Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/ma6051967 http://hdl.handle.net/11449/76265 |
Resumo: | The unique properties of ceramic foams enable their use in a variety of applications. This work investigated the effects of different parameters on the production of zirconia ceramic foam using the sol-gel process associated with liquid foam templates. Evaluation was made of the influence of the thermal treatment temperature on the porous and crystalline characteristics of foams manufactured using different amounts of sodium dodecylsulfate (SDS) surfactant. A maximum pore volume, with high porosity (94%) and a bimodal pore size distribution, was observed for the ceramic foam produced with 10% SDS. Macropores, with an average size of around 30 μm, were obtained irrespective of the SDS amount, while the average size of the supermesopores increased systematically as the SDS amount was increased up to 10%, after which it decreased. X-ray diffraction analyses showed that the sample treated at 500 °C was amorphous, while crystallization into a tetragonal metastable phase occurred at 600 °C due to the presence of sulfate groups in the zirconia structure. At 800 and 1000 °C the monoclinic phase was observed, which is thermodynamically stable at these temperatures. © 2013 by the authors; licensee MDPI, Basel, Switzerland. |
id |
UNSP_0b9e2a282fd659aeae7351bb10afeeaa |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/76265 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foamsCeramic foamLiquid-foam templatesSol-gelSurfactantThermal treatmentBimodal pore size distributionCrystalline characteristicMetastable phaseMonoclinic phaseThermal treatment temperatureThermodynamically stableZirconia ceramicHeat treatmentLiquidsSodium dodecyl sulfateSol-gel processSurface active agentsX ray diffractionX ray diffraction analysisZirconiaCeramic foamsThe unique properties of ceramic foams enable their use in a variety of applications. This work investigated the effects of different parameters on the production of zirconia ceramic foam using the sol-gel process associated with liquid foam templates. Evaluation was made of the influence of the thermal treatment temperature on the porous and crystalline characteristics of foams manufactured using different amounts of sodium dodecylsulfate (SDS) surfactant. A maximum pore volume, with high porosity (94%) and a bimodal pore size distribution, was observed for the ceramic foam produced with 10% SDS. Macropores, with an average size of around 30 μm, were obtained irrespective of the SDS amount, while the average size of the supermesopores increased systematically as the SDS amount was increased up to 10%, after which it decreased. X-ray diffraction analyses showed that the sample treated at 500 °C was amorphous, while crystallization into a tetragonal metastable phase occurred at 600 °C due to the presence of sulfate groups in the zirconia structure. At 800 and 1000 °C the monoclinic phase was observed, which is thermodynamically stable at these temperatures. © 2013 by the authors; licensee MDPI, Basel, Switzerland.Institute of Chemistry Universidade Estadual Paulista-UNESP, P.O.BOX 355, Araraquara 14800-900Institute of Chemistry Universidade Estadual Paulista-UNESP, P.O.BOX 355, Araraquara 14800-900Universidade Estadual Paulista (Unesp)Beozzo, Cristiane Carolina [UNESP]Alves-Rosa, Marinalva Aparecida [UNESP]Pulcinelli, Sandra Helena [UNESP]Santilli, Celso Valentim [UNESP]2014-05-27T11:30:09Z2014-05-27T11:30:09Z2013-08-14info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1967-1979http://dx.doi.org/10.3390/ma6051967Materials, v. 6, n. 5, p. 1967-1979, 2013.1996-1944http://hdl.handle.net/11449/7626510.3390/ma6051967WOS:0003194406000262-s2.0-84881277339997120258528696755842986818708650000-0002-8356-8093Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials2.4670,732info:eu-repo/semantics/openAccess2021-10-22T17:27:54Zoai:repositorio.unesp.br:11449/76265Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T17:27:54Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams |
title |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams |
spellingShingle |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams Beozzo, Cristiane Carolina [UNESP] Ceramic foam Liquid-foam templates Sol-gel Surfactant Thermal treatment Bimodal pore size distribution Crystalline characteristic Metastable phase Monoclinic phase Thermal treatment temperature Thermodynamically stable Zirconia ceramic Heat treatment Liquids Sodium dodecyl sulfate Sol-gel process Surface active agents X ray diffraction X ray diffraction analysis Zirconia Ceramic foams |
title_short |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams |
title_full |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams |
title_fullStr |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams |
title_full_unstemmed |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams |
title_sort |
Liquid foam templates associated with the sol-gel process for production of zirconia ceramic foams |
author |
Beozzo, Cristiane Carolina [UNESP] |
author_facet |
Beozzo, Cristiane Carolina [UNESP] Alves-Rosa, Marinalva Aparecida [UNESP] Pulcinelli, Sandra Helena [UNESP] Santilli, Celso Valentim [UNESP] |
author_role |
author |
author2 |
Alves-Rosa, Marinalva Aparecida [UNESP] Pulcinelli, Sandra Helena [UNESP] Santilli, Celso Valentim [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Beozzo, Cristiane Carolina [UNESP] Alves-Rosa, Marinalva Aparecida [UNESP] Pulcinelli, Sandra Helena [UNESP] Santilli, Celso Valentim [UNESP] |
dc.subject.por.fl_str_mv |
Ceramic foam Liquid-foam templates Sol-gel Surfactant Thermal treatment Bimodal pore size distribution Crystalline characteristic Metastable phase Monoclinic phase Thermal treatment temperature Thermodynamically stable Zirconia ceramic Heat treatment Liquids Sodium dodecyl sulfate Sol-gel process Surface active agents X ray diffraction X ray diffraction analysis Zirconia Ceramic foams |
topic |
Ceramic foam Liquid-foam templates Sol-gel Surfactant Thermal treatment Bimodal pore size distribution Crystalline characteristic Metastable phase Monoclinic phase Thermal treatment temperature Thermodynamically stable Zirconia ceramic Heat treatment Liquids Sodium dodecyl sulfate Sol-gel process Surface active agents X ray diffraction X ray diffraction analysis Zirconia Ceramic foams |
description |
The unique properties of ceramic foams enable their use in a variety of applications. This work investigated the effects of different parameters on the production of zirconia ceramic foam using the sol-gel process associated with liquid foam templates. Evaluation was made of the influence of the thermal treatment temperature on the porous and crystalline characteristics of foams manufactured using different amounts of sodium dodecylsulfate (SDS) surfactant. A maximum pore volume, with high porosity (94%) and a bimodal pore size distribution, was observed for the ceramic foam produced with 10% SDS. Macropores, with an average size of around 30 μm, were obtained irrespective of the SDS amount, while the average size of the supermesopores increased systematically as the SDS amount was increased up to 10%, after which it decreased. X-ray diffraction analyses showed that the sample treated at 500 °C was amorphous, while crystallization into a tetragonal metastable phase occurred at 600 °C due to the presence of sulfate groups in the zirconia structure. At 800 and 1000 °C the monoclinic phase was observed, which is thermodynamically stable at these temperatures. © 2013 by the authors; licensee MDPI, Basel, Switzerland. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-08-14 2014-05-27T11:30:09Z 2014-05-27T11:30:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3390/ma6051967 Materials, v. 6, n. 5, p. 1967-1979, 2013. 1996-1944 http://hdl.handle.net/11449/76265 10.3390/ma6051967 WOS:000319440600026 2-s2.0-84881277339 9971202585286967 5584298681870865 0000-0002-8356-8093 |
url |
http://dx.doi.org/10.3390/ma6051967 http://hdl.handle.net/11449/76265 |
identifier_str_mv |
Materials, v. 6, n. 5, p. 1967-1979, 2013. 1996-1944 10.3390/ma6051967 WOS:000319440600026 2-s2.0-84881277339 9971202585286967 5584298681870865 0000-0002-8356-8093 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Materials 2.467 0,732 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1967-1979 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964702193745920 |