The effect of YBa2Cu3O7-x powder characteristics on thick coatings prepared by atmospheric plasma spraying

Georgiopoulos, E; Tsetsekou, A; Andreouli, C

dc.contributor.author	Georgiopoulos, E	en
dc.contributor.author	Tsetsekou, A	en
dc.contributor.author	Andreouli, C	en
dc.date.accessioned	2014-03-01T01:50:30Z
dc.date.available	2014-03-01T01:50:30Z
dc.date.issued	2000	en
dc.identifier.issn	0953-2048	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/26037
dc.subject.classification	Physics, Applied	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	MICROSTRUCTURE	en
dc.subject.other	FILMS	en
dc.title	The effect of YBa2Cu3O7-x powder characteristics on thick coatings prepared by atmospheric plasma spraying	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	The development of superconducting YBa2Cu3O7-x, plasma sprayed coatings on metal substrates can be very useful for applications such as targets for thin-film deposition techniques (sputtering, laser ablation, ion assisted deposition) or magnetic shielding, due to the brittle nature of bulk superconductors. The plasma spraying technique is very flexible and can be used for manufacturing components with a large variety of geometries. This technique requires the use of powders with good rheological characteristics. In this study, YBa2Cu3O7-x powders were produced by using the conventional solid-state reaction route and also by spray drying a solution of nitrate precursors. Both powders, as well as mixtures of them, were plasma sprayed to develop coatings on stainless-steel substrates, with the aim of studying the effect of the feedstock powder characteristics on the coating properties. It was found that by optimizing the plasma spraying conditions, good quality coatings could be obtained. However, the powder morphology and homogeneity significantly affect the coating quality. More homogeneous powders lead to better results, the spray-dried powder being the best because of its enhanced rheological properties and good morphology.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	SUPERCONDUCTOR SCIENCE & TECHNOLOGY	en
dc.identifier.isi	ISI:000165521800008	en
dc.identifier.volume	13	en
dc.identifier.issue	11	en
dc.identifier.spage	1539	en
dc.identifier.epage	1548	en