Microstructure and superconducting properties comparison of bronze and internal tin process Nb3Sn strands for ITER

被引：8
|
作者：
Zhang, P. X. [1 ,2 ]
Feng, Y. [1 ,2 ]
Liu, X. H. [2 ]
Li, C. G. [1 ]
Zhang, K. [2 ]
Tang, X. D. [1 ,2 ]
Wu, Y. [3 ]
机构：
[1] NW Inst Nonferrous Met Res, Xian 710016, Shaanxi, Peoples R China
[2] Western Superconducting Technol Co Ltd, Xian 710016, Shaanxi, Peoples R China
[3] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2009年 / 469卷 / 15-20期
关键词：
Nb3Sn; Internal Sn and bronze process; Microstructure; Superconducting properties;
D O I：
10.1016/j.physc.2009.05.236
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The long multifilamentary Nb3Sn strands for international thermonuclear experimental reactor (ITER) have been successfully fabricated by bronze and internal Sri process, respectively. Adopted in this work, the bronze process Nb3Sn strand with a Cu/non-Cu area ratio of 1:1.09 and the internal tin process strand with a Cu/non-Cu area ratio of 1:1.15 were designed. The microstructure details of two kinds of strands before and after heat treatment have been investigated by scanning electron microscope (SEM) and energy dispersive X-ray analysis (EDX). The non-Cu J(c) (12 T, 4.2 K) value of 752 A/mm(2) for bronze process strand and 1185 A/mm(2) for internal tin process strand have been obtained. The influence of microstructure on transport property of strands has been discussed. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1536 / 1540
页数：5
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