Comparison of growth texture in round Bi2212 and flat Bi2223 wires and its relation to high critical current density development

Kametani, F.; Jiang, J.; Matras, M.; Abraimov, D.; Hellstrom, E. E.; Larbalestier, D. C.

doi:10.1038/srep08285

Cited by 81 publications

(79 citation statements)

References 44 publications

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“…Many experiments with Bi-2212 whiskers [43] give the intragrain critical current density similar to values in the sixth column of Table I. At the same time these values are a few orders of magnitude greater than the transport critical current density of Bi-2212 wires [44] that is strongly limited by weak-linked grain boundaries.…”

Section: Discussionmentioning

confidence: 48%

Analysis of magnetization loops of electrospun nonwoven superconducting fabrics

Zeng

Karwoth

Koblischka

et al. 2017

Phys. Rev. Materials

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Networks of superconducting Bi 2 Sr 2 CaCu 2 O 8 (Bi-2212) nanowires were fabricated by the electrospinning technique. The nanowires have a diameter of the order of 150-200 nm and lengths up to the micrometer range and form a nonwoven, fabric-like network with numerous interconnections enabling a current flow between the nanowires. The porosity of this nanowire network is 0.9928. Therefore, this material represents a novel class of ultraporous high-temperature superconductors. The magnetizations of the nanowire networks [M(T ) and M(H )] were recorded by SQUID magnetometry. The magnetic properties were analyzed using the extended critical state model (ECSM). It is supposed that the averaged diameter of the nanowires rules the magnetic field dependence of the critical current density of the nanowire network. Single nanowires have remarkably high values of the critical current density of 1.04 × 10 7 A/cm 2 at 5 K. The macroscopic critical current density less than ∼0.05 A/cm

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Section: Discussionmentioning

confidence: 48%

Analysis of magnetization loops of electrospun nonwoven superconducting fabrics

Zeng

Karwoth

Koblischka

et al. 2017

Phys. Rev. Materials

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“…The average grain size of the Bi-2212 grains is ∼37 nm. The interconnection between the individual grains is an important issue for the fabrication of conductors from this material, 12 and the field dependence of these contacts governs the resulting magnetic properties. Finally, Fig.…”

Section: Experimental Meansmentioning

confidence: 99%

Magnetic properties of electrospun non-woven superconducting fabrics

et al. 2016

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Non-woven superconducting fabrics were prepared by the electrospinning technique, consisting of Bi2Sr2CaCuO8 (Bi-2212) nanowires. The individual nanowires have a diameter of ∼150-200 nm and lengths of up to 100 μm. A non-woven fabric forming a network with a large number of interconnects results, which enables the flow of transport currents through the entire network. We present here magnetization data [M(T) and M(H)-loops] of this new class of superconducting material. The magnetic properties of these nanowire networks are discussed including the irreversibility line and effects of different field sweep rates, regarding the microstructure of the nanowire networks investigated by electron microscopy.

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“…They have a much higher carrier mass anisotropy than YBCO, their flux-line lattices melt at fields and temperatures much lower than YBCO [17] and the irreversibility fields ( Irr ) in BiSCCO are significantly lower than YBCO at temperatures above 10 K [18]. Nevertheless, although an extrapolation of both upper critical field ( c2 ) and Irr to 0 K for BiSCCO has a large uncertainty, the critical fields for Bi2Sr2CaCu2O8 and Bi2Sr2Ca2Cu3O10 are estimated to be of the order of a few hundred tesla, which is clearly sufficient for high-field applications [14,[18][19][20]. Page 3 of 46 AUTHOR SUBMITTED MANUSCRIPT -SUST-102544.R1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 A c c e p t e d M a n u s c r i p t…”

Section: Introductionmentioning

confidence: 99%

“…Useful c values have already been achieved in both Bi2Sr2CaCu2O8 and Bi2Sr2Ca2Cu3O10 conductors. Bi2Sr2CaCu2O8 can produce high c in round wire form, due to its quasi-biaxial textured grain structure [19,24,25].…”

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confidence: 99%

The cause of ‘weak-link’ grain boundary behaviour in polycrystalline Bi₂Sr₂CaCu₂O₈and Bi₂Sr₂Ca₂Cu₃O₁₀superconductors

Wang

Raine

Hampshire

2018

Supercond. Sci. Technol.

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Publisher's copyright statement:Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Manuscript version: Accepted Manuscript Accepted Manuscript is "the version of the article accepted for publication including all changes made as a result of the peer review process, and which may also include the addition to the article by IOP Publishing of a header, an article ID, a cover sheet and/or an 'Accepted Manuscript' watermark, but excluding any other editing, typesetting or other changes made by IOP Publishing and/or its licensors"This Accepted Manuscript is © 2017 IOP Publishing Ltd.As the Version of Record of this article is going to be / has been published on a gold open access basis under a CC BY 3.0 licence, this Accepted Manuscript is available for reuse under a CC BY 3.0 licence immediately.Everyone is permitted to use all or part of the original content in this article, provided that they adhere to all the terms of the licence https://creativecommons.org/licences/by/3.0Although reasonable endeavours have been taken to obtain all necessary permissions from third parties to include their copyrighted content within this article, their full citation and copyright line may not be present in this Accepted Manuscript version. Before using any content from this article, please refer to the Version of Record on IOPscience once published for full citation and copyright details, as permissions may be required. All third party content is fully copyright protected and is not published on a gold open access basis under a CC BY licence, unless that is specifically stated in the figure caption in the Version of Record.View the article online for updates and enhancements. AbstractThe detrimental effects of grain boundaries have long been considered responsible for the low critical current densities ( c ) in high temperature superconductors. In this paper, we apply the quantitative approach used to identify the cause of the 'weak-link' grain boundary behaviour in YBa2Cu3O7 [1], to the Bi2Sr2CaCu2O8 and Bi2Sr2Ca2Cu3O10 materials that we have fabricated. Magnetic and transport measurements are used to characterise the grain and grain boundary properties of micro-and nanocrystalline material. Magnetisation measurements on all nanocrystalline materials show non-Bean-like behaviour and are consistent with sur...

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Comparison of growth texture in round Bi2212 and flat Bi2223 wires and its relation to high critical current density development

Cited by 81 publications

References 44 publications

Analysis of magnetization loops of electrospun nonwoven superconducting fabrics

Analysis of magnetization loops of electrospun nonwoven superconducting fabrics

Magnetic properties of electrospun non-woven superconducting fabrics

The cause of ‘weak-link’ grain boundary behaviour in polycrystalline Bi₂Sr₂CaCu₂O₈and Bi₂Sr₂Ca₂Cu₃O₁₀superconductors

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Comparison of growth texture in round Bi2212 and flat Bi2223 wires and its relation to high critical current density development

Cited by 81 publications

References 44 publications

Analysis of magnetization loops of electrospun nonwoven superconducting fabrics

Analysis of magnetization loops of electrospun nonwoven superconducting fabrics

Magnetic properties of electrospun non-woven superconducting fabrics

The cause of ‘weak-link’ grain boundary behaviour in polycrystalline Bi2Sr2CaCu2O8and Bi2Sr2Ca2Cu3O10superconductors

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The cause of ‘weak-link’ grain boundary behaviour in polycrystalline Bi₂Sr₂CaCu₂O₈and Bi₂Sr₂Ca₂Cu₃O₁₀superconductors