Anelastic spectroscopy in Al2O3

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.498-499.564
http://hdl.handle.net/11449/68603
Resumo: Engineering ceramics have found use in many applications, such as engine parts, ball bearings, artificial bone and hip replacements and gyroscopes, because of their good chemical inertness, hardness, high temperature stability and excellent wear resistance. Oxide ceramic may meet these demands. Alumina (Al2O3) ceramics offer a high potential for many engineering applications, such as wear- and/or corrosion-resistant components, and as material for substrates or housings in microelectronic devices. Alumina is used among other things for seal ring, draw-cones, guides, water mixing tapes, bearing parts, medical prostheses and cutting tools. Measurements of the elastic energy loss and modulus (anelastic spectroscopy) as a function of temperature can distinguish among the different atomic jumps, which occurs in the various phases or at different local ordering. In this paper, it is reported anelastic relaxation measurements in Al2O3 samples using commercial starch. These measurements were carried out in a torsion pendulum operating in frequencies around 40 Hz. The results shown strongly influence of the type of forming in the elastic modulus obtained by anelastic relaxation measurements.
id UNSP_03ea39e18d3c087fd25eb64fd889bb49
oai_identifier_str oai:repositorio.unesp.br:11449/68603
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Anelastic spectroscopy in Al2O3Al2O3Elastic modulusMechanical spectroscopyStarch consolidationBall bearingsCeramic materialsElastic moduliMicroelectronicsWear resistanceAluminaEngineering ceramics have found use in many applications, such as engine parts, ball bearings, artificial bone and hip replacements and gyroscopes, because of their good chemical inertness, hardness, high temperature stability and excellent wear resistance. Oxide ceramic may meet these demands. Alumina (Al2O3) ceramics offer a high potential for many engineering applications, such as wear- and/or corrosion-resistant components, and as material for substrates or housings in microelectronic devices. Alumina is used among other things for seal ring, draw-cones, guides, water mixing tapes, bearing parts, medical prostheses and cutting tools. Measurements of the elastic energy loss and modulus (anelastic spectroscopy) as a function of temperature can distinguish among the different atomic jumps, which occurs in the various phases or at different local ordering. In this paper, it is reported anelastic relaxation measurements in Al2O3 samples using commercial starch. These measurements were carried out in a torsion pendulum operating in frequencies around 40 Hz. The results shown strongly influence of the type of forming in the elastic modulus obtained by anelastic relaxation measurements.Grupo de Relaxações Anelásticas Departamento de Física UNESP, 17.033-360, Bauru, SPDepartamento de Fisica e Química Faculdade de Engenharia UNESP, 12.516-410, Guaratinguetá, SPEscola de Especialistas de Aeronáutica, 12.500-000, Guaratinguetá, SPGrupo de Relaxações Anelásticas Departamento de Física UNESP, 17.033-360, Bauru, SPDepartamento de Fisica e Química Faculdade de Engenharia UNESP, 12.516-410, Guaratinguetá, SPTrans Tech Publications LtdUniversidade Estadual Paulista (Unesp)Escola de Especialistas de AeronáuticaGrandini, 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/conferenceObject564-568http://dx.doi.org/10.4028/www.scientific.net/MSF.498-499.564Materials Science Forum, v. 498-499, p. 564-568.0255-5476http://hdl.handle.net/11449/6860310.4028/www.scientific.net/MSF.498-499.564WOS:0002339845000922-s2.0-352488502570000-0002-3336-309XScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Science Forum0,180info:eu-repo/semantics/openAccess2024-07-01T20:52:56Zoai:repositorio.unesp.br:11449/68603Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:54:14.145985Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Anelastic spectroscopy in Al2O3
title Anelastic spectroscopy in Al2O3
spellingShingle Anelastic spectroscopy in Al2O3
Grandini, Carlos Roberto [UNESP]
Al2O3
Elastic modulus
Mechanical spectroscopy
Starch consolidation
Ball bearings
Ceramic materials
Elastic moduli
Microelectronics
Wear resistance
Alumina
title_short Anelastic spectroscopy in Al2O3
title_full Anelastic spectroscopy in Al2O3
title_fullStr Anelastic spectroscopy in Al2O3
title_full_unstemmed Anelastic spectroscopy in Al2O3
title_sort Anelastic spectroscopy in Al2O3
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
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 Al2O3
Elastic modulus
Mechanical spectroscopy
Starch consolidation
Ball bearings
Ceramic materials
Elastic moduli
Microelectronics
Wear resistance
Alumina
topic Al2O3
Elastic modulus
Mechanical spectroscopy
Starch consolidation
Ball bearings
Ceramic materials
Elastic moduli
Microelectronics
Wear resistance
Alumina
description Engineering ceramics have found use in many applications, such as engine parts, ball bearings, artificial bone and hip replacements and gyroscopes, because of their good chemical inertness, hardness, high temperature stability and excellent wear resistance. Oxide ceramic may meet these demands. Alumina (Al2O3) ceramics offer a high potential for many engineering applications, such as wear- and/or corrosion-resistant components, and as material for substrates or housings in microelectronic devices. Alumina is used among other things for seal ring, draw-cones, guides, water mixing tapes, bearing parts, medical prostheses and cutting tools. Measurements of the elastic energy loss and modulus (anelastic spectroscopy) as a function of temperature can distinguish among the different atomic jumps, which occurs in the various phases or at different local ordering. In this paper, it is reported anelastic relaxation measurements in Al2O3 samples using commercial starch. These measurements were carried out in a torsion pendulum operating in frequencies around 40 Hz. The results shown strongly influence of the type of forming in the elastic modulus obtained by anelastic relaxation measurements.
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.498-499.564
Materials Science Forum, v. 498-499, p. 564-568.
0255-5476
http://hdl.handle.net/11449/68603
10.4028/www.scientific.net/MSF.498-499.564
WOS:000233984500092
2-s2.0-35248850257
0000-0002-3336-309X
url http://dx.doi.org/10.4028/www.scientific.net/MSF.498-499.564
http://hdl.handle.net/11449/68603
identifier_str_mv Materials Science Forum, v. 498-499, p. 564-568.
0255-5476
10.4028/www.scientific.net/MSF.498-499.564
WOS:000233984500092
2-s2.0-35248850257
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 564-568
dc.publisher.none.fl_str_mv Trans Tech Publications Ltd
publisher.none.fl_str_mv Trans Tech Publications Ltd
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_ 1808129471864111104