| Autor: |
Voinarovych, S. G., Alontseva, D. L., Kyslytsia, O. M., Kaliuzhnyi, S. M., Tsymbalista, T. V., Dyman, M. M. |
| Předmět: |
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| Zdroj: |
Paton Welding Journal; 2022, Issue 9, p41-46, 6p |
| Abstrakt: |
The work is devoted to studying the process of microplasma spraying of coatings from zirconium wire. technological possibility of formation of porous biocompatible Zr-coatings with bulk porosity in the range from 2 to 20 % and up to 300 µm size is demonstrated. It is shown that controlling the content of bulk porosity in Zr-coating allows changing elasticity modulus, reducing it by 14 times compared to the source cast material that allows getting closer to a bone modulus and reducing the stress shielding effect. the values of the adhesion strength of Zr-coating to the base from an alloy of Vt6 grade were determined, its average value being higher than 26.9 ± 4.7 Mpa and meeting the international requirements of IsO 13179-1:2021. Based on the obtained investigation results, the values of technological parameters were established for spraying of biocompatible Zr-coatings by the method of microplasma spraying of the wire from Ktts-110 grade alloy that allows forming functional coatings on the surface of different types of endoprostheses, which will provide a stronger and more reliable bonding of the endoprosthesis with the osseous tissue. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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