Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying

Archives of Metallurgy and Materials

K. Yoon¹  J.-H. Ahn¹ 

[1] ANDONG NATIONAL UNIVERSITY, ANDONG, SOUTH KOREA

关键词: Keywords: Magnesium diboride;    superconductors;    mechanical alloying;    ball-milling;   

DOI  :  10.1515/amm-2015-0112

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

In this study, we examined the effect of Ga-doping and mechanical alloying in MgB2 on microstructural and phase evolution. A comparison was made between in-situ and ex-situ processed Mg-B-Ga samples. Densification was markedly improved by ex-situ sintering of ball-milled MgB2+Ga. The Ga-doping and ball-milling prior to sintering resulted in the formation of impurity phases such as MgO, Ga5Mg2 and Ga2O3. Lattice parameter of MgB2 increased with increasing ball-milling duration as well as by Ga-doping.

【 授权许可】

Unknown