Sintering mechanism of Ag-doped MgB2 superconductor from low temperature to high temperature

被引：5
作者：
Ning, B. Q. [1 ,2 ]
Jiang, H. [3 ]
Yan, Z. S. [1 ]
机构：
[1] Tianjin Pipe Grp Corp, Tianjin 300301, Peoples R China
[2] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin 300191, Peoples R China
[3] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2010年 / 21卷 / 07期
关键词：
PHASE-FORMATION; BULK MGB2; ENHANCEMENT;
D O I：
10.1007/s10854-009-9974-4
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Combined with thermal analysis and phase identification, the sintering process of Ag-doped MgB2 superconductor was investigated. It is found that the Ag doping could form Mg-Ag liquid through the eutectic reaction at low temperature (about 470 A degrees C) and then obviously accelerated the formation of MgB2 phase. Moreover, a sintering model is also proposed to illustrate the liquid activated sintering mechanism present in the sintering process of Ag-doped MgB2 samples. The sintering model is supposed to provide theoretic guidance for optimizing the sintering condition in the synthesis of doped MgB2 superconductors.
引用
收藏
页码：666 / 670
页数：5
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