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Information × Registration Number 0224U032831, (0124U004040) , R & D reports Title Development of innovative biocompatible antibacterial coatings and technologies of their application on orthopedic implants for use in treatment injuries of military personnel and civilians popup.stage_title Встановлення закономірностей впливу основних технологічних параметрів процесу мікроплазмового розпилення цирконієвого дроту на властивості покриттів Head Maksymov Serhii Yu., Доктор технічних наук Registration Date 06-12-2024 Organization E. O. Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description1 The goal of the project is to develop scientific and technological recommendations for the selection of rational modes of microplasma sputtering of biocompatible coatings made of zirconium wire and HA powders doped with silver on the surface of implants and parts of endoprostheses, which will give them osteoinductive and antibacterial properties, increase the reliability of fixation of the implant in the bone and the term of the implant's functioning in the patient's body. popup.description2  As a result of the work carried out under the 1st stage of the Project, a set of studies was conducted to obtain coatings with biocompatible properties by the method of microplasma spraying of a wire made of zirconium alloy of the KTC-125 brand. The work established the regularities of the influence of the parameters of the microplasma spraying modes and determined their significance on the formation process and properties of Zr-Nb coatings. It was found that in the process of dispersion of Zr-Nb wire, particles are formed whose size varies from (128 ± 3.6) μm to (310 ± 31) μm, and their speed of movement from (8.0 ± 2.5) m/s to (28.7 ± 4.0) m/s. The material utilization factor was investigated when forming biocompatible Zr-Nb coatings by microplasma spraying, the value of which is in the range from 85% to 95%. Based on the results of the chemical composition of the surface of Zr-Nb coatings, it was concluded that the coatings are similar to the original material and correspond to the industrial zirconium alloy of the KTC-125 brand (Zr-2.5Nb). X-ray phase studies of Zr-Nb coatings revealed that they consist of an α-solid solution of Zr with the presence of: oxide (ZrO2), nitride (ZrN), carbide (ZrNb)C2. Coatings formed in the mode with minimum values of MPN parameters have the most porous structure (20.3 ± 2.0) %, and their surface microrelief has the highest roughness Sa (17 ± 0.1) μm, micropores up to 10 μm in size are observed at the peaks of the peaks. It was found that these coatings meet the standard requirements according to ISO 13179-1:2021 for the strength of adhesion to the base, the average value is (26 ± 2.1) MPa. It was confirmed that Zr-Nb coatings have better corrosion resistance properties in Ringer's solution than titanium alloy VT6. The main objects for applying such biocompatible Zr-Nb coatings are various implants for orthopedics and traumatology. Product Description popup.authors Voinarovych Serhii H. Kaliuzhnyi Serhii M. Kyslytsia Oleksandr M. Sviridova Iryna S. popup.nrat_date 2024-12-06 Close