Magnetic and magnetostrictive properties of finite superconducting cylinders containing a cavity
Magnetic and magnetostrictive properties of finite superconducting cylinders containing a cavity
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包含空腔的有限超导圆柱体的磁和磁致伸缩特性
DOI：
10.1063/1.4862856
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发表时间：
2014-01
影响因子：
3.2
通讯作者：
Zhou, You-He
中科院分区：
文献类型：
--
作者：
Huang, Chen-Guang;Huang, Chen-Guang;Zhou, You-He;Zhou, You-He
高温超导体由于其固有的脆性和缺陷，如何提高其力学性能是超导体应用的核心问题。本文分析了含椭球腔的有限圆柱形ii型超导体在外加磁场中的力学行为。采用Bean临界状态模型和最小磁能变化法，得到了磁性能和磁弹性行为与腔体尺寸和超导样品尺寸的关系。结果表明，该样品的感应电流和磁场分布与圆柱体或环体有很大的不同，当径向壁厚超过一个临界值时，磁化过程中磁致伸缩曲线出现垂直翻转行为。同时，在野外下降过程中，应力分量的总体最大值提高了2倍。
To improve the mechanical properties of high temperature superconductors due to the intrinsic brittleness and defects is a central problem for the application of the superconductors. This paper presents an analysis of mechanical behavior for the finite cylindrical type-II superconductors containing an ellipsoidal cavity in an applied magnetic field. After the Bean's critical state model and the method of minimum magnetic energy variation are employed, the dependences of the magnetic properties and magnetoelastic behaviors on the sizes of the cavity and superconducting sample are obtained. The results display that the induced current and magnetic field distributions in such sample are quite different from the case of a cylinder or ring, and a vertical flipping behavior of the magnetostriction curves is found in the magnetization process when the radial wall thickness changes through a critical value. Meanwhile, the overall maxima of the stress components during field descent are enhanced by a factor of 2 o...
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具有场相关临界电流的薄型 II 型超导带的磁弹性行为
影响因子：
3.2
作者：
Xue, Cun;Xue, Cun;He, An;He, An;Yong, Huadong;Yong, Huadong;Zhou, Youhe;Zhou, Youhe
通讯作者：
Zhou, Youhe
影响因子：
3.7
作者：
T. Johansen
通讯作者：
T. Johansen
影响因子：
1.7
作者：
F. Inanir;S. Çelebi;M. Altunbas;M. Okutan;M. Erdoğan
通讯作者：
F. Inanir;S. Çelebi;M. Altunbas;M. Okutan;M. Erdoğan
DOI：
10.1016/0921-4534(95)00398-3
发表时间：
1995-09
影响因子：
1.7
作者：
Y. Ren;R. Weinstein;J. Liu;R. Sawh;C. Foster
通讯作者：
Y. Ren;R. Weinstein;J. Liu;R. Sawh;C. Foster
影响因子：
3.2
作者：
Xiaobin Yang;S. Tu
通讯作者：
Xiaobin Yang;S. Tu