Fabrication and Properties of 37-Filaments MgB2 Superconducting Wires by In-Situ Powder-in-Tube Method

被引：0

作者：

Wang Qingyang ^{[1
]}

Zhang Kerong ^{[2
]}

Yang Fang ^{[1
]}

Xiong Xiaomei ^{[1
]}

Xi Dan ^{[3
]}

Wang Dayou ^{[3
]}

Li Chengshan ^{[1
]}

Yan Guo ^{[3
]}

Feng Yong ^{[3
]}

Zhang Pingxiang ^{[1
,3
]}

机构：

[1] Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China

[2] Xizang Minzu Univ, Xianyang 712082, Peoples R China

[3] Western Superconducting Technol Co Ltd, Xian 710018, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2020年 / 49卷 / 08期

关键词：

MgB2; wire; multi filament; mechanical properties; superconducting property;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The 37 filaments MgB2 long wires with the diameter of 1.0 mm, sheathed with higher strength Monel alloys (Monel 400) were fabricated with compound fabrication process including rotary swage, drawing, rolling and middle annealing heat treatment. The microstructure results show that the subcomponent including MgB2 filament and NbCu replacement is uniformly distributed, and there is no breaking point in the Nb diffusion barrier. The mean diameter of MgB2 filament is only 80 mu m in final wires. The yield strength is around 759 MPa for the as -drawn wire and 248 MPa for the sintered wire. The critical current density (J(c)) and engineering current density (J(e)) reach 2.31x10(5) and 3.16x10(4)A.cm(2) at 4.2 K and 4 T, respectively.

引用

页码：2825 / 2829

页数：5

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