Effect of chemical and thermochemical treatments on the surface properties of commercially pure titanium

Cruz, Alejandro López; Ramos, Adrian Paz; Pazos, L.; Parodi, María Belén; Ybarra, Gabriel; Ruiz, Jesús Eduardo González

doi:10.1590/s1517-707620200004.1146

Cited by 1 publication

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“…Hydrophilic surfaces can be constructed by the presence of polar functional groups. Sodium titanate is reported to have hydroxyl groups 22 , a strong polar group, and it may have influenced the wettability enhancement. Surface wettability of a material is of vital importance for protein adsorption and cell adhesion.…”

Section: Surface Wettabilitymentioning

confidence: 99%

Titanium Bioactive Surface Formation Via Alkali and Heat Treatments for Rapid Osseointegration

et al. 2021

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Titanium and its alloys are widely used as implant materials and many studies to accelerate the osseointegration have been performed. This work aims to evaluate the formation of a bioactive surface in commercially pure titanium (cp-Ti) grade 4 after alkali (AT) and heat treatments at 600 °C (AHT600) and 900 °C (AHT900). Characterization techniques were SEM, AFM, Raman, TF-XRD, wettability, nanoindentation and indentation adhesion. Additionally, SBF soaking tests were performed to evaluate apatite growth and showed that alkali and heat treatment accelerates apatite growth. The AT samples formed sodium hydrogen titanate (1 µm thick), and AHT600 and AHT900 formed sodium titanate (1 µm thick), while rutile TiO 2 increased with temperature, reaching up to 5 µm thick and the surface changed from slightly hydrophilic to fully hydrophilic. Roughness and surface area increased, especially in AHT900. The hardness of the surface layer was significantly increased by the heat treatment.

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Section: Surface Wettabilitymentioning

confidence: 99%