| 实用化MgB2超导材料研究进展 |
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| 引用本文： | 冯勇 闫果 张平祥 周廉. 实用化MgB2超导材料研究进展[J]. 低温物理学报, 2005, 27(2): 819-823 |
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| 作者姓名： | 冯勇 闫果 张平祥 周廉 |
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| 作者单位： | 西北有色金属研究院超导所,西安 710016 |
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| 基金项目： | 国家自然科学基金（50472099）及“863”计划（2002AA）资助项目. |
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| 摘 要： | 本文综述了实用化MgB2超导材料的最新研究进展．最新的理论和实验结果表明通过元素替代和掺杂，有希望进一步提高MgB2超导线带材的临界电流密度和磁通钉扎特性，完全可以达到实用化要求．目前MgB2超导磁体的制备技术研究已经开始，极有可能开发出采用闭路循环制冷机制冷的核磁共振成像仪（MRI）取代现在医学上使用的基于低温超导的核磁共振成像系统．
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| 关 键 词： | MgB2超导材料 磁通钉扎 线带材 MRI磁体 |
| 收稿时间： | 2005-04-01 |
PROGRESS OF MgB2 SUPERCONDUCTOR FOR PRACTICAL APPLICATION |
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| FENG YONG,YAN GUO,ZHANG PING-XIANG,ZHOU LIAN. PROGRESS OF MgB2 SUPERCONDUCTOR FOR PRACTICAL APPLICATION[J]. Chinese Journal of Low Temperature Physics, 2005, 27(2): 819-823 |
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| Authors: | FENG YONG YAN GUO ZHANG PING-XIANG ZHOU LIAN |
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| Abstract: | We report the recent development of MgB2 superconductor. Both from theoretical and experimental studies, it has been found that flux pinning in MgB2 can be improved by elements doping, which can meet the requirement of practical application. The recent studies on MgB2 coil indicates that it is possible to make MgB2 superconducting magnet for MRI using MgB2 wires or tapes, which can work at 20K with a closed circle refrigerator and replace LTS MRI for medical application. |
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| Keywords: | MgB2 superconductor flux pinning wires and tapes MRI magnet |
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