Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Stefan Makowski"'
Autor:
Michal Starczewski, Patrycja Bobowik, Piotr Kazimierz Urbanski, Stefan Makowski, Michal Morys
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-8 (2024)
Abstract To achieve high performance, wheelchair fencing (WF) athletes are required to exhibit good physiological and timing indicators. The main aims of this study were to assess the relationship between the results of the repeated sprint ability (R
Externí odkaz:
https://doaj.org/article/6afa331d8bae4269ae0a44cf570e249a
Autor:
Stefan Makowski, Fabian Härtwig, Marcos Soldera, Mahmoud Ojeil, Lars Lorenz, Frank Kaulfuß, Andrés Fabián Lasagni
Publikováno v:
Lubricants, Vol 12, Iss 6, p 200 (2024)
Vacuum and air atmospheres impose very different requirements on tribological-loaded contacts, which usually require different surface materials. While hard tetrahedral amorphous carbon (ta-C) coatings provide good tribological properties in air, sof
Externí odkaz:
https://doaj.org/article/1c99b0d2df5647f6b06e9dc786e337ec
Autor:
Takuya Kuwahara, Pedro A. Romero, Stefan Makowski, Volker Weihnacht, Gianpietro Moras, Michael Moseler
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
The mechanism underlying the superlubricity of tetrahedral amorphous carbon coatings lubricated with organic friction modifiers is still under debate. Here the authors combine experiments and simulations to reveal that superlubricious layers form due
Externí odkaz:
https://doaj.org/article/8593c28d827047fc94d206e30d474229
Autor:
Filofteia-Laura Toma, Anja Meyer, Oliver Kunze, Irina Shakhverdova, Björn Matthey, Fabian Härtwig, Markus Mayer, Annegret Potthoff, Johannes Pötschke, Stefan Makowski
Publikováno v:
Journal of Thermal Spray Technology. 32:456-472
Thermally sprayed WC-based hardmetal coatings offer high hardness, good sliding wear and abrasion performance and find large applications in mechanical engineering, valve construction, or offshore applications. WC-Co coatings are mainly produced by h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1752b1b7fa9c1444e7591e9e137a188
https://doi.org/10.1007/s11666-023-01529-x
https://doi.org/10.1007/s11666-023-01529-x
Publikováno v:
Journal of Materials Science. 56:18740-18748
Coatings used in tribological applications often exhibit high hardness and stiffness to achieve high wear resistance. One coating characterization method frequently used is nanoindentation which allows the determination of indentation hardness and in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2796af3b1b54b05f1950c3e927fd5039
https://doi.org/10.1007/s10853-021-06448-2
https://doi.org/10.1007/s10853-021-06448-2
Publikováno v:
Materials; Volume 15; Issue 12; Pages: 4317
Materials 15(2022), 4317
Materials 15(2022), 4317
Triboscopy focuses on the analysis of the temporal evolution of a tribological system, combining local and time-resolved information, most commonly the evolution of friction. In this work, this technique is applied on measurements, which were carried
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc60a5d58a218d7060cde3b2fba49b5a
Autor:
Fabian Härtwig, Lars Lorenz, Stefan Makowski, Matthias Krause, Carsten Habenicht, Andrés Fabián Lasagni
Publikováno v:
Materials; Volume 15; Issue 7; Pages: 2534
Materials 15(2022), 2534
Materials 15(2022), 2534
Vacuum environments provide challenging conditions for tribological systems. MoS2 is one of the materials commonly known to provide low friction for both ambient and vacuum conditions. However, it also exhibits poor wear resistance and low ability to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f58c8856d39cf47bff47a42cd6f7c00
https://publica.fraunhofer.de/handle/publica/417638
https://publica.fraunhofer.de/handle/publica/417638
In this work, fracture properties of different types of hydrogen-free amorphous carbon coatings were studied in detail, using ta-C, ta-C:B and a-C:Mo coatings deposited at nominal coating thickness of 1 mm and 6 mm. Two common test methods with addit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27fa0517341bf72ad668cba67aee9e4e
https://publica.fraunhofer.de/handle/publica/416479
https://publica.fraunhofer.de/handle/publica/416479
Autor:
Yun Long, Jules Galipaud, Volker Weihnacht, Stefan Makowski, Jean Michel Martin, Maria-Isabel De Barros Bouchet
Systematic friction tests have been performed to unveil the key factors for reaching superlubricity (CoF < 0.01) in the presence of unsaturated fatty acid-based lubricants under boundary lubrication regime. The impact of different tribo-pairs and lub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c80db7e4693536f16216d0f06c7398c
https://publica.fraunhofer.de/handle/publica/417835
https://publica.fraunhofer.de/handle/publica/417835