کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1820376 | 1525783 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of metal impregnation in the field cool magnetization of bulk superconductor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of metal impregnation in the field cool magnetization of bulk superconductor Effect of metal impregnation in the field cool magnetization of bulk superconductor](/preview/png/1820376.png)
چکیده انگلیسی
Gd-Ba-Cu-O bulk superconductors have significant potential for various applications due to the high critical current density and the highly trapped magnetic fields. Recently we have developed a large sized bulk superconductor using Gd210, which is discovered in the microgravity experiment. We investigated the mechanical properties and the cryostability of the Gd-Ba-Cu-O bulk superconductor to determine how to improve toughness and heat conduction of the large sized bulk superconductor. We introduced a stainless ring around the circumference of the bulk to increase the fracture strength of the bulk. Also, we introduced Al wires inserted in the hole along the c-axis of the bulk, and then the sample was subjected to the impregnation by using Bi-Sn-Cd alloy. We measured the trapped magnetic fields and the repulsive forces of the samples. The trapped magnetic field distributions were 1.13-1.36Â T. The repulsive forces at 1Â mm gap between the sample bulk and the permanent magnet with the surface magnetic induction of 0.37Â T were about 70Â N at 77Â K. We have also measured the temperature dependence of the trapped magnetic field, and confirmed the effect of metal impregnation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 445â448, 1 October 2006, Pages 375-378
Journal: Physica C: Superconductivity and its Applications - Volumes 445â448, 1 October 2006, Pages 375-378
نویسندگان
M. Kita, S. Nariki, N. Sakai, I. Hirabayashi,