Pulsed Field Magnetization for GdBaCuO Bulk With Stronger Pinning Characteristics

被引：31
|
作者：
Fujishiro, Hiroyuki [1 ]
Hiyama, Takuya [1 ]
Miura, Takashi [1 ]
Naito, Tomoyuki [1 ]
Nariki, Shinya [2 ]
Sakai, Naomichi [2 ]
Hirabayashi, Izumi [2 ]
机构：
[1] Iwate Univ, Fac Engn, Morioka, Iwate 0208551, Japan
[2] ISTEC, SRL, Koto Ku, Tokyo 1350062, Japan
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2009年 / 19卷 / 03期
关键词：
MMPSC method; pinning force; pulsed field magnetization; trapped field; BA-CU-O; TRAPPED FIELD; TEMPERATURE RISE; HTSC BULK; SUPERCONDUCTOR;
D O I：
10.1109/TASC.2009.2018081
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 ; 0809 ;
摘要：
The GdBaCuO superconducting bulk with stronger pinning characteristics (B(T) = 1.8 T at 77 K by the field cooled magnetization (FCM)) has been magnetized at T(s) = 70 - 20 K by the pulsed field magnetization (PFM) techniques; a sequential pulsed-field application (SPA) and a modified multi pulse technique with stepwise cooling (MMPSC). With decreasing T(s), the pinning force F(P) increases especially at the growth sector boundaries (GSBs), and then the nonuniformity of the trapped field profile becomes more and more conspicuous on the bulk surface. At low T(s), the SPA technique is not necessarily a suitable technique to enhance the trapped field B(T) and the total trapped flux Phi(T).However, these values can be enhanced by the MMPSC method. The properties of the bulk with stronger pinning characteristics during PFM are discussed.
引用
收藏
页码：3545 / 3548
页数：4
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