Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying

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 b...

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Main Authors: Yoon K., Ahn J.-H.
Format: Article
Language:English
Published: Polish Academy of Sciences 2015-06-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0112/amm-2015-0112.xml?format=INT
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author Yoon K.
Ahn J.-H.
author_facet Yoon K.
Ahn J.-H.
author_sort Yoon K.
collection DOAJ
description 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.
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spelling doaj.art-ab25d2cea07940f8a41ecf6c9a03cfcf2022-12-22T01:46:44ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092015-06-016021271127410.1515/amm-2015-0112amm-2015-0112Properties Of MgB2/Ga Composites Prepared By Mechanical AlloyingYoon K.0Ahn J.-H.1 ANDONG NATIONAL UNIVERSITY, ANDONG, SOUTH KOREA ANDONG NATIONAL UNIVERSITY, ANDONG, SOUTH KOREAIn 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.http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0112/amm-2015-0112.xml?format=INTMagnesium diboridesuperconductorsmechanical alloyingball-milling
spellingShingle Yoon K.
Ahn J.-H.
Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying
Archives of Metallurgy and Materials
Magnesium diboride
superconductors
mechanical alloying
ball-milling
title Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying
title_full Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying
title_fullStr Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying
title_full_unstemmed Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying
title_short Properties Of MgB2/Ga Composites Prepared By Mechanical Alloying
title_sort properties of mgb2 ga composites prepared by mechanical alloying
topic Magnesium diboride
superconductors
mechanical alloying
ball-milling
url http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0112/amm-2015-0112.xml?format=INT
work_keys_str_mv AT yoonk propertiesofmgb2gacompositespreparedbymechanicalalloying
AT ahnjh propertiesofmgb2gacompositespreparedbymechanicalalloying