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Título : Design, fabrication and characterization of titanium with graded porosity by using space-holder technique
Autor : Torres Hernández, Yadir
Pavón Palacio, Juan José
Trueba, Paloma
Cobos, Joaquin
Rodríguez Ortíz, Jose Antonio
Palabras clave : Biomateriales
Conferencia Internacional sobre Metales Porosos Metálicos y Metálicos
Conferencias internacionales
Implantes
Metales porosos
Titanio
Biomaterials
Functionally Graded Materials (FGM)
Implants
Space-Holder
Titanium
Fecha de publicación : 2014
Editorial : Elsevier
Citación : Torres Hernández, Y., Pavón Palacio, J. J., Trueba, P., Cobos, J., & Rodríguez Ortíz, J. A. (2014). Design, fabrication and characterization of titanium with graded porosity by using space-holder technique. Procedia Materials Science, 4, 115-119. DOI:10.1016/j.mspro.2014.07.610
Abstract : Bone resorption and further failure of titanium implants are often associated to stress-shielding phenomenon. This problem of mechanical incompatibility is even worst due to anisotropy of bone tissue to be replaced. In this work, different samples with gradient longitudinal porosity by using space-holder technique were fabricated and characterized. Main results of this work indicated that: 1) Experimental procedure for space-holder elimination was effective, feasible and reproducible, with better results for a compaction pressure of 800 MPa, and for highest salt contents; 2) 3-D images by micro-CT and images analysis of optical micrographs showed that initial designs were reasonably repeatable; this was observed in terms of both porosity and interfaces quality; and 3) Designs of 30/40/50 and 30/50/30, allowed to solve stress shielding without any important effect on mechanical strength, from the cortical bone point of view.
Grupo de INV. : Grupo de Biomateriales Avanzados y Medicina Regenerativa (BAMR)
URI : http://hdl.handle.net/10495/7990
ISSN : 2211-8128
10.1016/j.mspro.2014.07.610
Aparece en las colecciones: CIA (Centro de Investigaciones Ambientales y de Ingeniería)

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