Effect of heat-treatment temperatures on density and porosity in MgB2 superconductor

被引：45

作者：

Liu, CF ^{[1
]}

Yan, G ^{[1
]}

Du, SJ ^{[1
]}

Xi, W ^{[1
]}

Feng, Y ^{[1
]}

Zhang, PX ^{[1
]}

Wu, XZ ^{[1
]}

Zhou, L ^{[1
]}

机构：

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

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 386卷

关键词：

MgB2; density; porosity;

D O I：

10.1016/S0921-4534(02)02170-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The density, porosity, and microstructures of MgB2 samples are very important factors for transition critical current density. The effect of heat-treatment temperatures on density and porosity in MgB2 superconductors has been investigated. The open porosity increases with increasing heat-treatment temperatures, but close porosity decreases. The calculated theory densities from the lattice parameters of the measured samples are 2.6-2.63 g/cm(3). The average measured total porosity (including open and close porosity) is about 50%. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：603 / 606

页数：4

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