Current densities of thin filament MgB2/Ti/GlidCop® wire

被引：10

作者：

Kovac, P. ^{[1
]}

Husek, I. ^{[1
]}

Melisek, T. ^{[1
]}

Kopera, L. ^{[1
]}

机构：

[1] Slovak Acad Sci, Inst Elect Engn, Bratislava 84104, Slovakia

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2011年 / 24卷 / 10期

关键词：

MGB2; WIRES;

D O I：

10.1088/0953-2048/24/10/105006

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Fine-filamentary MgB2/Ti/GlidCop wire has been produced by an in situ process. Hydrostatic extrusion, drawing and two-axis rolling were used for wire deformation up to the size of 0.2 x 0.2 mm(2). An averaged filament size of 7.6-14 mu m was obtained for two-axis rolled wire and tape, which are the smallest MgB2 filaments known so far. Very short annealing periods (3-7 min) were used for the thinnest filaments, resulting in a critical current density of approximate to 12 000 A cm(-2) at 8 T and 4.2 K. The results presented demonstrate the ability to prepare uniform approximate to 10 mu m size and high current density filamentary MgB2 wires in nonmagnetic sheaths, which can be applied for DC and AC coils.

引用

页数：5

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