2020 Fiscal Year Final Research Report
Development of high-performance anisotropic nanocomposite magnets using nanowires
| Project/Area Number |
19K15300
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 26030:Composite materials and interfaces-related
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| Research Institution | Nagasaki University |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2021-03-31
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| Keywords | 磁気的性質 / 電解析出 / 規則不規則変態 / ナノワイヤー |
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| Outline of Final Research Achievements |
Since metal nanowires have a shape with a high aspect ratio, they are expected to be applied as magnetic materials. In this study, we established the conditions for producing Fe-Pd alloy nanowires with a diameter smaller than 200 nm reported so far by the electrolytic precipitation method. We also found electrolytic precipitation conditions that can realize an equiatomic ratio composition in which the Fe-Pd alloy exhibits high crystalline magnetic anisotropy with good reproducibility. Furthermore, we found that adding boron is effective in increasing the magnetism of Fe-Pd alloys.
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| Free Research Field |
材料工学，複合材料，金属物性
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では，規則不規則変態を示し，規則相で硬磁性が発現するFe-Pd合金の磁気的性質をナノワイヤー化による形状磁気異方性の付与およびホウ素添加により向上させることができた．本研究成果により，金属ナノワイヤーの磁性材料としての新たな応用展開を切り拓くことができた．また，磁性材料の製造方法として，水溶液からの電解析出法の有効性を示すことができた．
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