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Mostrando ítems 61-70 de 76
Artículo
Improvement of the balance between a reduced stress shielding and bone ingrowth by bioactive coatings onto porous titanium substrates
(Elsevier, 2018-03)
Commercial pure titanium is known as good substitute for cortical bone tissue. Nevertheless, stress-shielding and the lack of osseointegration are still some limitations to solve. In this study, porous titanium substrates ...
Artículo
Deposición sol-gel de hidroxiapatita bioactiva sobre titanio poroso
(ECIMED, 2017)
Introducción: el titanio y algunas de sus aleaciones son considerados la mejor opción para fabricar implantes permanentes, debido a sus excelentes propiedades mecánicas y resistencia a la corrosión en el ambiente ...
Artículo
Approach to the Fatigue and Cellular Behavior of Superficially Modified Porous Titanium Dental Implants
(MDPI, 2022-05)
In this work, the fatigue and cellular performance of novel superficially treated porous titanium dental implants made up using conventional powder metallurgy and space-holder techniques (30 vol.% and 50 vol.%, both with ...
Artículo
Surface Modification of Porous Titanium Discs Using Femtosecond Laser Structuring
(MDPI, 2020-06)
The failure of titanium implants is associated with two main problems that include the bone resorption and fracture of the surrounding bone tissue (stiffness incompatibility) and implant loosening (poor osseointegration). ...
Artículo
Biocompatibility and Cellular Behavior of TiNbTa Alloy with Adapted Rigidity for the Replacement of Bone Tissue
(MDPI, 2021-01)
In this work, the mechanical and bio-functional behavior of a TiNbTa alloy is evaluated as a potential prosthetic biomaterial used for cortical bone replacement. The results are compared with the reference Ti c.p. used as ...
Artículo
Processing and characterisation of cermet/hardmetal laminates with strong interfaces
(Elsevier, 2014)
Cemented carbides and cermets are potential materials for high speed machining tools. However, cemented carbides are not chemically stable at high temperature and cermets present poor fracture toughness. Novel cermet/hardmetal ...
Artículo
Designing, processing and characterisation of titanium cylinders with graded porosity: An alternative to stress-shielding solutions
(Elsevier, 2014)
Bone resorption events and consequent failure of titanium implants are frequently related to stress-shielding problems, due to stiffness mismatch with respect to bone. This is a mechanical incompatibility problem, which ...
Artículo
Development and implementation of a sequential compaction device to obtain radial graded porosity cylinders
(Elsevier, 2020)
In this work, a sequential compaction device has been successfully developed and implemented to produce commercially pure titanium cylinders, in which the porosity increases from the core to the surface or vice versa. The ...
Artículo
Thermal and tribo-mechanical properties of high-performance poly (etheretherketone)/reduced graphene oxide nanocomposite coatings prepared by electrophoretic deposition
(Springer, 2023-06)
The thermal stability and degradation, near-to-surface mechanical properties, and scratch resistance and damage mechanism of poly(etheretherketone) (PEEK)/reduced graphene oxide (RGO) nanocomposite coatings are analyzed ...
Artículo
Development of porous silver nanoparticle/polycaprolactone/polyvinyl alcohol coatings for prophylaxis in titanium interconnected samples for dental implants
(Elsevier, 2022-05)
Stress shielding phenomenon, poor osseointegration, or bacterial infections of titanium dental implants are widely recognized as key problems that deeply affect their survival rate. In this work, a joint solution to solve ...