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| 轧制与拉伸对NbTiTa/Cu多芯复合线超导性能的影响 | |
| 引用本文： | 陈自力,马 权,刘向宏,杜社军,闫 果,焦高峰,张平祥,周 廉. 轧制与拉伸对NbTiTa/Cu多芯复合线超导性能的影响[J]. 稀有金属材料与工程, 2009, 38(5): 812-815 |
| 作者姓名： | 陈自力 马 权 刘向宏 杜社军 闫 果 焦高峰 张平祥 周 廉 |
| 作者单位： | 1. 西北有色金属研究院,陕西,西安710016 2. 西北有色金属研究院,陕西,西安710016;宝鸡文理学院,陕西,宝鸡721004 3. 西部超导材料科技有限公司,陕西,西安710021 |
| 基金项目： | 国家重点基础研究发展规划(973计划) |
| 摘 要： | 利用Nb47Ti和Ta片作为原料,经过3次挤压并结合拉伸和轧制2种不同工艺,通过时效热处理制备出了NbTiTa/Cu超导线材.通过标准四引线法测量了2种线材在4.2 K下的超导性能.结果表明,采用拉伸法制备的NbTiTa线材具有更高的临界电流密度,φ1.0 mm的超导线材Jc在4.2 K、8 T下,超导性能达到791 A/mm2.通过对线材的微观组织观察表明:在相同条件下,采用拉伸后的试样芯径大小均匀、铜比均匀、芯丝排列整齐且间距相等. |
| 关 键 词： | NbTiTa超导线材 临界电流密度 时效热处理 磁通钉扎 |
| 收稿时间： | 2008-05-02 |
Effect of Rolling and Drawing on Superconducting Property in NbTiTa/Cu Multifilamentary Wires |
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| Chen Zili,Ma Quan,Liu Xianghong,Du Shejun,Yan Guo,Jiao Gaofeng,Zhang Pingxiang and Zhou Lian. Effect of Rolling and Drawing on Superconducting Property in NbTiTa/Cu Multifilamentary Wires[J]. Rare Metal Materials and Engineering, 2009, 38(5): 812-815 | |
| Authors: | Chen Zili Ma Quan Liu Xianghong Du Shejun Yan Guo Jiao Gaofeng Zhang Pingxiang Zhou Lian |
| Abstract: | NbTiTa/Cu superconducting wires were prepared through the thermal diffusion using NbTi sheets and Ta sheets as raw materials. During the process, the rolling and drawing methods were applied after three times extrusion. The superconducting property was measured by the standard method at 4.2 K in High Magnetic Field Laboratory in France. The results indicate that a higher critical current density is obtained in the drawing wires. Jc can reach 791 A/mm2 at 4.2 K and 8 T in the drawing wires with diameter of 1... |
| Keywords: | NbTiTa superconductor material critical current density diffusion heat treatment flux pinning |
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