2018 Fiscal Year Final Research Report
Fabrication of flexible permanent magnet by aggregate formation of iron-filled carbon nanotubes
Project/Area Number |
16K04899
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Nanomaterials engineering
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Research Institution | Mie University |
Principal Investigator |
Sato Hideki 三重大学, 工学研究科, 准教授 (40324545)
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Research Collaborator |
FUJIWARA Yuji
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Keywords | 鉄内包カーボンナノチューブ / 永久磁石 / 集合体形成 / 化学気相成長法 / 高保磁力 |
Outline of Final Research Achievements |
Iron-filled carbon nanotubes (Fe@CNTs) show excellent magnetic properties such as high coercivity. It is expected that formation of bulk comprising the Fe@CNTs enables creation of a flexible and lightweight permanent magnet, which realize enhancement of performance and low power consumption of various electrical equipments such as motors. This study focused on the following two points to realize the fabrication of the Fe@CNT bulk magnet: (i) to synthesize the Fe@CNTs with higher magnetic property, (ii) to develop the method for fabrication of Fe@CNT bulk material. We confirmed that the coercivity of Fe@CNTs can be enhanced by using oxidized nickel catalyst film. In addition, we developed the novel method for the efficient formation of filaments that comprise aligned Fe@CNTs using gas discharge breakdown. The results of this study indicate that the formation of the formation of bulk comprising Fe@CNT with high coercivity is possible.
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Free Research Field |
ナノ材料工学
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Academic Significance and Societal Importance of the Research Achievements |
鉄内包カーボンナノチューブ(Fe@CNT)は優れた磁気特性を有しており,このFe@CNTでバルク集合体を作製できれば,軽量で柔軟性を有する,従来にない特徴を有する永久磁石を作製することが可能となり,様々な電気機器の高性能化に貢献することができる。しかしながら,Fe@CNTを集積化してバルクを作製することは従来不可能であった。本研究成果は,このFe@CNTのバルク作製が可能であることを初めて示したものであり,Fe@CNTによる高性能永久磁石実現の端緒を開くものである。
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