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核聚变与等离子体物理 ›› 2010, Vol. 30 ›› Issue (2): 148-151.

• 核聚变工程技术 • 上一篇    下一篇

ITER超导股线的力学性能测试

刘 勃,武 玉,刘 方,龙 风   

  1. (中国科学院等离子体物理研究所,合肥 230031)
  • 收稿日期:2009-07-15 修回日期:2010-01-21 出版日期:2010-06-15 发布日期:2010-06-03
  • 作者简介:刘勃(1985-),男,山东青岛人,2007年毕业于青岛大学,硕士研究生,目前从事Nb3Sn超导股线力学性能研究方向。

Test of ITER superconduct strand's mechanical properties

LIU Bo,WU Yu,LIU Fang,LONG Feng   

  1. (Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)
  • Received:2009-07-15 Revised:2010-01-21 Online:2010-06-15 Published:2010-06-03

摘要: 介绍了Pacman装置的设计原理,用Pacman装置测量了OST公司通过内锡法工艺制备的Nb3Sn超导股线在12T,4.2K条件下单轴方向的临界电流与应变的关系,应变的范围在-0.8%~+0.6%。用偏量比例模型模拟了临界电流与轴向应变之间的规律,分析了随应变的改变n值的变化,得出了Nb3Sn超导股线对应变的敏感程度。

关键词: Nb3Sn, 轴向应变, Pacman装置, 偏量比例模型, ITER

Abstract: Design theory of the Pacman equipment was introduced and characteristic curves of critical current and strain of Nb3Sn strands processed by the OST company with internal tin were described. The Nb3Sn strands were measured in the axial strain range from -0.8%~+0.6% at 4.2K and 12T by the Pacman equipment. The scaling law between critical current and axial strain was simulated with the improved deviatoric scaling model. The relation between n value and the axial strain was analyzed, and the Nb3Sn strands’ sensitivity to strain was concluded.

Key words: Nb3Sn, Axial strain, Pacman, Improved deviatoric scaling model, ITER

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