Effect of metal ring setting outside HTSC bulk disk on trapped field and temperature rise in pulse field magnetizing

被引：14

作者：

Fujishiro, H ^{[1
]}

Yokoyama, K

Kaneyama, M

Oka, T

Noto, K

机构：

[1] Iwate Univ, Fac Engn, Morioka, Iwate 0208551, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050003, Japan

[3] IMRA Mat R&D Co Ltd, Kariya, Aichi 4480021, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2005年 / 15卷 / 02期

关键词：

high T-c bulk superconductors; metal ring setting; pinning and viscous loss; pulse field magnetizing; temperature measurement;

D O I：

10.1109/TASC.2005.849425

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 [电气工程]; 0809 [电子科学与技术];

摘要：

In order to enhance the trapped field in cryo-cooled HTSC bulks using pulse field magnetizing (PFM), a metal ring (stainless steel 304 and/or Al) has been tightly set onto the SmBaCuO bulk disk and the relation between the total trapped flux Phi(P,)(T) the trapped field B-T(P), and the temperature rise AT, has been investigated as a function of the applied pulse field B-ex. The Phi(P)(T) and B P values are enhanced about 10 similar to 20% by the metal ring due to the reduction in the temperature rise AT. These results suggest that a part of the generated heat Q due to the flux motion in the peripheral region promptly transfers to the metal ring and the heat transfer to the cold stage is improved by the ring setting.

引用

收藏

页码：3762 / 3765

页数：4

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