EFFECTS OF MAGNESIUM ADDITION TO THE CU-SN MATRIX IN THE COMPOSITE-PROCESSED NB3SN SUPERCONDUCTOR

被引：45

作者：

TOGANO, K

ASANO, T

TACHIKAWA, K

机构：

[1] National Research Institute for Metals, Meguro-ku, Tokyo, 153

来源：

JOURNAL OF THE LESS-COMMON METALS | 1979年 / 68卷 / 01期

关键词：

D O I：

10.1016/0022-5088(79)90268-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of the addition of a small amount of magnesium to the CuSn matrix in the composite-processed (bronze-processed) Nb3Sn super-conductor were investigated. It was found that the magnesium addition significantly suppresses the Nb3Sn grain coarsening. The fine Nb3Sn grain structure produced in the Nb/CuSnMg composite enhances the grain boundary diffusion of tin and consequently makes the Nb3Sn growth rate nearly twice as much as that of the Nb/CuSn composite. The significant increase in superconducting critical current attained in the Nb/CuSnMg composite shows that the magnesium addition is promising for the improvement of the current-carrying capacities of multifilamentary Nb3Sn superconductors. © 1979.

引用

页码：15 / 22

页数：8

共 16 条

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