Preparation of LaFeAsO0.9F0.1 wires by the powder-in-tube method

被引：61

作者：

Gao, Zhaoshun ^{[1
]}

Wang, Lei ^{[1
]}

Qi, Yanpeng ^{[1
]}

Wang, Dongliang ^{[1
]}

Zhang, Xianping ^{[1
]}

Ma, Yanwei ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Elect Engn, Key Lab Appl Superconduct, Beijing 100190, Peoples R China

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2008年 / 21卷 / 10期

关键词：

D O I：

10.1088/0953-2048/21/10/105024

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report that Fe sheathed LaFeAsO0.9F0.1 wires with Ti as a buffer were fabricated by the powder-in-tube (PIT) method for the first time. Compared to the common two-step vacuum quartz tube synthesis method, the PIT method is more convenient and safe for synthesizing the novel iron-based layered superconductors. Structural analysis by means of x-ray diffraction shows that LaFeAsO0.9F0.1 is the main phase in wires produced by this synthesis method. The transition temperature of the LaFeAsO0.9F0.1 wire is around 25 K. The micrograph shows a homogeneous microstructure with a grain size of 1-3 mu m. The results suggest that the PIT process is promising for preparing iron-based layered superconductors.

引用

页数：4

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