Effect of Boron powder purity on superconducting properties of bulk MgB2

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dc.contributor.authorXu, Xun
dc.contributor.authordos Santos, Dayse I. [UNESP]
dc.contributor.authorKim, J. H.
dc.contributor.authorYeoh, W. K.
dc.contributor.authorQin, M. J.
dc.contributor.authorKonstantinov, K.
dc.contributor.authorDou, S. X.
dc.contributor.institutionUniversity of Wollongong
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:22:34Z
dc.date.available2014-05-27T11:22:34Z
dc.date.issued2007-09-01
dc.description.abstractIn order to study the influence of the amorphous Boron powder on the superconducting properties, MgB2 bulk samples were prepared using 96% and 99% pure commercial Boron powder as well as 92% commercial Boron powder after purification process. The results showed that the original 96% and the purified 92% powders have larger particle size compared to the pure 99% Boron powder, which leads to reduce magnetic critical current densities. In order to get higher performance MgB2, the purified low grade Boron powder need further control of their microstructure such as smaller particle size to enhance flux pinning from the grain boundaries which represent effective pinning centers. © 2007 Elsevier B.V. All rights reserved.en
dc.description.affiliationInstitute for Superconducting and Electronic Materials University of Wollongong, Wollongong, NSW 2522
dc.description.affiliationUNESP Sao Paulo State University Faculdade de Ciencias LMSC, C.P. 473, Bauru, Sao Paulo 17015970
dc.description.affiliationUnespUNESP Sao Paulo State University Faculdade de Ciencias LMSC, C.P. 473, Bauru, Sao Paulo 17015970
dc.format.extent602-603
dc.identifierhttp://dx.doi.org/10.1016/j.physc.2007.04.112
dc.identifier.citationPhysica C: Superconductivity and its Applications, v. 460-462 I, n. SPEC. ISS., p. 602-603, 2007.
dc.identifier.doi10.1016/j.physc.2007.04.112
dc.identifier.issn0921-4534
dc.identifier.scopus2-s2.0-34548175227
dc.identifier.urihttp://hdl.handle.net/11449/69834
dc.language.isoeng
dc.relation.ispartofPhysica C: Superconductivity and its Applications
dc.relation.ispartofjcr1.453
dc.relation.ispartofsjr0,492
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCritical current density
dc.subjectFlux pinning
dc.subjectMgB2
dc.subjectParticle size effect
dc.subjectBoron
dc.subjectCurrent density
dc.subjectMicrostructure
dc.subjectPurification
dc.subjectPowder metals
dc.titleEffect of Boron powder purity on superconducting properties of bulk MgB2en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy

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