Magnetic Properties of Strontium Ferrite Prepared Using Submicron-Sized SrFe12-xAlxO19 Powders

V. P. Menushenkov; V. S. Shubakov; S. V. Ketov

doi:10.1002/9781118365038.ch33

Magnetic Properties of Strontium Ferrite Prepared Using Submicron-Sized SrFe_12-xAl_xO₁₉ Powders

V. P. Menushenkov, V. S. Shubakov, S. V. Ketov

Research output: Chapter in Book/Report/Conference proceeding › Chapter

1 Citation (Scopus)

Abstract

The glass samples were obtained by melting of the oxides mixture SrO-Fe₂O₃-B₂O₃-(Al₂O₃) at 1200-1250°C with subsequent quenching of the melt on quickly rotating steel roller. Submicronsized Sr(Fe,Al)₁₂O₁₉ particles were formed in glass-ceramic matrix during the crystallization aging of glass. The aging temperature T_ag varied in the range 650-950°C. The submicron-sized hexaferrite powder was obtained by removing of the matrix phases using etching. The samples were characterized by X-ray diffraction, scanning electron microscopy and magnetization measurements. The glass-ceramic material exhibits very high coercivity value up to 10 kOe. The samples of magnets were obtained by pressing of the hexaferrite powder at RT and subsequent aging in the range 900-1200°C. The aged samples exhibit coercivity value up to 8 kOe.

Original language	English
Title of host publication	Energy Technology 2012
Subtitle of host publication	Carbon Dioxide Management and Other Technologies
Publisher	John Wiley and Sons
Pages	275-279
Number of pages	5
ISBN (Print)	9781118291382
DOIs	https://doi.org/10.1002/9781118365038.ch33
Publication status	Published - 2012 May 15

Keywords

Coercive force
Glass-ceramics
Nanocrystalline structure
Sr-ferrite

ASJC Scopus subject areas

Materials Science(all)

Access to Document

10.1002/9781118365038.ch33

Cite this

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title = "Magnetic Properties of Strontium Ferrite Prepared Using Submicron-Sized SrFe12-xAlxO19 Powders",

abstract = "The glass samples were obtained by melting of the oxides mixture SrO-Fe2O3-B2O3-(Al2O3) at 1200-1250°C with subsequent quenching of the melt on quickly rotating steel roller. Submicronsized Sr(Fe,Al)12O19 particles were formed in glass-ceramic matrix during the crystallization aging of glass. The aging temperature Tag varied in the range 650-950°C. The submicron-sized hexaferrite powder was obtained by removing of the matrix phases using etching. The samples were characterized by X-ray diffraction, scanning electron microscopy and magnetization measurements. The glass-ceramic material exhibits very high coercivity value up to 10 kOe. The samples of magnets were obtained by pressing of the hexaferrite powder at RT and subsequent aging in the range 900-1200°C. The aged samples exhibit coercivity value up to 8 kOe.",

keywords = "Coercive force, Glass-ceramics, Nanocrystalline structure, Sr-ferrite",

author = "Menushenkov, {V. P.} and Shubakov, {V. S.} and Ketov, {S. V.}",

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T1 - Magnetic Properties of Strontium Ferrite Prepared Using Submicron-Sized SrFe12-xAlxO19 Powders

AU - Menushenkov, V. P.

AU - Shubakov, V. S.

AU - Ketov, S. V.

PY - 2012/5/15

Y1 - 2012/5/15

N2 - The glass samples were obtained by melting of the oxides mixture SrO-Fe2O3-B2O3-(Al2O3) at 1200-1250°C with subsequent quenching of the melt on quickly rotating steel roller. Submicronsized Sr(Fe,Al)12O19 particles were formed in glass-ceramic matrix during the crystallization aging of glass. The aging temperature Tag varied in the range 650-950°C. The submicron-sized hexaferrite powder was obtained by removing of the matrix phases using etching. The samples were characterized by X-ray diffraction, scanning electron microscopy and magnetization measurements. The glass-ceramic material exhibits very high coercivity value up to 10 kOe. The samples of magnets were obtained by pressing of the hexaferrite powder at RT and subsequent aging in the range 900-1200°C. The aged samples exhibit coercivity value up to 8 kOe.

AB - The glass samples were obtained by melting of the oxides mixture SrO-Fe2O3-B2O3-(Al2O3) at 1200-1250°C with subsequent quenching of the melt on quickly rotating steel roller. Submicronsized Sr(Fe,Al)12O19 particles were formed in glass-ceramic matrix during the crystallization aging of glass. The aging temperature Tag varied in the range 650-950°C. The submicron-sized hexaferrite powder was obtained by removing of the matrix phases using etching. The samples were characterized by X-ray diffraction, scanning electron microscopy and magnetization measurements. The glass-ceramic material exhibits very high coercivity value up to 10 kOe. The samples of magnets were obtained by pressing of the hexaferrite powder at RT and subsequent aging in the range 900-1200°C. The aged samples exhibit coercivity value up to 8 kOe.

KW - Coercive force

KW - Glass-ceramics

KW - Nanocrystalline structure

KW - Sr-ferrite

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