MT27, 27th International Conference on Magnet Technology

Session

TUE-PO1-609 Stability and Mechanical Properties

609

16 Nov 2021, 13:15

Fukuoka Convention Center

875. Angular dependences of critical current for REBCO coated conductors under bending strains (TUE-PO1-609-01)

Mr Yuuta Kurihara (tokai university)

16/11/2021, 13:15

Poster

REBCO coated conductors are expected to apply high field superconducting magnets since they have high critical currents and excellent mechanical properties. It is well known that REBCO coated conductors have angular dependence and strain dependence of the critical current in magnetic field. However, there are few experimental results of angular dependence of critical current under strains....

365. Bending and Twisting Properties of Quasi-isotropic Superconducting Strand at Liquid Helium Temperatures Based on Laminate Theory (TUE-PO1-609-02)

Ziyuan Sun (NCEPU)

16/11/2021, 13:15

Poster

With the development of REBCO high-temperature superconductor (HTS), many structures of superconducting strand/conductor stacked with REBCO tapes were proposed in past years. The Quasi-isotropic superconducting strand made by stacked REBCO tapes and copper tapes was proved to have excellent performance in critical current at liquid nitrogen temperatures. In this paper, the critical current of...

338. Conductive micro-path for current sharing between REBCO tapes in high-Tc superconducting conductors to improve stability (TUE-PO1-609-03)

Hiroyuki Yamada (Nagoya University)

16/11/2021, 13:15

Poster

The high-temperature superconductor REBa2Cu3Oy (REBCO) is expected to be applied to fusion magnets because of its high critical current density at 20 K [1]. Various kinds of REBCO conductors with a large current capacity have been developed for the fusion magnets by stacking the REBCO tapes such as FAIR conductor [1]. A drawback of REBCO conductors is that the buffer layer prevents current...

507. Evaluation for Critical Current of REBCO coated conductor under various tensile strains and magnetic field angles. (TUE-PO1-609-04)

Mr Kimito ISHIZUKA (Tokai University)

16/11/2021, 13:15

Poster

REBCO coated conductors have a high critical current density in a high magnetic field at low temperature. Therefore, the research and development of REBCO coated conductors have proceeded for high magnetic field applications. A critical current of REBCO coated conductor shows field angular dependence and strain dependence. Especially, the mechanism of the strain effect for REBCO coated...

409. Investigations of stability of the second generation HTS composites under of current loads at various regimes (TUE-PO1-609-05)

Svetlana Veselova (NRNU MEPhI)

16/11/2021, 13:15

Poster

Currently, the development of superconducting magnetic energy storage devices (SMES) based on the cables from high-temperature superconducting tapes of the second generation are carried out. Such SMES will be used, for example, in the NIKA project to power the pulsed magnets of Booster and Nuclotron accelerators. Similar cables may be used in accelerating magnets as well. The number of working...

851. Mechanical and electromechanical behavior of REBCO coated conductors under combined tensile-bending deformation (TUE-PO1-609-06)

Mr Yingzheng Pan (Lanzhou University)

16/11/2021, 13:15

Poster

In the case of a REBCO superconducting coil, the coated conductors endure both tensile and bending strain. Therefore, the mechanical behavior of REBCO coated conductors and its effect on the critical current under combined tensile-bending deformation should be revealed. In this study a mixed-dimensional laminated composite finite element model (FEM) for REBCO conductor is developed for stress...

937. Study on AC Over-Current Characteristics with the Physical Properties of the Outer Layer of REBCO Superconducting Wire Having Composite Structure Using RF Sputtering Deposition Method (TUE-PO1-609-09)

Mr Sang Jae Ban (Jeonbuk National University)

16/11/2021, 13:15

Poster

In this paper, a REBCO thin film superconducting wire was fabricated by depositing materials with different specific resistance values (Ag) on REBCO superconducting wire, using the “RF Sputtering Deposition Method” with micro-range thicknesses to form the outer layer. Then the fabricated REBCO superconducting wire were subjected to basic characteristics tests (measurement of their temperature...

144. The electrical behavior of stacked coated conductors concerning the interlayer resistance (TUE-PO1-609-10)

Hao Zhou (Department of Electrical Engineering, Shanghai Jiao Tong University)

16/11/2021, 13:15

Poster

The superconducting tape stack has increasing impact on the applied superconductivity community due to the high field and current applications such as plasma confining magnets. The interlayer resistance of the stack, however remains a problem for the Coated Conductors (CCs) due to the ceramic buffer layer, which causes totally different behavior of the stack of CCs and the traditional low...

346. The Study on Quench properties of 2G HTS coils using the tapes by Holing and Hole filling process (TUE-PO1-609-11)

Dong-Woo Ha (Korea Electrotechnology Research Institute)

16/11/2021, 13:15

Poster

Since the 2G HTS tapes are made by a multi-layered thin film process, delamination occurs easily when stress is applied in the vertical direction of the tape. That is, in the cooling process of the superconducting coil, delaminations occur in the multi-layered HTS tapes when the stress value due to the difference in the thermal contraction rate of each material constituting the HTS tape is...