http://hdl.handle.net/20.500.12128/21231
Tytuł: | Plasma modification of carbon coating produced by RF CVD on oxidized NiTi shape memory alloy under glow-discharge conditions |
Autor: | Witkowska, Justyna Tarnowski, Michał Choińska, Emilia Kulpa, Marek Szade, Jacek Raugh, Gerhard Święszkowski, Wojciech Wierzchoń, Tadeusz |
Słowa kluczowe: | NiTi alloy; glow-discharge treatments; carbon coatings; plasma oxygen modification; wettability; surface free energy |
Data wydania: | 2021 |
Źródło: | "Materials" (2021), iss. 17, art. no. 4842, s. 1-11 |
Abstrakt: | Our previous work has shown that for cardiac applications, combining low-temperature plasma oxidation with an amorphous carbon coating (a-C:N:H type) constitutes a prospective solution. In this study, a short-term modification by low-temperature oxygen plasma is proposed as an example and a method for shaping the topography and surface energy of the outer amorphous carbon coating, produced via the Radio-Frequency Chemical Vapour Deposition (RFCVD) method on NiTi alloy oxidized under glow-discharge conditions. This treatment alters the chemical composition of the outer zone of the surface layer. A slight increase is also noted in the surface roughness at the nanoscale. The contact angles were shown to increase by about 20% for water and 30% for diiodomethane, while the surface free energy decreased by ca. 11%. The obtained results indicate that even short-term contact with low-temperature plasma can shape the surface properties of the carbon coating, an outcome which shows potential in terms of its use in medical applications. |
URI: | http://hdl.handle.net/20.500.12128/21231 |
DOI: | 10.3390/ma14174842 |
ISSN: | 1996-1944 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Kulpa_Szade_plasma_modification_of_carbon.pdf | 1,37 MB | Adobe PDF | Przejrzyj / Otwórz |
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