18 research outputs found

    Effects of Variations in Stoichiometry on M-Type Hexaferrites

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    Barium hexaferrite particles prepared by sol-gel technique yield best magnetic characteristics if a large barium surplus is used. Therefore, the powder sample has to be etched after the annealing process in order to get samples without intermediate phases. The used temperatures below 900°C and times shorter than 1h cause nanocrystalline hexaferrite particles with a specific saturation magnetization above 700 Acm2/g and a coercivity up to 470 kA/m

    Zwischenbericht des FAW-Projektes NAUDA

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    TIB Hannover: RO 9283(90007) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

    Guest editorial

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