Nanomechanical and nanotribological properties of bioactive titanium surfaces prepared by alkali treatment

Mechanical modulation and bioactive surface modification of porous Ti–10Mo alloy for bone implants

“…The alkali treatment could also significantly improve the apatite-inducing ability of Ti-10Mo alloy. In addition, the heat treatment could improve the film adhesion to Ti-10Mo alloy substrate, as reported in other previous works [29,30].…”

Tribo-mechanical characterization of rough, porous and bioactive Ti anodic layers

“…Liu et al (2004) asserted that oxide coatings synthesized by anodization in the dielectric rupture regime have high hardness, adhesion, strength, and wear resistance. Indeed, the coatings produced here presented superior tribological performance than that from alkaline heat treatment (AHT) (de Souza et al, 2010b), which is a well-known effective method to promote bioactivity on Ti surfaces (Kokubo et al, 2003;Nishiguchi et al, 1999Nishiguchi et al, , 2001Takadama et al, 2001). In the AHT, the critical load for scratch tests was determined as 5.5 mN, whereas for these Ca-P anodic layers it was 220-280 mN.…”

Capacidad de formación de apatitas de películas delgadas de hidroxiapatita modificadas por ablación láser

“…La Figura 1a muestra una estructura amorfa y con tamaño de grano pequeño lo cual está acorde a lo reportado previamente en la literatura [10,13,17]. Para mejorar la adhesión de la película de hidrogel al sustrato se realizó un tratamiento térmico debido a que la forma del hidrogel en Ti sin tratamiento térmico es mecánicamente inestable [18]. Durante este proceso la capa de hidrogel se deshidrata, aumenta el tamaño de grano y forma una capa más compacta y densificada como se observa en la Figura 1b.…”