国际高温超导带材战略研究报告发布

Core Insights - The report released by the Chinese Academy of Sciences focuses on the development of REBCO high-temperature superconducting tapes, outlining the current state of research, industrialization, and application globally, and identifies ten key scientific and technological challenges in the field [1] Group 1: Applications and Potential - Superconducting materials, including REBCO tapes, are considered strategic materials with vast application potential in energy, transportation, medical, and scientific fields, serving as a cornerstone for future technological breakthroughs [1] - REBCO tapes have shown significant application potential in areas such as magnetic confinement fusion, high-end medical equipment, large scientific installations, and superconducting power devices, primarily focusing on power systems and magnet systems [1][2] Group 2: Current Challenges and Future Directions - Despite entering the early stages of commercialization, there is substantial room for performance improvement in REBCO high-temperature superconducting tapes, which consist of a multi-layer composite structure [2] - The report emphasizes the need for collaborative innovation in materials, processes, and applications, focusing on optimizing the internal structure of the superconducting layer, improving the balance of strength and toughness in the base, buffer, and protective layers, and developing scalable, consistent manufacturing processes to meet growing application demands [2] Group 3: Key Scientific and Technological Issues - The report identifies ten critical scientific and technological issues hindering the large-scale application of REBCO tapes, including enhancing the yield strength and fatigue resistance of alloy substrates, overcoming inherent limitations of buffer layer materials, and achieving stability and uniformity in IBAD texture under thin thickness conditions [3] - Other issues include understanding the growth dynamics of different cap layers in high-speed deposition environments, improving the bonding strength between cap and superconducting layers, and clarifying the multi-physical field coupling mechanisms in MOCVD preparation to enhance the uniformity of superconducting layer thickness and composition [3]