Surface Modification of Powder Metallurgy Titanium by Colloidal Techniques and Diffusion Processes for Biomedical Applications
| Autor: | Carlos Mendoza, Yolanda Castro, Antonia Jiménez-Morales, Begoña Ferrari, Elena Gordo, S.A. Tsipas, Julia Ureña |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Biocompatibility Metallurgy chemistry.chemical_element 02 engineering and technology equipment and supplies 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Corrosion Electrophoretic deposition Colloid chemistry Powder metallurgy Surface modification General Materials Science 0210 nano-technology Tin Titanium |
| Zdroj: | Advanced Engineering Materials. 19:1600207 |
| ISSN: | 1438-1656 |
| DOI: | 10.1002/adem.201600207 |
| Popis: | This contribution focuses on modifying the composition and surface characteristics of powder metallurgy titanium substrates to improve their wear resistance and to reduce the surface Young´s modulus, while maintaining the corrosion resistance and biocompatibility. The modification consists of Mo and TiN coatings produced by colloidal techniques which are deposited by electrophoretic deposition (EPD) or spraying onto green or sintered titanium substrates. The final surface structures are formed during a heat treatment, during which diffusion and consolidation of the layers take place. The surfaces are characterised by XRD, SEM, and micro-indentation; showing diffusion areas of between 40 and 85 microns with clear microstructural changes as well as higher hardness values. |
| Databáze: | OpenAIRE |
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