Influence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses

Alumina has been widely used in joint prostheses due to its excellent biocompatibility, wear and corrosion resistance, low friction, high mechanical strength and low cost. However, the further improvement in fracture toughness and wear resistance is required for severe activities. In this work Y-TZP...

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Autores principales:	Carlos Morillo, Yoshinori Sawae, Teruo Murakami
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2009
Materias:	alumina nanocomposites hip joint prosthesis biotribology surface analysis Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/b932bf0c30c4445c83e1e0871d2b85a8
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spelling	oai:doaj.org-article:b932bf0c30c4445c83e1e0871d2b85a82021-11-05T09:27:47ZInfluence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses1881-219810.2474/trol.4.127https://doaj.org/article/b932bf0c30c4445c83e1e0871d2b85a82009-11-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/4/5/4_5_127/_pdf/-char/enhttps://doaj.org/toc/1881-2198Alumina has been widely used in joint prostheses due to its excellent biocompatibility, wear and corrosion resistance, low friction, high mechanical strength and low cost. However, the further improvement in fracture toughness and wear resistance is required for severe activities. In this work Y-TZP (100 nm), TiO2 (50 nm), were added to Al2O3 powder (300 nm) to prepare new candidate composite materials for prostheses. These starting powders were mixed and hot pressed. Mechanical properties as Vickers hardness and fracture toughness were estimated using the indentation method. Wear tests were carried out in a ball-on-plate tribometer, with a frequency of 1 Hz, a load of 49 N, for 4h. Alumina and silicon nitride balls were used as counterfaces. Distilled water and Fetal Bovine Serum Solution were used as environment. Lowest specific wear rate was about 10-8 mm3/Nm and lowest coefficient of friction was around 0.2 for the case of silicon nitride ball. Furthermore the chemical species formed on the surface were studied.Carlos MorilloYoshinori SawaeTeruo MurakamiJapanese Society of Tribologistsarticlealuminananocompositeship joint prosthesisbiotribologysurface analysisPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 4, Iss 5, Pp 127-130 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	alumina nanocomposites hip joint prosthesis biotribology surface analysis Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	alumina nanocomposites hip joint prosthesis biotribology surface analysis Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Carlos Morillo Yoshinori Sawae Teruo Murakami Influence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses
description	Alumina has been widely used in joint prostheses due to its excellent biocompatibility, wear and corrosion resistance, low friction, high mechanical strength and low cost. However, the further improvement in fracture toughness and wear resistance is required for severe activities. In this work Y-TZP (100 nm), TiO2 (50 nm), were added to Al2O3 powder (300 nm) to prepare new candidate composite materials for prostheses. These starting powders were mixed and hot pressed. Mechanical properties as Vickers hardness and fracture toughness were estimated using the indentation method. Wear tests were carried out in a ball-on-plate tribometer, with a frequency of 1 Hz, a load of 49 N, for 4h. Alumina and silicon nitride balls were used as counterfaces. Distilled water and Fetal Bovine Serum Solution were used as environment. Lowest specific wear rate was about 10-8 mm3/Nm and lowest coefficient of friction was around 0.2 for the case of silicon nitride ball. Furthermore the chemical species formed on the surface were studied.
format	article
author	Carlos Morillo Yoshinori Sawae Teruo Murakami
author_facet	Carlos Morillo Yoshinori Sawae Teruo Murakami
author_sort	Carlos Morillo
title	Influence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses
title_short	Influence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses
title_full	Influence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses
title_fullStr	Influence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses
title_full_unstemmed	Influence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses
title_sort	influence of different counterfaces on tribological behaviors of al2o3 nanocomposites for joint prostheses
publisher	Japanese Society of Tribologists
publishDate	2009
url	https://doaj.org/article/b932bf0c30c4445c83e1e0871d2b85a8
work_keys_str_mv	AT carlosmorillo influenceofdifferentcounterfacesontribologicalbehaviorsofal2o3nanocompositesforjointprostheses AT yoshinorisawae influenceofdifferentcounterfacesontribologicalbehaviorsofal2o3nanocompositesforjointprostheses AT teruomurakami influenceofdifferentcounterfacesontribologicalbehaviorsofal2o3nanocompositesforjointprostheses
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Influence of Different Counterfaces on Tribological Behaviors of Al2O3 Nanocomposites for Joint Prostheses

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