【摘要】 用国产Bi2223/Ag带(西北有色金属研究院提供)设计的中心场3.0T,贮能35kJ的传导冷却高温超导磁体正在建造中.磁体由绕组内径150mm,外径272mm的32个双饼磁体组成.磁体在温度T=20K下,设计临界电流Ic=132A,额定运行电流I=100A.在T=20K附近进行四双饼组合磁体实验,得到磁体Ic=140A,中心场Boc=1.14T,相应Bi2223/Ag带上最大轴向场Bzmax=1.91T,Bi2223/Ag带上最大垂直场Brmax=1.14T.四双饼组合磁体的实验结果预示:35kJ HTS贮能磁体的设计目标能够达到.更多还原

【Abstract】 The development of a Bi2223/Ag tape HTS magnet with a central field of 3.0T and a stored energy of 35kJ is in progress. The magnet consisting of 32 double pancakes with an inner diameter of 150mm and outer diameter of 272mm will be made of homemade Bi2223/Ag HTS material offered by the Northwest Institute for Non-Ferrous Metal Research. At the temperature of 20K the magnet will work with a rated current of 100A and its designed critical current I_ c is 132A.The magnet assembly consisting of 4 double pancakes has been conducted at the temperature near 20K and the magnet critical current I_ c reach 140A with a maximum perpendicular field of 1.14T at the conductor. The experimental results of the four double pancake magnet assembly show that the design goal of the 3.0T, 35kJ HTS magnet could be realized.更多还原