Anelastic spectroscopy in Al2O3
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , |
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. |
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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 |
|
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1808129471864111104 |