Magnetic properties of strontium ferrite prepared using submicron-sized SrFe 12-xAl xO 19 powders

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

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The glass samples were obtained by melting of the oxides mixture SrO-Fe 2O 3-B 2O 3-(Al 2O 3) at 1200-1250°C with subsequent quenching of the melt on quickly rotating steel roller. Submicron-sized Sr(Fe,Al) 12O 19 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 languageEnglish
    Title of host publicationEnergy Technology 2012
    Subtitle of host publicationCarbon Dioxide Management and Other Technologies - Held During the TMS 2012 Annual Meeting and Exhibition
    Pages275-279
    Number of pages5
    Publication statusPublished - 2012 May 15
    EventEnergy Technology 2012: Carbon Dioxide Management and Other Technologies - TMS 2012 Annual Meeting and Exhibition - Orlando, FL, United States
    Duration: 2012 Mar 112012 Mar 15

    Publication series

    NameTMS Annual Meeting

    Other

    OtherEnergy Technology 2012: Carbon Dioxide Management and Other Technologies - TMS 2012 Annual Meeting and Exhibition
    CountryUnited States
    CityOrlando, FL
    Period12/3/1112/3/15

    Keywords

    • Coercive force
    • Glass-ceramics
    • Nanocrystalline structure
    • Sr-ferrite

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys

    Fingerprint Dive into the research topics of 'Magnetic properties of strontium ferrite prepared using submicron-sized SrFe <sub>12-x</sub>Al <sub>x</sub>O <sub>19</sub> powders'. Together they form a unique fingerprint.

    Cite this