| Autor: |
Bărbînţă, Andreea Carmen, Chelariu, Romeo, Benchea, Marcelin, Crimu, Carmen Iulia, Strugaru, Sorin Iacob, Munteanu, Corneliu |
| Zdroj: |
Advanced Materials Research; November 2013, Vol. 837 Issue: 1 p259-264, 6p |
| Abstrakt: |
Ti-Nb-Zr-Ta alloys represent a new generation of biomaterials with possible applications in the orthopedic field, being developed in order to eliminate the negative aspects of the current orthopedic biomaterials, which consist mainly in a low biocompatibility with human tissues and high values of modulus of elasticity compared to the human bone. This paper presents a comparative study of new titanium alloys, corresponding to the Ti-Nb-Zr-Ta system: Ti-21Nb-6Zr-15Ta and Ti-25Nb-10Zr-8Ta, which were analyzed by scanning electron microscopy, X-ray diffraction and microindentation. The both alloys are classified as near-β alloys. The addition of alloying elements such as Ta, Nb and Zr represents a good solution for lowering modulus of elasticity, which is an important factor for reducing bone resorption and therefore for preventing implant failure. |
| Databáze: |
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