Observation of reversible critical current performance under large compressive strain in Sr0.6K0.4Fe2As2 tapes
Observation of reversible critical current performance under large compressive strain in Sr0.6K0.4Fe2As2 tapes
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Sr0.6K0.4Fe2As2带材大压应变下可逆临界电流性能观察
DOI：
10.1088/1361-6668/aa6fc1
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发表时间：
2017-05
影响因子：
3.6
通讯作者：
Ma Y.
中科院分区：
文献类型：
--
作者：
Liu F.;Yao C.;Liu H.;Dai C.;Qin J.;Ci L.;Mao Z.;Zhou C.;Shi Y.;Jin H.;Wang D.;Ma Y.
铁基超导体由于其良好的性能在高场应用方面引起了极大的兴趣。用于122型线和带的常见制造路线是非原位管中粉末（PIT）工艺。从在高磁场中应用的角度来看，其中存在高电磁力，导体强度及其对机械负载的耐受性是重要的问题。为了了解Sr-122带材在轴向应变下的相对完整的临界电流特性，使用所谓的U弹簧装置在宽范围的施加轴向应变（−0.6%至0.3%）下测试具有单芯的镀银Sr0.6K0.4Fe2As2带材样品。结果表明，当试样受压时，其临界电流特性呈现可逆性，同时不可逆拉伸应变极限很低。Sr-122/Ag超导带材在压缩状态下表现出非常好的性能，应考虑一种可能的导体设计，使超导体在适当的压缩应变状态下工作，以供未来的应用。
Iron-based superconductors have caused great interest regarding high-field applications due to their good properties. A common fabrication route for 122-type wires and tapes is the ex situ powder-in-tube (PIT) process. From the point of application in the high magnetic field, where high electromagnetic forces are present, the conductor strength and its tolerance to the mechanical load are important issues. In order to understand the comparatively integrated critical current characterization of the Sr-122 tape under axial strain, the so-called U-spring setup was used to test a silver-sheathed Sr0.6K0.4Fe2As2 tape sample with a single core over a wide range of applied axial strain (−0.6% ∼ 0.3%). It was found that when the sample was compressed, the critical current performance showed reversiblity; meanwhile the irreversible tensile strain limit was quite low. The Sr-122/Ag tape shows very good performance under compression, and a possible conductor design should be considered to make the superconductor work at proper compressive strain states for future applications.
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影响因子：
3.6
作者：
Pallecchi, Ilaria;Eisterer, Michael;Putti, Marina
通讯作者：
Putti, Marina
Ag护套Bi2212圆线的轴向拉伸应力应变特性
影响因子：
1.8
作者：
Dai, Chao;Liu, Bo;Zhou, Chao
通讯作者：
Zhou, Chao
DOI：
10.1016/j.physc.2015.05.006
发表时间：
2015-09-15
影响因子：
1.7
作者：
Ma, Yanwei
通讯作者：
Ma, Yanwei
影响因子：
4
作者：
Yamamoto, A.;Jaroszynski, J.;Mandrus, D.
通讯作者：
Mandrus, D.
影响因子：
3.7
作者：
Ni, N.;Bud'ko, S. L.;Canfield, P. C.
通讯作者：
Canfield, P. C.