本期目录 | 过刊浏览 |

应变对ITER用Nb3Sn多芯股线载流能力的影响

梁明1,卢亚锋2,张平祥2,周廉1,唐先德2,李金山2

1. 西北有色金属研究院 2.

Strain effect on transport properties of Nb3Sn multifilament strands of internal tin route for ITER

梁明 卢亚锋 张平祥 周廉 唐先德 李金山. 应变对ITER用Nb3Sn多芯股线载流能力的影响 [J]. 金属学报, .

摘要 相关文章 Metrics 全文: PDF(616 KB)   摘要: ITER项目中，Nb3Sn超导多芯复合股线在制备，绕制，热处理和运行过程中受到材料应变状态的影响。采用Pacman弹簧装置测量在不同磁场，温度和应变条件下Nb3Sn多芯股线的V-I特征曲线。外部磁场变化范围由4T到11T，温度变化由4.2K至10K，材料轴向应变变化范围在-0.9%~+0.6%。通过偏量比例模型模拟材料临界电流Ic随应变状态的变化规律。研究轴向应变条件下，超导材料载流能力的衰退和n值的变化，获得我国ITER用Nb3Sn多芯复合股线的应变特征。 关键词 ： Nb3Sn,  内锡法,  ITER,  轴向应变,  偏量比例模型     Abstract：Superconducting properties of Nb3Sn strands are much affected by the strain state of strands. More attention is concentrated on the influence of axial strain and bending test on the performance of Nb3Sn strands and cables for practical applications. Nb3Sn strands fabricated by internal tin process were measured in the axial strain ranged from -0.9% (compressive) to +0.6% (tensile) at 4.2K, 12T for ITER use. The different strain sensitivity of Jc to the strain state was elaborated for the strands. The degradation of the superconducting critical current density and the n value due to strain were analyzed. Key words： Nb3Sn    internal tin process    ITER    axial strain    dev. Strain model 收稿日期: 2008-01-14      ZTFLH:    基金资助:国家973计划资助项目 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 梁明 卢亚锋 张平祥 周廉 唐先德 李金山 44.8K 链接本文: https://www.ams.org.cn/CN/Y2009/V45/I2/0 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed