• comparison of direct and indirect measurements of the saturation magnetization of barium hexaferrite synthesized by coprecipitation

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 702
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     this paper compares the magnetic properties of barium hexaferrite (bam) powder synthesized by the coprecipitation method as determined by two- magnon scattering theory (microwave spectroscopy) and a direct method (vibrating-sample magnetometry). the microstructural, structural, loss, and magnetic properties were measured by x-ray diffractometry, field-emission scanning electron spectroscopy, network analysis, and vibrating-sample magnetometry, respectively. by using the two-magnon scattering theory and the reflection loss data, the saturation magnetization was calculated. the results revealed that the saturation magnetization determined by the use of the two-magnon scattering theory is about 54.75 emu/g, which closely conforms to the experimental value of 55.00 emu/g obtained using vibrating-sample magnetometry.

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