Magnetic granulometry, frequency-dependent susceptibility and magnetic states of particles of magnetite ore from the Kovdor deposit

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Magnetic granulometry, frequency-dependent susceptibility and magnetic states of particles of magnetite ore from the Kovdor deposit. / Kharitonskii, Petr; Bobrov, Nikita ; Gareev, Kamil ; Kosterov, Andrei; Nikitin, Andrey; Ralin, Andrey; Sergienko, Elena; Testov, Oleg; Ustinov, Alexander; Zolotov, Nikita.

In: Journal of Magnetism and Magnetic Materials, Vol. 553, 169279, 01.07.2022, p. 169279.

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

BibTeX

@article{391e2bab70834e57b5973afd9e94aabb,

title = "Magnetic granulometry, frequency-dependent susceptibility and magnetic states of particles of magnetite ore from the Kovdor deposit",

abstract = "Structural, frequency and magnetic properties of magnetite ores from the Kovdor deposit, Northwest Russia, have been investigated. Scanning electron microscopy, X-ray energy dispersion microanalysis, X-ray diffraction, and Curie temperature measurements all point to non-stoichiometric magnetite as a major (ca 48 wt%) magnetic constituent of the ore. Magnetic granulometry of the samples has been analyzed using the model of interacting ferrimagnetic particles. The results of determining superparamagnetic particles on the basis of theoretical modeling are in good agreement with the experimental data obtained using the frequency-dependent susceptibility and granulometry methods. It is shown that even relatively minor concentrations of superparamagnetic grains modify the electromagnetic response of the samples, and can be detected in their impulse transient characteristics.",

keywords = "Frequency-dependent susceptibility, Magnetic granulometry, Magnetic states, Magnetite ore, Magnetostatic interaction, Superparamagnetic particles",

author = "Petr Kharitonskii and Nikita Bobrov and Kamil Gareev and Andrei Kosterov and Andrey Nikitin and Andrey Ralin and Elena Sergienko and Oleg Testov and Alexander Ustinov and Nikita Zolotov",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = jul,

day = "1",

doi = "10.1016/j.jmmm.2022.169279",

language = "English",

volume = "553",

pages = "169279",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Magnetic granulometry, frequency-dependent susceptibility and magnetic states of particles of magnetite ore from the Kovdor deposit

AU - Kharitonskii, Petr

AU - Bobrov, Nikita

AU - Gareev, Kamil

AU - Kosterov, Andrei

AU - Nikitin, Andrey

AU - Ralin, Andrey

AU - Sergienko, Elena

AU - Testov, Oleg

AU - Ustinov, Alexander

AU - Zolotov, Nikita

PY - 2022/7/1

Y1 - 2022/7/1

N2 - Structural, frequency and magnetic properties of magnetite ores from the Kovdor deposit, Northwest Russia, have been investigated. Scanning electron microscopy, X-ray energy dispersion microanalysis, X-ray diffraction, and Curie temperature measurements all point to non-stoichiometric magnetite as a major (ca 48 wt%) magnetic constituent of the ore. Magnetic granulometry of the samples has been analyzed using the model of interacting ferrimagnetic particles. The results of determining superparamagnetic particles on the basis of theoretical modeling are in good agreement with the experimental data obtained using the frequency-dependent susceptibility and granulometry methods. It is shown that even relatively minor concentrations of superparamagnetic grains modify the electromagnetic response of the samples, and can be detected in their impulse transient characteristics.

AB - Structural, frequency and magnetic properties of magnetite ores from the Kovdor deposit, Northwest Russia, have been investigated. Scanning electron microscopy, X-ray energy dispersion microanalysis, X-ray diffraction, and Curie temperature measurements all point to non-stoichiometric magnetite as a major (ca 48 wt%) magnetic constituent of the ore. Magnetic granulometry of the samples has been analyzed using the model of interacting ferrimagnetic particles. The results of determining superparamagnetic particles on the basis of theoretical modeling are in good agreement with the experimental data obtained using the frequency-dependent susceptibility and granulometry methods. It is shown that even relatively minor concentrations of superparamagnetic grains modify the electromagnetic response of the samples, and can be detected in their impulse transient characteristics.

KW - Frequency-dependent susceptibility

KW - Magnetic granulometry

KW - Magnetic states

KW - Magnetite ore

KW - Magnetostatic interaction

KW - Superparamagnetic particles

UR - http://www.scopus.com/inward/record.url?scp=85126618291&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2022.169279

DO - 10.1016/j.jmmm.2022.169279

M3 - Article

VL - 553

SP - 169279

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

M1 - 169279

ER -

ID: 93717339