Superconducting properties and mechanical strength of MgO fibres reinforced bulk Bi-2212 superconductor ceramics

Fabrication of bulk superconductors with optimum superconducting properties and stable mechanical behaviour is essential for the application of high-temperature superconducting ceramics in power engineering. In such application, high critical current density Jc and excellent mechanical stability are...

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Main Authors: Hamid N.A., Shamsudin N.F., Seec K.W.
Other Authors: 6604077116
Format: Conference paper
Published: 2023
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Institution: Universiti Tenaga Nasional
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spelling my.uniten.dspace-308682023-12-29T15:54:58Z Superconducting properties and mechanical strength of MgO fibres reinforced bulk Bi-2212 superconductor ceramics Hamid N.A. Shamsudin N.F. Seec K.W. 6604077116 35070368100 34873681800 Bi-2212 high-temperature superconductor Cryogenic temperature High current density Mechanical strength MgO fibres Bismuth compounds Ceramic superconductors Compression testing Cryogenics Fibers High temperature superconductors Mechanical properties Mechanical stability Sol-gel process Superconducting wire Superconductivity Tensile strength Textures Bi-2212 high-temperature superconductor Cryogenic temperature High current density Mechanical strength MgO fibres High temperature engineering Fabrication of bulk superconductors with optimum superconducting properties and stable mechanical behaviour is essential for the application of high-temperature superconducting ceramics in power engineering. In such application, high critical current density Jc and excellent mechanical stability are among the most important properties. In this study, 3-8 wt-%MgO fibres are added to Bi-2212 superconductor powder. The MgO fibres are prepared in-house using the sol-gel route. The Bi-2212/MgO fibres compounds are heat treated, followed by partial-melting and slow-cooling. The mechanical strength of the samples is studied by conducting the compression test. From the results, the addition of 5%MgO fibres is found to improve the texture of the Bi-2212/MgO fibres ceramics without degrading the transition temperature Tc if compared with the other samples. In addition, the Jc values are enhanced due to the addition of the MgO fibres that significantly improved the texture of the compounds and the grain connectivity within the grains. Significantly higher stiffness, strength and toughness are observed in MgO added samples at room temperature. � W. S. Maney & Son Ltd. 2009. Final 2023-12-29T07:54:58Z 2023-12-29T07:54:58Z 2009 Conference paper 10.1179/143307509X441612 2-s2.0-70149119023 https://www.scopus.com/inward/record.uri?eid=2-s2.0-70149119023&doi=10.1179%2f143307509X441612&partnerID=40&md5=0b8742bb94265a1b7305489695123925 https://irepository.uniten.edu.my/handle/123456789/30868 13 3 379 381 Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic Bi-2212 high-temperature superconductor
Cryogenic temperature
High current density
Mechanical strength
MgO fibres
Bismuth compounds
Ceramic superconductors
Compression testing
Cryogenics
Fibers
High temperature superconductors
Mechanical properties
Mechanical stability
Sol-gel process
Superconducting wire
Superconductivity
Tensile strength
Textures
Bi-2212 high-temperature superconductor
Cryogenic temperature
High current density
Mechanical strength
MgO fibres
High temperature engineering
spellingShingle Bi-2212 high-temperature superconductor
Cryogenic temperature
High current density
Mechanical strength
MgO fibres
Bismuth compounds
Ceramic superconductors
Compression testing
Cryogenics
Fibers
High temperature superconductors
Mechanical properties
Mechanical stability
Sol-gel process
Superconducting wire
Superconductivity
Tensile strength
Textures
Bi-2212 high-temperature superconductor
Cryogenic temperature
High current density
Mechanical strength
MgO fibres
High temperature engineering
Hamid N.A.
Shamsudin N.F.
Seec K.W.
Superconducting properties and mechanical strength of MgO fibres reinforced bulk Bi-2212 superconductor ceramics
description Fabrication of bulk superconductors with optimum superconducting properties and stable mechanical behaviour is essential for the application of high-temperature superconducting ceramics in power engineering. In such application, high critical current density Jc and excellent mechanical stability are among the most important properties. In this study, 3-8 wt-%MgO fibres are added to Bi-2212 superconductor powder. The MgO fibres are prepared in-house using the sol-gel route. The Bi-2212/MgO fibres compounds are heat treated, followed by partial-melting and slow-cooling. The mechanical strength of the samples is studied by conducting the compression test. From the results, the addition of 5%MgO fibres is found to improve the texture of the Bi-2212/MgO fibres ceramics without degrading the transition temperature Tc if compared with the other samples. In addition, the Jc values are enhanced due to the addition of the MgO fibres that significantly improved the texture of the compounds and the grain connectivity within the grains. Significantly higher stiffness, strength and toughness are observed in MgO added samples at room temperature. � W. S. Maney & Son Ltd. 2009.
author2 6604077116
author_facet 6604077116
Hamid N.A.
Shamsudin N.F.
Seec K.W.
format Conference paper
author Hamid N.A.
Shamsudin N.F.
Seec K.W.
author_sort Hamid N.A.
title Superconducting properties and mechanical strength of MgO fibres reinforced bulk Bi-2212 superconductor ceramics
title_short Superconducting properties and mechanical strength of MgO fibres reinforced bulk Bi-2212 superconductor ceramics
title_full Superconducting properties and mechanical strength of MgO fibres reinforced bulk Bi-2212 superconductor ceramics
title_fullStr Superconducting properties and mechanical strength of MgO fibres reinforced bulk Bi-2212 superconductor ceramics
title_full_unstemmed Superconducting properties and mechanical strength of MgO fibres reinforced bulk Bi-2212 superconductor ceramics
title_sort superconducting properties and mechanical strength of mgo fibres reinforced bulk bi-2212 superconductor ceramics
publishDate 2023
_version_ 1806428138908942336