Anelastic spectroscopy in TiO2

Detalhes bibliográficos
Autor(a) principal: Grandini, Carlos Roberto [UNESP]
Data de Publicação: 2005
Outros Autores: Oliveira, R. L N [UNESP], Mota, Rogério Pinto [UNESP], Santos, F. P., Campos, E.
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.4028/www.scientific.net/MSF.498-499.540
http://hdl.handle.net/11449/68602
Resumo: Titanium dioxide (rutile) has a lot of interesting and useful features and hence is widely utilized for application. It has been used as white pigment, photocatalyst, biocompatible material and semiconductor material used in solar battery. In semiconducting TiO2 oxygen vacancies are said to play an important role in the electrical conduction. Measurements of the elastic energy loss and modulus (anelastic spectroscopy) as a function of temperature can distinguish among the different atomic jumps, which occur in the various phases or at different local ordering. In this paper, it is reported anelastic relaxation measurements in TiO2 samples using a torsion pendulum operating in frequencies around 40Hz, in the temperature range between -173°C to 330°C with heating rate of 1°C/min. The results shown a reduction in the elasticity modulus with the increase in the corn starch content used for this consolidation.
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spelling Anelastic spectroscopy in TiO2Anelastic spectroscopyMobility of atomsRelaxationTitanium dioxideEnergy dissipationFunction evaluationPigmentsRelaxation processesSolar cellsSpectroscopic analysisTitanium dioxide (rutile) has a lot of interesting and useful features and hence is widely utilized for application. It has been used as white pigment, photocatalyst, biocompatible material and semiconductor material used in solar battery. In semiconducting TiO2 oxygen vacancies are said to play an important role in the electrical conduction. Measurements of the elastic energy loss and modulus (anelastic spectroscopy) as a function of temperature can distinguish among the different atomic jumps, which occur in the various phases or at different local ordering. In this paper, it is reported anelastic relaxation measurements in TiO2 samples using a torsion pendulum operating in frequencies around 40Hz, in the temperature range between -173°C to 330°C with heating rate of 1°C/min. The results shown a reduction in the elasticity modulus with the increase in the corn starch content used for this consolidation.Grupo de Relaxações Anelásticas Departamento de Física UNESP, 17033-360, Bauru, SPLaboratório de Plasmas Departamento de Física e Química UNESP, 12516-410, Guaratinguetá, SPEscola de Especialistas de Aeronáutica (EEAR), 12500-000, Guaratinguetá, SPGrupo de Relaxações Anelásticas Departamento de Física UNESP, 17033-360, Bauru, SPLaboratório de Plasmas Departamento de Física e Química UNESP, 12516-410, Guaratinguetá, SPUniversidade Estadual Paulista (Unesp)Escola de Especialistas de Aeronáutica (EEAR)Grandini, Carlos Roberto [UNESP]Oliveira, R. L N [UNESP]Mota, Rogério Pinto [UNESP]Santos, F. P.Campos, E.2014-05-27T11:21:44Z2014-05-27T11:21:44Z2005-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject540-545http://dx.doi.org/10.4028/www.scientific.net/MSF.498-499.540Materials Science Forum, v. 498-499, p. 540-545.0255-5476http://hdl.handle.net/11449/6860210.4028/www.scientific.net/MSF.498-499.540WOS:0002339845000882-s2.0-352488797130000-0002-3336-309XScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Science Forum0,180info:eu-repo/semantics/openAccess2024-04-25T17:40:55Zoai:repositorio.unesp.br:11449/68602Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-25T17:40:55Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Anelastic spectroscopy in TiO2
title Anelastic spectroscopy in TiO2
spellingShingle Anelastic spectroscopy in TiO2
Grandini, Carlos Roberto [UNESP]
Anelastic spectroscopy
Mobility of atoms
Relaxation
Titanium dioxide
Energy dissipation
Function evaluation
Pigments
Relaxation processes
Solar cells
Spectroscopic analysis
title_short Anelastic spectroscopy in TiO2
title_full Anelastic spectroscopy in TiO2
title_fullStr Anelastic spectroscopy in TiO2
title_full_unstemmed Anelastic spectroscopy in TiO2
title_sort Anelastic spectroscopy in TiO2
author Grandini, Carlos Roberto [UNESP]
author_facet Grandini, Carlos Roberto [UNESP]
Oliveira, R. L N [UNESP]
Mota, Rogério Pinto [UNESP]
Santos, F. P.
Campos, E.
author_role author
author2 Oliveira, R. L N [UNESP]
Mota, Rogério Pinto [UNESP]
Santos, F. P.
Campos, E.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Escola de Especialistas de Aeronáutica (EEAR)
dc.contributor.author.fl_str_mv Grandini, Carlos Roberto [UNESP]
Oliveira, R. L N [UNESP]
Mota, Rogério Pinto [UNESP]
Santos, F. P.
Campos, E.
dc.subject.por.fl_str_mv Anelastic spectroscopy
Mobility of atoms
Relaxation
Titanium dioxide
Energy dissipation
Function evaluation
Pigments
Relaxation processes
Solar cells
Spectroscopic analysis
topic Anelastic spectroscopy
Mobility of atoms
Relaxation
Titanium dioxide
Energy dissipation
Function evaluation
Pigments
Relaxation processes
Solar cells
Spectroscopic analysis
description Titanium dioxide (rutile) has a lot of interesting and useful features and hence is widely utilized for application. It has been used as white pigment, photocatalyst, biocompatible material and semiconductor material used in solar battery. In semiconducting TiO2 oxygen vacancies are said to play an important role in the electrical conduction. Measurements of the elastic energy loss and modulus (anelastic spectroscopy) as a function of temperature can distinguish among the different atomic jumps, which occur in the various phases or at different local ordering. In this paper, it is reported anelastic relaxation measurements in TiO2 samples using a torsion pendulum operating in frequencies around 40Hz, in the temperature range between -173°C to 330°C with heating rate of 1°C/min. The results shown a reduction in the elasticity modulus with the increase in the corn starch content used for this consolidation.
publishDate 2005
dc.date.none.fl_str_mv 2005-12-01
2014-05-27T11:21:44Z
2014-05-27T11:21:44Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.4028/www.scientific.net/MSF.498-499.540
Materials Science Forum, v. 498-499, p. 540-545.
0255-5476
http://hdl.handle.net/11449/68602
10.4028/www.scientific.net/MSF.498-499.540
WOS:000233984500088
2-s2.0-35248879713
0000-0002-3336-309X
url http://dx.doi.org/10.4028/www.scientific.net/MSF.498-499.540
http://hdl.handle.net/11449/68602
identifier_str_mv Materials Science Forum, v. 498-499, p. 540-545.
0255-5476
10.4028/www.scientific.net/MSF.498-499.540
WOS:000233984500088
2-s2.0-35248879713
0000-0002-3336-309X
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Science Forum
0,180
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 540-545
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_ 1797790415398633472

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