Trapped field characteristics on φ65 mm GdBaCuO bulk by modified multi-pulse technique with stepwise cooling (MMPSC)

被引：8

作者：

Fujishiro, H. ^{[1
]}

Tateiwa, T. ^{[1
]}

Kakehata, K. ^{[1
]}

Hiyama, T. ^{[1
]}

Naito, T. ^{[1
]}

Yanagi, Y. ^{[2
]}

机构：

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

[2] IMR Mat R&D Co Ltd, Kariya, Aichi 4480021, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2008年 / 468卷 / 15-20期

关键词：

pulsed field magnetization; MMPSC method; trapped flux density profile; bulk superconductor;

D O I：

10.1016/j.physc.2008.05.142

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A large GdBaCuO superconducting bulk 65 mm in diameter has been magnetized by a two-stage pulse field magnetization method named as a modified multi-pulse technique with stepwise cooling (MMPSC). The trapped field B-T(P) of 3.0 T was achieved at the bulk center at 40 K by optimizing the trapped field profile at the first stage of the MMPSC method, on which the maximum B-T(P) was as low as 1.9 T at 40 K for the single pulsed field application. A magnetic gradient along the radius direction larger than that estimated by a Bean's model is realized at the ascending stage of the magnetic pulse field at the second stage, and a large amount of magnetic fluxes staying at the bulk periphery flow to the bulk center at the descending stage. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1477 / 1480

页数：4

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