Superconducting and mechanical properties of internally steel reinforced Nb 3 Sn wires with Ta or (Ni+Zn) additions
Superconducting and mechanical properties of internally steel reinforced Nb 3 Sn wires with Ta or (Ni+Zn) additions
复制标题
添加 Ta 或 (Ni Zn) 的内钢增强 Nb 3 Sn 线的超导和机械性能
DOI：
10.1109/tmag.1983.1062256
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
W. Specking
中科院分区：
文献类型：
--
作者：
R. Flukiger;E. Drost;W. Goldacker;W. Specking
研究了Nb3Sn线内部钢筋对载流能力的影响。与未增强的Nb3Sn线相比，预压强度有了很大的提高：通过测量临界电流密度，得到了高达∼1%的em值。超导参数受到很大的影响：相对于未增强的线材，上临界场Bc2*从∼2 0降低到16T，而Jc/J cm很低，在10T时为0.37，在14T时为0.12。在Nb3Sn中添加Ta或(Ni+Zn)元素可部分补偿预压缩对Jc的影响
The effects of internal steel reinforcement of Nb 3 Sn wires on the current carrying capacity are studied. A strong enhancement of the precompression is found with respect to unreinforced Nb 3 Sn wires: critical current density measurements as a function of the applied strain yielded e m values reaching up to ∼ 1%. The supercondcuting parameters are strongly affected: the upper critical field, B c2 *, is lowered from ∼20 to 16 T with respect to the unreinforced wire, while the ratio J c /J cm is very low, 0.37 at 10 T and 0.12 at 14 T. The effects of the enhanced precompression on J c are found to be partly compensated by Ta or (Ni+Zn) additions to Nb 3 Sn.