Article
Physics, Applied
L. Cacot, G. Carnide, M. L. Kahn, R. Clergereaux, N. Naude, L. Stafford
Summary: This study investigates the effects of direct liquid injection in a low-frequency dielectric barrier discharge on thin-film deposition. It is found that pulsed, aerosol-assisted plasma deposition is limited by the amount of energy provided to precursor droplets.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Applied
Laura Cacot, Guillaume Carnide, Myrtil L. Kahn, Nicolas Naude, Luc Stafford, Richard Clergereaux
Summary: This study investigates the deposition of organosilicon coatings using pulsed direct-liquid injections combined with dielectric barrier discharge at atmospheric pressure. Hexamethyldisiloxane (HMDSO) is used as the precursor and nitrogen as the carrier gas. The morphology and fragmentation of the thin films depend on the energy provided by the filamentary discharge to the HMDSO droplets. Cross-linked and smooth coatings are achieved at low energies, while viscous and droplet-like structured thin films are deposited at higher energies, attributed to the soft polymerization of HMDSO droplets due to plasma-droplet interactions.
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Chemistry, Multidisciplinary
Sen Li, Jiazhen Sun, Rui Sun, Jie Pan, Lin Wang, Chen Chen, Qiang Chen, Zhongwei Liu
Summary: This paper investigates the radio frequency dielectric barrier discharge using argon at atmospheric pressure. It observed alpha mode and gamma mode discharges, and analyzed the luminescence intensity at different locations in the discharge gap. It was found that in gamma mode, the negative glow appears with a delay of 13 +/- 1 ns compared to the electron avalanche in alpha mode.
APPLIED SCIENCES-BASEL
(2021)
Article
Physics, Applied
Antoine Belinger, Simon Dap, Nicolas Naude
Summary: This study focuses on a diffuse Dielectric Barrier Discharge (DBD) in atmospheric pressure air and investigates the influence of capacitance on the discharge regime. By modifying the dielectric capacitance and using electrical measurements, the effective surface and current density of the discharge were obtained. The results highlight the significance of controlling capacitance to achieve diffuse discharge at high frequency, which has potential applications in atmospheric pressure coating.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Fluids & Plasmas
Yerbolat A. Ussenov, Moldir T. Toktamyssova, Merlan K. Dosbolayev, Maratbek T. Gabdullin, Talgat T. Daniyarov, Tlekkabul S. Ramazanov
Summary: This study presents a method for depositing CuOx thin films by combining atmospheric pressure plasma jet with spark discharge. The results show that films coated with combined discharge exhibit denser and thicker coatings, demonstrating superior performance in terms of film quality.
CONTRIBUTIONS TO PLASMA PHYSICS
(2021)
Article
Physics, Fluids & Plasmas
Chen Zhou, Chengxun Yuan, Anatoly Kudryavtsev, T. Yasar Katircioglu, Ismail Rafatov, Jingfeng Yao
Summary: This study focuses on the numerical investigation of dielectric barrier discharge in atmospheric pressure CO2 in a coaxial reactor. Using a numerical model based on the drift-diffusion theory and considering gas heating in a self-consistent manner, the study examines the influence of gas heating on discharge properties and CO2 decomposition across a wide range of applied voltage amplitudes and frequencies. The calculations indicate that neglecting gas heating by assuming a constant (room) gas temperature leads to a significant overestimation of CO2 conversion.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jumal Ibrahim, Sameer A. Al-Babtaineh, Samuel Cousens, Andrew Michelmore, Cormac Corr, Jason Whittle
Summary: This article investigates the discharge characteristics of an atmospheric pressure surface dielectric barrier discharge (SDBD) generated in helium and its ability to produce amine functionalised polymer coatings for cell therapy applications. The experimental results show that the plasma device is capable of generating glow-like discharge structures that are stable over the electrode area, and high electric fields around the mesh electrode. The surface characterisation of the coating revealed rich amine functionality, potentially suitable for cell adhesion and growth.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Jacopo Profili, Sara Babaei, Mariam Al Rashidi, Annie Dorris, Siavash Asadollahi, Andranik Sarkissian, Luc Stafford
Summary: Non-toxic organosilicon coatings with hydrophobic properties were successfully deposited on Kraft paper films using atmospheric-pressure dielectric barrier discharge. The stability of the plasma-deposited coating in different liquids (food simulants) was tested, and the results showed that the chemical composition and hydrophobicity of the coating were not significantly affected. The release of Si from the coating was also found to be lower than the typical amount detected in tap water.
Article
Chemistry, Physical
Sen Li, Jiazhen Sun, Rui Sun, Jie Pan, Lin Wang, Chen Chen, Qiang Chen, Zhongwei Liu
Summary: In this study, the characteristics of radio frequency dielectric barrier discharge (RF-DBD) using argon doped with nitrogen at atmospheric pressure were investigated. It was found that the discharge changed from glow discharge to filamentous discharge as the voltage increased, with the morphology of the filaments depending on the nitrogen doping ratio.
Article
Physics, Fluids & Plasmas
J. R. Wubs, H. Hoeft, M. Kettlitz, M. M. Becker, K-D Weltmann
Summary: This study investigates the impact of electrode proximity on the breakdown and development of pulsed-driven dielectric barrier discharges. The results show that a smaller gap distance leads to slower but more accelerated streamer propagation. However, the discharge structure in front of the anode is independent of the actual gap distance once the streamer has crossed the gap.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Article
Physics, Applied
Natalia Milaniak, Gaetan Laroche, Francoise Massines
Summary: Nanocomposite coatings were fabricated using ethyl lactate and silica nanoparticles through atmospheric-pressure plasma-enhanced chemical vapor deposition, with frequency-shift keying applied to alternate deposition between 1 kHz and 15 kHz voltages. The study revealed that deposition of nanoparticles mainly occurred at 1 kHz, while polymerization of ethyl lactate was predominant at 15 kHz. The nanocomposite coatings showed a higher deposition rate of nanoparticles in FSK mode compared to 1 kHz DBD, with different proportions of Si-O-Si and C-O bonds in the coatings. Additionally, in situ FTIR analysis detected the presence of SiO(2)NPs and the formation of CO2 during the process.
PLASMA PROCESSES AND POLYMERS
(2021)
Article
Physics, Fluids & Plasmas
China Natsume, Atsushi Komuro, Akira Ando
Summary: This study measured the surface charge density in parallel-plate dielectric barrier discharge (DBD) and evaluated the net electric field components. The results showed that the number of microdischarges (MDs) increased with applied voltage, while the spot radius of a single MD decreased with decreased gap length. The amount of charge per unit MD was found to be limited for short gaps. The study also discussed the spatial memory effect, which depends on the balance of surface charge density, and found that the memory effect may occur under certain conditions. The net electric field components were estimated and showed different behaviors before and after MD occurrence.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Article
Physics, Applied
Hiroaki Kakiuchi, Hiromasa Ohmi, Seiya Takeda, Kiyoshi Yasutake
Summary: This study investigated the deposition characteristics of SiOx layers using different plasmas at atmospheric pressure and a substrate temperature of 120 °C. When using helium-based plasma, uniform SiO2-like films can be obtained, but a decrease in gas flow rate leads to the incorporation of nanoparticles and deterioration of film quality. In contrast, using argon-based plasma does not affect film compactness regardless of gas flow rate. The results show the effectiveness of very high-frequency excitation of atmospheric pressure plasma for the formation of high-quality SiOx films without helium.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
W. G. Huo, X. Li, J. S. Lin, Y. T. Guo, Y. X. Wang, Y. Xia, M. Zhang
Summary: This paper investigates the effect of electrode voltage on the discharge mode in an atmospheric pressure polyethylene terephthalate dielectric barrier discharge produced in a helium-argon mixture. The results show a transition of discharge from local uniform to whole uniform with the increase in electrode voltage at a fixed argon content of 50%. Different discharge characteristic regions are obtained by varying the argon content, and the influence of argon content on argon spectra intensities is also studied.
Article
Physics, Fluids & Plasmas
Chengshuo Huang, Xiangqian Xie, Yangyang Zhou, Xi Zhu, Xinglei Cui, Zhi Fang
Summary: Surface modification techniques with plasma have been extensively researched to enhance the surface insulation capability of polymers under dry conditions. However, the relationship between treatment method, surface physical and chemical properties, and wet flashover voltage for inorganic ceramics remains unclear. In this study, nanosecond-pulsed dielectric barrier discharge with polydimethylsiloxane (PDMS) as the precursor was used to improve the surface insulation properties of ceramics under wet conditions. The optimal PDMS concentration was determined by investigating the relationships between PDMS concentration and water contact angle, and dry and wet flashover voltages. Surface charge dissipation test and various surface physio-chemical property measurements were conducted to understand the mechanism of surface insulation enhancement. The results demonstrated that a micron-thick film deposition with superhydrophobicity occurred at a PDMS concentration of 1.5%. The dry flashover voltage increased by 14.6% due to the induction of deep traps, while the wet flashover voltage increased by 66.7%. The gap between dry and wet flashover voltage decreased by 62.3% compared to the untreated sample due to the self-cleaning effect.
PLASMA SCIENCE & TECHNOLOGY
(2023)
Article
Physics, Applied
Fiorenza Fanelli, Francesco Fracassi
PLASMA PROCESSES AND POLYMERS
(2016)
Article
Physics, Applied
Piera Bosso, Fiorenza Fanelli, Francesco Fracassi
PLASMA PROCESSES AND POLYMERS
(2016)
Article
Chemistry, Applied
Vito Rizzi, Paola Fini, Fiorenza Fanelli, Tiziana Placido, Paola Semeraro, Teresa Sibillano, Aurore Fraix, Salvatore Sortino, Angela Agostiano, Cinzia Giannini, Pinalysa Cosma
FOOD HYDROCOLLOIDS
(2016)
Review
Physics, Applied
Fiorenza Fanelli, Piera Bosso, Anna Maria Mastrangelo, Francesco Fracassi
JAPANESE JOURNAL OF APPLIED PHYSICS
(2016)
Article
Materials Science, Coatings & Films
Fouzi Addou, Thomas Duguet, Piera Bosso, Anne Zhang, Eliane Amin-Chalhoub, Fiorenza Fanelli, Constantin Vahlas
SURFACE & COATINGS TECHNOLOGY
(2016)
Article
Biochemistry & Molecular Biology
Lucia D'Accolti, Nicoletta De Vietro, Fiorenza Fanelli, Caterina Fusco, Angelo Nacci, Francesco Fracassi
Article
Physics, Applied
Paul Brunet, Rocio Rincon, Jean-Michel Martinez, Zineb Matouk, Fiorenza Fanelli, Mohamed Chaker, Francoise Massines
PLASMA PROCESSES AND POLYMERS
(2017)
Article
Materials Science, Coatings & Films
Fiorenza Fanelli, Francesco Fracassi
SURFACE & COATINGS TECHNOLOGY
(2017)
Article
Chemistry, Physical
Jennifer Gubitosa, Vito Rizzi, Angela Lopedota, Paola Fini, Anna Laurenzana, Gabriella Fibbi, Fiorenza Fanelli, Andrea Petrella, Valentino Laquintana, Nunzio Denora, Roberto Comparelli, Pinalysa Cosma
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2018)
Article
Materials Science, Coatings & Films
Fiorenza Fanelli, Anna Maria Mastrangelo, Gianvito Caputo, Francesco Fracassi
SURFACE & COATINGS TECHNOLOGY
(2019)
Article
Chemistry, Multidisciplinary
Fiorenza Fanelli, Francesco Fracassi, Annamaria Lapenna, Valeria Angarano, Gerardo Palazzo, Antonia Mallardi
ADVANCED MATERIALS INTERFACES
(2018)
Article
Chemistry, Physical
Vito Rizzi, Jennifer Gubitosa, Paola Fini, Fiorenza Fanelli, Aurore Fraix, Salvatore Sortino, Angela Agostiano, Luisa De Cola, Angelo Nacci, Pinalysa Cosma
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2019)
Article
Materials Science, Coatings & Films
Vincenza Armenise, Antonella Milella, Francesco Fracassi, Piera Bosso, Fiorenza Fanelli
SURFACE & COATINGS TECHNOLOGY
(2019)
Article
Chemistry, Physical
Annamaria Lapenna, Fiorenza Fanelli, Francesco Fracassi, Vincenza Armenise, Valeria Angarano, Gerardo Palazzo, Antonia Mallardi
Article
Chemistry, Multidisciplinary
Eloisa Sardella, Roberto Gristina, Fiorenza Fanelli, Valeria Veronico, Gabriella Da Ponte, Jennifer Kroth, Francesco Fracassi, Pietro Favia
APPLIED SCIENCES-BASEL
(2020)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)