Liu, Yunhao Sun, Yi Gao, Peng Nijhuis, Arend Devred, Arnaud Guo, Zichuan Zhu, Huajin Xu, Peng Shi, Yi Liu, Fang
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Published in
Superconductor Science and Technology
In order to meet the target operating parameters of the toroidal field coils (TFCs) for the next-generation Chinese compact burning plasma tokamak, high critical current density (Jc) Nb3Sn strand will be applied to the high-field winding-package of the TFC. To improve the transverse stiffness of the cable in withstanding the huge Lorentz force and ...
Maksimova, A N Moroz, A N Rudnev, I A Pokrovskii, S V Kashurnikov, V A
Published in
Physica Scripta
Current–voltage characteristics of a superconductor with tilted irradiation defects in a dc magnetic field have been calculated using the Monte Carlo method in the framework of the three-dimensional model of a layered high-temperature superconductor (HTS). The dependences of the critical current on the magnitude of the external magnetic field have ...
Burioli, S Iannone, G De Marzi, G D’Agostino, D Avallone, G Gagno, A Bracco, M Leveratto, A Traverso, A Pedrini, D
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Published in
Superconductor Science and Technology
In the framework of studies on high-field magnets for future accelerators, a specific project called ASTRACT focuses on the effect of transverse strain on the critical current of Nb3Sn wires. The first phase of the project addresses the effects of strain imposed on Nb3Sn wires before heat treatment and the development of a procedure to directly com...
A Soman, Arya Wimbush, Stuart C Long, Nicholas J Rupich, Martin W Leveneur, Jerome Kennedy, John Strickland, Nicholas M
Published in
Superconductor Science and Technology
Particle irradiation offers a route to incorporating additional flux pinning centres in high-temperature superconducting wires with minimal disruption to the pre-existing defect landscape, thereby further enhancing the critical current in a controllable fashion. This work is a comprehensive study of the fluence-dependence of proton irradiation usin...
Llovo, I F Mosqueira, J Hu, Ding Luo, Huiqian Li, Shiliang
Published in
Superconductor Science and Technology
The critical current Ic of single crystals of the iron pnictide superconductor BaFe2(As 1−x P x )2 has been studied through measurements of magnetic hysteresis cycles. We show that the introduction of micrometer-scale irregularities on the surface significantly increases Ic , primarily near the irreversibility magnetic field Hirr . The observed inc...
Shao, Liangjun Zhang, Yongjie Xin, Canjie Liu, Fang Yan, Yufan Li, Yi Yue, Yubin Xu, Ziyang Song, Peng Zhang, Xintao
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Published in
Superconductor Science and Technology
The screening-current effect is an inhomogeneous distribution of current density inside the REBCO conductors. The additional strain induced by the screening current, known as screening-current induced strain (SCS), is considered to affect the structural integrity of REBCO windings, especially when operating high-field REBCO insert magnets. In this ...
Haraoka, Soma Otabe, Edmund Soji Mawatari, Yasunori
Published in
Japanese Journal of Applied Physics
Studies of the magnetic interference of sandwich-type Josephson junctions in which perpendicular or oblique magnetic fields are applied to the junction plane have received less attention than those where the applied magnetic fields are parallel. Recently, it has been theoretically demonstrated that a variety of magnetic interferences of the critica...
Yang, Tianhui Li, Wenxin Xin, Ying
Published in
Physica Scripta
Two categories of high-temperature superconducting (HTS) tapes, the silver-sheathed BSCCO tape (1G HTS tape) and REBCO coated conductor (2G HTS tape), have been commercialized worldwide and widely used in applications. In this study, the 1G HTS tape produced by Sumitomo and 2G HTS tape produced by Superpower were selected for a systematic comparati...
Lenoir, Gilles Puthran, Kirtana Barth, Christian Fleiter, Jérôme Ballarino, Amalia
Published in
Superconductor Science and Technology
The accelerator magnets for the high luminosity upgrade of the large Hadron collider use Nb3Sn conductor to achieve the required in-field performance. To sustain the Lorentz forces during operation, a pre-compression is applied to the coils during the fabrication of the magnet. This can lead to an irreversible degradation of the Nb3Sn conductor due...
Muzet, Jérémie Trophime, Christophe Chaud, Xavier Prudhomme, Christophe Chabannes, Vincent
To accompany the development of High Temperature Superconductor (HTS) magnets at the Laboratoire National des Champs Magnétiques Intenses, we have initiated an activity on implementing numerical models to simulate HTS with the Feel++ finite element (FE) library used for the simulation of the lab high field resistive magnets. In this work, we give a...
