nanoparticles obtained by chemical methods. The spark discharge technique seems to be a promising technology for manufacturing of gadolinium oxide nanoparticles applications for the magnetic cooling systems of cryogenic refrigeration.",

author = "G. Kurlyandskaya and I. Beketov and A. Maksimov and A. Medvedev and A. Arkhipov and D. Neznakhin and A. Yushkov and A. Gorkovenko and E. Burban and A. Svalov",

note = "This research was funded by the Russian Science Foundation (RSF), project no. 23-29-00025, https://rscf.ru/project/23-29-00025/.",

year = "2023",

month = dec,

day = "1",

doi = "10.1016/j.jmmm.2023.171408",

language = "English",

volume = "588",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier BV",

number = "Part A",

}

RIS

TY - JOUR

T1 - Gd2O3 nanoparticles prepared by spark discharge method: Structure and magnetocaloric properties

AU - Kurlyandskaya, G.

AU - Beketov, I.

AU - Maksimov, A.

AU - Medvedev, A.

AU - Arkhipov, A.

AU - Neznakhin, D.

AU - Yushkov, A.

AU - Gorkovenko, A.

AU - Burban, E.

AU - Svalov, A.

N1 - This research was funded by the Russian Science Foundation (RSF), project no. 23-29-00025, https://rscf.ru/project/23-29-00025/.

PY - 2023/12/1

Y1 - 2023/12/1

N2 - Several batches of nanoparticles of gadolinium oxide Gd2O3 were obtained by the electrophysical spark discharge (ESD) method using selected variations of the value of the energy supplied to the discharge gap. The change of the charge voltage led to a change in the energy supplied to the discharge gap in the range of 3 J to 55 J. The average size of spark discharge nanoparticles in all cases was close to 8 nm in accordance with low-temperature nitrogen adsorption data. Gd2O3 nanoparticles contained two crystalline phases (cubic and monoclinic), the amount of which varied within certain limits by changing the parameters of the spark discharge. The obtained maximum values of the magnetic entropy change ΔSM of the studied ESD Gd2O3 nanoparticles with a monoclinic phase content of less than 40 wt% are not inferior to the value of ΔSM of Gd2O3 nanoparticles obtained by chemical methods. The spark discharge technique seems to be a promising technology for manufacturing of gadolinium oxide nanoparticles applications for the magnetic cooling systems of cryogenic refrigeration.

AB - Several batches of nanoparticles of gadolinium oxide Gd2O3 were obtained by the electrophysical spark discharge (ESD) method using selected variations of the value of the energy supplied to the discharge gap. The change of the charge voltage led to a change in the energy supplied to the discharge gap in the range of 3 J to 55 J. The average size of spark discharge nanoparticles in all cases was close to 8 nm in accordance with low-temperature nitrogen adsorption data. Gd2O3 nanoparticles contained two crystalline phases (cubic and monoclinic), the amount of which varied within certain limits by changing the parameters of the spark discharge. The obtained maximum values of the magnetic entropy change ΔSM of the studied ESD Gd2O3 nanoparticles with a monoclinic phase content of less than 40 wt% are not inferior to the value of ΔSM of Gd2O3 nanoparticles obtained by chemical methods. The spark discharge technique seems to be a promising technology for manufacturing of gadolinium oxide nanoparticles applications for the magnetic cooling systems of cryogenic refrigeration.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85174695524

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001105344700001

U2 - 10.1016/j.jmmm.2023.171408

DO - 10.1016/j.jmmm.2023.171408

M3 - Article

VL - 588

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - Part A

M1 - 171408

ER -

ID: 47877186