Enhancement of total trapped fluxes on φ65 mm GdBaCuO bulk by multi-pulse techniques

被引：5

作者：

Fujishiro, H. ^{[1
]}

Kakehata, K. ^{[1
]}

Naito, T. ^{[1
]}

Yanagi, Y. ^{[2
]}

Itoh, Y. ^{[2
]}

机构：

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

[2] Mat R&D Co Ltd, IMRA, Kariya, Aichi 4480032, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2009年 / 469卷 / 15-20期

关键词：

Bulk superconductor; Pulsed field magnetization; SPA plus IMRA method; Total trapped flux density; PULSE-FIELD MAGNETIZATION; SUPERCONDUCTOR;

D O I：

10.1016/j.physc.2009.05.113

中图分类号：

O59 [应用物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We have investigated the total trapped flux Phi(T)(z) on the phi 65 mm GdBaCuO superconducting bulk as a function of distance z from the bulk surface magnetized by a successive pulse field application (SPA) with identical magnitude and Subsequent iterative pulsed-field magnetization method with reducing the amplitude (IMRA) at various temperatures T(s). The Phi(T)(z) value was enhanced by the IMRA process and reached 5.02 mWb on the bulk surface at T(s) = 40 K, which was about 1.7 times larger than that at the end of SPA. The Phi(T) (4 mm) value at 40 K by the SPA+IMRA method was as high as phi(FC)(T) (4 mm) by field cooled magnetization under B(ex) = 3 T at 48 K. The IMRA method is quite effective to enhance the Phi(T) value for large superconducting bulks. (C) 2009 Elsevier B.V. All rights reserved.

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页码：1250 / 1253

页数：4

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