Determination of Population Size of Glass-like Carbon Sampling Used in Weibull Analysis

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dc.contributor.authorPaula, Cyntia C.
dc.contributor.authorBotelho, Edson Cocchieri [UNESP]
dc.contributor.authorNeto, Piorino
dc.contributor.authorRezende, Mirabel C.
dc.contributor.institutionInstituto Tecnológico de Aeronáutica (ITA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCtr Tecn Aeroesp
dc.date.accessioned2014-05-20T13:28:24Z
dc.date.available2014-05-20T13:28:24Z
dc.date.issued2010-07-01
dc.description.abstractWeibull analysis is a statistical tool that can be used to support the processing optimization of fragile materials. In this context, this work presents a study about the probability of failure of a carbon material named glass-like carbon (GC) based on this tool. GC is a fragile material that has presented increasing importance in different fields, for example, optical, medical and electrochemical areas. Thus, GC samples based on polyfurfuryl alcohol heat treated under nitrogen atmosphere were prepared and afterwards characterized by flexural strength tests. The Weibull modulus of different sampling size (population of 5, 10, 15, 20, 25 and 30 specimens) of polymerized resin and GC samples were evaluated in order to determine the minimum number of specimens necessary to guarantee the Weibull analysis efficiency. The results show that the minimum sample population equals 20 for both GC and polymerized resin specimens assures the method's trustworthiness. Larger sample population does not present significant variation in the Weibull moduli.en
dc.description.affiliationInst Tecnol Aeronaut, Depto Engn Aeronaut & Mecan, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationSão Paulo State Univ UNESP, Dept Mat & Technol, Guaratingueta, SP, Brazil
dc.description.affiliationCtr Tecn Aeroesp, Inst Aeronaut & Espaco, Div Mat, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ UNESP, Dept Mat & Technol, Guaratingueta, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 98/07439-6
dc.description.sponsorshipIdFAPESP: 02/01288-3
dc.description.sponsorshipIdCNPq: 301583/2006-4
dc.format.extent31-39
dc.identifierhttp://www.sampe.org/news/jam/2010/2010jamissue3.aspx
dc.identifier.citationJournal of Advanced Materials. Covina: Sampe Publishers, v. 42, n. 3, p. 31-39, 2010.
dc.identifier.issn1070-9789
dc.identifier.lattes4378078337343660
dc.identifier.orcid0000-0001-8338-4879
dc.identifier.urihttp://hdl.handle.net/11449/9445
dc.identifier.wosWOS:000284517300004
dc.language.isoeng
dc.publisherSampe Publishers
dc.relation.ispartofJournal of Advanced Materials
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleDetermination of Population Size of Glass-like Carbon Sampling Used in Weibull Analysisen
dc.typeArtigo
dcterms.rightsHolderSampe Publishers
unesp.author.lattes4378078337343660[2]
unesp.author.orcid0000-0001-8338-4879[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt
unesp.departmentMateriais e Tecnologia - FEGpt

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Guaratinguetá - FEG - Faculdade de Engenharia e Ciências