scholarly journals Plasma Modification of Carbon Coating Produced by RF CVD on Oxidized NiTi Shape Memory Alloy under Glow-Discharge Conditions

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4842
Author(s):  
Justyna Witkowska ◽  
Michał Tarnowski ◽  
Emilia Choińska ◽  
Marek Kulpa ◽  
Jacek Szade ◽  
...  
Keyword(s):  
Low Temperature ◽  
Glow Discharge ◽  
Amorphous Carbon ◽  
Carbon Coating ◽  
Chemical Vapour ◽  
Contact Angles ◽  
Plasma Modification ◽  
Low Temperature Plasma ◽  
Short Term ◽  
Temperature Plasma

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.

scholarly journals Low-temperature plasma modification of carbon nanofillers for improved performance of advanced rubber composites

2019 ◽  
Vol 77 (2) ◽  
pp. 1015-1048 ◽  
Author(s):  
Mariusz Siciński ◽  
Dariusz M. Bieliński ◽  
Hieronim Szymanowski ◽  
Tomasz Gozdek ◽  
Anna Piątkowska
Keyword(s):  
Low Temperature ◽  
Plasma Modification ◽  
Low Temperature Plasma ◽  
Rubber Composites ◽  
Temperature Plasma ◽  
Carbon Nanofillers ◽  
Improved Performance

Low-temperature plasma modification of polymers — Methods and equipment

Polimery ◽  
2011 ◽  
Vol 56 (03) ◽  
pp. 185-195 ◽  
Author(s):  
Marian Zenkiewicz ◽  
Piotr Rytlewski ◽  
Rafal Malinowski
Keyword(s):  
Low Temperature ◽  
Plasma Modification ◽  
Low Temperature Plasma ◽  
Temperature Plasma

scholarly journals Pulsed UV Laser and Low Temperature Plasma Modification on Polyester Microfibre

2000 ◽  
Vol 46 (2) ◽  
pp. 32-41 ◽  
Author(s):  
Wilson Wong ◽  
Kwong Chan ◽  
Kwok Wing Yeung ◽  
Kai Shui Lau
Keyword(s):  
Low Temperature ◽  
Plasma Modification ◽  
Low Temperature Plasma ◽  
Uv Laser ◽  
Temperature Plasma

Generation of uniform low-temperature plasma in a pulsed non-self-sustained glow discharge with a large-area hollow cathode

2017 ◽  
Vol 43 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Yu. H. Akhmadeev ◽  
V. V. Denisov ◽  
N. N. Koval ◽  
S. S. Kovalsky ◽  
I. V. Lopatin ◽  
...  
Keyword(s):  
Low Temperature ◽  
Glow Discharge ◽  
Hollow Cathode ◽  
Low Temperature Plasma ◽  
Large Area ◽  
Temperature Plasma

scholarly journals Surface Characterization of Low Temperature Plasma-Induced Cashmere Fibre by Air Gas

2017 ◽  
Vol 25 (0) ◽  
pp. 37-41 ◽  
Author(s):  
Yong Wang ◽  
Weidong Yu ◽  
Weidong Yu
Keyword(s):  
Low Temperature ◽  
Surface Characterization ◽  
Plasma Modification ◽  
Tensile Behaviour ◽  
Chemical Compositions ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Polar Groups ◽  
Surface Morphologies

Low temperature plasma (LTP) processing technology was successfully applied to modify cashmere fibres and three kinds of assemblies were formed, i.e., weak-treated, optimised -treated and severe-treated ones. Treatment parameters were optimised in terms of the tensile behaviour, friction effect, wettability and touch feeling of cashmere without major modification of the properties inside the fibre. Detailed characterisation was performed to investigate the surface morphologies and chemical compositions of plasma-induced fibres. SEM demonstrates different minor etching effects of the treated cashmere fibres. XPS results indicate a significant increase in surface concentrations of O and N, and an obvious decrease in C after different LTP treatments as a whole. The C-H/C-C non-polar bonds were reduced and C-O/C-N, C = O polar groups were remarkably increased on the cashmere surface after plasma modification. In addition, a carboxyl group (O-C = O) formed. It is found that oxygen-containing bonds, namely, C-O/C-N, C = O and O-C = O, are responsible for the hydrophilic properties of cashmere.

Advances in the Application of the Low Temperature Plasma Technology in Wastewater Treatment

2015 ◽  
Vol 737 ◽  
pp. 528-532
Author(s):  
Shuo Han ◽  
Qi Hui Xu ◽  
Rui Ping Zhang ◽  
Guo Qing Jiang ◽  
Jian Dong Ding ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Glow Discharge ◽  
High Voltage ◽  
Barrier Discharge ◽  
Low Temperature Plasma ◽  
Pulsed Discharge ◽  
Plasma Technology ◽  
Temperature Plasma ◽  
Dielectric Barrier

The low-temperature plasma technology has the comprehensive action of high-energy electron, ultraviolet light, ozone etc. The technology that integrates light, electronic and chemical oxidation into one process has a good development prospect in wastewater treatment. In this paper, the research status and development trend of high-voltage pulsed discharge, dielectric barrier discharge, glow discharge for organic wastewater treatment at home and abroad are summarized. The current main existing problems include single treatment object oriented. In the future, the study about this technique should be focused on the optimization process, the reduction of the processing cost and energy consumption, so that this technology can be applied to practical wastewater treatment as soon as possible.Key words: Low temperature plasma technology; High-voltage pulsed discharge; Glow discharge; Dielectric barrier discharge; Wastewater

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