Internal Residual Stress Measurements in a Bioactive Glass-Ceramic Using Vickers Indentation

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Ponta Grossa (UEPG)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorPeitl, Oscar-
Autor(es): dc.creatorSerbena, Francisco C.-
Autor(es): dc.creatorMastelaro, Valmor R. [UNESP]-
Autor(es): dc.creatorZanotto, Edgar D.-
Data de aceite: dc.date.accessioned2022-02-22T00:03:39Z-
Data de disponibilização: dc.date.available2022-02-22T00:03:39Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2010-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/j.1551-2916.2010.03717.x-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/194717-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/194717-
Descrição: dc.descriptionThe residual stress distribution that arises in the glass matrix during cooling of a partially crystallized 17.2Na(2)O-32.1CaO-48.1SiO(2)-2.5P(2)O(5) (mol%) bioactive glass-ceramic was measured using the Vickers indentation method proposed by Zeng and Rowcliffe (ZR). The magnitude of the determined residual stress at the crystal/glass boundary was 1/4-1/3 of the values measured using X-ray diffraction (within the crystals) and calculated using Selsing's model. A correction for the crack geometry factor, assuming a semi-elliptical shape, is proposed and then good agreement between experimental and theoretical values is found. Thus, if the actual crack geometry is taken into account, the indentation technique of ZR can be successfully used. In addition, a numerical model for the calculation of residual stresses that takes into account the hemispherical shape of the crystalline precipitates at a free surface was developed. The result is that near the sample surface, the radial component of the residual stress is increased by 70% in comparison with the residual stress calculated by Selsing's model.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionState Univ Ponta Grossa UEPG, Dept Phys, BR-84030900 Ponta Grossa, PR, Brazil-
Descrição: dc.descriptionUniv Fed Sao Carlos, Dept Mat Engn, Vitreous Mat Lab, BR-13565905 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionState Univ Sao Paulo USP Sao Carlos, Phys Inst Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionState Univ Sao Paulo USP Sao Carlos, Phys Inst Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionCNPq: 151917/2006-0-
Descrição: dc.descriptionFAPESP: 07/08179-9-
Formato: dc.format2359-2368-
Idioma: dc.languageen-
Publicador: dc.publisherWiley-Blackwell-
Relação: dc.relationJournal Of The American Ceramic Society-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleInternal Residual Stress Measurements in a Bioactive Glass-Ceramic Using Vickers Indentation-
Tipo de arquivo: dc.typelivro digital-
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