Anelastic spectroscopy in Al2O3

Página do item simplificado
dc.contributor.authorGrandini, Carlos Roberto [UNESP]
dc.contributor.authorOliveira, R. L N [UNESP]
dc.contributor.authorMota, Rogério Pinto [UNESP]
dc.contributor.authorSantos, F. P.
dc.contributor.authorCampos, E.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEscola de Especialistas de Aeronáutica
dc.date.accessioned2014-05-27T11:21:44Z
dc.date.available2014-05-27T11:21:44Z
dc.date.issued2005-12-01
dc.description.abstractEngineering 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.en
dc.description.affiliationGrupo de Relaxações Anelásticas Departamento de Física UNESP, 17.033-360, Bauru, SP
dc.description.affiliationDepartamento de Fisica e Química Faculdade de Engenharia UNESP, 12.516-410, Guaratinguetá, SP
dc.description.affiliationEscola de Especialistas de Aeronáutica, 12.500-000, Guaratinguetá, SP
dc.description.affiliationUnespGrupo de Relaxações Anelásticas Departamento de Física UNESP, 17.033-360, Bauru, SP
dc.description.affiliationUnespDepartamento de Fisica e Química Faculdade de Engenharia UNESP, 12.516-410, Guaratinguetá, SP
dc.format.extent564-568
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/MSF.498-499.564
dc.identifier.citationMaterials Science Forum, v. 498-499, p. 564-568.
dc.identifier.doi10.4028/www.scientific.net/MSF.498-499.564
dc.identifier.issn0255-5476
dc.identifier.orcid0000-0002-3336-309X
dc.identifier.scopus2-s2.0-35248850257
dc.identifier.urihttp://hdl.handle.net/11449/68603
dc.identifier.wosWOS:000233984500092
dc.language.isoeng
dc.publisherTrans Tech Publications Ltd
dc.relation.ispartofMaterials Science Forum
dc.relation.ispartofsjr0,180
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAl2O3
dc.subjectElastic modulus
dc.subjectMechanical spectroscopy
dc.subjectStarch consolidation
dc.subjectBall bearings
dc.subjectCeramic materials
dc.subjectElastic moduli
dc.subjectMicroelectronics
dc.subjectWear resistance
dc.subjectAlumina
dc.titleAnelastic spectroscopy in Al2O3en
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.scientific.net/
unesp.author.lattes2949983867418338[1]
unesp.author.orcid0000-0002-3336-309X[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt
unesp.departmentFísica - FCpt
unesp.departmentFísica e Química - FEGpt

Arquivos

Coleções

Bauru - FC - Faculdade de Ciências
Guaratinguetá - FEG - Faculdade de Engenharia e Ciências