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Magnetism of Fe-doped Al2O3 and TiO2 layers formed on aluminum and titanium by plasma-electrolytic oxidation. / Rudnev, V. S.; Kharitonskii, P. V.; Kosterov, A.; Sergienko, E. S.; Shevchenko, E. V.; Lukiyanchuk, I. V.; Adigamova, M. V.; Morozova, V. P.; Tkachenko, I. A.

In: Journal of Alloys and Compounds, Vol. 816, 152579, 05.03.2020.

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

Harvard

Rudnev, VS, Kharitonskii, PV, Kosterov, A, Sergienko, ES, Shevchenko, EV, Lukiyanchuk, IV, Adigamova, MV, Morozova, VP & Tkachenko, IA 2020, 'Magnetism of Fe-doped Al2O3 and TiO2 layers formed on aluminum and titanium by plasma-electrolytic oxidation', Journal of Alloys and Compounds, vol. 816, 152579. https://doi.org/10.1016/j.jallcom.2019.152579

APA

Rudnev, V. S., Kharitonskii, P. V., Kosterov, A., Sergienko, E. S., Shevchenko, E. V., Lukiyanchuk, I. V., Adigamova, M. V., Morozova, V. P., & Tkachenko, I. A. (2020). Magnetism of Fe-doped Al2O3 and TiO2 layers formed on aluminum and titanium by plasma-electrolytic oxidation. Journal of Alloys and Compounds, 816, [152579]. https://doi.org/10.1016/j.jallcom.2019.152579

Vancouver

Rudnev VS, Kharitonskii PV, Kosterov A, Sergienko ES, Shevchenko EV, Lukiyanchuk IV et al. Magnetism of Fe-doped Al2O3 and TiO2 layers formed on aluminum and titanium by plasma-electrolytic oxidation. Journal of Alloys and Compounds. 2020 Mar 5;816. 152579. https://doi.org/10.1016/j.jallcom.2019.152579

Author

Rudnev, V. S. ; Kharitonskii, P. V. ; Kosterov, A. ; Sergienko, E. S. ; Shevchenko, E. V. ; Lukiyanchuk, I. V. ; Adigamova, M. V. ; Morozova, V. P. ; Tkachenko, I. A. / Magnetism of Fe-doped Al2O3 and TiO2 layers formed on aluminum and titanium by plasma-electrolytic oxidation. In: Journal of Alloys and Compounds. 2020 ; Vol. 816.

BibTeX

@article{d66c503ed3b14d8498b7c718eb677fb3,
title = "Magnetism of Fe-doped Al2O3 and TiO2 layers formed on aluminum and titanium by plasma-electrolytic oxidation",
abstract = "A comprehensive study of the magnetic behavior, morphology, and composition of Fe-containing oxide coatings on aluminum and titanium has been carried out to investigate the origin of their ferromagnetism. The coatings have been formed by the plasma electrolytic oxidation (PEO) technique in slurry electrolytes containing colloidal particles of iron(III) hydroxides. On the surface of coatings on Al, iron is distributed unevenly concentrating in defective areas with a large number of small pores, and near large pores. On the surface of coatings on Ti, iron and titanium are distributed in antiphase in areas of comparable size. Within the pores, iron concentration appears about 5–10 times higher and oxygen concentration 3–4 times lower than their average concentration over the surface. In both cases, localization of the areas with ferromagnetic properties follows the peculiarities of iron distribution on the surface. The magnetic fraction in the coatings on aluminum appears to be represented by iron-aluminum spinel Fe3-xAlxO4 with x > 0.06, likely cation-deficient. Elemental iron and traces of iron hydroxides are also possibly present. In the coatings on titanium, titanomagnetite (Fe3-xTixO4, where x ∼ 0.2–0.3) or its oxidized analogue, titanomaghemite, appear to be present, and possibly also some Fe–Ti alloy particles.",
keywords = "Fe-containing oxide coatings, Magnetic measurements, Morphology and composition, Origin of ferromagnetism, Plasma electrolytic oxidation, ROCK, PARTICLE, CONTAINING OXIDE COATINGS",
author = "Rudnev, {V. S.} and Kharitonskii, {P. V.} and A. Kosterov and Sergienko, {E. S.} and Shevchenko, {E. V.} and Lukiyanchuk, {I. V.} and Adigamova, {M. V.} and Morozova, {V. P.} and Tkachenko, {I. A.}",
year = "2020",
month = mar,
day = "5",
doi = "10.1016/j.jallcom.2019.152579",
language = "English",
volume = "816",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Magnetism of Fe-doped Al2O3 and TiO2 layers formed on aluminum and titanium by plasma-electrolytic oxidation

AU - Rudnev, V. S.

AU - Kharitonskii, P. V.

AU - Kosterov, A.

AU - Sergienko, E. S.

AU - Shevchenko, E. V.

AU - Lukiyanchuk, I. V.

AU - Adigamova, M. V.

AU - Morozova, V. P.

AU - Tkachenko, I. A.

PY - 2020/3/5

Y1 - 2020/3/5

N2 - A comprehensive study of the magnetic behavior, morphology, and composition of Fe-containing oxide coatings on aluminum and titanium has been carried out to investigate the origin of their ferromagnetism. The coatings have been formed by the plasma electrolytic oxidation (PEO) technique in slurry electrolytes containing colloidal particles of iron(III) hydroxides. On the surface of coatings on Al, iron is distributed unevenly concentrating in defective areas with a large number of small pores, and near large pores. On the surface of coatings on Ti, iron and titanium are distributed in antiphase in areas of comparable size. Within the pores, iron concentration appears about 5–10 times higher and oxygen concentration 3–4 times lower than their average concentration over the surface. In both cases, localization of the areas with ferromagnetic properties follows the peculiarities of iron distribution on the surface. The magnetic fraction in the coatings on aluminum appears to be represented by iron-aluminum spinel Fe3-xAlxO4 with x > 0.06, likely cation-deficient. Elemental iron and traces of iron hydroxides are also possibly present. In the coatings on titanium, titanomagnetite (Fe3-xTixO4, where x ∼ 0.2–0.3) or its oxidized analogue, titanomaghemite, appear to be present, and possibly also some Fe–Ti alloy particles.

AB - A comprehensive study of the magnetic behavior, morphology, and composition of Fe-containing oxide coatings on aluminum and titanium has been carried out to investigate the origin of their ferromagnetism. The coatings have been formed by the plasma electrolytic oxidation (PEO) technique in slurry electrolytes containing colloidal particles of iron(III) hydroxides. On the surface of coatings on Al, iron is distributed unevenly concentrating in defective areas with a large number of small pores, and near large pores. On the surface of coatings on Ti, iron and titanium are distributed in antiphase in areas of comparable size. Within the pores, iron concentration appears about 5–10 times higher and oxygen concentration 3–4 times lower than their average concentration over the surface. In both cases, localization of the areas with ferromagnetic properties follows the peculiarities of iron distribution on the surface. The magnetic fraction in the coatings on aluminum appears to be represented by iron-aluminum spinel Fe3-xAlxO4 with x > 0.06, likely cation-deficient. Elemental iron and traces of iron hydroxides are also possibly present. In the coatings on titanium, titanomagnetite (Fe3-xTixO4, where x ∼ 0.2–0.3) or its oxidized analogue, titanomaghemite, appear to be present, and possibly also some Fe–Ti alloy particles.

KW - Fe-containing oxide coatings

KW - Magnetic measurements

KW - Morphology and composition

KW - Origin of ferromagnetism

KW - Plasma electrolytic oxidation

KW - ROCK

KW - PARTICLE

KW - CONTAINING OXIDE COATINGS

UR - http://www.scopus.com/inward/record.url?scp=85073928850&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/91f2d70a-7002-3377-b6da-5297a5c77b21/

U2 - 10.1016/j.jallcom.2019.152579

DO - 10.1016/j.jallcom.2019.152579

M3 - Article

AN - SCOPUS:85073928850

VL - 816

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

M1 - 152579

ER -

ID: 48498673