METHOD FOR OBTAINING STRUCTURED POROUS COATING ON TITANIUM Russian patent published in 2018 - IPC C23C4/10 C23C4/12 C23C4/18 

FIELD: technological processes.

SUBSTANCE: invention relates to a method for modifying a surface of titanium to produce a structured porous layer comprising nano- and micropores, and can be used in medical technology in the manufacture of biologically compatible endoprostheses and implants for traumatology, orthopedics, plastic surgery, dental implants, for the preparation of the surface of titanium implants for the application of bioactive coatings, as well as for the manufacture of catalyst carriers and composite materials that are used in various fields of technology. Method comprises treating the surface of titanium in an argon medium by moving a laser beam with a power of no more than 300 W, preferably 250–270 W, at a speed of at least 20 mm/s, preferably 25–35 mm/s, with the simultaneous supply to the irradiation zone of the titanium carbide powder fraction 80/100 mcm, the subsequent acid etching by immersion in nitric acid for 3–5 days, washing and drying at a temperature of 50–100 °C.

EFFECT: technical result of the invention is an increase in the surface area of the porous coating on titanium due to the formation of a hierarchical structure of the porous layer including micro- and nanosized pores, which increases the adhesion of the impregnating material in the preparation of composite coatings and the speed of integration of implants.

3 cl, 3 ex, 2 dwg