Recent Developments in 2G HTS Coil Technology

Hazelton, D.W.; Selvamanickam, V.; Duval, Jean-Marc; Larbalestier, D. C.; Markiewicz, W.D.; Weijers, H.W.; Holtz, R.L.

doi:10.1109/tasc.2009.2018791

Cited by 179 publications

(86 citation statements)

References 10 publications

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“…Short length defects along REBCO coated conductors have been seen previously in microstructural and in magneto optical investigations on several samples and seem to be endemic at the present time 6 . This layer-wound coil and earlier prototype pancake-wound coils 10,11 demonstrate that REBCO coated conductors have developed into a suitable basis for a superconducting magnet technology that allows major advances in magnetic field generation at 4. This work was supported by the NSF under DMR award 0654118.…”

mentioning

confidence: 81%

35.4 T field generated using a layer-wound superconducting coil made of (RE)Ba2Cu3O7−x (RE = rare earth) coated conductor

Trociewitz

Dalban-Canassy

Hannion

et al. 2011

Applied Physics Letters

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To explore the limits of layer wound (RE)Ba 2 Cu 3 O 7-x (REBCO, RE = Rare Earth) coils in a high magnetic field environment > 30 T, a series of small insert coils have been built and characterized in background fields. One of the coils repeatedly reached 35.4 T using a single ~100 m length of REBCO tape wet wound with epoxy and nested in a 31 T background magnet. The coil was quenched safely several times without degradation. Contributing to the success of this coil was the introduction of a thin polyester film that surrounded the conductor. This approach introduces a weak circumferential plane in the coil pack that prevents conductor delamination that has caused degradation of several epoxy impregnated coils previously made by this and other groups.The cuprate based high temperature superconductor (RE)Ba 2 Cu 3 O 7-x (REBCO, RE = Rare Earth), has the capability to substantially transform the technology of high field magnet systems. So far, the low temperature superconductors Nb-Ti and Nb 3 Sn have been used for virtually all superconducting high field magnets. Their maximum field, however, is limited by their upper critical fields (H c2 ) of about 15 T for Nb-Ti and 30 T for Nb 3 Sn, which limits their highest practical field to about 23.5 T 1 . This limit is imposed by the rapid decrease in critical current density J c as H c2 is approached. By contrast, REBCO has an H c2 that exceeds 100 T at 4.2 K, removing the H c2 and J c limit that restricts usage of Nb 3 Sn in highfield magnet systems. One of the goals at the NHMFL is to develop the necessary technology for the next generation of high-field magnets including Nuclear Magnetic Resonance (NMR) quality magnets. To reduce the number of resistive joints and achieve the required field homogeneity for NMR, layer-winding

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mentioning

confidence: 81%

35.4 T field generated using a layer-wound superconducting coil made of (RE)Ba2Cu3O7−x (RE = rare earth) coated conductor

Trociewitz

Dalban-Canassy

Hannion

et al. 2011

Applied Physics Letters

Self Cite

157

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“…The CC tapes exhibited a much higher axial tensile stress tolerance of more than 600 MPa and bending deformation tolerance as compared with the 1G and LTS wires [3,9], [53]. Utilizing these properties, the current density in the superconducting coils can be increased resulting to a much smaller and compact device, [54].…”

Section: Delamination Behaviors Of CC Tapes Under Transverse Stressmentioning

confidence: 99%

“…These superior properties lead to the expectations of CC tapes to be adopted in magnets, SMES, rotating machines, cables and even wide range of applications. With the achievement of a km length CC tapes with higher critical current density, J c , coils for motors, accelerators, high field magnets, and other superconducting devices are already being tested and studied [1][2][3][4][5][6][7]. For such applications, in which coil is one of the major component technology, the electromechanical property (EMP) evaluation is one of the foremost things to do to ensure its performance during fabrication and operation.…”

Section: Introductionmentioning

confidence: 99%

Review of progress in electromechanical properties of REBCO coated conductors for electric device applications

Shin¹,

Dedicatoria²

2014

Progress in Superconductivity and Cryogenics

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“…Application of HTS to solenoids for very high fields is being investigated 30) . An insert coil with a 10 cm bore has been made from Y-123 tape: it consists of a dry-wound double pancake that runs at 4.2 K in a background field of 19 T to produce a total field of 26.9 T -a record performance, both for the field produced by a superconducting magnet and for the field produced by an HTS coil 31) . HTS is thus increasingly considered to replace resistive insert coils in hybrid high-field magnets.…”

Section: Magnetsmentioning

confidence: 99%

Application of High <i>T</i><sub>c</sub> Superconductor in Accelerators: Status and Prospects

Ballarino

2009

TEION KOGAKU

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Synopsis:With the continuing improvement of properties of High T c Superconductors (HTS), their application to accelerator technology is becoming increasingly attractive. While the medium to long-term goal for their use in this field will be for high field magnets, the materials now available enable a number of specific applications which benefit from their characteristics and make them a valid alternative to conventional Low T c Superconductors (LTS). If devices for electrical utilities generally seek to use nitrogen as cryogen, large superconducting accelerators rely on helium cryogenics, and allow operating at lower temperatures with consequent gains in electrical performance and temperature margin. After an overview of commercial HTS materials, applications of HTS to accelerators are presented, with examples of present and future use of HTS in the Large Hadron Collider.

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Recent Developments in 2G HTS Coil Technology

Cited by 179 publications

References 10 publications

35.4 T field generated using a layer-wound superconducting coil made of (RE)Ba2Cu3O7−x (RE = rare earth) coated conductor

35.4 T field generated using a layer-wound superconducting coil made of (RE)Ba2Cu3O7−x (RE = rare earth) coated conductor

Review of progress in electromechanical properties of REBCO coated conductors for electric device applications

Application of High <i>T</i><sub>c</sub> Superconductor in Accelerators: Status and Prospects

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