Zhang, Hongye
Published in
Superconductor Science and Technology
Featured by high power density and efficiency, high temperature superconducting (HTS) electric machines provide a promising solution to heavy-duty electric transport, e.g. electric aircraft. However, designing HTS machines, particularly high-speed HTS motors, presents significant challenges: (1) modelling is highly time-consuming due to the non-lin...
Wang, Mingyang Meng, Xuan’ang Wang, Xueliang Ye, Haosheng Zhou, Xuan Sheng, Jie Li, Zhuyong Jin, Zhijian
Published in
Superconductor Science and Technology
Due to the critical current limitation of a single rare-earth barium copper oxide (REBCO) tape, stacking methods are generally employed to increase the current carrying capacity in practical high-temperature superconducting (HTS) applications. However, the overall critical current is strongly dependent on the self-magnetic field, which is influence...
Wang, Yue Zhong, Xianghai Zeng, Junwen Pan, Yinping Zhang, Denghui Yu, Shujie Wu, Ling Zhang, Lu Peng, Wei Ren, Jie
...
Published in
Superconductor Science and Technology
Superconducting memory cells that use flux quanta as their storage medium can achieve ultra-fast access times with ultra-low power consumption. However, the data signal generated by a flux quantum memory (FQM) cell is usually too weak and too fast to be measured directly. Here, we present a method to characterize the real-time operation of an FQM c...
Kase, Naoki Kondo, Katsuo Watanabe, Shigefumi Miyakawa, Nobuaki
Published in
Superconductor Science and Technology
We report the effect of hydrostatic pressure on LaO0.5F0.5Bi(S 1−x Sex)2 with chemical pressure applied to a conducting layer by means of electrical resistivity and ac-magnetic susceptibility measurements up to 2.5 GPa. We confirmed the bulk superconductive nature of the low superconducting (low-SC) and high superconducting (high-SC) phase using ac...
Nieves, O A Müller, K-H
Published in
Superconductor Science and Technology
We numerically investigate the noise scaling in high-Tc commensurate 1D and 2D SQUID arrays. We show that the voltage noise spectral density in 1D arrays violates the scaling rule of ∼1/Np for the number Np of Josephson junctions in parallel. In contrast, in 2D arrays with Ns 1D arrays in series, the voltage noise spectral density follows more clos...
Mullings, Alexia Mensah, Paul Das, Arup K Guvvala, Nagaraju Kim, Chul H Pamidi, Sastry V Cheetham, Peter
Published in
Superconductor Science and Technology
Design innovations to manage the electric field enhancements and successful use of cryogenic epoxy EP37 as electrical insulation for high temperature superconducting (HTS) cables for electric aircraft applications are reported. Detailed finite element analysis (FEA) of the electric field distribution shows that the highest electric field is at the ...
Liu, Yang Gao, Yuanwen
Published in
Superconductor Science and Technology
The second generation (2G) high-temperature superconducting (HTS) REBCO tape and the HTS cable made by the REBCO company are considered to be alternative materials for future superconducting magnet design due to their exceptional performance. The twisted stacked-tape slotted-core (TSSC) cable-in-conduit-conductor cable, which is one of the crucial ...
Yang, Shige Tang, Bohan Yue, Zhilai Yu, Hui Xie, Bowen Li, Sicheng Chen, Yanquan Niu, Rui Zhao, Jun Zhou, Peng
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Published in
Superconductor Science and Technology
High temperature superconducting (HTS) tapes have crucial applications for generating high magnetic fields with minimal power input. Given a single tape has a limited current-carrying capacity, stacked tapes are common, fabricated through methods like solder soldering or epoxy impregnation requiring heat treatment. In this work, we have investigate...
Zhou, Yuwei Huang, Zhen
Published in
Superconductor Science and Technology
Constrained by the fabrication of second-generation high-temperature superconducting (2G HTS) tapes, connecting multiple pieces of tapes through joints is often necessary in large-scale applications. In the application of HTS magnets, joint technology is key for achieving closed-loop operation and reducing thermal loads. However, most soldered join...
Liu, Jingyi Lu, Zhen Wang, Yawei Yang, Qingqing Fu, Yutong Zhao, Yue Jin, Zhijian
Published in
Superconductor Science and Technology
Quench protection has always been challenging for high-temperature superconductor (HTS) coils. Fast current discharge after quench detection is important for a successful coil protection. The copper plates initially intended for cooling can significantly accelerate the discharging process for HTS coils through electromagnetic coupling between coils...
