The REBa₂Cu₃O_x (REBCO) tape, known for its exceptional mechanical properties, stands as an optimal conductor for high-field applications. Nevertheless, stress degradation attributed to the membrane and monofilament structure of REBCO tape often occurs in high-field REBCO coils. On the other hand, iron-based superconductor (IBS) tapes offer notable advantages, including multifilament structure and upper critical field above 150 T, rendering it an appealing choice for high magnetic field applications. In this context, we first propose a methodology for designing a new type of compact hybrid magnet that integrates REBCO coils with multifilament IBS coils and a water-cooled resistive magnet to generate a high magnetic field. This paper presents the preliminary design of a hybrid magnet and employs a numerical simulation model to assess the magnet's electromagnetic and mechanical configuration, the simulation results show that the stress and strain experienced by all coils is within safe limits. Furthermore, details of the fabrication and testing of the IBS-REBCO joint are also provided. We hoped that the resistance of the IBS-REBCO joint would be less than 50 nΩ, however the resistance of the joint we developed did not meet our expectations. We discuss the reasons and propose the next plan to improve the performance of the IBS-REBCO joint.

REBa ₂ Cu ₃ O _x (REBCO) 胶带以其卓越的机械性能而闻名，是高场应用的最佳导体。然而，REBCO 胶带的膜和单丝结构引起的应力退化经常发生在高场 REBCO 线圈中。另一方面，铁基超导（IBS）带具有显着的优势，包括多丝结构和高于 150 T 的上临界场，使其成为高磁场应用的有吸引力的选择。在此背景下，我们首先提出了一种设计新型紧凑型混合磁体的方法，该方法将 REBCO 线圈与多丝 IBS 线圈和水冷电阻磁体集成在一起，以产生高磁场。本文提出了混合磁体的初步设计，并采用数值仿真模型来评估磁体的电磁和机械配置，仿真结果表明所有线圈所承受的应力和应变都在安全范围内。此外，还提供了 IBS-REBCO 接头的制造和测试细节。我们希望IBS-REBCO接头的电阻小于50nΩ，但是我们开发的接头的电阻没有达到我们的预期。我们讨论原因并提出下一步计划以提高 IBS-REBCO 联合的性能。