Diffusion coefficient, activation energy and the effect of Ag-doping on some physical properties of silver doped Bi1.8Pb0.4Ca2.2Sr2Cu3Ox

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dc.authorid0000-0003-3183-7017en_US
dc.authorid0000-0002-3944-0367
dc.authorid0000-0001-7066-1566
dc.authorid0000-0002-9810-2659
dc.contributor.authorAkdoğan, Mustafa
dc.contributor.authorTerzioğlu, Cabir
dc.contributor.authorVarilci, Ahmet
dc.contributor.authorBelenli, İbrahim
dc.date.accessioned2021-06-23T19:26:49Z
dc.date.available2021-06-23T19:26:49Z
dc.date.issued2010
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractThe aim of the present study is to investigate the effect of diffusion-doped silver on some physical properties of Bi1.8Pb0.4Ca2.2Sr2Cu3Ox superconducting samples and to calculate the diffusion coefficient and the activation energy of silver. The present work consists of three parts: (a) optimization of annealing temperature, (b) the effect of Ag diffusion-doped on microstructure and superconducting properties of Bi(Pb)CaSrCuO, and (c) calculation of diffusion coefficient of silver. First, to investigate the optimum annealing temperature we prepared Bi1.8Pb0.4Ca2.2Sr2Cu3Ox ceramic superconductors annealed at 830, 835, 840, 845, and 850 degrees C using the solid state reaction method. The investigations consist of XRD, SEM, dc resistivity, and transport critical current density measurements. The highest T-c and J(c) values were observed for the sample annealed at 840 degrees C for 48 h (B840). Large grain size, denser surface, and high volume fraction of the high-T-c phase were obtained for the sample B840. The diffusion doping of Bi1.8Pb0.4Ca2.2Sr2Cu3Ox by silver increased the critical current density from 123 to 696 A/cm(2) and the transition critical temperature by about 3 K compared with the undoped sample. Ag-doping increased the amount of high-T-c phase and improved the surface morphology. It also caused an increase of the lattice parameter c by an amount of 0.15%. The temperature dependence of the silver diffusion coefficient in the range 600-800 degrees C is described by D=2.9 x 10(-4)exp(-1.05 eV/k(B)T). Possible reasons for the observed improvement in the structural and superconducting properties of the samples due to silver diffusion are discussed. (C) 2010 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.physb.2010.06.048
dc.identifier.endpage4019en_US
dc.identifier.issn0921-4526
dc.identifier.issue18en_US
dc.identifier.startpage4010en_US
dc.identifier.urihttps://doi.org/10.1016/j.physb.2010.06.048
dc.identifier.urihttps://hdl.handle.net/20.500.12491/6662
dc.identifier.volume405en_US
dc.identifier.wosWOS:000281170300042en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorAkdoğan, Mustafa
dc.institutionauthorTerzioğlu, Cabir
dc.institutionauthorVarilci, Ahmet
dc.institutionauthorBelenli, İbrahim
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofPhysica B-Condensed Matteren_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAg Diffusionen_US
dc.subjectDiffusion Coefficienten_US
dc.subjectAnnealing Temperatureen_US
dc.subjectTransition Temperatureen_US
dc.subjectCritical Current Densityen_US
dc.titleDiffusion coefficient, activation energy and the effect of Ag-doping on some physical properties of silver doped Bi1.8Pb0.4Ca2.2Sr2Cu3Oxen_US
dc.typeArticleen_US

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