ZrO2 phase structure in coating films and powders obtained by sol-gel process

Autores
Caruso, R.; Pellegri, N.; de Sanctis, O; Caracoche, María Cristina; Rivas, Patricia Claudia
Año de publicación
1994
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Zirconia coating film and powder obtained by the sol-gel route using zirconium n-propoxide as starting material and acid catalyst were investigated by the Perturbed Angular Correlations method, X-Ray Diffraction and Differential Scanning Calorimetry and Differential Thermal Analyses. The hyperfine interaction, measured after annealing the samples at increasing temperatures up to 1100°C, allowed to distinguish five different zirconium neighborhoods. Two of them describe rather disordered material which, on heating, crystallizes to the tetragonal phase and end finally in monoclinic zirconia. As compared with the powder, the film exhibits a minor fraction of an unidentified ordered form and a higher and more stable fraction of tetragonal phase. In addition, the tetragonal to monoclinic conversion takes place at higher temperatures and with a larger activation energy.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
zirconia
s01-gel process
coating
PAC technique
annealing
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/133951

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oai_identifier_str oai:sedici.unlp.edu.ar:10915/133951
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling ZrO2 phase structure in coating films and powders obtained by sol-gel processCaruso, R.Pellegri, N.de Sanctis, OCaracoche, María CristinaRivas, Patricia ClaudiaCiencias ExactasFísicazirconias01-gel processcoatingPAC techniqueannealingZirconia coating film and powder obtained by the sol-gel route using zirconium n-propoxide as starting material and acid catalyst were investigated by the Perturbed Angular Correlations method, X-Ray Diffraction and Differential Scanning Calorimetry and Differential Thermal Analyses. The hyperfine interaction, measured after annealing the samples at increasing temperatures up to 1100°C, allowed to distinguish five different zirconium neighborhoods. Two of them describe rather disordered material which, on heating, crystallizes to the tetragonal phase and end finally in monoclinic zirconia. As compared with the powder, the film exhibits a minor fraction of an unidentified ordered form and a higher and more stable fraction of tetragonal phase. In addition, the tetragonal to monoclinic conversion takes place at higher temperatures and with a larger activation energy.Facultad de Ciencias Exactas1994info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf241-247http://sedici.unlp.edu.ar/handle/10915/133951enginfo:eu-repo/semantics/altIdentifier/issn/0928-0707info:eu-repo/semantics/altIdentifier/issn/1573-4846info:eu-repo/semantics/altIdentifier/doi/10.1007/bf00486563info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:31:48Zoai:sedici.unlp.edu.ar:10915/133951Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:48.238SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv ZrO2 phase structure in coating films and powders obtained by sol-gel process
title ZrO2 phase structure in coating films and powders obtained by sol-gel process
spellingShingle ZrO2 phase structure in coating films and powders obtained by sol-gel process
Caruso, R.
Ciencias Exactas
Física
zirconia
s01-gel process
coating
PAC technique
annealing
title_short ZrO2 phase structure in coating films and powders obtained by sol-gel process
title_full ZrO2 phase structure in coating films and powders obtained by sol-gel process
title_fullStr ZrO2 phase structure in coating films and powders obtained by sol-gel process
title_full_unstemmed ZrO2 phase structure in coating films and powders obtained by sol-gel process
title_sort ZrO2 phase structure in coating films and powders obtained by sol-gel process
dc.creator.none.fl_str_mv Caruso, R.
Pellegri, N.
de Sanctis, O
Caracoche, María Cristina
Rivas, Patricia Claudia
author Caruso, R.
author_facet Caruso, R.
Pellegri, N.
de Sanctis, O
Caracoche, María Cristina
Rivas, Patricia Claudia
author_role author
author2 Pellegri, N.
de Sanctis, O
Caracoche, María Cristina
Rivas, Patricia Claudia
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
zirconia
s01-gel process
coating
PAC technique
annealing
topic Ciencias Exactas
Física
zirconia
s01-gel process
coating
PAC technique
annealing
dc.description.none.fl_txt_mv Zirconia coating film and powder obtained by the sol-gel route using zirconium n-propoxide as starting material and acid catalyst were investigated by the Perturbed Angular Correlations method, X-Ray Diffraction and Differential Scanning Calorimetry and Differential Thermal Analyses. The hyperfine interaction, measured after annealing the samples at increasing temperatures up to 1100°C, allowed to distinguish five different zirconium neighborhoods. Two of them describe rather disordered material which, on heating, crystallizes to the tetragonal phase and end finally in monoclinic zirconia. As compared with the powder, the film exhibits a minor fraction of an unidentified ordered form and a higher and more stable fraction of tetragonal phase. In addition, the tetragonal to monoclinic conversion takes place at higher temperatures and with a larger activation energy.
Facultad de Ciencias Exactas
description Zirconia coating film and powder obtained by the sol-gel route using zirconium n-propoxide as starting material and acid catalyst were investigated by the Perturbed Angular Correlations method, X-Ray Diffraction and Differential Scanning Calorimetry and Differential Thermal Analyses. The hyperfine interaction, measured after annealing the samples at increasing temperatures up to 1100°C, allowed to distinguish five different zirconium neighborhoods. Two of them describe rather disordered material which, on heating, crystallizes to the tetragonal phase and end finally in monoclinic zirconia. As compared with the powder, the film exhibits a minor fraction of an unidentified ordered form and a higher and more stable fraction of tetragonal phase. In addition, the tetragonal to monoclinic conversion takes place at higher temperatures and with a larger activation energy.
publishDate 1994
dc.date.none.fl_str_mv 1994
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/133951
url http://sedici.unlp.edu.ar/handle/10915/133951
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0928-0707
info:eu-repo/semantics/altIdentifier/issn/1573-4846
info:eu-repo/semantics/altIdentifier/doi/10.1007/bf00486563
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
241-247
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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