Study on the High Temperature Pressure Charging Procedure of Bi-2223/Ag Superconducting Tapes

Qu, Timing; Gu, Chen; Huang, Kun; Song, Xiaozhen; Zhang, Pan; Han, Z.

doi:10.1109/tasc.2010.2091484

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…Since a high critical temperature T C superconductor was discovered by Bednorz and Müller, 1) approximately three decades have been spent on developing high-T C superconducting wires. First-generation (1G) Bi2223 superconducting silver sheath tape wires have been commercialized, 2,3) and second-generation (2G) REBa 2 Cu 3 O y (REBCO, RE: rare-earth elements) superconducting wires have started to be produced by several companies. [4][5][6][7][8][9][10] However, they are too expensive to enable the industrial manufacture of superconducting equipment, which is one of the reasons why no superconducting equipment has yet been realized.…”

Section: Introductionmentioning

confidence: 99%

Possibility of material cost reduction toward development of low-cost second-generation superconducting wires

Ichinose

Horii

Doi

2017

Jpn. J. Appl. Phys.

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Two approaches to reducing the material cost of second-generation superconducting wires are proposed in this paper: (1) instead of the electrical stabilizing layers of silver and copper presently used on the superconducting layer, a Nb-doped SrTiO3 conductive buffer layer and cube-textured Cu are proposed as an advanced architecture, and (2) the use of an electromagnetic (EM) steel tape as a metal substrate of coated conductors in a conventional architecture. In structures fabricated without using electrical stabilizing layers on the superconducting layer, the critical current density achieved at 77 K in a self-field was approximately 2.6 MA/cm2. On the other hand, in the case of using EM steel tapes, although the critical current density was far from practical at the current stage, the biaxial alignment of YBa2Cu3Oy (YBCO) and buffer layers was realized without oxidation on the metal surface. In this study, the possibility of material cost reduction has been strongly indicated toward the development of low-cost second-generation superconducting wires in the near future.

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Section: Introductionmentioning

confidence: 99%

Possibility of material cost reduction toward development of low-cost second-generation superconducting wires

Ichinose

Horii

Doi

2017

Jpn. J. Appl. Phys.

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Characterization of Multi-field Behaviors on Fatigue Damage Due to High Cyclic Loading in YBCO-Coated Conductors Fabricated by the IBAD-PLD Technology

Guan

2022

J Low Temp Phys

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Mechanical Analysis and Measurements of a Multicomponent NbTi/Cu Superconducting Magnets Structure for the Fully Superconducting Electron Cyclotron Resonance Ion Source

Guan

Gao

Yang

et al. 2016

Chinese Phys. Lett.

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A fully superconducting electron cyclotron resonance (ECR) ion source (SECRAL II) is currently being built in the Institute of Modern Physics, Chinese Academy of Sciences. Its key components are three superconducting solenoids (Nb-Ti/Cu) and six superconducting sextupoles (Nb-Ti/Cu). Different from the conventional superconducting ECR magnetic structure, the SECRAL II includes three superconducting solenoid coils that are located inside the superconducting sextupoles. The SECRAL II can significantly reduce the interaction forces between the sextupole and the solenoids, and the magnets can also be more compact in size. For this multi-component SECRAL II generating its self field of ~8 T and being often exposed to the high self field, the mechanical analysis has become the main issue to keep their stress at < 200 MPa on coils. The analytical and experimental results in mechanics are presented in the SECRAL II structure. To improve the accuracy and efficiency of analysis, according to the composite rule of micromechanics, the equivalent uniform windings are used to simulate the epoxy-impregnated Nb-Ti/Cu coils. In addition, using low temperature strain gauges and a wireless fast strain acquisition system, a fundamental experiment on the strains developments of a sextupole is reported. Finally, based on our analysis, the stresses and deformations for its assembly of each SECRAL II coil will be further optimized.

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Study on the High Temperature Pressure Charging Procedure of Bi-2223/Ag Superconducting Tapes

Cited by 4 publications

References 10 publications

Possibility of material cost reduction toward development of low-cost second-generation superconducting wires

Possibility of material cost reduction toward development of low-cost second-generation superconducting wires

Characterization of Multi-field Behaviors on Fatigue Damage Due to High Cyclic Loading in YBCO-Coated Conductors Fabricated by the IBAD-PLD Technology

Mechanical Analysis and Measurements of a Multicomponent NbTi/Cu Superconducting Magnets Structure for the Fully Superconducting Electron Cyclotron Resonance Ion Source

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