Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions

[EN] Suspension plasma spraying (SPS) deposition represents an innovative technique to produce coatings that exhib- it improved properties. However, the key to obtain coatings with superior functional properties relies on the in- vestigation of the suspensions as starting materials. For this reason,...

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Autores: Carpio-Cobo, Pablo, Sanchez Vilches, Enrique, Moreno, Rodrigo, Salvador Moya, Mª Dolores|||0000-0002-4242-478X, Borrell Tomás, María Amparo|||0000-0003-4292-4538
Formato: artículo
Fecha de publicación:2016
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/93301
Acesso em linha:https://riunet.upv.es/handle/10251/93301
Access Level:acceso abierto
Palavra-chave:Plasma spraying
Suspensions
Thermal barrier coatings (TBC)
Alumina
Zirconia
CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA
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spelling Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensionsCarpio-Cobo, PabloSanchez Vilches, EnriqueMoreno, RodrigoSalvador Moya, Mª Dolores|||0000-0002-4242-478XBorrell Tomás, María Amparo|||0000-0003-4292-4538Plasma sprayingSuspensionsThermal barrier coatings (TBC)AluminaZirconiaCIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA[EN] Suspension plasma spraying (SPS) deposition represents an innovative technique to produce coatings that exhib- it improved properties. However, the key to obtain coatings with superior functional properties relies on the in- vestigation of the suspensions as starting materials. For this reason, the present work deals with the suspension preparation for SPS process and its influence on the resulting coatings. Laboratory-prepared 60/40 wt% alumina-zirconia suspensions were concentrated to avoid energy loss and were then successfully deposited by SPS technique. The liquid used was water instead of ethanol due to economical, environmental and safety reasons. The preparation of the suspension plays an important role in SPS process since stable and well-dispersed water suspensions are difficult to obtain. For this reason, colloidal behaviour characterisation of the starting particles as well as rheological optimisation of the feedstock suspensions was ad- dressed in this research. Suspensions with different solid loadings (up to 30 vol.% or 72 wt%) were deposited using several spraying dis- tances. All coatings displayed a bimodal microstructure consisting in partially melted zones surrounded by a fully melted matrix. α-Al2O3 and t′-ZrO2 constituted the main crystalline phases, but differences in the microstructure and properties of the coatings were observed. From these results, some relations between starting suspension and spraying parameters with coating characteristics were found. Thus the optimal spraying distance becomes shorter when the suspension solid loading increases.This work has been supported by the Spanish Ministry of Economy and Competitiveness, MINECO (project MAT2015-67586-C3-R). M.D. Salvador thanks CAPES – Programa Ciências sem Fronteiras (Brazil) for the concession of a PVE project N° A086/2013. A. Borrell acknowledges the MINECO for her Juan de la Cierva-Incorporación contract (IJCI-2014- 19839) and the Program to Support Research and Development (PAID00-15) of the Universitat Politècnica de València.ElsevierDepartamento de Ingeniería Mecánica y de MaterialesEscuela Técnica Superior de Ingeniería Industrial Instituto Universitario de Investigación de Tecnología de los Materiales de la UPVCoordenaçao de Aperfeiçoamento de Pessoal de Nível Superior, BrasilMinisterio de Economía, Industria y CompetitividadUniversitat Politècnica de ValènciaRepositorio Institucional de la Universitat Politècnica de València Riunet20162016-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/93301reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengCoordenaçao de Aperfeiçoamento de Pessoal de Nível Superior, Brasil https://doi.org/10.13039/501100002322 A086%2F2013 CAPES-PVEMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 IJCI-2014-19839 IJCI-2014-19839Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 MAT2015-67586-C3-3-R NUEVAS BARRERAS TERMICAS CON FUNCIONALIDAD AUTOSELLANTE OBTENIDAS MEDIANTE PROYECCION POR PLASMA: CARACTERIZACIONopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/933012026-06-13T07:49:27Z
dc.title.none.fl_str_mv Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
title Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
spellingShingle Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
Carpio-Cobo, Pablo
Plasma spraying
Suspensions
Thermal barrier coatings (TBC)
Alumina
Zirconia
CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA
title_short Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
title_full Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
title_fullStr Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
title_full_unstemmed Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
title_sort Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
dc.creator.none.fl_str_mv Carpio-Cobo, Pablo
Sanchez Vilches, Enrique
Moreno, Rodrigo
Salvador Moya, Mª Dolores|||0000-0002-4242-478X
Borrell Tomás, María Amparo|||0000-0003-4292-4538
author Carpio-Cobo, Pablo
author_facet Carpio-Cobo, Pablo
Sanchez Vilches, Enrique
Moreno, Rodrigo
Salvador Moya, Mª Dolores|||0000-0002-4242-478X
Borrell Tomás, María Amparo|||0000-0003-4292-4538
author_role author
author2 Sanchez Vilches, Enrique
Moreno, Rodrigo
Salvador Moya, Mª Dolores|||0000-0002-4242-478X
Borrell Tomás, María Amparo|||0000-0003-4292-4538
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Mecánica y de Materiales
Escuela Técnica Superior de Ingeniería Industrial
 Instituto Universitario de Investigación de Tecnología de los Materiales de la UPV
Coordenaçao de Aperfeiçoamento de Pessoal de Nível Superior, Brasil
Ministerio de Economía, Industria y Competitividad
Universitat Politècnica de València
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Plasma spraying
Suspensions
Thermal barrier coatings (TBC)
Alumina
Zirconia
CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA
topic Plasma spraying
Suspensions
Thermal barrier coatings (TBC)
Alumina
Zirconia
CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA
description [EN] Suspension plasma spraying (SPS) deposition represents an innovative technique to produce coatings that exhib- it improved properties. However, the key to obtain coatings with superior functional properties relies on the in- vestigation of the suspensions as starting materials. For this reason, the present work deals with the suspension preparation for SPS process and its influence on the resulting coatings. Laboratory-prepared 60/40 wt% alumina-zirconia suspensions were concentrated to avoid energy loss and were then successfully deposited by SPS technique. The liquid used was water instead of ethanol due to economical, environmental and safety reasons. The preparation of the suspension plays an important role in SPS process since stable and well-dispersed water suspensions are difficult to obtain. For this reason, colloidal behaviour characterisation of the starting particles as well as rheological optimisation of the feedstock suspensions was ad- dressed in this research. Suspensions with different solid loadings (up to 30 vol.% or 72 wt%) were deposited using several spraying dis- tances. All coatings displayed a bimodal microstructure consisting in partially melted zones surrounded by a fully melted matrix. α-Al2O3 and t′-ZrO2 constituted the main crystalline phases, but differences in the microstructure and properties of the coatings were observed. From these results, some relations between starting suspension and spraying parameters with coating characteristics were found. Thus the optimal spraying distance becomes shorter when the suspension solid loading increases.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/93301
url https://riunet.upv.es/handle/10251/93301
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Coordenaçao de Aperfeiçoamento de Pessoal de Nível Superior, Brasil https://doi.org/10.13039/501100002322 A086%2F2013 CAPES-PVE
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 IJCI-2014-19839 IJCI-2014-19839
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 MAT2015-67586-C3-3-R NUEVAS BARRERAS TERMICAS CON FUNCIONALIDAD AUTOSELLANTE OBTENIDAS MEDIANTE PROYECCION POR PLASMA: CARACTERIZACION
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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