Electrical transport properties of (Bi1.6Pb0.4Sr 2Ca2Cu3O10)/Ag Tapes with Different Nanosized MgO

Nabil A A Yahya, Roslan Abd. Shukor

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7 Citations (Scopus)

Abstract

MgO nanopowders with average size 20 and 40 nm were introduced into (Bi1.6Pb0.4Sr2Ca2Cu 3O10)(MgO)x (x = 0 - 0.15 wt.%) in the pellet form. The optimum amounts for the highest transport critical current density J c were x = 0.10 and 0.01 wt.% for 20 and 40 nm MgO, respectively. These results were used to fabricate MgO added (Bi, Pb)-2223/Ag sheathed tapes using the powder-in-tube method. The tapes were sintered at 845°C for 50 h and 100 h. The structure, microstructure, and J c of the tapes were determined. The temperature and magnetic field dependence of J c for the MgO added tapes exhibited a significant enhancement compared with the nonadded tapes. J c of 20 nm MgO added tape was higher compared with the 40 nm MgO added tape. A higher J c was obtained when the tapes were sintered for 100 h. The increase in J c can be explained as the increase of the flux pinning strength by nanosized MgO. The nanoparticle with size closer to the coherence length was more effective in enhancing J c.

Original languageEnglish
Article number821073
JournalAdvances in Condensed Matter Physics
Volume2013
DOIs
Publication statusPublished - 2013

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tapes
transport properties
flux pinning
pellets
critical current
temperature distribution
current density
tubes
nanoparticles
microstructure
augmentation
magnetic fields

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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title = "Electrical transport properties of (Bi1.6Pb0.4Sr 2Ca2Cu3O10)/Ag Tapes with Different Nanosized MgO",
abstract = "MgO nanopowders with average size 20 and 40 nm were introduced into (Bi1.6Pb0.4Sr2Ca2Cu 3O10)(MgO)x (x = 0 - 0.15 wt.{\%}) in the pellet form. The optimum amounts for the highest transport critical current density J c were x = 0.10 and 0.01 wt.{\%} for 20 and 40 nm MgO, respectively. These results were used to fabricate MgO added (Bi, Pb)-2223/Ag sheathed tapes using the powder-in-tube method. The tapes were sintered at 845°C for 50 h and 100 h. The structure, microstructure, and J c of the tapes were determined. The temperature and magnetic field dependence of J c for the MgO added tapes exhibited a significant enhancement compared with the nonadded tapes. J c of 20 nm MgO added tape was higher compared with the 40 nm MgO added tape. A higher J c was obtained when the tapes were sintered for 100 h. The increase in J c can be explained as the increase of the flux pinning strength by nanosized MgO. The nanoparticle with size closer to the coherence length was more effective in enhancing J c.",
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AU - Abd. Shukor, Roslan

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N2 - MgO nanopowders with average size 20 and 40 nm were introduced into (Bi1.6Pb0.4Sr2Ca2Cu 3O10)(MgO)x (x = 0 - 0.15 wt.%) in the pellet form. The optimum amounts for the highest transport critical current density J c were x = 0.10 and 0.01 wt.% for 20 and 40 nm MgO, respectively. These results were used to fabricate MgO added (Bi, Pb)-2223/Ag sheathed tapes using the powder-in-tube method. The tapes were sintered at 845°C for 50 h and 100 h. The structure, microstructure, and J c of the tapes were determined. The temperature and magnetic field dependence of J c for the MgO added tapes exhibited a significant enhancement compared with the nonadded tapes. J c of 20 nm MgO added tape was higher compared with the 40 nm MgO added tape. A higher J c was obtained when the tapes were sintered for 100 h. The increase in J c can be explained as the increase of the flux pinning strength by nanosized MgO. The nanoparticle with size closer to the coherence length was more effective in enhancing J c.

AB - MgO nanopowders with average size 20 and 40 nm were introduced into (Bi1.6Pb0.4Sr2Ca2Cu 3O10)(MgO)x (x = 0 - 0.15 wt.%) in the pellet form. The optimum amounts for the highest transport critical current density J c were x = 0.10 and 0.01 wt.% for 20 and 40 nm MgO, respectively. These results were used to fabricate MgO added (Bi, Pb)-2223/Ag sheathed tapes using the powder-in-tube method. The tapes were sintered at 845°C for 50 h and 100 h. The structure, microstructure, and J c of the tapes were determined. The temperature and magnetic field dependence of J c for the MgO added tapes exhibited a significant enhancement compared with the nonadded tapes. J c of 20 nm MgO added tape was higher compared with the 40 nm MgO added tape. A higher J c was obtained when the tapes were sintered for 100 h. The increase in J c can be explained as the increase of the flux pinning strength by nanosized MgO. The nanoparticle with size closer to the coherence length was more effective in enhancing J c.

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