New Ti-Sn Intermetallic Compound and (Nb, Ti)3Sn Conductor

被引：5

作者：

Kikuchi, Akihiro ^{[1
]}

Taniguchi, Hiroyasu ^{[2
]}

Yoshida, Yuji ^{[1
]}

Tomonaga, Mitsuo ^{[2
]}

Takeuchi, Takao ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

[2] Osaka Alloying Works Co Ltd, Fukui 9103138, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2009年 / 19卷 / 03期

关键词：

Brittleness; concentration gradient; hybrid bronzed process; (Nb; Ti)(3)Sn; Ti-Sn intermetallic compound; NB3SN; MICROSTRUCTURE; WIRE;

D O I：

10.1109/TASC.2009.2018031

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

New Ti-Sn intermetallic compound of Ti2Sn3 could be easily synthesized at both of diffusion couple and powder mixture. It was found that Ti2Sn3 is very brittle and easily deformed to fine powders. This new high Sn-based compound could be used for an additional Ti and Sn source for the bronze processed (Nb, Ti)(3)Sn wires. The hybrid bronze processed wires are demonstrated with additional Ti2Sn3 modules in the bronze matrix. Significantly thick (Nb, Ti)(3)Sn layers were formed. Although Nb cores still remained in the center of filaments, (Nb, Ti)(3)Sn layers had no apparent gradient of Sn and Ti concentrations. We found the formation of (Cu, Nb)SnTi phases along (Nb, Ti)(3)Sn filaments. After heat treatment, no large Kirkendall voids were observed in the position filled up Ti2Sn3 powders. Fine tau 1 - CuSn3Ti5 precipitates are dispersed and they may behave as the reinforcement for the bronze matrix. It might resemble the effect of the ODS copper. The T-c of hybrid bronze processed wires made with additional Ti2Sn3 modules is comparable with that of the commercially bronze processed wires, which is about 17.5 K.

引用

页码：2556 / 2559

页数：4

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