Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1109/LAWPP.2017.8692198 http://hdl.handle.net/11449/187632 |
Resumo: | Silicon 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° C and 1600° 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. |
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Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma DischargeAl2O3 ceramicsplasma expanderSiC ceramics and surface treatmentSilicon 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° C and 1600° 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.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Física e Química UNESP-Universidade Estadual PaulistaEscola de Especialistas de AeronáuticaInstituto de Física 'Gleb Wataghin' Universidade Estadual de CampinasDepartamento de Ciência e Tecnologia Aeroespacial Instituto de Aeronáutica e EspaçoDepartamento de Física e Química UNESP-Universidade Estadual PaulistaUniversidade Estadual Paulista (Unesp)Escola de Especialistas de AeronáuticaUniversidade Estadual de Campinas (UNICAMP)Instituto de Aeronáutica e EspaçoAlgatti, Mauricio A. [UNESP]Santos, Carlos N. [UNESP]Mota, Rogério P. [UNESP]De Campos, Elson [UNESP]Lucena, Emerson F.Machida, MunemasaMelo, Francisco C. L.2019-10-06T15:42:24Z2019-10-06T15:42:24Z2017-07-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject5-11http://dx.doi.org/10.1109/LAWPP.2017.869219816th Latin American Workshop on Plasma Physics, LAWPP 2017 - Conference Proceedings, p. 5-11.http://hdl.handle.net/11449/18763210.1109/LAWPP.2017.86921982-s2.0-85065312142Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPeng16th Latin American Workshop on Plasma Physics, LAWPP 2017 - Conference Proceedingsinfo:eu-repo/semantics/openAccess2021-10-23T17:23:50Zoai:repositorio.unesp.br:11449/187632Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:01:30.644323Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge |
title |
Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge |
spellingShingle |
Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge Algatti, Mauricio A. [UNESP] Al2O3 ceramics plasma expander SiC ceramics and surface treatment |
title_short |
Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge |
title_full |
Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge |
title_fullStr |
Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge |
title_full_unstemmed |
Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge |
title_sort |
Characterization of SiC and Al2O3 Ceramics Exposed to Nitrogen Ions from Inverse-Z Pinch Plasma Discharge |
author |
Algatti, Mauricio A. [UNESP] |
author_facet |
Algatti, Mauricio A. [UNESP] Santos, Carlos N. [UNESP] Mota, Rogério P. [UNESP] De Campos, Elson [UNESP] Lucena, Emerson F. Machida, Munemasa Melo, Francisco C. L. |
author_role |
author |
author2 |
Santos, Carlos N. [UNESP] Mota, Rogério P. [UNESP] De Campos, Elson [UNESP] Lucena, Emerson F. Machida, Munemasa Melo, Francisco C. L. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Escola de Especialistas de Aeronáutica Universidade Estadual de Campinas (UNICAMP) Instituto de Aeronáutica e Espaço |
dc.contributor.author.fl_str_mv |
Algatti, Mauricio A. [UNESP] Santos, Carlos N. [UNESP] Mota, Rogério P. [UNESP] De Campos, Elson [UNESP] Lucena, Emerson F. Machida, Munemasa Melo, Francisco C. L. |
dc.subject.por.fl_str_mv |
Al2O3 ceramics plasma expander SiC ceramics and surface treatment |
topic |
Al2O3 ceramics plasma expander SiC ceramics and surface treatment |
description |
Silicon 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° C and 1600° 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. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07-02 2019-10-06T15:42:24Z 2019-10-06T15:42:24Z |
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/10.1109/LAWPP.2017.8692198 16th Latin American Workshop on Plasma Physics, LAWPP 2017 - Conference Proceedings, p. 5-11. http://hdl.handle.net/11449/187632 10.1109/LAWPP.2017.8692198 2-s2.0-85065312142 |
url |
http://dx.doi.org/10.1109/LAWPP.2017.8692198 http://hdl.handle.net/11449/187632 |
identifier_str_mv |
16th Latin American Workshop on Plasma Physics, LAWPP 2017 - Conference Proceedings, p. 5-11. 10.1109/LAWPP.2017.8692198 2-s2.0-85065312142 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
16th Latin American Workshop on Plasma Physics, LAWPP 2017 - Conference Proceedings |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
5-11 |
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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1808129483608162304 |