Development of Bi-2212 round wires for high field magnet applications

Miao, Hanping; Huang, Y.; Meinesz, M.; Hong, Seung Pyo; Parrell, J.A.

doi:10.1063/1.4712111

Cited by 15 publications

(13 citation statements)

References 6 publications

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“…Bi-2212/Ag round wires were fabricated by the traditional powder-in-tube and multifilament restack techniques and the detail is described in our earlier papers [3,7]. In this work, Nexans granulate powder with the optimized composition of Bi 2.17 Sr 1.94 Ca 0.89 Cu 1.98 Ox was used for all wire fabrication.…”

Section: Methodsmentioning

confidence: 99%

“…High T c superconductor Bi 2 Sr 2 CaCu 2 O 8-x (Bi-2212) wire has demonstrated many attractive features, such as high irreversibility field (B irr > 100 T), isotropic electromagnetic performance, solenoid layer winding, and compatibility with conventional cabling and strand insulation methods. All of these advantages make it easy to adapt the well established Nb 3 Sn technology and make Bi-2212 one of most promising materials to enable superconducting magnets > 25 T range [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Bi-2212 round wire development for high field applications

Miao¹,

Huang²,

Hong³

et al. 2014

J. Phys.: Conf. Ser.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bi-2212 round wire development for high field applications

Miao¹,

Huang²,

Hong³

et al. 2014

J. Phys.: Conf. Ser.

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“…Nonetheless, small solenoid demonstration coils have been fabricated and successfully tested at various institutes [118][119][120], demonstrating that the use of Bi-2212 for high-field magnets is indeed feasible. A recent breakthrough within the US Very High Field Superconducting Magnet Collaboration (VHFSMC) [37], which focused on determining the feasibility of Bi-2212 for very-high-field magnet applications, highlighted the main current-blocking mechanism in round wire Bi-2212.…”

Section: Bi-2212mentioning

confidence: 99%

“…The Bi-2212 Strand and Cable Collaboration (BSCCo) [122] in the US, which is a continuation of the VHFSMC is, in close collaboration with industry, trying to mitigate the formation of bubbles through densification, and removal of the contaminants. Bi-2212 densification studies have increased the J E in short wire lengths to beyond the record levels, thereby approaching the 600-800 A/mm 2 range that is needed for successful application in high-field magnets [118,123]. Densification could, by removal of the local stress concentrations due to the presence of voids, also positively alter the behavior of Bi-2212 under mechanical loads (see Subsec.…”

Section: Bi-2212mentioning

confidence: 99%

Superconducting Materials and Conductors: Fabrication and Limiting Parameters

Bottura

Godeke

2012

Rev. Accl. Sci. Tech.

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Superconductivity is the technology that enabled the construction of the most recent generation of high-energy particle accelerators, the largest scientific instruments ever built. In this review we trace the evolution of superconducting materials for particle accelerator magnets, from the first steps in the late 1960s, through the rise and glory of Nb-Ti in the 1970s, till the 2010s, and the promises of Nb 3 Sn for the 2020s. We conclude with a perspective on the opportunities for high-temperature superconductors (HTSs). Many such reviews have been written in the past, as witnessed by the long list of references provided. In this review we put particular emphasis on the practical aspects of wire and tape manufacturing, cabling, engineering performance, and potential for use in accelerator magnets, while leaving in the background matters such as the physics of superconductivity and fundamental material issues.

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“…Researches on Bi-based superconductors Bi 2 Sr 2 Ca n − 1 Cu n O x (n = 1, 2, 3) discovered by Maeda et al [1] increase [2][3][4][5][6][7] day by day owing to the fact that the interest in both the fundamental research and applications in technology and industry of these materials in the last decades stems from their remarkable smaller power losses, high current and magnetic field carrying capacity, optical and electronic properties [8][9][10][11]. For years, researchers have tried to improve their superconducting properties by using several techniques [12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Gd Addition Added on Magnetic and Structural Properties of Bi1.8Pb0.35Sr1.9Ca2.1Cu3Gd x O y Superconductors by ac Susceptibility

Yıldırım

Zalaoğlu

Akdoğan

et al. 2011

J Supercond Nov Magn

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This study reports the effect of Gd addition on magnetic and structural properties of Bi 1.8 Pb 0.35 Sr 1.9 Ca 2.1 Cu 3 Gd x O y superconductor with x = 0, 0.1, 0.2, 0.3, 0.4 and 0.5 by means of ac susceptibility measurements at various ac fields (ranging from 270 to 1352 A/m) and scanning electron microscopy (SEM) images. Critical onset (T on c ) and loss peak temperatures (T p ) were qualitatively estimated from the ac susceptibility curves. The peak temperature at zero acmagnetic field (T p0 ) and intergrain critical current densities (J c ) were theoretically calculated from the ac susceptibility plots via the critical state models. The results show that peak temperatures and critical current densities were found to decrease with increasing Gd addition. Moreover, using a self-field approximation together with J c dependence on temperature, the characteristic length (L c ) associated with the pinning force is estimated to be approximately the same as the average grain size (R g ) of the pinning center because of the linear decrease in J c with increasing temperature. Surface morphology and grain connectivity of the samples were also obtained to degrade with increase in the Gd addition from SEM investigations.

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Development of Bi-2212 round wires for high field magnet applications

Cited by 15 publications

References 6 publications

Bi-2212 round wire development for high field applications

Bi-2212 round wire development for high field applications

Superconducting Materials and Conductors: Fabrication and Limiting Parameters

Investigation of Gd Addition Added on Magnetic and Structural Properties of Bi1.8Pb0.35Sr1.9Ca2.1Cu3Gd x O y Superconductors by ac Susceptibility

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