Hardness and elasticity in cubic ruthenium dioxide

Detalhes bibliográficos
Autor(a) principal: Leger, Jean Michel
Data de Publicação: 2001
Outros Autores: Djemia, P., Ganot, F., Haines, Julian, Pereira, Altair Soria, Jornada, Joao Alziro Herz da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/141204
Resumo: The Knoop hardness of the highly incompressible cubic phase of ruthenium dioxide was found to be 19–20 GPa from indentation tests. This value scales well with the shear modulus approximated by the elastic constant C44 of 144 GPa obtained from Brillouin scattering measurements. This work provides evidence that the shear modulus is a better indicator of hardness than the bulk modulus for ionic and covalent materials.
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spelling Leger, Jean MichelDjemia, P.Ganot, F.Haines, JulianPereira, Altair SoriaJornada, Joao Alziro Herz da2016-05-17T02:07:21Z20010003-6951http://hdl.handle.net/10183/141204000306111The Knoop hardness of the highly incompressible cubic phase of ruthenium dioxide was found to be 19–20 GPa from indentation tests. This value scales well with the shear modulus approximated by the elastic constant C44 of 144 GPa obtained from Brillouin scattering measurements. This work provides evidence that the shear modulus is a better indicator of hardness than the bulk modulus for ionic and covalent materials.application/pdfengApplied physics letters. Melville. Vol. 79, no. 14 (Oct. 2001), p. 2169-2171Espectros de BrillouinConstantes elásticasMódulos elásticosMicrodurezaHardness and elasticity in cubic ruthenium dioxideEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000306111.pdf000306111.pdfTexto completo (inglês)application/pdf392712http://www.lume.ufrgs.br/bitstream/10183/141204/1/000306111.pdf9f9ab9b37a63848e284801e51c76baf4MD51TEXT000306111.pdf.txt000306111.pdf.txtExtracted Texttext/plain11875http://www.lume.ufrgs.br/bitstream/10183/141204/2/000306111.pdf.txt4e32cfccee58e941c9401ac9b387cb7bMD52THUMBNAIL000306111.pdf.jpg000306111.pdf.jpgGenerated Thumbnailimage/jpeg2048http://www.lume.ufrgs.br/bitstream/10183/141204/3/000306111.pdf.jpg9f077b29861da6a1b1fdb82673b54bf9MD5310183/1412042024-01-17 04:29:58.773817oai:www.lume.ufrgs.br:10183/141204Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-01-17T06:29:58Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Hardness and elasticity in cubic ruthenium dioxide
title Hardness and elasticity in cubic ruthenium dioxide
spellingShingle Hardness and elasticity in cubic ruthenium dioxide
Leger, Jean Michel
Espectros de Brillouin
Constantes elásticas
Módulos elásticos
Microdureza
title_short Hardness and elasticity in cubic ruthenium dioxide
title_full Hardness and elasticity in cubic ruthenium dioxide
title_fullStr Hardness and elasticity in cubic ruthenium dioxide
title_full_unstemmed Hardness and elasticity in cubic ruthenium dioxide
title_sort Hardness and elasticity in cubic ruthenium dioxide
author Leger, Jean Michel
author_facet Leger, Jean Michel
Djemia, P.
Ganot, F.
Haines, Julian
Pereira, Altair Soria
Jornada, Joao Alziro Herz da
author_role author
author2 Djemia, P.
Ganot, F.
Haines, Julian
Pereira, Altair Soria
Jornada, Joao Alziro Herz da
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Leger, Jean Michel
Djemia, P.
Ganot, F.
Haines, Julian
Pereira, Altair Soria
Jornada, Joao Alziro Herz da
dc.subject.por.fl_str_mv Espectros de Brillouin
Constantes elásticas
Módulos elásticos
Microdureza
topic Espectros de Brillouin
Constantes elásticas
Módulos elásticos
Microdureza
description The Knoop hardness of the highly incompressible cubic phase of ruthenium dioxide was found to be 19–20 GPa from indentation tests. This value scales well with the shear modulus approximated by the elastic constant C44 of 144 GPa obtained from Brillouin scattering measurements. This work provides evidence that the shear modulus is a better indicator of hardness than the bulk modulus for ionic and covalent materials.
publishDate 2001
dc.date.issued.fl_str_mv 2001
dc.date.accessioned.fl_str_mv 2016-05-17T02:07:21Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.issn.pt_BR.fl_str_mv 0003-6951
dc.identifier.nrb.pt_BR.fl_str_mv 000306111
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Applied physics letters. Melville. Vol. 79, no. 14 (Oct. 2001), p. 2169-2171
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