کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1508453 | 1511075 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fibrous structure and critical current density of MgB2 superconducting wire
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fibrous structure and critical current density of MgB2 superconducting wire Fibrous structure and critical current density of MgB2 superconducting wire](/preview/png/1508453.png)
چکیده انگلیسی
A novel MgB2 superconducting wire has been fabricated by the in situ powder-in-tube method with fine B powders (0.25 μm) and coarse Mg ones (150 μm). The core of this wire has a fibrous structure, which consists of a lot of MgB2 filaments. The critical current density Jc has been found to increase with decreasing a wire size, and Jc of the 1 mm wire is 1.4 × 104 A/cm2 at a temperature of 20 K in a field of 4 T. In addition, it has been revealed from an experiment with a MgB2 tape made by flat-rolling the wire that filament surfaces have a substantial contribution to flux pinning.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cryogenics - Volume 47, Issues 5–6, May–June 2007, Pages 282–286
Journal: Cryogenics - Volume 47, Issues 5–6, May–June 2007, Pages 282–286
نویسندگان
D. Uchiyama, K. Mizuno, T. Akao, M. Maeda, T. Kawakami, H. Kobayashi, Y. Kubota, K. Yasohama,