Corrosion in 316L Porous Prostheses Obtained by Gelcasting

Gelcasting (GC) process, usually used for ceramic moulding, is adapted for producing spongy or porous metal osteosynthesis components destined to bone void filling. The main objective of the interconnected porosity is to improve the osteoconductive of metal matrix by ingrowth of bone. Further, poros...

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Detalles Bibliográficos
Autores principales: Gregorutti, Ricardo Walter, Elsner, Cecilia Inés, Garrido, Liliana Beatriz, Ozols, Andrés
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ingeniería
Corrosion
Porous prostheses
Gelcasting
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81504
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81504
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería
Corrosion
Porous prostheses
Gelcasting
spellingShingle Ingeniería
Corrosion
Porous prostheses
Gelcasting
Gregorutti, Ricardo Walter
Elsner, Cecilia Inés
Garrido, Liliana Beatriz
Ozols, Andrés
Corrosion in 316L Porous Prostheses Obtained by Gelcasting
topic_facet Ingeniería
Corrosion
Porous prostheses
Gelcasting
description Gelcasting (GC) process, usually used for ceramic moulding, is adapted for producing spongy or porous metal osteosynthesis components destined to bone void filling. The main objective of the interconnected porosity is to improve the osteoconductive of metal matrix by ingrowth of bone. Further, porosity reduces metal density and Young module, which causes bone resorption, leading to implant failure, phenomenon known as stress shielding. The employed GC is based on the formulation of AISI 316L stainless steel powder suspension in an aqueous solution of organic polymers. This suspension is cast into porous ceramic shells, like those used in lost wax technique, wherein the polymer crosslinking is induced by heating. The shells, containing the resulting hydrogel–metal composite, are subjected to thermal cycle in order to dry, burn the organic phase, sinter the metal particles at 1200 °C, and cool down to room temperature under dry hydrogen permanent flow. The susceptibility to corrosion of 50-60 % porous pieces was analyzed. The results indicated that the lower relation between the open porosity and the total porosity, the lower the corrosion rate.
format Articulo
Articulo
author Gregorutti, Ricardo Walter
Elsner, Cecilia Inés
Garrido, Liliana Beatriz
Ozols, Andrés
author_facet Gregorutti, Ricardo Walter
Elsner, Cecilia Inés
Garrido, Liliana Beatriz
Ozols, Andrés
author_sort Gregorutti, Ricardo Walter
title Corrosion in 316L Porous Prostheses Obtained by Gelcasting
title_short Corrosion in 316L Porous Prostheses Obtained by Gelcasting
title_full Corrosion in 316L Porous Prostheses Obtained by Gelcasting
title_fullStr Corrosion in 316L Porous Prostheses Obtained by Gelcasting
title_full_unstemmed Corrosion in 316L Porous Prostheses Obtained by Gelcasting
title_sort corrosion in 316l porous prostheses obtained by gelcasting
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/81504
work_keys_str_mv AT gregoruttiricardowalter corrosionin316lporousprosthesesobtainedbygelcasting
AT elsnerceciliaines corrosionin316lporousprosthesesobtainedbygelcasting
AT garridolilianabeatriz corrosionin316lporousprosthesesobtainedbygelcasting
AT ozolsandres corrosionin316lporousprosthesesobtainedbygelcasting
bdutipo_str Repositorios
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