Synthesis of novel multi-ferroic ferrites and control of their magnetoelectric properties
Project/Area Number |
25420714
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Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Inorganic materials/Physical properties
|
Research Institution | University of Hyogo |
Principal Investigator |
KIKUCHI TAKEYUKI 兵庫県立大学, 工学(系)研究科(研究院), 准教授 (50316048)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
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)
|
Keywords | 機能性セラミックス / マルチフェロイクス / ヘキサフェライト / 機能性セラミックス材料 |
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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Report
(4 results)
Research Products
(15 results)