[1]林 鹤,马衍伟.新型铁基超导线带材的研究进展[J].中国材料进展,2013,(9):522-532.[doi:10.7502/j.issn.1674-3962.2013.09.02]
　LIN He,MA Yanwei.Recent advances in iron-based superconducting wires and tapes[J].MATERIALS CHINA,2013,(9):522-532.[doi:10.7502/j.issn.1674-3962.2013.09.02]
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新型铁基超导线带材的研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2013年第9期
页码:
522-532
栏目:
特约研究论文
出版日期:
2013-09-30

文章信息/Info

Title:
Recent advances in iron-based superconducting wires and tapes
作者:
林 鹤; 马衍伟
(中国科学院电工研究所 应用超导重点实验室,北京100190)
Author(s):
LIN He;  MA Yanwei
(Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190China)
关键词:
铁基超导材料; 线带材; 粉末装管法; 制备工艺; 临界电流密度
分类号:
TM262
DOI:
10.7502/j.issn.1674-3962.2013.09.02
文献标志码:
A
摘要:
新型铁基超导材料具有较高的临界转变温度、超高的上临界场和非常小的各向异性等优点，在高场磁体领域应用前景广阔。目前粉末装管法已广泛应用于铁基超导线带材的制备，临界电流密度在4.2 K和10 T下高达1.7×104A/cm2, 接近实用化水平。本文首先介绍了铁基超导材料的典型结构与基本超导特性。接着详细评述了铁基超导粉末的合成和粉末装管法的工艺流程，主要包括元素配比、热处理工艺、以及粉末装管原位法和先位法的对比分析。然后重点探讨了影响线带材临界电流密度的因素及其关键制备技术。通过包套材料的选择、掺杂改性、热等静压和轧制织构等方法来解决线带材中包套与超导芯易反应、杂相多、致密度低以及晶界弱连接等难题。此外还简要介绍了多芯线带材的最新研究进展。最后，对铁基超导线带材的发展趋势做了展望。
Abstract:
The newly discovered iron-based superconductors have caused great interest for high-field applications due to their well properties such as high transition temperature, ultrahigh upper critical field and low anisotropy. The iron-based superconducting wires and tapes are commonly prepared by the powder-in-tube (PIT) process. In this paper, we focus on the fabrication techniques to realize high Jc values such as chemical composition, optimal heating conditions, sheath material, doped elements, hot isostatic press and rolling texture，particularly for 122-type pnictide wires and tapes. Excitingly, so far high transport Jc value of 1.7×104 A/cm2 at 4.2 K and 10 T has been obtained in iron-based tapes, closed to the practical level. Finally, a perspective and future development of PIT pnictide wires and tapes are given

参考文献/References:

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更新日期/Last Update: 2013-10-10