Hollow cathode plasma nitriding of medical grade Ti6Al4V: A comprehensive study.
Cristian Padilha FontouraMelissa Machado RodriguesCharlene Silvestrin Celi GarciaKlester Dos Santos SouzaJoão Antonio Pêgas HenriquesJanete Eunice ZorziMariana Roesch-ElyCesar AguzzoliPublished in: Journal of biomaterials applications (2020)
Ti6Al4V used in biomedical applications still has several surface-related problems, such as poor bone compatibility and low wear resistance. In this work, the formation of a protective layer of titanium nitride obtained by plasma treatment in hollow cathode was studied, and the best experimental conditions were verified by a statistical factorial design of experiments. The samples were characterized in terms of their physical and chemical properties, correlating the effects of time (min) and temperature (°C). An achieved ideal condition was further analysed in terms of in vitro cytotoxicity, micro-abrasion, and electrochemical properties. The carried-out assessment has shown that nitrided condition has an improvement in wettability, microhardness, along with TixNy formation and roughness increment, when compared to pristine condition.
Keyphrases
- molecularly imprinted
- reduced graphene oxide
- mental health
- gold nanoparticles
- healthcare
- solar cells
- ion batteries
- physical activity
- bone mineral density
- metal organic framework
- quantum dots
- soft tissue
- high resolution
- smoking cessation
- postmenopausal women
- label free
- body composition
- combination therapy
- solid phase extraction
- replacement therapy
- walled carbon nanotubes
- visible light
- bone regeneration