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TitleAg-Ti(C,N)-based coatings for biomedical applications : influence of silver content on the structural properties
Author(s)Manninen, N. K.
Galindo, R. Escobar
Benito, N.
Figueiredo, N. M.
Cavaleiro, A.
Palacio, C.
Carvalho, S.
Issue date26-Aug-2011
PublisherIOP Publishing
JournalJournal of Physics D: Applied Physics
Abstract(s)Ag–TiCN coatings were deposited by dc reactive magnetron sputtering and their structural and morphological properties were evaluated. Compositional analysis showed the existence of Ag–TiCN coatings with different Ag/Ti atomic ratios (ranging from 0 to 1.49). The structural and morphological properties are well correlated with the evolution of Ag/Ti atomic ratio. For the samples with low Ag/Ti atomic ratio (below 0.20) the coatings crystallize in a B1-NaCl crystal structure typical of TiC0.3N0.7. The increase in Ag/Ti atomic ratio promoted the formation of Ag crystalline phases as well as amorphous CNx phases detected in both x-ray photoelectron spectroscopy and Raman spectroscopy analysis. Simultaneously to the formation of Ag crystalline phases and amorphous carbon-based phases, a decrease in TiC0.3N0.7 grain size was observed as well as the densification of coatings.
AccessOpen access
Appears in Collections:CDF - GRF - Artigos/Papers (with refereeing)

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