| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Nečas, David
University of Chemistry and Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Harmonizing microstructures and enhancing mechanical resilience : Novel powder metallurgy approach for Zn–Mg alloyscitations
- 2024Exploring the microstructure, mechanical properties, and corrosion resistance of innovative bioabsorbable Zn-Mg-(Si) alloys fabricated via powder metallurgy techniquescitations
- 2024Exploring the microstructure, mechanical properties, and corrosion resistance of innovative bioabsorbable Zn-Mg-(Si) alloys fabricated via powder metallurgy techniquescitations
- 2024Harmonizing microstructures and enhancing mechanical resiliencecitations
- 2023Nanograined Zinc Alloys with Improved Mechanical Properties Prepared by Powder Metallurgy
- 2023The Effect of Treatment of Powder Precursor on the Properties of Compacted Mg-4Y-3Re Alloy
- 2023Effect of Laser Remelting of Fe-Based Thermally Sprayed Coating on AZ91 Magnesium Alloy on Its Structural and Tribological Propertiescitations
- 2023Depth profiling of thin plasma-polymerized amine films using GDOES in an Ar-O-2 plasmacitations
- 2022The evolution of microstructure and mechanical properties of Zn-0.8Mg-0.2Sr alloy prepared by casting and extrusioncitations
- 2022The evolution of microstructure and mechanical properties of Zn-0.8Mg-0.2Sr alloy prepared by casting and extrusioncitations
- 2022Ultrafine-Grained Zn-Mg-Sr Alloy Synthesized by Mechanical Alloying and Spark Plasma Sinteringcitations
- 2022Microstructure and Phase Composition of thin Protective Layers of Titanium Aluminides Prepared by Self-Propagating High-Temperature Synthesis (SHS) for Ti-6Al-4V Alloycitations
- 2022Advanced Zinc–Magnesium Alloys Prepared by Mechanical Alloying and Spark Plasma Sinteringcitations
- 2021The effect of powder size on the mechanical and corrosion properties and the ignition temperature of WE43 alloy prepared by spark plasma sinteringcitations
- 2020Running-in friction of hip joint replacements can be significantly reduced: The effect of surface-textured acetabular cup ; Tření v náhradách kyčelního kloubu v průběhu záběhové fáze může být významně sníženo: Vliv texturované kloubní jamkycitations
- 2017Application of imaging spectroscopic reflectometry for characterization of gold reduction from organometallic compound by means of plasma jet technology ; Využití zobrazovací spektroskopické reflektometrie pro charakterizaci redukce zlata z organokovových látek pomocí technologie plasmového paprskucitations
Places of action
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article
Running-in friction of hip joint replacements can be significantly reduced: The effect of surface-textured acetabular cup ; Tření v náhradách kyčelního kloubu v průběhu záběhové fáze může být významně sníženo: Vliv texturované kloubní jamky
Abstract
Hip joint replacements represent the most effective way of treatment for patients suffering from joint diseases. Despite the rapid improvement of implant materials over the last few decades, limited longevity associated with wear-related complications persists as the main drawback. Therefore, improved tribological performance is required in order to extend the service life of replacements. The effect of surface texturing of UHMWPE acetabular cup was investigated in the present study. Unique tilling method was utilized for manufacturing the dimples with controlled diameter and depths on the contact surface of the cup. The experiments with four commercial femoral components and two model lubricants were realized. The main attention was paid to a coefficient of friction considering the differences between the original and the dimpled cups. Results showed remarkable lowering of friction, in general. Focusing on the simulated human synovial fluid, friction was reduced by 40% (alumina ceramic), 38.8% (zirconia toughened ceramic), 25.5% (metal), and 9.9% (oxinium). In addition, the dimples helped to keep the friction stable without fluctuations. To conclude, the paper brings a new insight into frictional behaviour of the hip replacements during running-in phase which is essential for overall implant lifespan. It is believed that proper surface texturing may rapidly improve the life quality of millions of patients and may lead to considerable financial savings. ; Náhrada kyčelního kloubu představuje nejefektivnější formu léčby pro pacienty trpící nemocemi kloubů. Navzdory významnému pokroku v oblasti vývoje kloubních materiálů v uplynulých několika desetiletích, je stále jednou z hlavních nevýhod omezená životnost náhrad, která obvykle souvisí s opotřebením povrchů. Proto je při snaze prodloužit dobu přežití implantátu třeba zlepšit tribologické parametry náhrad. Tato studie se zabývá posouzením vlivu cílené změny topografie povrchu UHMWPE kloubních jamky. Pro výrobu malých vtisků o známém průměru a hloubce byla využita ...