Impedance study of the electrophoretic deposition of yttrium silicate from a polymeric precursor sol

Schneider, O; Grosse-Brauckmann, J; Argirusis, C

dc.contributor.author	Schneider, O	en
dc.contributor.author	Grosse-Brauckmann, J	en
dc.contributor.author	Argirusis, C	en
dc.date.accessioned	2014-03-01T01:33:37Z
dc.date.available	2014-03-01T01:33:37Z
dc.date.issued	2010	en
dc.identifier.issn	0955-2219	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20496
dc.subject	A. Sol-gel processes	en
dc.subject	C. Electrical conductivity	en
dc.subject	D. Y2SiO5	en
dc.subject	Electrophoretic deposition	en
dc.subject	Impedance	en
dc.subject.classification	Materials Science, Ceramics	en
dc.subject.other	C/C composites	en
dc.subject.other	Charge transfer resistance	en
dc.subject.other	Constant voltage	en
dc.subject.other	D. Y <sub>2</sub>SiO <sub>5</sub>	en
dc.subject.other	Electrical conductivity	en
dc.subject.other	Electrochemical process	en
dc.subject.other	Electrophoretic depositions	en
dc.subject.other	Green body	en
dc.subject.other	Impedance spectroscopy	en
dc.subject.other	Impedance spectrum	en
dc.subject.other	Polymeric precursors	en
dc.subject.other	Reaction products	en
dc.subject.other	Thin layers	en
dc.subject.other	Yttrium silicates	en
dc.subject.other	Carbon carbon composites	en
dc.subject.other	Charge transfer	en
dc.subject.other	Composite micromechanics	en
dc.subject.other	Electric conductivity	en
dc.subject.other	Electrophoresis	en
dc.subject.other	Gels	en
dc.subject.other	Glassy carbon	en
dc.subject.other	Ion exchange	en
dc.subject.other	Materials properties	en
dc.subject.other	Nanostructured materials	en
dc.subject.other	Silicates	en
dc.subject.other	Sol-gel process	en
dc.subject.other	Sol-gels	en
dc.subject.other	Sols	en
dc.subject.other	Yttrium	en
dc.subject.other	Yttrium alloys	en
dc.subject.other	Deposition	en
dc.title	Impedance study of the electrophoretic deposition of yttrium silicate from a polymeric precursor sol	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jeurceramsoc.2009.07.020	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jeurceramsoc.2009.07.020	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	A polymeric yttrium silicate sol was prepared for the eectrophoretic deposition of Y2SiO5 on C/C composite materials. The properties of the sol and the process of electrophoretic deposition (EPD) from the sol on glassy carbon substrates were studied using impedance spectroscopy. During constant voltage electrophoretic deposition first a rapid and thereafter a more gradual decay in current was observed, accompanied by the formation of a thin layer of an Y2SiO5 green body. Impedance spectroscopy after the end of the EPD experiment revealed that the resistance of the green body did not significantly increase the impedance of the EPD setup. The impedance spectra measured after EPD changed rapidly with time within the first few minutes, showing a decrease in the resistance of the green body and ail increasing charge transfer resistance at the electrodes. This behavior Could be related to the formation of a reaction product of electrochemical processes taking place during EPD, and points to ion depletion in the deposit layer. (C) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Journal of the European Ceramic Society	en
dc.identifier.doi	10.1016/j.jeurceramsoc.2009.07.020	en
dc.identifier.isi	ISI:000275022800004	en
dc.identifier.volume	30	en
dc.identifier.issue	5	en
dc.identifier.spage	1089	en
dc.identifier.epage	1096	en