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Preparation of high solids content nano-titania suspensions to obtain spray-dried nanostructured powders for atmospheric plasma spraying
dc.contributor.author | Vicent Cabedo, Mónica | |
dc.contributor.author | Sánchez-Vilches, Enrique | |
dc.contributor.author | Moreno Berto, Arnaldo Vicente | |
dc.contributor.author | Moreno, Rodrigo | |
dc.date.accessioned | 2012-09-18T10:56:30Z | |
dc.date.available | 2012-09-18T10:56:30Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | Journal of the European Ceramic Society (Jan. 2012) vol. 32, no. 1, p. 185-194 | ca_CA |
dc.identifier.issn | 0955-2219 | |
dc.identifier.uri | http://hdl.handle.net/10234/47483 | |
dc.description.abstract | Nanosized TiO2powder with an average primary size of ∼20 nm and surface area of ∼50 m2/g (Aeroxide®P25, Degussa-Evonik, Germany) was used as starting material. A colloidal titania suspension from the same supplier was also used (W740X). The dispersing conditions were studied as a function of pH, dispersant content, and solids loading. Well-dispersed TiO2 nano suspensions with solids contents up to 30 vol.% (62 wt%) were obtained by dispersing the powder with 4 wt% PAA. Suspensions with solids contents as high as 35 vol.% were prepared by adding the TiO2 nanoparticles to the TiO2 colloida lsuspension under optimised dispersing conditions. TiO2powder reconstitution was performed by spray drying both types of nanosuspensions to obtain free-flowing micrometre-sized nanostructured granules. The spray-dried nanostructured TiO2 granules were deposited on austenitic stainless steel coupons using atmospheric plasma spraying. Coating microstructure and phase composition were characterised using scanning electron microscopy and X-ray diffraction techniques. | ca_CA |
dc.format.extent | 10 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.rights | © 2012 Elsevier Inc. All rights reserved | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Drying | ca_CA |
dc.subject | Suspensions | ca_CA |
dc.subject | Nanocomposites | ca_CA |
dc.subject | TiO2 | ca_CA |
dc.subject | Rheology | ca_CA |
dc.title | Preparation of high solids content nano-titania suspensions to obtain spray-dried nanostructured powders for atmospheric plasma spraying | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1016/j.jeurceramsoc.2011.08.007 | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://www.sciencedirect.com/science/article/pii/S0955221911004092 | ca_CA |
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