Comparison of the oxalate co-precipitation and the solid state reaction methods for the production of high temperature superconducting powders and coatings

Ochsenkuhn-Petropoulou, M; Argyropoulou, R; Tarantilis, P; Kokkinos, E; Ochsenkuhn, KM; Parissakis, G

dc.contributor.author	Ochsenkuhn-Petropoulou, M	en
dc.contributor.author	Argyropoulou, R	en
dc.contributor.author	Tarantilis, P	en
dc.contributor.author	Kokkinos, E	en
dc.contributor.author	Ochsenkuhn, KM	en
dc.contributor.author	Parissakis, G	en
dc.date.accessioned	2014-03-01T01:17:39Z
dc.date.available	2014-03-01T01:17:39Z
dc.date.issued	2002	en
dc.identifier.issn	0924-0136	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14599
dc.subject	YBCO	en
dc.subject	oxalate co-precipitation	en
dc.subject	coatings	en
dc.subject	XRD	en
dc.subject	DSC	en
dc.subject	SQUID	en
dc.subject.classification	Engineering, Industrial	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	ELECTROPHORETIC DEPOSITION	en
dc.subject.other	THICK-FILMS	en
dc.subject.other	HIGH-TC	en
dc.subject.other	YBA2CU3O7-X	en
dc.subject.other	COPRECIPITATION	en
dc.subject.other	BULK	en
dc.subject.other	OPTIMIZATION	en
dc.title	Comparison of the oxalate co-precipitation and the solid state reaction methods for the production of high temperature superconducting powders and coatings	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0924-0136(02)00279-0	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0924-0136(02)00279-0	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	High quality orientated YBa2Cu3O7-x (x = 0-1-0.2) (YBCO) superconducting coatings were produced by the electrophoretic deposition technique. The fine particle YBCO powder used, was produced by the oxalate co-precipitation method on Au/Si and Pt/Si wafers. The optimized thermal treatment for both, powders and coatings, was followed by thermal analysis (thermogravimetry (TG) and differential scanning calorimetry (DSC)). The powders and coatings obtained, were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), optical microscopy, magnetic susceptibility and electrical resistivity measurements. It resulted that by the oxalate coprecipitation method finer and more homogeneous nanocrystalline YBCO powders were produced in comparison to the solid state reaction method, leading to more favorable conditions for their thermal treatment, like lower sintering temperature and shorter duration of the sintering process, as well as better superconducting properties, expressed by the shape and value of the corresponding magnetization curves. Furthermore, the production of the coatings was achieved in a shorter electrophoresis time by the powders from the co-precipitation method and the coatings produced were orientated having improved superconducting properties in comparison to those obtained by the solid state reaction method. (C) 2002 Elsevier Science B.V All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY	en
dc.identifier.doi	10.1016/S0924-0136(02)00279-0	en
dc.identifier.isi	ISI:000178566900016	en
dc.identifier.volume	127	en
dc.identifier.issue	1	en
dc.identifier.spage	122	en
dc.identifier.epage	128	en