Show simple document record

dc.contributor.advisorBoulos, Maher.fr
dc.contributor.advisorGritzhofer, F.fr
dc.contributor.advisorFauchais, P.fr
dc.contributor.advisorVardelle, M.fr
dc.contributor.authorRenouard-Vallet, Gwénaëllefr
dc.date.accessioned2014-05-15T12:32:16Z
dc.date.available2014-05-15T12:32:16Z
dc.date.created2004fr
dc.date.issued2004fr
dc.identifier.isbn0494002107fr
dc.identifier.urihttp://savoirs.usherbrooke.ca/handle/11143/1764
dc.description.abstractThe aim of this PhD work is to elaborate using plasma spraying fine, dense, crack-free coatings of Yttria Stabilized Zirconia (YSZ) for SOFCs electrolyte. The experimental approach has been based on the increase velocities of particles in a molten state upon impact using three plasma spraying processes (Arc plasma spraying, vacuum plasma spraying and supersonic inductive plasma spraying) and powder with a fine granulometry (-25+5[micro]m). In-flight particles and lamellaes characterisations were carried out to study their influence onto deposit microstructure and the influence of the latter one on their porosity and ionic conductivity. Two kinds of microstructure function of spraying process were obtained thanks to the increase of particle velocities upon impact. Those specific microstructures lead to the increase of the number of good interlamellar contacts that allows benefiting ionic conductivity. So, in future, it will be possible to elaborate all the stack (anode-electrolyte-cathode) with the same plasma spraying process.fr
dc.language.isofrefr
dc.publisherUniversité de Sherbrookefr
dc.rights© Gwénaëlle Renouard-Valletfr
dc.subjectConductivité ioniquefr
dc.subjectContacts interlamellairesfr
dc.subjectSOFCfr
dc.subjectYSZfr
dc.subjectÉlectrolytesfr
dc.subjectInjection des particulesfr
dc.subjectPropriétés des particules en volfr
dc.subjectPlasma inductif supersoniquefr
dc.subjectPlasma d'arc sous videfr
dc.subjectPlasma d'arcfr
dc.titleÉlaboration par projection plasma d'électrolytes de zircone yttriée denses et de faible épaisseur pour SOFCfr
dc.typeThèsefr
tme.degree.disciplineGénie chimiquefr
tme.degree.grantorFaculté de géniefr
tme.degree.grantotherUniversité de Limogesfr
tme.degree.levelDoctoratfr
tme.degree.namePh.D.fr


Files in this document

Thumbnail

This document appears in the following Collection(s)

Show simple document record