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| Formato: | Artículo científico |
| Lenguaje: | en |
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Academia Brasileira de Ciências
2017
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=32754216050 |
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- A Novel Porous Diamond-Titanium Biomaterial: Structure, Microstructure, Physico-Mechanical Properties and Biocompatibility ZULMIRA A.S. GUIMARÃES RENATO A. DAMATTA RENAN S. GUIMARÃES MARCELLO FILGUEIRA Multidisciplinaria (Ciencias Naturales y Exactas) Diamond Titanium Sintering Biomaterials Characterization With the aim of introducing permanent prostheses with main properties equivalent to cortical human bone, Ti-diamond composites were processed through powder metallurgy. Grade 1 titanium and mixtures of Ti powder with 2%, 5% and 10 wt% diamond were compacted at 100MPa, and then sintered at 1250°C/2hr/10 - 6 mbar. Sintered samples were studied in the point of view of their microstructures, structures, yield strength and elastic modulus. The results showed that the best addition of diamonds was 2 wt%, which led to a uniform porosity, yield strength of 370MPa and elastic modulus of 13.9 GPa. Samples of Ti and Ti-2% diamond were subjected to in vitro cytotoxicity test, using cultures of VERO cells, and it resulted in a biocompatible and nontoxic composite material. 2017 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32754216050 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.89