کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1817511 | 1525694 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pulsed field magnetization characteristics of a holed superconducting bulk magnet
ترجمه فارسی عنوان
ویژگی های مغناطیسی میدان مغناطیسی یک آهنربا فله ای ابررسانا
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کلمات کلیدی
آهنربا فله ی ابررسانا، سوراخ کوچک، مغناطیس میدان مغناطیسی، جریان مغناطیسی کامل، پرش شار
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
چکیده انگلیسی
We have proposed a holed superconducting bulk magnet to trap the magnetic field efficiently in the high-performance material excited by pulsed field magnetization. Previously, a single pulsed field was applied with varying amplitudes of the magnetic fields and temperatures to a GdBCO bulk material with four 2-mm-diameter holes, and the time responses of flux density on the bulk surface and trapped field distributions were measured. The experimental results suggested that the number of holes was too high because a large distortion appeared in the trapped field distributions. In this paper, we processed only a single hole with a different hole size and investigated the magnetization characteristics. After estimating the trapped field performance by applying a single pulsed field with varying its amplitude and temperature in the original material, a 1-mm-diameter hole was drilled; then the hole was extended to 2Â mm in diameter, and the same experiments were carried out in each sample. A total magnetic flux of both 1-mm-diameter hole and 2-mm-diameter hole samples was about 10 percent higher than that of a four-hole sample at a low temperature. On the other hand, the value of a 2-mm-diameter hole sample was the same as that of a four-hole sample at a high temperature. The experimental results suggested that about 1Â mm in diameter was proper for the hole size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 518, 15 November 2015, Pages 117-121
Journal: Physica C: Superconductivity and its Applications - Volume 518, 15 November 2015, Pages 117-121
نویسندگان
K. Yokoyama, R. Igarashi, R. Togasaki, T. Oka,