Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/216144 |
Resumo: | In this work, sol-gel/dip-coating process for obtaining yttria stabilized zirconia (YSZ, ZrO2–8% Y2O3) films deposited onto LSM-YSZ (lanthanum strontium manganite (LSM, La0.7Sr0.3MnO3) mixed with YSZ) with different proportions (20/80, 50/50, 80/20) was investigated. The films were deposited on substrate varying the number of layers deposited. LSM powders were obtained by the combustion method using metal nitrates and urea and YSZ was commercial. LSM-YSZ composite powders were obtained by the solid state method, through ball-milling of a mixture of LSM-YSZ (mass ratio) powder for 4 h with 500 rpm using ZrO2 balls as milling media. For LSMYSZ substrate a study of sintering temperature was performed, where the optimum sintering temperature for each LSM-YSZ studied proportion was obtained. According to our results, it was found that 1100 ºC is the optimum sintering temperature for 20/80, 950 ºC is the optimum sintering temperature for 50/50 and 900 ºC is the optimum sintering temperature for 80/20 because of the good phase formation. The films were characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The films showed LSM, YSZ, SrZrO3 and La2O3 phases. Crack-free, homogeneous and well adhered films were obtained with a thickness between 3 and 38 μm. In this work, YSZ films with appropriate thickness were obtained for application as SOFC electrolyte. |
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Marrero, Jacqueline CostaSouza, Mariana de Mattos Vieira MelloMalfatti, Célia de Fraga2020-12-05T04:27:42Z20191517-7076http://hdl.handle.net/10183/216144001118955In this work, sol-gel/dip-coating process for obtaining yttria stabilized zirconia (YSZ, ZrO2–8% Y2O3) films deposited onto LSM-YSZ (lanthanum strontium manganite (LSM, La0.7Sr0.3MnO3) mixed with YSZ) with different proportions (20/80, 50/50, 80/20) was investigated. The films were deposited on substrate varying the number of layers deposited. LSM powders were obtained by the combustion method using metal nitrates and urea and YSZ was commercial. LSM-YSZ composite powders were obtained by the solid state method, through ball-milling of a mixture of LSM-YSZ (mass ratio) powder for 4 h with 500 rpm using ZrO2 balls as milling media. For LSMYSZ substrate a study of sintering temperature was performed, where the optimum sintering temperature for each LSM-YSZ studied proportion was obtained. According to our results, it was found that 1100 ºC is the optimum sintering temperature for 20/80, 950 ºC is the optimum sintering temperature for 50/50 and 900 ºC is the optimum sintering temperature for 80/20 because of the good phase formation. The films were characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The films showed LSM, YSZ, SrZrO3 and La2O3 phases. Crack-free, homogeneous and well adhered films were obtained with a thickness between 3 and 38 μm. In this work, YSZ films with appropriate thickness were obtained for application as SOFC electrolyte.application/pdfengRevista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 25, n. 4 (2019), Art. e-12486,, [7] p.ZircôniaLantânioCaracterização físico-químicaFilmes finosYSZ filmsLSM-YSZ substrateSOFCDip-coatingPreparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportionsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001118955.pdf.txt001118955.pdf.txtExtracted Texttext/plain20918http://www.lume.ufrgs.br/bitstream/10183/216144/2/001118955.pdf.txt7f6a9c9e5fa833462ec08514b6442170MD52ORIGINAL001118955.pdfTexto completo (inglês)application/pdf288163http://www.lume.ufrgs.br/bitstream/10183/216144/1/001118955.pdf6f29845138a9bd2961e71861ebe2ceceMD5110183/2161442021-03-09 04:28:24.387653oai:www.lume.ufrgs.br:10183/216144Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-03-09T07:28:24Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions |
title |
Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions |
spellingShingle |
Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions Marrero, Jacqueline Costa Zircônia Lantânio Caracterização físico-química Filmes finos YSZ films LSM-YSZ substrate SOFC Dip-coating |
title_short |
Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions |
title_full |
Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions |
title_fullStr |
Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions |
title_full_unstemmed |
Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions |
title_sort |
Preparation and characterization of yttria stabilized zirconia (YSZ) films deposited by dip-coating on LSM-YSZ substrate with different proportions |
author |
Marrero, Jacqueline Costa |
author_facet |
Marrero, Jacqueline Costa Souza, Mariana de Mattos Vieira Mello Malfatti, Célia de Fraga |
author_role |
author |
author2 |
Souza, Mariana de Mattos Vieira Mello Malfatti, Célia de Fraga |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Marrero, Jacqueline Costa Souza, Mariana de Mattos Vieira Mello Malfatti, Célia de Fraga |
dc.subject.por.fl_str_mv |
Zircônia Lantânio Caracterização físico-química Filmes finos |
topic |
Zircônia Lantânio Caracterização físico-química Filmes finos YSZ films LSM-YSZ substrate SOFC Dip-coating |
dc.subject.eng.fl_str_mv |
YSZ films LSM-YSZ substrate SOFC Dip-coating |
description |
In this work, sol-gel/dip-coating process for obtaining yttria stabilized zirconia (YSZ, ZrO2–8% Y2O3) films deposited onto LSM-YSZ (lanthanum strontium manganite (LSM, La0.7Sr0.3MnO3) mixed with YSZ) with different proportions (20/80, 50/50, 80/20) was investigated. The films were deposited on substrate varying the number of layers deposited. LSM powders were obtained by the combustion method using metal nitrates and urea and YSZ was commercial. LSM-YSZ composite powders were obtained by the solid state method, through ball-milling of a mixture of LSM-YSZ (mass ratio) powder for 4 h with 500 rpm using ZrO2 balls as milling media. For LSMYSZ substrate a study of sintering temperature was performed, where the optimum sintering temperature for each LSM-YSZ studied proportion was obtained. According to our results, it was found that 1100 ºC is the optimum sintering temperature for 20/80, 950 ºC is the optimum sintering temperature for 50/50 and 900 ºC is the optimum sintering temperature for 80/20 because of the good phase formation. The films were characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The films showed LSM, YSZ, SrZrO3 and La2O3 phases. Crack-free, homogeneous and well adhered films were obtained with a thickness between 3 and 38 μm. In this work, YSZ films with appropriate thickness were obtained for application as SOFC electrolyte. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019 |
dc.date.accessioned.fl_str_mv |
2020-12-05T04:27:42Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/216144 |
dc.identifier.issn.pt_BR.fl_str_mv |
1517-7076 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001118955 |
identifier_str_mv |
1517-7076 001118955 |
url |
http://hdl.handle.net/10183/216144 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Revista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 25, n. 4 (2019), Art. e-12486,, [7] p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
dc.source.none.fl_str_mv |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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http://www.lume.ufrgs.br/bitstream/10183/216144/2/001118955.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/216144/1/001118955.pdf |
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