本文利用在超导芯部引入Ag合金的方法制备了一种新结构Bi2 2 2 3超导带材 ,并研究了此种带材相对于普通Bi2 2 2 3超导带材性能的变化 ,以及拉伸应变对其性能的影响 .实验结果表明 ,这种新结构提高了带材的载流性能 ,所得最终带材的最大Ic=75A ,Jc=1 .6×1 0 4 A/cm2 ,相对普通样品提高了 35 % .实验结果表明此种Bi 2 2 2 3超导带材的机械性能有明显的提高 ,样品的屈服强度σ0 .2 和不可逆应变极限εirr和普通样品相比均有较大幅度的提高 ,最大不可逆应变极限εirr约为 0 .4 5 % ,相对普通样品提高了约 5 0 %左右 ,屈服强度σ0 .2 约为 85Mpa ,相对普通样品提高了约 30 %左右 In this paper, a new structure of Bi2 2 2 3 superconducting tape was prepared by introducing Ag alloy into the superconducting core and the properties of the tape were compared with that of the conventional Bi2 2 2 3 superconducting tape. Tensile strain on the properties of the strip.The experimental results show that the new structure improves the current carrying performance of the strip, the maximum Ic = 75A, Jc = 1.6 × 104A / cm2, The results show that the mechanical properties of the Bi 2 2 2 3 superconducting tapes are obviously improved, the yield strength σ0.2 and the irreversible strain limit εirr of the samples are larger than that of the ordinary samples The maximum irreversible strain limit, εirr, was approximately 0.45%, about 50% higher than that of normal samples, and the yield strength, σ0.2, was about 85 MPa, which was about 30% higher than that of ordinary samples