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Article: Texture and chemical composition analyses on the Hg0.66Pb0.33Ba2Ca2Cu3Oy superconductor using the sealed quartz tube technique

TitleTexture and chemical composition analyses on the Hg0.66Pb0.33Ba2Ca2Cu3Oy superconductor using the sealed quartz tube technique
Authors
KeywordsMicrostructure
Superconductors
Sintering
Issue Date1996
PublisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmr
Citation
Journal of Materials Research, 1996, v. 11 n. 6, p. 1367-1372 How to Cite?
AbstractPb-substituted Hg-based superconductor of Hg0.66Pb0.33Ba2Ca2Cu3Oy has been fabricated using the sealed quartz tube technique. R-T and x-ray diffraction pattern (XDP) measurements show that the specimen has a Tc of 135 K and contains mainly the Hg-1223 phase. Scanning electron microscopy/energy dispersive x-ray analysis (SEM/EDX) and transmission electron microscopy/energy dispersive x-ray analysis (TEM/EDX) were employed to study the texture and chemical composition of the specimen. It is found that the specimen contains round-shaped grains with a mixture of Hg-1223, BaCuO2, and Ca0.85CuO2 phases, square-shaped grains with a formula of PbBa2O3, small single crystals with single Hg-1223 phase, and crystal-like layers with a mixture of Hg-1223 and BaCuO2 phase. We consider that though the doping of Pb can benefit the stabilization of the Hg-1223 phase, it introduces other impurity phases and textures in the specimen at the same time.
Persistent Identifierhttp://hdl.handle.net/10722/43167
ISSN
2015 Impact Factor: 1.579
2015 SCImago Journal Rankings: 0.664

 

DC FieldValueLanguage
dc.contributor.authorChow, JCLen_HK
dc.contributor.authorFung, PCWen_HK
dc.contributor.authorShao, HMen_HK
dc.contributor.authorLam, CCen_HK
dc.date.accessioned2007-03-23T04:40:32Z-
dc.date.available2007-03-23T04:40:32Z-
dc.date.issued1996en_HK
dc.identifier.citationJournal of Materials Research, 1996, v. 11 n. 6, p. 1367-1372en_HK
dc.identifier.issn0884-2914en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43167-
dc.description.abstractPb-substituted Hg-based superconductor of Hg0.66Pb0.33Ba2Ca2Cu3Oy has been fabricated using the sealed quartz tube technique. R-T and x-ray diffraction pattern (XDP) measurements show that the specimen has a Tc of 135 K and contains mainly the Hg-1223 phase. Scanning electron microscopy/energy dispersive x-ray analysis (SEM/EDX) and transmission electron microscopy/energy dispersive x-ray analysis (TEM/EDX) were employed to study the texture and chemical composition of the specimen. It is found that the specimen contains round-shaped grains with a mixture of Hg-1223, BaCuO2, and Ca0.85CuO2 phases, square-shaped grains with a formula of PbBa2O3, small single crystals with single Hg-1223 phase, and crystal-like layers with a mixture of Hg-1223 and BaCuO2 phase. We consider that though the doping of Pb can benefit the stabilization of the Hg-1223 phase, it introduces other impurity phases and textures in the specimen at the same time.en_HK
dc.format.extent586638 bytes-
dc.format.extent27136 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmren_HK
dc.rightsJournal of Materials Research. Copyright © Materials Research Society.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectMicrostructureen_HK
dc.subjectSuperconductorsen_HK
dc.subjectSinteringen_HK
dc.titleTexture and chemical composition analyses on the Hg0.66Pb0.33Ba2Ca2Cu3Oy superconductor using the sealed quartz tube techniqueen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0884-2914&volume=11&issue=6&spage=1367&epage=1372&date=1996&atitle=Texture+and+chemical+composition+analyses+on+the+Hg0.66Pb0.33Ba2Ca2Cu3Oy+superconductor+using+the+sealed+quartz+tube+techniqueen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.hkuros20155-

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