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http://hdl.handle.net/1942/3034
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DC Field | Value | Language |
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dc.contributor.author | VAN BAEL, Marlies | - |
dc.contributor.author | KAREIVA, Aivaras | - |
dc.contributor.author | NOUWEN, Ria | - |
dc.contributor.author | SCHILDERMANS, Inge | - |
dc.contributor.author | VANHOYLAND, Geert | - |
dc.contributor.author | D'HAEN, Jan | - |
dc.contributor.author | D'OLIESLAEGER, Marc | - |
dc.contributor.author | FRANCO, Dirk | - |
dc.contributor.author | MULLENS, Jules | - |
dc.contributor.author | YPERMAN, Jan | - |
dc.contributor.author | VAN POUCKE, Lucien | - |
dc.date.accessioned | 2007-11-23T13:27:39Z | - |
dc.date.available | 2007-11-23T13:27:39Z | - |
dc.date.issued | 1999 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 1(3-4). p. 259-268 | - |
dc.identifier.issn | 1466-6049 | - |
dc.identifier.uri | http://hdl.handle.net/1942/3034 | - |
dc.description.abstract | In this work the influence of replacing Cu by Ni or Co on the structural and superconducting properties of YBa2Cu4O8 is studied by means of XRD, TGA, SEM, EDX and resistivity measurements. The samples are prepared by the acetate-tartrate sol-gel method, which has proved to be very appropriate for the synthesis of Y-124 at 1 arm with even very small amounts of dopants. It is demonstrated that the transition temperature drastically decreases upon Co or Ni substitution, and that superconductivity is lost at 3% Ni and 6% Co doping. XRD measurements show that Ni and Co produce different structural effects to the orthorhombic YBa2Cu4O8 phase, possibly because they are introduced in different copper positions. Interesting results are obtained by additional substitution of Y by Ca in the Co- and Ni-doped samples: It is shown that the superconducting properties are enhanced in the samples with less than 3% Ni or 6% Co, and that superconductivity is even recovered in samples with more than 3% Ni or 6% Co. (C) 1999 Elsevier Science Ltd. All rights reserved. | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject.other | superconductors; sol-gel chemistry; electron microscopy; thermogravimetric analysis; X-ray diffraction | - |
dc.title | Sol-gel synthesis and properties of YBa2(Cu1-xMx)(4)O-y (M=Co, Ni) and effects of additional replacement of yttrium by calcium | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 268 | - |
dc.identifier.issue | 3-4 | - |
dc.identifier.spage | 259 | - |
dc.identifier.volume | 1 | - |
local.format.pages | 10 | - |
dc.description.notes | Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium. Vilnius State Univ, Dept Gen & Inorgan Chem, LT-2006 Vilnius, Lithuania. Limburgs Univ Ctr, IMO, Dept Mat Phys, B-3590 Diepenbeek, Belgium.Van Bael, MK, Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, Univ Campus, B-3590 Diepenbeek, Belgium. | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.bibliographicCitation.oldjcat | A1 | - |
dc.identifier.doi | 10.1016/S1466-6049(99)00039-2 | - |
dc.identifier.isi | 000086131800010 | - |
item.fulltext | No Fulltext | - |
item.contributor | VAN BAEL, Marlies | - |
item.contributor | KAREIVA, Aivaras | - |
item.contributor | NOUWEN, Ria | - |
item.contributor | SCHILDERMANS, Inge | - |
item.contributor | VANHOYLAND, Geert | - |
item.contributor | D'HAEN, Jan | - |
item.contributor | D'OLIESLAEGER, Marc | - |
item.contributor | FRANCO, Dirk | - |
item.contributor | MULLENS, Jules | - |
item.contributor | YPERMAN, Jan | - |
item.contributor | VAN POUCKE, Lucien | - |
item.accessRights | Closed Access | - |
item.fullcitation | VAN BAEL, Marlies; KAREIVA, Aivaras; NOUWEN, Ria; SCHILDERMANS, Inge; VANHOYLAND, Geert; D'HAEN, Jan; D'OLIESLAEGER, Marc; FRANCO, Dirk; MULLENS, Jules; YPERMAN, Jan & VAN POUCKE, Lucien (1999) Sol-gel synthesis and properties of YBa2(Cu1-xMx)(4)O-y (M=Co, Ni) and effects of additional replacement of yttrium by calcium. In: INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 1(3-4). p. 259-268. | - |
item.validation | ecoom 2001 | - |
Appears in Collections: | Research publications |
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