کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5488276 | 1524074 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of the critical current density in YBCO/Ag composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک اتمی و مولکولی و اپتیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
YBa2Cu3O7Â +Â xAgâ
(x = 0.0, â
5.0, â
15.0 and 20Â wt%) composite samples have been prepared by the solid state reaction method. The changes in structure are confirmed from the X-ray diffraction analysis and SEM measurements. The critical current density is calculated using Bean's formula from the magnetization measurement. We find that the addition of silver in YBCO enhances the critical current density (â
JC) by a factor of nearly six (for 15% Ag) in comparison to pure YBCO. Enhancement of the pinning force (FP) by a factor of ten is also reported. The enhancement in â
JC is investigated over a wide range of magnetic fields. These significant changes in â
JC and FP are attributed to the presence of Ag particles as efficient artifical pinning centers in YBCO.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Physics - Volume 55, Issue 1, February 2017, Pages 170-175
Journal: Chinese Journal of Physics - Volume 55, Issue 1, February 2017, Pages 170-175
نویسندگان
Bilal A. Malik, Manzoor A. Malik, K. Asokan,