Development of Ag-Sheathed Bi2223 Superconducting Wires and Their Applications

Hayashi, Kazuhiko; Sato, K; Ohkura, K.; Shibuta, Nobuhiro; Ohmatsu, K.; Kaneko, Tetsuyuki; Sashida, T.; Ueyama, M.; Fujikami, J.; Ito, M.; Kobayashi, Shinichi; Saga, Nobuhiro; Hahakura, S.

doi:10.1007/978-1-4757-9056-6_105

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Bi-2223 has had 10 years of industrial development and is also still developing strongly in attaining higher current density, reducing cost and in becoming more mechanically robust [86][87][88] . The complexity of its microstructure and the interactions between fabrication and basic materials issues is slowly becoming clear 89 , not least because multiple companies worldwide are selling the conductor in competition with each other.…”

Section: Materials Fabrication Considerationsmentioning

confidence: 99%

High-Tc superconducting materials for electric power applications

Larbalestier

Gurevich

Feldmann

et al. 2001

Nature

1,215

764

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Large-scale superconducting electric devices for power industry depend critically on wires with high critical current densities at temperatures where cryogenic losses are tolerable. This restricts choice to two high-temperature cuprate superconductors, (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Ox, and possibly to MgB2, recently discovered to superconduct at 39 K. Crystal structure and material anisotropy place fundamental restrictions on their properties, especially in polycrystalline form. So far, power applications have followed a largely empirical, twin-track approach of conductor development and construction of prototype devices. The feasibility of superconducting power cables, magnetic energy-storage devices, transformers, fault current limiters and motors, largely using (Bi,Pb)2Sr2Ca2Cu3Ox conductor, is proven. Widespread applications now depend significantly on cost-effective resolution of fundamental materials and fabrication issues, which control the production of low-cost, high-performance conductors of these remarkable compounds.

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Section: Materials Fabrication Considerationsmentioning

confidence: 99%

High-Tc superconducting materials for electric power applications

Larbalestier

Gurevich

Feldmann

et al. 2001

Nature

1,215

764

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“…Tapes "A" through "D" are nonbarrier, several hundred meter long tapes with uniform critical current along the entire length. Tapes "A" and "B" are previous type tapes as described in [3]. Tapes "C" and "D" are recently produced conductors with higher SC-volume fraction and higher critical current.…”

Section: Methodsmentioning

confidence: 98%

“…Twisting of the filaments and use of high resistive matrix, common techniques for AC-loss reduction, are adaptable for silver sheathed Bi-2223 tapes due to their multi-filamentary architecture. Twisted Bi-2223 wires were developed by many groups, but without substantial advantage in AC losses against untwisted wires under the large amplitude and frequency of commercial AC magnetic field that is generated in transmission power cables [1]- [3]. A novel structure with the inter-filament resistive ceramic barrier has been proposed as a solution for the problems [1], [4]- [8].…”

Section: Introductionmentioning

confidence: 99%

Development of Bi-2223 Superconducting Wires for AC Applications

Ayai

Hayashi

Yasuda³

2005

IEEE Trans. Appl. Supercond.

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Advanced silver sheathed Bi-2223 superconducting tapes have been developed for AC-applications such as electric power cables and transformers, which require reduced AC-losses. Twisted multi-filament and inter-filament resistive barriers were applied to eliminate the electromagnetic inter-filament coupling, which is the primary mechanism in enhancing AC-losses. A multi-filamentary wire with a honeycomb type thin ceramic barrier was designed and manufactured in an attempt to realize low AC-losses without degrading the transport properties of the conductor. AC-losses of the manufactured wire were reduced drastically when compared to those of conventional wires without barriers. Using the measured properties of the manufactured wire as a basis, a design study along with projected AC-losses for a superconducting power cable is presented.

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Re-evaluation of the intercept temperature for HTS current leads based on practical and economical considerations

Rey

1998

Cryogenics

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Development of Ag-Sheathed Bi2223 Superconducting Wires and Their Applications

Cited by 3 publications

References 2 publications

High-Tc superconducting materials for electric power applications

High-Tc superconducting materials for electric power applications

Development of Bi-2223 Superconducting Wires for AC Applications

Re-evaluation of the intercept temperature for HTS current leads based on practical and economical considerations

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