Fabrication and physico-mechanical properties of thin magnetron sputter deposited silver-containing hydroxyapatite films
Applied Surface Science, ISSN: 0169-4332, Vol: 360, Page: 929-935
2016
- 47Citations
- 54Captures
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Article Description
As a measure of the prevention of implant associated infections, a number of strategies have been recently applied. Silver-containing materials possessing antibacterial activity as expected might have wide applications in orthopedics and dentistry. The present work focuses on the physico-chemical characterization of silver-containing hydroxyapatite (Ag-HA) coating obtained by radio frequency (RF) magnetron sputtering. Mechanochemically synthesized Ag-HA powder (Ca 10⿿x Ag x (PO 4 ) 6 (OH) 2⿿x, x = 1.5) was used as a precursor for sputtering target preparation. Morphology, composition, crystallinity, physico-mechanical features (Young's modulus and nanohardness) of the deposited Ag-HA coatings were investigated. The sputtering of the nanostructured multicomponent target at the applied process conditions allowed to deposit crystalline Ag-HA coating which was confirmed by XRD and FTIR data. The SEM results revealed the formation of the coating with the grain morphology and columnar cross-section structure. The EDX analysis confirmed that Ag-HA coating contained Ca, P, O and Ag with the Ca/P ratio of 1.6 ± 0.1. The evolution of the mechanical properties allowed to conclude that addition of silver to HA film caused increase of the coating nanohardness and elastic modulus compared with those of pure HA thin films deposited under the same deposition conditions.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0169433215027828; http://dx.doi.org/10.1016/j.apsusc.2015.11.087; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84952865084&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0169433215027828; https://dx.doi.org/10.1016/j.apsusc.2015.11.087
Elsevier BV
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