3Y-TZP/Si2N2O composite obtained by pressureless sintering
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Título da fonte: | Repositório Institucional do IPEN |
Texto Completo: | http://repositorio.ipen.br/handle/123456789/27492 |
Resumo: | Y-TZP presents excellent properties at room temperature but these properties decrease as the temperature increases. This paper studies the behavior 20vol%Si3N4-SiC when added in YTZP matrix and heated under no pressure system. Al2O3 and Y2O3 were used to maintain the stability of the matrix and as sintering aids. The addition of Si3N4 and SiC in a Y-TZP matrix leads to formation of silicon oxynitride and it increases the mechanical properties like toughness and hardness. The mixture was milled and molded by CIP. Samples were heated at 1500??C, 1600??C and 1700??C for 2h without pressure under atmospheric conditions in bed-powders of Si3N4. Samples were characterized by XRD. Density, hardness, toughness, bending strength were measured. The structure of the material was observed in SEM/EPMA to verify the distribution of the materials in the composite. The formation of Si2N2O was observed in the sintered material and it showed an increment of both hardness and toughness as temperature increases. The samples presented considerable resistance of oxidation at 1000??C. |
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2017-05-23T17:56:42Z2017-05-23T17:56:42ZNovember 07-10, 2007http://repositorio.ipen.br/handle/123456789/27492Y-TZP presents excellent properties at room temperature but these properties decrease as the temperature increases. This paper studies the behavior 20vol%Si3N4-SiC when added in YTZP matrix and heated under no pressure system. Al2O3 and Y2O3 were used to maintain the stability of the matrix and as sintering aids. The addition of Si3N4 and SiC in a Y-TZP matrix leads to formation of silicon oxynitride and it increases the mechanical properties like toughness and hardness. The mixture was milled and molded by CIP. Samples were heated at 1500??C, 1600??C and 1700??C for 2h without pressure under atmospheric conditions in bed-powders of Si3N4. Samples were characterized by XRD. Density, hardness, toughness, bending strength were measured. The structure of the material was observed in SEM/EPMA to verify the distribution of the materials in the composite. The formation of Si2N2O was observed in the sintered material and it showed an increment of both hardness and toughness as temperature increases. The samples presented considerable resistance of oxidation at 1000??C.Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2017-05-23T17:56:42Z No. of bitstreams: 1 22863.pdf: 822985 bytes, checksum: 406076a70c195fd2540f9a3fb41d3fcb (MD5)Made available in DSpace on 2017-05-23T17:56:42Z (GMT). No. of bitstreams: 1 22863.pdf: 822985 bytes, checksum: 406076a70c195fd2540f9a3fb41d3fcb (MD5)714-721composite materialsexperimental datafracture propertiessilicon carbidessilicon nitridessinteringtemperature dependencetemperature range 1000-4000 ktetragonal latticesvickers hardnessyttrium oxideszirconium oxides3Y-TZP/Si2N2O composite obtained by pressureless sinteringinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectIB??zios, RJSANTOS, CARLOS A.X.HAYAKAWA, MOTOZOBRESSIANI, JOSE C.INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 6thinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN228632007BRESSIANI, JOSE C.17-05Proceedings311574671459SANTOS, CARLOS A.X.:3115:-1:SHAYAKAWA, MOTOZO:7467:-1:NBRESSIANI, JOSE C.:1459:720:NORIGINAL22863.pdf22863.pdfapplication/pdf822985http://repositorio.ipen.br/bitstream/123456789/27492/1/22863.pdf406076a70c195fd2540f9a3fb41d3fcbMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/27492/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/274922022-08-11 18:13:52.211oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102022-08-11T18:13:52Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false |
dc.title.pt_BR.fl_str_mv |
3Y-TZP/Si2N2O composite obtained by pressureless sintering |
title |
3Y-TZP/Si2N2O composite obtained by pressureless sintering |
spellingShingle |
3Y-TZP/Si2N2O composite obtained by pressureless sintering SANTOS, CARLOS A.X. composite materials experimental data fracture properties silicon carbides silicon nitrides sintering temperature dependence temperature range 1000-4000 k tetragonal lattices vickers hardness yttrium oxides zirconium oxides |
title_short |
3Y-TZP/Si2N2O composite obtained by pressureless sintering |
title_full |
3Y-TZP/Si2N2O composite obtained by pressureless sintering |
title_fullStr |
3Y-TZP/Si2N2O composite obtained by pressureless sintering |
title_full_unstemmed |
3Y-TZP/Si2N2O composite obtained by pressureless sintering |
title_sort |
3Y-TZP/Si2N2O composite obtained by pressureless sintering |
author |
SANTOS, CARLOS A.X. |
author_facet |
SANTOS, CARLOS A.X. HAYAKAWA, MOTOZO BRESSIANI, JOSE C. INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 6th |
author_role |
author |
author2 |
HAYAKAWA, MOTOZO BRESSIANI, JOSE C. INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 6th |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
SANTOS, CARLOS A.X. HAYAKAWA, MOTOZO BRESSIANI, JOSE C. INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 6th |
dc.subject.por.fl_str_mv |
composite materials experimental data fracture properties silicon carbides silicon nitrides sintering temperature dependence temperature range 1000-4000 k tetragonal lattices vickers hardness yttrium oxides zirconium oxides |
topic |
composite materials experimental data fracture properties silicon carbides silicon nitrides sintering temperature dependence temperature range 1000-4000 k tetragonal lattices vickers hardness yttrium oxides zirconium oxides |
description |
Y-TZP presents excellent properties at room temperature but these properties decrease as the temperature increases. This paper studies the behavior 20vol%Si3N4-SiC when added in YTZP matrix and heated under no pressure system. Al2O3 and Y2O3 were used to maintain the stability of the matrix and as sintering aids. The addition of Si3N4 and SiC in a Y-TZP matrix leads to formation of silicon oxynitride and it increases the mechanical properties like toughness and hardness. The mixture was milled and molded by CIP. Samples were heated at 1500??C, 1600??C and 1700??C for 2h without pressure under atmospheric conditions in bed-powders of Si3N4. Samples were characterized by XRD. Density, hardness, toughness, bending strength were measured. The structure of the material was observed in SEM/EPMA to verify the distribution of the materials in the composite. The formation of Si2N2O was observed in the sintered material and it showed an increment of both hardness and toughness as temperature increases. The samples presented considerable resistance of oxidation at 1000??C. |
publishDate |
2017 |
dc.date.evento.pt_BR.fl_str_mv |
November 07-10, 2007 |
dc.date.accessioned.fl_str_mv |
2017-05-23T17:56:42Z |
dc.date.available.fl_str_mv |
2017-05-23T17:56:42Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/conferenceObject |
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conferenceObject |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ipen.br/handle/123456789/27492 |
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http://repositorio.ipen.br/handle/123456789/27492 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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714-721 |
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I |
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