Chin. Phys. Lett.  2006, Vol. 23 Issue (4): 964-966    DOI:
Original Articles |
Mechanical Properties of (Bi,Pb)-2223 Multifilament Tapes with Ag-Alloy Sheath
LIANG Ting1,2;QU Ti-Ming1;LI Pei1;HAN Zheng-He1
1Applied Superconductivity Research Center, Tsinghua University, Beijing 100084 2Institute of Chemical Defense of the Chinese People’s Liberation Army, Beijing 102205
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LIANG Ting, QU Ti-Ming, LI Pei et al  2006 Chin. Phys. Lett. 23 964-966
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Abstract Ag-Mg-V alloy is prepared and investigated to develop a new sheath alloy used for BSCCO tapes. Bi-2223 Ag/AgMgV and Bi-2223 AgMgV/AgMgV tapes are studied with the help of stress-strain measurement, optical microstructure and critical current Ic. The value of Ic at 77K and at magnetic field B=0 is obtained to be 90A/cm2 for the samples of Bi-2223 Ag/AgMgV tapes, which is higher than that of Bi-2223 AgMgV/AgMgV tapes (72A/cm2). The resistance of AgMgV alloy, up to 0.37μΩ.cm at 77K, is higher than that of pure Ag (0.28μOmega.cm) after annealed at 840°C for 40h, which is studied for reducing the ac loss. The values of the fracture strength and the maximum strain are 86MPa and 0.50% for Bi-2223 Ag/AgMgV tapes and 108MPa and 0.33% for Bi-2223 AgMgV/AgMgV tapes, respectively.


Keywords: 74.25.Sv      74.25.Ld      74.72.Hs     
Published: 01 April 2006
PACS:  74.25.Sv (Critical currents)  
  74.25.Ld (Mechanical and acoustical properties, elasticity, and ultrasonic Attenuation)  
  74.72.Hs  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I4/0964
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