3 documents found, page 1 of 1
Femtosecond laser surface texturing of titanium as a method to reduce the adhes...
Cunha, Alexandre; Elie, Anne-Marie; Plawinski, Laurent; Serro, Ana Paula; Rego, Ana Maria Botelho do; Almeida, Amélia; Urdaci, Maria C.The aim of the present work was to investigate the possibility of using femtosecond laser surface texturing as a method to reduce the colonization of Grade 2 Titanium alloy surfaces by Staphylococcus aureus and the subsequent formation of biofilm. The laser treatments were carried out with a Yb:KYW chirped-pulse-regenerative amplification laser system with a central wavelength of 1030 nm and a pulse duration of...
Ultrafast laser texturing of Ti-6Al-4V surfaces for biomedical applications
Cunha, Alexandre; Oliveira, Vitor; Serro, Ana Paula; Zouani, Omar El-Farouk; Almeida, Amélia; Durrieu, Marie-Christine; Vilar, RuiBy controlling processing parameters such as the average fluence, number of laser pulses and beam polarization direction, different types of multiscale surface textures were produced on Ti-6Al-4V surfaces by ultrafast laser processing. The samples were textured in ambient atmosphere using an Yb:KYW chirped-pulse-regenerative amplification laser with a wavelength of 1030 nm and pulse duration of 500 fs. The wett...
Wetting behaviour of femtosecond laser textured Ti-6Al-4V surfaces
Cunha, Alexandre; Serro, Ana Paula; Oliveira, Vitor; Almeida, Amélia; Vilar, Rui; DURRIEU, Marie-ChristineThe aim of the present work was to investigate the wetting behaviour of biomedical grade Ti-6Al-4V alloy surfaces textured by a femtosecond laser treatment. The material was treated in ambient atmosphere using an Yb: KYW chirped-pulse-regenerative amplification laser with a wavelength of 1030 nm and a pulse duration of 500 fs. Four main types of surface textures were obtained depending on the processing paramet...