Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorEscola Especialistas Aeronaut-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorInst Aeronaut & Espaco-
Autor(es): dc.creatorAlgatti, Mauricio A. [UNESP]-
Autor(es): dc.creatorSantos, Carlos N. [UNESP]-
Autor(es): dc.creatorMota, Rogerio P. [UNESP]-
Autor(es): dc.creatorCampos, Elson de [UNESP]-
Autor(es): dc.creatorLucena, Emerson F.-
Autor(es): dc.creatorMachida, Munemasa-
Autor(es): dc.creatorMelo, Francisco C. L.-
Autor(es): dc.creatorIEEE-
Data de aceite: dc.date.accessioned2022-02-22T00:09:02Z-
Data de disponibilização: dc.date.available2022-02-22T00:09:02Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2017-01-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196297-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196297-
Descrição: dc.descriptionSilicon carbide ceramics are used for several industry applications, such as structural coating, ballistic armor, thermal coating protection, high performance mirror substrate, catalyst supports, etc. In this work, dense SiC ceramics with different amounts of Y2O3 and Al2O3 were exposed to a plasma technique that has recently been used for material treatment called plasma expander. This process is based on the inverse Zpinch effect. Interaction of the shock waves generated by the expander with ceramic surfaces can change, for example, the wettability and the morphology of sample surface. In this paper SiC and Al2O3 ceramics were formed by using uniaxial and isostatic pressing method and sintered, respectively, at 1950 degrees C and 1600 degrees C. The SiC ceramics were produced with additive YAG in proportions of 5 wt%, 7.6 wt% and 10 wt%. On the other hand, Al2O3 ceramics were produced with 0.15 wt% MgO. All samples were sanded and polished by using the same process. The ceramics received an average of 1440 plasma pulses with discharges made at equal intervals of 20 minutes, using nitrogen as carrier gas. The use of this innovative plasma technique produced significant changes on the SiC ceramics surface. On the other hand, the alumina ceramics, that have dielectric characteristics, showed slight change after exposure to a plasma expander.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionUNESP Univ Estadual Paulista, Fac Engn, Dept Fis & Quim, Guaratingueta, Brazil-
Descrição: dc.descriptionEscola Especialistas Aeronaut, Guaratingueta, Brazil-
Descrição: dc.descriptionUniv Estadual Campinas, Inst Fis Gleb Wataghin, Campinas, SP, Brazil-
Descrição: dc.descriptionInst Aeronaut & Espaco, Dept Ciencia & Tecnol Aeroesp, Sao Jose Dos Campos, Brazil-
Descrição: dc.descriptionUNESP Univ Estadual Paulista, Fac Engn, Dept Fis & Quim, Guaratingueta, Brazil-
Formato: dc.format5-11-
Idioma: dc.languageen-
Publicador: dc.publisherIeee-
Relação: dc.relation2017 16th Latin American Workshop On Plasma Physics (lawpp 2017)-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectAl2O3 ceramics-
Palavras-chave: dc.subjectplasma expander-
Palavras-chave: dc.subjectSiC ceramics and surface treatment-
Título: dc.titleCharacterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge-
Aparece nas coleções:Repositório Institucional - Unesp

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