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2016 | 129 | 6 | 1197-1200
Article title

Modelling of Critical Current Density of Sintered Ag Added Bulk MgB₂

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Content
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EN
Abstracts
EN
Magnetic field dependence of critical current density (J_{c}) of bulk MgB₂ material at 20 K is reported. The selected sintered MgB₂ materials contained various amounts of silver. The silver added samples possess always a higher critical current density than the silver free ones. The critical current density increased with silver content and continuously decreased with increase of magnetic field. Further, the normalized volume pinning force density, f_{p}=F_{p}/F_{p,max}, versus reduced field h = H_{a}/H_{irr} for silver free and silver added samples suggested that grain boundary pinning is dominant. In essence, the model of thermal activated flux motion was successfully applied to fit the critical current density of the MgB₂ materials.
Keywords
EN
Year
Volume
129
Issue
6
Pages
1197-1200
Physical description
Dates
published
2016-06
received
2016-01-16
(unknown)
2016-05-25
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv129n623kz
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