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https://hdl.handle.net/1822/16594
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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Oliveira, Cristina | - |
dc.contributor.author | Escobar Galindo, R. | - |
dc.contributor.author | Palacio, C. | - |
dc.contributor.author | Vázquez, L. | - |
dc.contributor.author | Espinosa, A. | - |
dc.contributor.author | Almeida, B. G. | - |
dc.contributor.author | Henriques, Mariana | - |
dc.contributor.author | Calderon, V. S. | - |
dc.contributor.author | Carvalho, S. | - |
dc.date.accessioned | 2012-01-25T17:46:17Z | - |
dc.date.available | 2012-01-25T17:46:17Z | - |
dc.date.issued | 2010 | - |
dc.identifier.issn | 0040-6090 | por |
dc.identifier.uri | https://hdl.handle.net/1822/16594 | - |
dc.description.abstract | Detailed structural, microstructural, biofilm formation and cytotoxicity studies were performed on Ti-Si-C-ON hard coatings prepared by dc reactive magnetron sputtering, in order to evaluate the relation among these properties. Compositional analysis showed the existence of two distinct regimens; regime I: high C/Si atomic ratio (C/Si ≥1,42) and intermediate N/Ti atomic ratio; regime II: low C/Si atomic ratio (C/Si≤0, 49) and low N/Ti atomic ratio. The structural analysis revealed that, in regime I, films crystallized in a B1-NaCl crystal structure typical of TiC0.2 N0.8. In regime II, the decrease of C/Si and increase in silicon concentration led to the formation of Ti-Si-CON along with a reduction of grain size in the films. Atomic Force Microscopy observations showed that the surface morphology of these Ti-Si-C-ON films became smoother when the silicon content increased and the nitrogen content decreased, which is consistent with the formation of nanosized clusters. Concerning biological properties, it was observed that cytotoxicity could be related with the titanium concentration while biofilm formation ability was found to be related with the surface morphology of the films. | por |
dc.description.sponsorship | The authors are grateful to Dr. Alicia Andres, Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), for her assistance in carrying out the Raman spectroscopic analysis. The project was financially supported by the CRUP Institution (project "Accao N0 E-1007/08"), and the Spanish Ministry of Science and Innovation (projects FUNCOAT CSD2008-00023 and HP2007-0116). | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | openAccess | por |
dc.subject | Ti–Si–C–N–O coatings | por |
dc.subject | Thin films | por |
dc.subject | Magnetron sputtering | por |
dc.subject | Structural properties | por |
dc.subject | Microstructural properties | por |
dc.subject | X-Ray Diffraction | por |
dc.subject | Atomic force microscopy | por |
dc.subject | Biocompatibility | por |
dc.title | Influence of the surface morphology and microstructure on the biological properties of Ti-Si-C-N-O coatings | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.sciencedirect.com/ | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 5694 | por |
oaire.citationEndPage | 5699 | por |
oaire.citationIssue | 20 | por |
oaire.citationTitle | Thin Solid Films | por |
oaire.citationVolume | 518 | por |
dc.identifier.doi | 10.1016/j.tsf.2010.05.050 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Thin Solid Films | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |