Normal zone propagation and quench characteristics of Nb/sub 3/Sn wires with jelly-roll and in-situ processed CuNb reinforcements
Normal zone propagation and quench characteristics of Nb/sub 3/Sn wires with jelly-roll and in-situ processed CuNb reinforcements
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具有果冻卷和原位加工 CuNb 增强材料的 Nb/sub 3/Sn 丝的法向区传播和淬火特性
DOI：
10.1109/77.919850
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发表时间：
2001
影响因子：
1.8
通讯作者：
S. Meguro
中科院分区：
文献类型：
--
作者：
S. Murase;T. Murakami;T. Seto;S. Shimamoto;S. Awaji;K. Watanabe;Saito Takashi;G. Iwaki;S. Meguro
对三种CuNb增强Nb/sub 3/Sn线材的稳定性进行了实验研究，以阐明临界电流密度、J/sub c/和CuNb增强体中Nb含量的影响。稳定性，即，对于具有低J/sub c/和低Nb分数（A）以及具有高J/sub c/和低Nb分数（B）的具有原位处理的CuNb增强体的样品线材以及具有高J/sub c/和高Nb分数的具有果冻辊处理的CuNb增强体的样品线材（C），评估最小淬火能量MQE和正常区传播速度“/sub p/。MQE随J/sub c/、临界产生密度和Nb分数归一化的传输电流密度的增加而降低，另一方面，/spl nu//sub p/随传输电流密度的增加而增加，而与Nb分数无关。我们获得了设计具有高稳定性和机械强度的磁体的基本数据。
The stability of three types of CuNb reinforced Nb/sub 3/Sn wires has been experimentally studied in order to clarify effects of critical current density, J/sub c/, and Nb fraction in CuNb reinforcements. The stabilities, i.e., minimum quench energy, MQE, and normal zone propagation velocity, "/sub p/, were evaluated for sample wires having low J/sub c/ and low Nb fraction (A) and high J/sub c/ and low Nb fraction (B) with in-situ processed CuNb reinforcement and high J/sub c/ and high Nb fraction with jelly roll processed CuNb reinforcement (C). The MQE decreased with increase in transport current density normalized by J/sub c/, critical generation density, and Nb fraction, on the other hand, /spl nu//sub p/ increased with increasing the transport current density, regardless of Nb fraction. We obtained basic data for the design of magnets having both a high stability and mechanical strength.