Kinetics of phase growth in the Cu-Sn system and application to composite Nb/sub 3/Sn strands
Kinetics of phase growth in the Cu-Sn system and application to composite Nb/sub 3/Sn strands
复制标题
Cu-Sn 体系中相生长动力学及其在 Nb/sub 3/Sn 复合材料中的应用
DOI：
10.1109/tasc.2003.812339
复制
发表时间：
2003
影响因子：
1.8
通讯作者：
J. Rey
中科院分区：
文献类型：
--
作者：
S. Mattafirri;E. Barzi;F. Fineschi;J. Rey
Nb/sub 3/Sn超导体是高场加速器磁体研究开发中最常用的超导体，无论是绕-反应技术还是反应-绕技术。为了对热处理的低温步骤进行编程，研究了Cu-Sn金属间化合物的生长动力学作为持续时间和温度的函数。使用Cu-Sn模型样品评估在150 /spl deg/C和550 /spl deg/C之间的/spl eta/、/spl epsiv/和/spl delta/相的扩散常数。为了进行准确的数据分析，确定了统计和系统误差。接下来，将内部锡和改性果冻卷Nb/sub 3/Sn复合材料的行为与模型预测进行比较。
Nb/sub 3/Sn is the superconductor most used in the R&D of high field accelerator magnets by either the wind&react or the react&wind technique. In order to program the low temperature steps of the heat treatment, the growth kinetics of Cu-Sn intermetallics was investigated as a function of duration and temperature. The diffusion constants of /spl eta/, /spl epsiv/ and /spl delta/ phases between 150 /spl deg/C and 550 /spl deg/C were evaluated using Cu-Sn model samples. For an accurate data analysis, statistical and systematic errors were determined. Next the behavior of Internal Tin and Modified Jelly Roll Nb/sub 3/Sn composites was compared with the model predictions.