Synthesis of ultrafine superconducting MgB2 by a convenient solid-state reaction route

被引：10
|
作者：
Shi, LA
Gu, YL
Qian, T
Li, XG
Chen, LY
Yana, ZH
Ma, JH
Qian, YT [1 ]
机构：
[1] Univ Sci & Technol China, Struct Res Lab, Anhua 230026, Peoples R China
[2] Univ Sci & Technol China, Dept Chem, Anhua 230026, Peoples R China
[3] Univ Sci & Technol China, Dept Mat Sci & Engn, Anhua 230026, Peoples R China
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 405卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
chemical synthesis; X-ray diffraction; magnesium diboride;
D O I：
10.1016/j.physc.2004.02.013
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ultrafine magnesium diboride (MgB2) powders were successfully synthesized at 600degreesC through a solid-state reaction. The synthesis was carried out in an autoclave by using MgCl2 and NaBH4 as the reactants. The X-ray powder diffraction pattern indicates the formation of hexagonal MgB2. Transmission electron microscopy image shows that typical MgB2 crystallites are composed of ultrafine particles with an average size of 300 nm. The superconducting transition of the MgB2 sample occurs at 39 K. (C) 2004 Published by Elsevier B.V.
引用
收藏
页码：271 / 274
页数：4
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