Dielectric properties through-thickness mapping on extremely thick plasma sprayed TiO2

0455445 - ÚFP 2016 SK eng A - Abstrakt
Ctibor, Pavel - Sedláček, J. - Pala, Zdeněk
Dielectric properties through-thickness mapping on extremely thick plasma sprayed TiO2.
Development of materials science in research and education-Book of abstracts of the 25th Joint Seminar, DMS-RE 2015/25./. Bratislava: Slovak Society for Industrial Chemistry, 2015 - (Koman, M.; Jorík, V.; Kožíšek, Z.). s. 15. ISBN 978-80-89597-28-4.
[Joint Seminar Development of Materials Science in Research and Education /25./. 31.08.2015-04.09.2015, Kežmarské Žľaby]
Institucionální podpora: RVO:61389021
Klíčová slova: Plasma spraying * titanium oxides * dielectric spectroscopy * microstructure
Kód oboru RIV: JH - Keramika, žáruvzdorné materiály a skla
http://dms.fzu.cz/25/index.php?active=absbook

Rutile TiO2 received as a natural mineral was sieved to obtain feedstock powder for spraying. Plates were sprayed using the water-stabilized plasma spray system WSP 500. To restore the stoichiometry, thermal post-treatment (annealing) was applied. The extremely high coating thickness enables us to cut the deposit into three parallel “horizontal” slices (i.e. cuts were perpendicular to the spray direction): one was close the substrate, second one in the middle and the third one close to the surface. This sectioning was performed on as-sprayed deposit as well as on annealed one. Various differences are present in the near-substrate and near-surface parts of the deposit after annealing since they are inherited from the as-sprayed state that was not completely reorganized by the annealing.
Trvalý link: http://hdl.handle.net/11104/0256044