2011 Fiscal Year Final Research Report
Improvement of critical current density for MgB2 superconducting wire due to carbon encapsulation and Mg ductility
| Project/Area Number |
23860050
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Nihon University |
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Principal Investigator |
MAEDA Minoru 日本大学, 理工学部, 助手 (80610584)
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| Research Collaborator |
JUNG Ho kim ISEM University, of Wollongong, ARC研究員
HEO Yoon-uk Pohang University of Science Technology, 助教授
NAKAYAMA Yoshitake 日本大学, 理工学部, 大学院生
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| Project Period (FY) |
2011
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| Keywords | 超伝導材料・素子 / 二硼化マグネシウム / 超伝導線 / 臨界電流密度 / 格子欠陥炭素、MRI / 炭素 / MRI |
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| Research Abstract |
In this study, we have explored and attempted to establish an effective method to improve superconducting properties of magnesium diboride(MgB_2) wire which is a promising material for the next generation of magnetic resonance imaging(MRI) magnet. The result makes it clear that the addition of pyrene(C_<16> H_<10>) powder leads to disorder in MgB_2 lattice and an increase in irreversibility field which is one of the most important criterions for superconducting application. The findings also show that the in-field critical current density is considerably improved by carbon distribution due to pyrene gas and the ductility of coarse Mg powder.
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