Study of the sintering behaviour of MgB2 superconductor during hot-pressing

被引：38

作者：

Tampieri, A

Celotti, G

Sprio, S

Caciuffo, R

Rinaldi, D

机构：

[1] ISTEC, CNR, I-48018 Faenza, RA, Italy

[2] Univ Ancona, FIMET, I-60131 Ancona, Italy

[3] INFM, Unita Ancona, Ancona, Italy

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 400卷 / 3-4期

关键词：

MgB2; hot pressing; Kingery's model;

D O I：

10.1016/S0921-4534(03)01310-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The densification behaviour of MgB2 was studied when commercial powder was hot-pressed in the temperature range 1070-1190 degreesC. The mechanisms active during sintering were investigated by continuously recording the shrinkage vs. time and elaborating the data on the basis of Kingery's model for liquid phase sintering. XRD and SEM analysis on final dense bodies were used to evaluate secondary phases formation during sintering and the effect of magnesium sublimation. AC magnetic susceptibility measurements were also performed to correlate the microstructural and morphological modifications induced by hot-pressing and the superconducting properties. (C) 2003 Elsevier B.V. All rights reserved.

引用

收藏

页码：97 / 104

页数：8

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