Effect of Post-Heat Treatment on Superconducting Properties of Nb3Al Wires Prepared With RHQ Process at Different Conditions

被引：6

作者：

Zhao, Yong ^{[1
,2
]}

Li, Ping Yuan ^{[3
]}

Ke, Chuan ^{[2
]}

Yu, Zhou ^{[2
]}

Pan, Xi Feng ^{[4
]}

Cheng, Cui Hua ^{[2
]}

Yan, Guo ^{[4
]}

Zhang, Yong ^{[2
]}

Feng, Yong ^{[4
]}

机构：

[1] Fujian Normal Univ, Coll Phys & Energy, Fuzhou 350117, Fujian, Peoples R China

[2] Southwest Jiaotong Univ, Superconduct & New Energy R&D Ctr, Key Lab Magnet Levitat Technol & Maglev Trains, Chengdu 610031, Sichuan, Peoples R China

[3] Southwest Petr Univ, Chengdu 610500, Sichuan, Peoples R China

[4] Western Superconducting Technol WST Co Ltd, NELSM, Xian 710018, Shaanxi, Peoples R China

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2019年 / 29卷 / 05期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Nb3Al wires; rapid heating and quenching process; superconductivity; critical current density; PERFORMANCE;

D O I：

10.1109/TASC.2019.2898726

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：

In this paper, we studied the effects of the tensile stress, heating current, and postheat treatment on the performance of single core-structured jelly-roll Nb-Al precursor long wires fabricated with rapid heating, quenching (RHQ) process. It is observed that RHQ treatment with a tensile stress between 20 and 46.7 N/mm(2) tends to stabilize the RHQ process by reducing the mechanical vibration, however, it is easy to cause breakage of the wires and interrupt the continuous process. A stable tensile-stressfree RHQ process is developed which allows to further optimize the RHQ processing and to improve the superconducting performance of the Nh(3)Al wires.

引用

页数：4

共 17 条

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