摘要
为推动REBCO超导带材聚变堆等装置用大型高场磁体技术发展,解决大电流传输导线研制与成型问题,本文提出了一种护套型堆叠导体结构,研制样品并开展了沿其内部REBCO带材宽度和厚度方向的弯曲特性研究,使用四引线法测量样品在不同弯曲半径下的电流与电压以评估电缆载流性能变化情况。结果显示,以95%临界电流保持率作为临界点,中性面附近的带材沿着宽度方向弯曲特性明显优于沿厚度方向,沿宽度方向的临界弯曲半径为95 mm,沿厚度方向的临界弯曲半径为165 mm;最外侧的带材沿着宽度方向弯曲特性与厚度方向区别不大,样品沿宽度方向的临界弯曲半径为265 mm,厚度方向为270 mm。
To advance the development of large-scale high-field magnet technology for fusion reactors and other devices utilizing REBCO superconducting tapes,and to address the challenges in developing and forminghigh-current transmission conductors,this paper proposed a sheathed stacked conductor structure.Prototype samples were fabricated,and a study was conducted on their bending characteristics along both the width and thickness directions of the internal REBCO tapes.The current and voltage of the samples under different bending radii were measured using the four-probe method to evaluate changes in the current-carrying performance of the cable.The results show that,using 95%critical current retention as the threshold criterion,the bending performance of tapes near the neutral plane is significantly superior along the width direction compared to the thickness direction.The critical bending radius along the width direction is 95 mm,while it is about 165 mm along the thickness direction.In contrast,for the outermost tapes,the difference in bending performance between the width and thickness directions is mini mal,with critical bending radii of approximately 265 mm and 270 mm,respectively.
作者
李靖阳
王乐
杨耀军
侍世杰
阮学云
金环
秦经刚
Li Jingyang;Wang Le;Yang Yaojun;Shi Shijie;Ruan Xueyun;Jin Huan;Qin Jinggang(School of Mechatronic Engineering,Anhui University of Science and Technology,Huainan 232001,China;Energy Research Institute,Hefei Comprehensive National Science Center,Hefei 230031,China;Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China)
出处
《低温与超导》
北大核心
2025年第11期26-32,80,共8页
Cryogenics and Superconductivity
基金
国家自然科学基金(52477032)资助。
