Analysis of Current and Magnetic Distributions in REBCO Superconducting Coated Conductors in Self- and External Fields

Wang, Luo; Wang, Q.

doi:10.1007/s10948-013-2392-0

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…After the discovery of superconductivity in cuprate perovskite compounds [1], a lot of research has been done to investigate the mechanism responsible for superconductivity in these compounds. REBCO type superconductors (RE: rare earth elements) have been effectively examined due to their high potential in electrical and magnetic applications [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Effect of MgB₂ additives on structure, electrical and thermal properties of Eu₁Ba₂Cu₃O₇

Akduran

2018

Materials Science-Poland

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The effect of MgB 2 addition on the Eu 1 Ba 2 Cu 3 O 7 (EBCO) ceramics was systematically studied. Series of Eu 1 Ba 2 Cu 3 O 7 + x(MgB 2 ) samples (x = 0 wt.%, 0.05 wt.%, 0.1 wt.%, 1 wt.%, 3 wt.%) were prepared using traditional solid state method. X-ray powder diffraction measurements were used for phase identification. The lattice parameters and orthorombicity decreased with MgB 2 addition. A standard four point measurement method was used to determine transition temperatures T c of superconducting samples. T c values of the samples were decreasing with MgB 2 concentration. TGA results indicate thermal stability of doped samples.

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Section: Introductionmentioning

confidence: 99%

Effect of MgB₂ additives on structure, electrical and thermal properties of Eu₁Ba₂Cu₃O₇

Akduran

2018

Materials Science-Poland

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“…There are two mechanisms of magnetic field penetration inside the shield; from the superconductor surface and through the opened coil ends [2]. The flux profiles of coil in transverse magnetic fields can be obtained using an analytical models [3], [4] or with a finite element model [5]. In the present work, a coil made of YBCO tape in the transverse magnetic field configuration will be studied.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Shielding Characteristics of Second Generation High Temperature Superconductors at Variable Temperatures Obtained by Cryogenic Helium Gas Circulation

Kvitkovič

Davis

Zhang

et al. 2015

IEEE Trans. Appl. Supercond.

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Magnetic shielding characteristics of 40 mm wide second generation high temperature superconducting (2GHTS) materials were studied at variable temperatures. Shielding characteristics were measured in DC and variable frequency AC magnetic fields at a range of magnitudes up to 60 mT. Magnetic shields fabricated in the form of short cylinders were studied with magnetic field perpendicular to their axis. Shielding properties of single and double layer shields were compared at various temperatures between 50 and 80 K. Shielding factor up to 98% was achieved. The benefit of lower temperatures is particularly visible at higher magnetic fields. Trends of shielding characteristics modeled as a function of external magnetic field strength with finite element models using COMSOL match with those of the experimental observations.Index Terms-Comsol model, Hall sensor, Helium gas, magnetic field, magnetic shielding, shielding factor, YBCO tape. 1051-8223

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“…In recent years, attempts are made to study the mechanical and electromagnetic behaviors of superconductors in different geometries by numerical simulations [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. The extreme complexity of hierarchical geometry and structure of a Nb 3 Sn strand and CICC requires a special concern for the modeling of the strand entity.…”

Section: Introductionmentioning

confidence: 99%

A 3D Model on the Electromechanical Behavior of a Multifilament Twisted Nb3Sn Superconducting Strand

Gao

2015

J Supercond Nov Magn

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At present, conventional low-temperature superconductors such as Nb 3 Sn strands have been extensively applied in high-energy and nuclear physics, as well as in magnetic resonance imaging systems. In this paper, a 3D finite element model considering sophisticated structure of superconducting filament bundles and metal matrix elements is built to deal with the electromagnetic behaviors of a Nb 3 Sn strand exposed to tension and bending loads. The mechanical constitutive relations of filament bundles and metal matrix are described with elastic and elasto-plastic axial stress-strain curve, respectively. The voltage-current characteristic of the metal matrix elements is determined with the Ohmic law, and that of the superconducting filaments follows the n power relation. The stress-strain state is simulated and then implemented in the electromagnetic model, through the scaling law of ITER Nb 3 Sn strand. We find that the plasticity of copper and the twist filaments cause the enhanced inhomogeneous strain profile in a strand composite, compared to the strain profile in a strand with untwisted filaments. We also discuss the current/field profile, critical current degradation, and AC loss in the strand composite under the tension and bending loads.

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Analysis of Current and Magnetic Distributions in REBCO Superconducting Coated Conductors in Self- and External Fields

Cited by 8 publications

References 18 publications

Effect of MgB₂ additives on structure, electrical and thermal properties of Eu₁Ba₂Cu₃O₇

Effect of MgB₂ additives on structure, electrical and thermal properties of Eu₁Ba₂Cu₃O₇

Magnetic Shielding Characteristics of Second Generation High Temperature Superconductors at Variable Temperatures Obtained by Cryogenic Helium Gas Circulation

A 3D Model on the Electromechanical Behavior of a Multifilament Twisted Nb3Sn Superconducting Strand

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Analysis of Current and Magnetic Distributions in REBCO Superconducting Coated Conductors in Self- and External Fields

Cited by 8 publications

References 18 publications

Effect of MgB2 additives on structure, electrical and thermal properties of Eu1Ba2Cu3O7

Effect of MgB2 additives on structure, electrical and thermal properties of Eu1Ba2Cu3O7

Magnetic Shielding Characteristics of Second Generation High Temperature Superconductors at Variable Temperatures Obtained by Cryogenic Helium Gas Circulation

A 3D Model on the Electromechanical Behavior of a Multifilament Twisted Nb3Sn Superconducting Strand

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Effect of MgB₂ additives on structure, electrical and thermal properties of Eu₁Ba₂Cu₃O₇

Effect of MgB₂ additives on structure, electrical and thermal properties of Eu₁Ba₂Cu₃O₇