Preparation of Nb3Al Superconducting Tapes by a Powder-in-Tube Method Combined with Hot-Pressed Sintering

被引：4

作者：

Zhang, Wenjie ^{[1
]}

Lin, Wenjia ^{[1
]}

Li, Pingyuan ^{[2
]}

Zheng, Liang ^{[1
]}

Yang, Xinsheng ^{[1
]}

Yu, Zhou ^{[1
]}

Pan, Xifeng ^{[2
]}

Yan, Guo ^{[2
]}

Zhao, Yong ^{[1
]}

Zhang, Yong ^{[1
]}

机构：

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

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

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2018年 / 31卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Nb3Al superconducting tape; Mechanical alloying; Powder-in-tube; Hot-pressed sintering; CONDUCTORS; FIELD; WIRE; FABRICATION; PHASE;

D O I：

10.1007/s10948-017-4449-y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The precursors of Nb-Al tape were fabricated by a powder-in-tube (PIT) technique. Supersaturated solid solutions of Nb-Al powder were obtained by high-energy ball milling, followed by a powder-in-tube process to prepare series of Nb3Al precursor tapes. Compared with sintering under normal pressure, the hot-pressing sintering greatly increased the critical current density of the tapes. The results showed that the Nb3Al tapes prepared via the powder-in-tube method and hot-pressed sintering could significantly improve the J (c) performance, and the value of J (c) (8 K, 0 T) was higher than 6 x 10(5) A/cm(2). The Nb3Al tapes after pressing under the pressure of 20 MPa and sintering at 950 C-ay for 3 h had the best magnetic flux pinning performance, and the sample reached the maximum flux pinning force (F (p,max)) of 3.28109 N/m(3) in the magnetic field of 2.2 T.

引用

页码：2027 / 2032

页数：6

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