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装管密度对Bi-2223/Ag超导带材性能的影响
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TM262

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“863”专项基金(2002AA306121),“973”国家重点基础研究基金(G19990646-05)


The Influence of Packing Density on the Superconducting Properties of Bi-2223/Ag Tape
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    摘要:

    研究了不同装管密度对Bi-2223/Ag带材(19芯)性能的影响。结果表明:采用压棒装管工艺提高了带材芯丝的填充系统,有利于提高带材的工程电流密度;第一次热处理后带材表面的鼓泡明显比松装带材少,有利于提高电流沿长度方向上的均匀性,更适合制备长带。压棒装管带材与松装带材相比,宽展更大,最终热处理后芯丝致密,孔洞少,而且2223相含量高,最终带材的载流性能好于松装带材。

    Abstract:

    The influence of initial packing density on the superconducting properties of Bi-2223/Ag tape has been studied. The results indicate that the processing of cold-isostatic-pressing(CIP) can increase the fill factor and the ]r of tape. The number of bubble after first heat treatment is reduced by CIP processing which can improve the uniformity of Jr along the longitudinal direction to be more suitable for the fabrication of long Bi-2223/Ag tapes. During rolling, the CIP tape is more wider than the loose packed tape. With more fraction of Bi-2223 phase, dense core and less porosity, the Jc of the CIP tapes is increased.

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邵惠明 周廉 张平祥 冯勇 段镇忠 郑会玲 唐晓东 李成山 张小聪 孙祥云.装管密度对Bi-2223/Ag超导带材性能的影响[J].稀有金属材料与工程,2003,(10):832~835.[Shao Huiming, Zhou Lian, Zhang Pingxiang, Feng Yong, Duan Zhenzhong Zheng Huiling'''',Tang Xiaodong, Li Chengshan, Zhang Xiaocong, Sun Xiangyun. The Influence of Packing Density on the Superconducting Properties of Bi-2223/Ag Tape[J]. Rare Metal Materials and Engineering,2003,(10):832~835.]
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  • 最后修改日期:2002-02-19
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