Critical Current Under Uniaxial Strain on High-Pressure Heat Treatment Bi-2212 Round Wire
Critical Current Under Uniaxial Strain on High-Pressure Heat Treatment Bi-2212 Round Wire
复制标题
高压热处理 Bi-2212 圆线单轴应变下的临界电流
DOI：
10.1109/tasc.2020.2975740
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发表时间：
2020-02
影响因子：
1.8
通讯作者：
Li Jiangang
中科院分区：
文献类型：
--
作者：
Chen Huang;Liu Huajun;Liu Fang;Shi Yi;Jin Huan;Zhou Chao;Dai Chao;Li Chengshan;Qin Jinggang;Li Jiangang
中国聚变工程试验堆项目（CFETR）是下一代托卡马克，已被纳入未来核聚变的重要发展。与低温超导材料相比，Bi-2212具有较高的不可逆场和优异的载流能力，是最有前途的超导材料之一。特别是高压热处理可以显著提高其关键性能，扩大其应用范围。在中国科学院等离子体物理研究所（ASIPP）研究了单轴应变下高压热处理Bi-2212圆线（RW）在4.2 K和12 T背景场下的临界电流性能。所有样品均由中国西北有色金属研究院采用新工艺提供。结果表明：1 bar压力热处理试样在压应力和拉应力作用下的退化比30和50 bar压力热处理试样更为剧烈；为了研究不同的热收缩系数对衬底和试样之间的影响，采用两种不同材料的弹簧进行了实验。结果表明，Cu-Be合金弹簧比Ti-6Al-4V合金弹簧对Bi-2212 RW的相容性更好。本文详细介绍了实验设置和实验结果。
China Fusion Engineering Test Reactor project (CFETR), the next generation of Tokamak, has been incorporated into the important development of nuclear fusion in the future. Compared to the low temperature superconducting materials, Bi-2212 is one of the most promising superconducting materials due to the high irreversible field and outstanding current-carrying capacity. In particular, its critical properties can be improved dramatically by high-pressure heat treatment, which could enlarge its application range. The critical current performance of Bi-2212 round wire (RW) with high-pressure heat treatment under uniaxial strain are studied at 4.2 K in 12 T background field at Institute of Plasma Physics, Chinese Academy of Science (ASIPP). All samples are provided by Northwest Institute for Non-ferrous Metal Research (NIN) in China with new techniques. The results showed that samples with 1 bar pressure heat treatment presented a more drastic degradation under compressive and tensile stress than that the samples heat-treated with 30 and 50 bar pressure. In order to study the influence of different thermal contraction coefficient between the substrate and sample, two springs with different materials were used for the experiment. According to the results, it was found that Cu-Be alloy spring is more compatible for Bi-2212 RW than Ti-6Al-4V alloy spring. In this paper, the experiment setup and results are fully presented.
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影响因子：
3.6
作者：
Godeke, A.;Hartman, M. H. C.;Larbalestier, D. C.
通讯作者：
Larbalestier, D. C.
影响因子：
1.8
作者：
B. Ten Haken;A. Godeke;H. T. ten Kate
通讯作者：
B. Ten Haken;A. Godeke;H. T. ten Kate
影响因子：
1.8
作者：
J. Qin;Yu Wu;Jian-gang Li;C. Dai;Fang Liu;Hua-jun Liu;Peihang Liu;Chen-shan Li;Q. Hao;Chao Zhou;Sheng Liu
通讯作者：
J. Qin;Yu Wu;Jian-gang Li;C. Dai;Fang Liu;Hua-jun Liu;Peihang Liu;Chen-shan Li;Q. Hao;Chao Zhou;Sheng Liu
DOI：
--
发表时间：
2016
期刊：
--
影响因子：
--
作者：
M. Matras
通讯作者：
M. Matras
影响因子：
1.8
作者：
J. Qin;C. Dai;Qiuliang Wang;Peihang Liu;Bo Liu;Fang Liu;Yu Wu;Chao Zhou;Q. Hao;Chen-shan Li;Sheng Liu
通讯作者：
J. Qin;C. Dai;Qiuliang Wang;Peihang Liu;Bo Liu;Fang Liu;Yu Wu;Chao Zhou;Q. Hao;Chen-shan Li;Sheng Liu