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

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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 http://hdl.handle.net/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


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