Production of nano-ceramic coatings on titanium implants

Composite titania coatings modified with hydroxyapatite nanoparticles were obtained on intraosseous implants fabricated from commercially pure titanium and titanium alloy Ti-2.5Al-5Mo-5V. The present study aims to identify consistency changes of morphological characteristics and physico-mechanical properties of titanium items coatings obtained by oxidation during induction heat treatment and modification with colloidal hydroxyapatite nanoparticles. The influence of temperature between 600 and 1200 °C and duration of thermal modification from 1 to 300 s was studied. It was established that high hardness about 6.7±1.9 GPa for nanocrystalline TiO₂ coatings and 19.2±0.6 GPa for nanoceramic 'TiO₂+HAp' coatings is reached at 1000 °C and 120 s