In this study, the thermal processes of a quasi-isotropic conductor in response to a heat disturbance are studied in detail, by combining simulations and experiments. A simulation model considering the anisotropy in the heat transfer coefficient of high-temperature superconducting (HTS) materials was established. The quasi-isotropic superconductor (QIS) was tested from 20 to 77 K, and the stacked tapes conductor (STC) was tested synchronously for the convenience of comparison. Compared with STC, the internal temperature distribution of QIS exhibits high isotropy and lower temperature rise. The thermal process following local tapes quenching is analyzed through simulation. The results show that the temperature rise of QIS is more uniform and lower than that of STC, which brings better thermal stability response to a heat disturbance.

在这项研究中，结合模拟和实验，详细研究了准各向同性导体响应热干扰的热过程。建立了考虑高温超导（HTS）材料传热系数各向异性的仿真模型。为了便于比较，对准各向同性超导体（QIS）进行了20至77 K的测试，并同步测试了堆叠带状导体（STC）。与STC相比，QIS的内部温度分布具有较高的各向同性和较低的温升。通过仿真分析了局部带材淬火后的热过程。结果表明，QIS的温度上升比STC的温度上升更均匀且更低，因此对热干扰具有更好的热稳定性。