Radiothermal synthesis of fine barium ferrite powders and their properties

Ольховик, Л. П.; Borisova, N. M.; Kamzin, A. S.; Fisenko, O.G.

doi:10.1016/0304-8853(95)00593-5

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…In the last few years nanocrystalline magnetic materials have proven to develop exciting magnetic behaviours that are attractive for a wide range of applications. Alternative routes of production to the ceramic method, such as chemical coprecipitation, crystallization of glass, radiothermal synthesis and the sol-gel method among others, have emerged as suitable methods for the production of nanocrystalline BaFe 12 O 19 hexaferrite BaM powders with a narrow grain size distribution, single-domain behaviour and perfect crystal structure [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Structural transformation with milling on sol-gel precursor for BaM hexaferrite

Estévez-Rams¹,

García²,

Reguera³

et al. 2000

J. Phys. D: Appl. Phys.

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The structural modification upon milling in an intermediate step precursor of the sol-gel method for BaFe12O19 hexaferrite BaM production is discussed. The milling of the precursor diminishes the powder particle size, leads to a more homogeneous matrix and induces a solid-state transformation, from γ-Fe2O3 to α-Fe2O3. The induced modifications of the precursors change the magnetic and structural properties of the final BaM hexaferrite compared to the BaM obtained from the non-milled precursor.

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Section: Introductionmentioning

confidence: 99%

Structural transformation with milling on sol-gel precursor for BaM hexaferrite

Estévez-Rams¹,

García²,

Reguera³

et al. 2000

J. Phys. D: Appl. Phys.

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“…cubic, a¼0.835 nm [24]), a-Fe 2 O 3 (S.G. R3 ¯c, sys. rhombohedral, a¼0.5038 nm, c¼1.3772 nm [25]), SrCO 3 (S.G. R3 ¯m, sys. rhombohedral, a¼0.5092 nm, c¼0.9530 nm [26]) and SrFeO 2 .…”

Section: Resultsmentioning

confidence: 99%

Evidence of existence of metastable SrFe12O19 nanoparticles

García

Bilovol

Socolovsky

et al. 2011

Journal of Magnetism and Magnetic Materials

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“…The fluxing agents 7BaCl2.3B2O3 and γ-Fe2O3, BaCO3, CoCO3, TiO2, have been used to generate BaCoTiM [60]. Pure ferrite was generated at a lower temperature and with a grain size one third that of under 100 nm when the melt-flux was heated radio thermally by an electron beam instead of conventional thermal heating [61].…”

Section: Molten Salt Methodsmentioning

confidence: 99%

Hexagonal Ferrites, Synthesis, Properties and Their Applications

Dhiman

2021

Materials Research Foundations

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We intend to report on possible fabrication routes for all types of hexagonal ferrites which are known for their wide area of use and applications. Hexagonal ferrites have now become an intense topic of research as they are the part of most of magnetic recording and data storage applications globally. Hexagonal or popularly known as ‘Heaxa-ferrites’ are known for their utilization in permanent magnets and their utilization in electrical devices being operated at high frequencies especially at GHz frequencies. We have presented in this chapter all main six types of hexagonal ferrites i.e. M Type, Z-Type, Y-type, W-type, X-Type and U-type hexa-ferrites. Hexaferrites belong to ferromagnetic class of magnetic materials and their properties are purely dependent on intrinsic structure of ferrites. In this chapter, we aim to discuss more on M-type of hexa-ferrites, their properties and their applications. Also, recent advances on M-type ferrites are also a part of this chapter.

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Radiothermal synthesis of fine barium ferrite powders and their properties

Cited by 5 publications

References 2 publications

Structural transformation with milling on sol-gel precursor for BaM hexaferrite

Structural transformation with milling on sol-gel precursor for BaM hexaferrite

Evidence of existence of metastable SrFe12O19 nanoparticles

Hexagonal Ferrites, Synthesis, Properties and Their Applications

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