| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Outline of Final Research Achievements |
Polycrystalline powder samples of Al-substituted (Ba, Sr)- Co system Y-type hexaferrite and Sr-Co system Z-type hexaferrite were prepared by the polymerizable complex method from two different raw materials of iron: iron chloride and iron nitrate. Morphology of prepared hexaferrites were observed with scanning electron microscope. The shape of powder prepared from iron chloride is plate-like with high aspect ratio suitable for crystallographic orientation by mechanical powder pressing. Moreover, polycrystalline powder samples of Zn-substituted Z-type hexaferrite were prepared by the polymerizable complex method. Their Mössbauer spectra were taken at room temperature with conventional constant-acceleration spectrometer. Obtained Mössbauer spectra were numerically separated into six distinguishable components. The relationship between Mössbauer parameters and magnetic properties has been discussed.
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