Biomedical Alloys
Mostrando 13-24 de 27 artigos, teses e dissertações.
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13. Electrochemical Stability and Bioactivity Evaluation of Ti6Al4V Surface Coated with Thin Oxide by EIS for Biomedical Applications
To improve the implants biocompatibility many surface modifications were proposed. Investigations about the surface modification on Ti alloys by anodic oxidation are reported. This research presents a study on the stability of thin titanium dioxide grown by potentiodynamic method on Ti6Al4V surfaces up to 5.0 V. Its bioactive surface in phosphate buffer solu
Mat. Res.. Publicado em: 2015-06
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14. Growth and electrochemical stability of self-organized TiO2nanotubes on Ti-2 grade and orthopedic Ti6Al4V alloy for biomedical application
Titanium and its alloys are biomaterials used in endosseous implants, due to desirable mechanical properties, high corrosion resistance and biocompatibility. Using electrochemical anodization technique these materials can be recovered with self-organized TiO2 nanotubes layer resulting in increased specific surface area and probable bioactivity improvement.
Matéria (Rio J.). Publicado em: 2014-03
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15. Interstitial oxygen's influence on the corrosion behavior of Ti-9Mo alloys
Titanium and its alloys have been used in biomedical applications because of their satisfactory mechanical properties, biocompatibility and corrosion resistance. Their high corrosion resistance has been attributed to the formation of a thermodynamically stable titanium oxide layer on the surface of these materials. In the present work, the corrosion behavior
Mat. Res.. Publicado em: 20/08/2013
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16. Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion
Ti-6Al-7Nb alloys are being evaluated for biomedical applications, in substitution of the more conventional Ti-6Al-7V. Both types of alloys present a microstructure containing the α and the β phases, which result in good compromise for mechanical applications. In the present work Ti-6Al-7Nb alloys were processed by High Pressure Torsion (HPT), varying the
Mat. Res.. Publicado em: 16/08/2012
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17. Influence of the substitutional solute on the mechanical properties of Ti-Nb binary alloys for biomedical use
Titanium alloys are widely used in the manufacture of biomedical implants because they possess an excellent combination of physical properties and outstanding biocompatibility. Today, the most widely used alloy is Ti-6Al-4V, but some studies have reported adverse effects with the long-term presence of Al and V in the body, without mentioning that the elastic
Materials Research. Publicado em: 05/04/2012
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18. Tendência de formação de fase amorfa em ligas a base de magnésio para biomaterial temporário / Evaluation of the glass forming ability in mg-zn-ca alloys for biomedical application
Mg alloys have attracted attention as potential implant material because of their good mechanical properties, biocompatibility and biodegradation properties. However corrosion of these alloys causes intense release of hydrogen gas which is not desirable for biomedical applications. Zberg et. al. reported a significant reduction in hydrogen evolution in Mg-Zn
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/10/2011
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19. Caracterização do módulo elástico por espectroscopia mecânica da liga Ti-13Nb-13Zr
In the present time the titanium and their alloys are begin widely studied in the field of biomaterials because of its suitable mechanical properties such as low elastic modulus, excellent corrosion resistance and high biocompatibility. Recent studies are being focused on alloys free of toxic elements as Al and V, which are contained in the alloy Ti-6Al-4V t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/09/2011
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20. A comparative study of the corrosion resistance of incoloy MA 956 and PM 2000 superalloys
Austenitic stainless steels, titanium and cobalt alloys are widely used as biomaterials. However, new medical devices require innovative materials with specific properties, depending on their application. The magnetic properties are among the properties of interest for some biomedical applications. However, due to the interaction of magnetic materials with M
Materials Research. Publicado em: 2010-12
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21. Avaliação da biocompatibilidade "in vitro" e "in vivo" de ligas metálicas de titânio para aplicação odontológica / "In vitro" and "in vivo" biocompatibility evaluation of Ti alloys for odontological applications
Biomaterial applications have increased in the last decade, since bone diseases, injury from accidents have reached an increasing number of people. In dentistic, biomaterials have also large use as to estetic application as well to recuperate the function. New biomaterials have been studied in order to get better mechanical properties allowing better perform
Publicado em: 2008
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22. Covering characterization of TiO2 deposited by plasma thermal aspersion on the alloy Ti-13Nb-13Zr / Caracterização de revestimentos de TiO2 depositados por aspersão termica a plasma sobre a liga Ti-13Nb-13Zr
A liga Ti-13Nb-13Zr tem sido proposta em estudos de pesquisa como uma nova alternativa dentre as ligas biomédicas por apresentar em sua formulação alguns dos elementos metálicos de maior compatibilidade como: titânio, nióbio e zircônio; considerados como metais válvulas, onde apresentam excelente resistência à corrosão, excelente propriedades mec�
Publicado em: 2008
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23. The effect of hydrogen peroxide on the electrochemical behaviour of Ti-13Nb-13Zr alloy in Hanks' solution
Titanium alloys are largely used for biomedical applications mainly due to their high corrosion resistance resulting from the protective oxide film formed on their surface. The literature, however, has pointed out discrepancies between in vitro tests and in vivo tests. These discrepancies have been ascribed to hydrogen peroxide (H2O2) generated by inflammato
Materials Research. Publicado em: 2006-12
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24. Study of the non-linear stress-strain behavior in Ti-Nb-Zr alloys
The aim of this work is to study the elastic behavior of some Ti-Nb-Zr alloys (Ti-8Nb-13Zr, Ti-13Nb-13Zr, Ti-18Nb-13Zr and Ti-41.1Nb-7.1Zr) developed to biomedical applications. These alloys were produced by arc melting under argon atmosphere. Uniaxial tensile tests, carried out in a MST servo-hydraulic machine, were employed in their mechanical characteriza
Materials Research. Publicado em: 2005-12