A New Method for the Preparation of MgB2 Superconducting Tapes
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Abstract
Superconducting MgB2/Ta tapes with critical temperature of 38 K have been prepared successfully by a two-step method. Boron/Ta tapes were fabricated by electrophoresis followed by a post-annealing process in magnesium vapour. The critical current density is 1.7 x 104A/cm2 in zero field at 5K. Scanning electron microscopy and x-ray diffraction analysis reveal a dense flat surface with (101) orientated growth of MgB2 phase in our MgB2/Ta tapes.
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XU Jia-Di, WANG Shu-Fang, ZHOU Yue-Liang, DAI Shou-Yu, CHEN Zheng-Hao, CUI Da-Fu, LÜ Hui-Bin, ZHU Ya-Bin, HE Meng, YANG Guo-Zhen. A New Method for the Preparation of MgB2 Superconducting Tapes[J]. Chin. Phys. Lett., 2002, 19(1): 122-123.
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XU Jia-Di, WANG Shu-Fang, ZHOU Yue-Liang, DAI Shou-Yu, CHEN Zheng-Hao, CUI Da-Fu, LÜ Hui-Bin, ZHU Ya-Bin, HE Meng, YANG Guo-Zhen. A New Method for the Preparation of MgB2 Superconducting Tapes[J]. Chin. Phys. Lett., 2002, 19(1): 122-123.
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XU Jia-Di, WANG Shu-Fang, ZHOU Yue-Liang, DAI Shou-Yu, CHEN Zheng-Hao, CUI Da-Fu, LÜ Hui-Bin, ZHU Ya-Bin, HE Meng, YANG Guo-Zhen. A New Method for the Preparation of MgB2 Superconducting Tapes[J]. Chin. Phys. Lett., 2002, 19(1): 122-123.
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XU Jia-Di, WANG Shu-Fang, ZHOU Yue-Liang, DAI Shou-Yu, CHEN Zheng-Hao, CUI Da-Fu, LÜ Hui-Bin, ZHU Ya-Bin, HE Meng, YANG Guo-Zhen. A New Method for the Preparation of MgB2 Superconducting Tapes[J]. Chin. Phys. Lett., 2002, 19(1): 122-123.
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