Comparison of Electromechanical Properties and Lattice Distortions of Different Cuprate High-Temperature Superconductors

Scheuerlein, C.; Bjoerstad, R.; Grether, A; Rikel, M.O.; Hudspeth, Jessica; Sugano, M.; Ballarino, A.; Bottura, L.

doi:10.1109/tasc.2016.2542284

Cited by 7 publications

(4 citation statements)

References 34 publications

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“…On the other hand, Dietderich et al [42] has measured a much higher stress limit of 60 MPa on a Rutherford cable in a fiberglass-reinforced epoxy matrix. Bi-2223 tapes, which have similar tension behavior of Bi-2212 wires, can withstands transverse pressure of about 70 MPa [43]. In round Nb 3 Sn wires it was found that the degradation of J c happens already at few MPa, while in hydrostatic conditions, for example if the wire is surrounded by resin, as is the case of impregnated cables, the critical stress is much higher (40 MPa) [44].…”

Section: A Transverse Stressmentioning

confidence: 95%

Design Study of a 50-kA React-and-Wind Bi-2212 Cable for Fusion Magnet

Kang

Uglietti

Song

2020

IEEE Trans. Appl. Supercond.

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In the last few years the current density of Bi-2212 wires has been greatly improved by filament densify technologies. One further step toward applications in fusion magnets is to design a high current cable, which must overcome the drawbacks of Bi-2212 wire: brittleness and complex heat treatment process. In this paper, React-and-Wind flat cables are proposed. With react-and-wind technique, a larger choice of jacket and stabilizer materials are available including stainless steel and copper, which are widely used for superconducting cables but are not directly usable for Wind-and-React Bi-2212 cables due to their reaction during heat treatment. Two wires, representing respectively bottom and top performance of state-of-art wires, are considered. Several cable layouts are studied considering dimension, compaction rate and transverse mechanical pressure. Materials for quench protection and jacket materials are also discussed.

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Section: A Transverse Stressmentioning

confidence: 95%

Design Study of a 50-kA React-and-Wind Bi-2212 Cable for Fusion Magnet

Kang

Uglietti

Song

2020

IEEE Trans. Appl. Supercond.

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“…Coated conductors have set new records also in term of longitudinal tensile critical strain, with values from 0.4% to 0.7% [58], depending on the manufacturer, and even 1% has been reported on AMSC tapes [38]. In longitudinal compression coated conductors can withstand -1.2% strains [65] without reduction of Ic (at low temperature, in field).…”

Section: Electromechanical Characteristicsmentioning

confidence: 99%

A review of commercial high temperature superconducting materials for large magnets: from wires and tapes to cables and conductors

Uglietti

2019

Supercond. Sci. Technol.

181

123

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High Temperature Superconducting (HTS) materials have the potential to generate magnetic field beyond the level obtainable with Low Temperature Superconducting (LTS). This review reports the past and present R&D on HTS cables and conductors for high field tokamaks, accelerator dipoles and large solenoids. Among the HTS wires and tapes available commercially, coated conductor tapes are the most appealing because of the outstanding critical strength and large improvement margin. Limitations are the weakness against peeling and shearing and the short piece length. The prices for technical superconductors are reviewed because they play an important role in large projects; moreover the perspective of industrial production of HTS wires and tapes is discussed considering the historical development of the LTS wire market. Various designs have been proposed for HTS cables and conductors: some are better suited for soft materials, while others can exploit the anisotropy of coated conductors (by aligning the tape with the field), providing the highest current density. The last decade has seen an increase in the size and complexity of the prototypes; however some peculiar features of HTS, such as high stability margin and high mechanical limits, have not yet been fully incorporated in the designs: for example the transposition requirements for HTS have not yet been studied in detail. Several facts indicate that tapes (even if anisotropic) can be used for manufacturing cables and magnets of any size and have advantages with respect to round wires.

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“…Finally, this choice provides complementarity among the EuCARD2 and USbased programs, where BSCCO-2212 is supported by the US-DOE Conductor Development Program [34] and the Bismuth Strand and Cable Collaboration (BSCCo) [5]. EuCARD2 (through CERN) has provided precursor powders (from Nexans SuperConductors) for the fabrication of BSCCO-2212 wires, participated to the optimization of the precursor and to the analysis and characterization of the wire performance [29], [35].…”

Section: Hts Materials Focusmentioning

confidence: 99%

Advances in the Development of a 10-kA Class REBCO Cable for the EuCARD2 Demonstrator Magnet

Badel¹,

Ballarino²,

Barth³

et al. 2016

IEEE Trans. Appl. Supercond.

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Abstract-The objective of the EuCARD2 WP10 (Future Magnets) research activity is to demonstrate HTS magnet technology for accelerator applications, by building a short demonstrator dipole with an aperture of 40 mm, operating field of 5 T, and understood field quality. One of the magnet requirements is of small inductance, for use in long magnet strings, hence the superconducting cable must have large current carrying capacity, in the range of 10 kA at the operating conditions of 4.2 K and 5 T. An initial down-selection of the cable material and geometry resulted in the choice of REBCO tapes assembled in a Roebel cable as baseline layout. In this paper we describe the requirements derived from magnet design, the selection process that led to the choice of material and geometry, the reference design of the cable, and its options. Activities have started to address fundamental issues, such as tape performance and tape processing through the cable construction, and key performance parameters such as cable critical current under stress or magnetization. Here we report the main highlights from this work.

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Comparison of Electromechanical Properties and Lattice Distortions of Different Cuprate High-Temperature Superconductors

Cited by 7 publications

References 34 publications

Design Study of a 50-kA React-and-Wind Bi-2212 Cable for Fusion Magnet

Design Study of a 50-kA React-and-Wind Bi-2212 Cable for Fusion Magnet

A review of commercial high temperature superconducting materials for large magnets: from wires and tapes to cables and conductors

Advances in the Development of a 10-kA Class REBCO Cable for the EuCARD2 Demonstrator Magnet

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