We investigated the mechanical properties and superconducting characteristics of high-strength (Bi, Pb)₂Sr₂Ca₂Cu₃O tapes reinforced by Ni-based alloy lamination over a wide range of temperature (30 K≤T ≤ 300 K), magnetic field (), and uniaxial tensile strain (ε ≤ 0.6%) conditions. We found that the Young’s modulus evaluated from the stress–strain curves increases gradually with decreasing temperature (120 GPa at 300 K and 142 GPa at 40 K), indicating the importance of low-T data for designing high-field magnets. The enhancement of the Young’s modulus of the tape at such low temperatures is probably attributable to the use of a Ni-based alloy for reinforcement and is also reflected in the irreversible stress. The critical current, , measured under various (T, B, ε) conditions decreases almost linearly with uniaxial tensile strain in the reversible region. We constructed a phenomenological model of that can roughly reproduce the observed under all the (T, B, ε) conditions we investigated. We expect that fine adjustment of the model parameters based on more detailed measurements will make it possible to estimate under arduous measurement conditions from data obtained under conditions where measurement is relatively easy.

我们调查了机械性能和高强度的超导特性的（Bi，Pb）的₂的Sr ₂的Ca ₂的Cu _3个ö磁带增强由Ni基在宽的温度范围内（30K≤合金层压Ť  ≤300 K），磁磁场（）和单轴拉伸应变（ε≤0.6  ％）条件。我们发现，根据应力-应变曲线评估的杨氏模量随着温度的降低而逐渐增加（300 K时为120 GPa，40 K时为142 GPa），这表明低T的重要性设计高磁场磁体的数据。在这样的低温下，带的杨氏模量的提高可能归因于使用镍基合金进行增强，并且还反映在不可逆应力中。在可逆区域中，在各种（T，  B，  ε）条件下测得的临界电流几乎随单轴拉伸应变线性减小。我们构建了一个现象模型，可以大致再现在我们研究的所有（T，  B，  ε）条件下观察到的现象。我们期望，基于更详细的测量值对模型参数进行精细调整，将有可能进行估算 在艰苦的测量条件下，根据在相对容易测量的条件下获得的数据得出。