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

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 i...

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Autores principales: Caruso, R., Pellegri, N., de Sanctis, O, Caracoche, María Cristina, Rivas, Patricia Claudia
Formato: Articulo
Lenguaje:Inglés
Publicado: 1994
Materias:
Ciencias Exactas
Física
zirconia
s01-gel process
coating
PAC technique
annealing
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/133951
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-133951
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
zirconia
s01-gel process
coating
PAC technique
annealing
spellingShingle Ciencias Exactas
Física
zirconia
s01-gel process
coating
PAC technique
annealing
Caruso, R.
Pellegri, N.
de Sanctis, O
Caracoche, María Cristina
Rivas, Patricia Claudia
ZrO2 phase structure in coating films and powders obtained by sol-gel process
topic_facet Ciencias Exactas
Física
zirconia
s01-gel process
coating
PAC technique
annealing
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.
format Articulo
Articulo
author Caruso, R.
Pellegri, N.
de Sanctis, O
Caracoche, María Cristina
Rivas, Patricia Claudia
author_facet Caruso, R.
Pellegri, N.
de Sanctis, O
Caracoche, María Cristina
Rivas, Patricia Claudia
author_sort Caruso, R.
title ZrO2 phase structure in coating films and powders obtained by sol-gel process
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
publishDate 1994
url http://sedici.unlp.edu.ar/handle/10915/133951
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AT caracochemariacristina zro2phasestructureincoatingfilmsandpowdersobtainedbysolgelprocess
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