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Effect of additive for preparation of reduced-porosity ceramic layer on Ti-6Al-4 V alloy for orthopaedic and trauma implants

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F21%3A10247721" target="_blank" >RIV/61989100:27360/21:10247721 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/61989100:27640/21:10247721 RIV/68407700:21220/21:00350134 RIV/61989100:27740/21:10247721

  • Výsledek na webu

    <a href="https://www.sciencedirect.com/science/article/pii/S2468023021002868" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2468023021002868</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.surfin.2021.101209" target="_blank" >10.1016/j.surfin.2021.101209</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Effect of additive for preparation of reduced-porosity ceramic layer on Ti-6Al-4 V alloy for orthopaedic and trauma implants

  • Popis výsledku v původním jazyce

    The micro-arc oxidation (MAO) method using a pulsed unipolar source was used to prepare coatings suitable for orthopaedic and trauma implants. The application of the MAO pilot plant containing the alkaline electrolyte Na2SiO3.9H2O, NaOH and glycerol additive was studied on a Ti-6Al-4 V alloy while focusing on reducing the pore size and improving the tribological and corrosion properties. The effects of stress, discharge time, duty cycle and the effect of the additive on the morphology of the coating, coating thickness, pore size, chemical and phase composition, wear resistance and corrosion resistance were described. X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) methods equipped with X-ray energy dispersive spectroscopy (EDX), pin-on-disc, tribometer, potentiodynamic polarisation were used to characterise the coatings. Pulsation of the unipolar source and microdischarge intensity of voltage influenced the growth of the sample surface layer, surface morphology and silicon content in the analysed coating. A significant difference in pore sizes was confirmed when a glycerol-containing electrolyte was applied. The pore size distribution influenced the wear resistance and stability of the coefficient of friction. The corrosion behaviour of the prepared coatings on Ti-6Al-4 V alloy was studied in physiological solutions and evaluated by using potentiodynamic curves. Corrosion resistance was evaluated based on the corrosion potentials, current densities, and polarisation resistance; a significant improvement in corrosion resistance was observed in the coatings prepared in the electrolyte with added glycerol and the presence of smaller pores. (C) 2021

  • Název v anglickém jazyce

    Effect of additive for preparation of reduced-porosity ceramic layer on Ti-6Al-4 V alloy for orthopaedic and trauma implants

  • Popis výsledku anglicky

    The micro-arc oxidation (MAO) method using a pulsed unipolar source was used to prepare coatings suitable for orthopaedic and trauma implants. The application of the MAO pilot plant containing the alkaline electrolyte Na2SiO3.9H2O, NaOH and glycerol additive was studied on a Ti-6Al-4 V alloy while focusing on reducing the pore size and improving the tribological and corrosion properties. The effects of stress, discharge time, duty cycle and the effect of the additive on the morphology of the coating, coating thickness, pore size, chemical and phase composition, wear resistance and corrosion resistance were described. X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) methods equipped with X-ray energy dispersive spectroscopy (EDX), pin-on-disc, tribometer, potentiodynamic polarisation were used to characterise the coatings. Pulsation of the unipolar source and microdischarge intensity of voltage influenced the growth of the sample surface layer, surface morphology and silicon content in the analysed coating. A significant difference in pore sizes was confirmed when a glycerol-containing electrolyte was applied. The pore size distribution influenced the wear resistance and stability of the coefficient of friction. The corrosion behaviour of the prepared coatings on Ti-6Al-4 V alloy was studied in physiological solutions and evaluated by using potentiodynamic curves. Corrosion resistance was evaluated based on the corrosion potentials, current densities, and polarisation resistance; a significant improvement in corrosion resistance was observed in the coatings prepared in the electrolyte with added glycerol and the presence of smaller pores. (C) 2021

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    20500 - Materials engineering

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/TP01010036" target="_blank" >TP01010036: PRE SEED fond II VŠB - Technické univerzity Ostrava</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Ostatní

  • Rok uplatnění

    2021

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Surfaces and Interfaces

  • ISSN

    2468-0230

  • e-ISSN

  • Svazek periodika

    25

  • Číslo periodika v rámci svazku

    srpen 2021

  • Stát vydavatele periodika

    US - Spojené státy americké

  • Počet stran výsledku

    14

  • Strana od-do

  • Kód UT WoS článku

    000681239500002

  • EID výsledku v databázi Scopus

    2-s2.0-85107064233