Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica

Autores
Grinschpun, Luciano; Oldani, Carlos Rodolfo; Schneiter, Ernesto Matías; Valdemarin, Matías; Pereyra, Juan
Año de publicación
2018
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Within the study of biomaterials for implantological use titanium is among the most widely employed metals due to its excellent corrosion and mechanical resistance. In spite of the advances made, there are some issues remaining with the value of the elastic moduli of the titanium (110GPa) in comparison with the elastic moduli of the cortical bone (20-30 GPa) and the trabecular bone (1-5GPa). This difference is one of the main reasons a bone prosthesis fails once implanted, producing what is known as Stress shielding. One of the techniques employed to diminish the elastic moduli of titanium consists in incorporating pores to the material. This is done through powder metallurgy techniques, allowing the fabrications of porous composites, sintering a mix of powders of metallic hydrides and spacers that are eliminated during the heat treatment. Taking into account the structural characteristics of the bone, it makes sense to think on the possibility of fabricating a prosthesis with pore gradients. Another problem encountered when employing titanium, is its inability to promote the osteointegration. There are different techniques to tackle this problem, and one of them is to incorporate hydroxyapatite which has the problem that it decomposes in the presence of titanium when sintered at high temperatures. The current study shows the results obtained during the fabrication of samples of titanium with pore gradients. We studied different fabrication techniques, analyzing each stage during the powder metallurgy. process. The obtained material was characterized mechanically through compression tests, determining the elastic moduli of the composite, which was found to be between 16.4 and 20 GPa. Also, different physical characterization methods where employed to analyse the pore content which was found to be 18%. The obtained data was employed for the estimation of elastic moduli of the compound, and compared to the empirical results obtained with the mechanical tests.
Fil: Grinschpun, Luciano. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina
Fil: Oldani, Carlos Rodolfo. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina
Fil: Schneiter, Ernesto Matías. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Valdemarin, Matías. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina
Fil: Pereyra, Juan. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina
Materia
BIOMATERIAL
POROUS
RADIAL
TITANIUM
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/87191
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgicaGrinschpun, LucianoOldani, Carlos RodolfoSchneiter, Ernesto MatíasValdemarin, MatíasPereyra, JuanBIOMATERIALPOROUSRADIALTITANIUMhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Within the study of biomaterials for implantological use titanium is among the most widely employed metals due to its excellent corrosion and mechanical resistance. In spite of the advances made, there are some issues remaining with the value of the elastic moduli of the titanium (110GPa) in comparison with the elastic moduli of the cortical bone (20-30 GPa) and the trabecular bone (1-5GPa). This difference is one of the main reasons a bone prosthesis fails once implanted, producing what is known as Stress shielding. One of the techniques employed to diminish the elastic moduli of titanium consists in incorporating pores to the material. This is done through powder metallurgy techniques, allowing the fabrications of porous composites, sintering a mix of powders of metallic hydrides and spacers that are eliminated during the heat treatment. Taking into account the structural characteristics of the bone, it makes sense to think on the possibility of fabricating a prosthesis with pore gradients. Another problem encountered when employing titanium, is its inability to promote the osteointegration. There are different techniques to tackle this problem, and one of them is to incorporate hydroxyapatite which has the problem that it decomposes in the presence of titanium when sintered at high temperatures. The current study shows the results obtained during the fabrication of samples of titanium with pore gradients. We studied different fabrication techniques, analyzing each stage during the powder metallurgy. process. The obtained material was characterized mechanically through compression tests, determining the elastic moduli of the composite, which was found to be between 16.4 and 20 GPa. Also, different physical characterization methods where employed to analyse the pore content which was found to be 18%. The obtained data was employed for the estimation of elastic moduli of the compound, and compared to the empirical results obtained with the mechanical tests.Fil: Grinschpun, Luciano. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; ArgentinaFil: Oldani, Carlos Rodolfo. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; ArgentinaFil: Schneiter, Ernesto Matías. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Valdemarin, Matías. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; ArgentinaFil: Pereyra, Juan. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; ArgentinaUniversidade Federal do Rio de Janeiro2018-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87191Grinschpun, Luciano; Oldani, Carlos Rodolfo; Schneiter, Ernesto Matías; Valdemarin, Matías; Pereyra, Juan; Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica; Universidade Federal do Rio de Janeiro; Matéria; 23; 2; 7-20181517-7076CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1517-70762018000200495&lng=en&nrm=iso&tlng=eninfo:eu-repo/semantics/altIdentifier/doi/10.1590/s1517-707620180002.0421info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:23:45Zoai:ri.conicet.gov.ar:11336/87191instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:23:46.269CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica
title Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica
spellingShingle Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica
Grinschpun, Luciano
BIOMATERIAL
POROUS
RADIAL
TITANIUM
title_short Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica
title_full Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica
title_fullStr Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica
title_full_unstemmed Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica
title_sort Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica
dc.creator.none.fl_str_mv Grinschpun, Luciano
Oldani, Carlos Rodolfo
Schneiter, Ernesto Matías
Valdemarin, Matías
Pereyra, Juan
author Grinschpun, Luciano
author_facet Grinschpun, Luciano
Oldani, Carlos Rodolfo
Schneiter, Ernesto Matías
Valdemarin, Matías
Pereyra, Juan
author_role author
author2 Oldani, Carlos Rodolfo
Schneiter, Ernesto Matías
Valdemarin, Matías
Pereyra, Juan
author2_role author
author
author
author
dc.subject.none.fl_str_mv BIOMATERIAL
POROUS
RADIAL
TITANIUM
topic BIOMATERIAL
POROUS
RADIAL
TITANIUM
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Within the study of biomaterials for implantological use titanium is among the most widely employed metals due to its excellent corrosion and mechanical resistance. In spite of the advances made, there are some issues remaining with the value of the elastic moduli of the titanium (110GPa) in comparison with the elastic moduli of the cortical bone (20-30 GPa) and the trabecular bone (1-5GPa). This difference is one of the main reasons a bone prosthesis fails once implanted, producing what is known as Stress shielding. One of the techniques employed to diminish the elastic moduli of titanium consists in incorporating pores to the material. This is done through powder metallurgy techniques, allowing the fabrications of porous composites, sintering a mix of powders of metallic hydrides and spacers that are eliminated during the heat treatment. Taking into account the structural characteristics of the bone, it makes sense to think on the possibility of fabricating a prosthesis with pore gradients. Another problem encountered when employing titanium, is its inability to promote the osteointegration. There are different techniques to tackle this problem, and one of them is to incorporate hydroxyapatite which has the problem that it decomposes in the presence of titanium when sintered at high temperatures. The current study shows the results obtained during the fabrication of samples of titanium with pore gradients. We studied different fabrication techniques, analyzing each stage during the powder metallurgy. process. The obtained material was characterized mechanically through compression tests, determining the elastic moduli of the composite, which was found to be between 16.4 and 20 GPa. Also, different physical characterization methods where employed to analyse the pore content which was found to be 18%. The obtained data was employed for the estimation of elastic moduli of the compound, and compared to the empirical results obtained with the mechanical tests.
Fil: Grinschpun, Luciano. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina
Fil: Oldani, Carlos Rodolfo. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina
Fil: Schneiter, Ernesto Matías. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Valdemarin, Matías. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina
Fil: Pereyra, Juan. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Materiales y Tecnología; Argentina
description Within the study of biomaterials for implantological use titanium is among the most widely employed metals due to its excellent corrosion and mechanical resistance. In spite of the advances made, there are some issues remaining with the value of the elastic moduli of the titanium (110GPa) in comparison with the elastic moduli of the cortical bone (20-30 GPa) and the trabecular bone (1-5GPa). This difference is one of the main reasons a bone prosthesis fails once implanted, producing what is known as Stress shielding. One of the techniques employed to diminish the elastic moduli of titanium consists in incorporating pores to the material. This is done through powder metallurgy techniques, allowing the fabrications of porous composites, sintering a mix of powders of metallic hydrides and spacers that are eliminated during the heat treatment. Taking into account the structural characteristics of the bone, it makes sense to think on the possibility of fabricating a prosthesis with pore gradients. Another problem encountered when employing titanium, is its inability to promote the osteointegration. There are different techniques to tackle this problem, and one of them is to incorporate hydroxyapatite which has the problem that it decomposes in the presence of titanium when sintered at high temperatures. The current study shows the results obtained during the fabrication of samples of titanium with pore gradients. We studied different fabrication techniques, analyzing each stage during the powder metallurgy. process. The obtained material was characterized mechanically through compression tests, determining the elastic moduli of the composite, which was found to be between 16.4 and 20 GPa. Also, different physical characterization methods where employed to analyse the pore content which was found to be 18%. The obtained data was employed for the estimation of elastic moduli of the compound, and compared to the empirical results obtained with the mechanical tests.
publishDate 2018
dc.date.none.fl_str_mv 2018-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/87191
Grinschpun, Luciano; Oldani, Carlos Rodolfo; Schneiter, Ernesto Matías; Valdemarin, Matías; Pereyra, Juan; Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica; Universidade Federal do Rio de Janeiro; Matéria; 23; 2; 7-2018
1517-7076
CONICET Digital
CONICET
url http://hdl.handle.net/11336/87191
identifier_str_mv Grinschpun, Luciano; Oldani, Carlos Rodolfo; Schneiter, Ernesto Matías; Valdemarin, Matías; Pereyra, Juan; Obtención de compuesto de titanio con gradiente de porosidad mediante técnica pulvimetalúrgica; Universidade Federal do Rio de Janeiro; Matéria; 23; 2; 7-2018
1517-7076
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1517-70762018000200495&lng=en&nrm=iso&tlng=en
info:eu-repo/semantics/altIdentifier/doi/10.1590/s1517-707620180002.0421
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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