Article
Chemistry, Multidisciplinary
Jacob Manzi, Ariel E. E. Weltner, Tony Varghese, Nicholas McKibben, Mia Busuladzic-Begic, David Estrada, Harish Subbaraman
Summary: This paper demonstrates the use of plasma-jet printing (PJP) to deposit thermoelectric nanoflakes onto flexible substrates at room temperature, with substantial improvements in material adhesion and flexibility observed. The printed films exhibit electrical conductivity of 2.5 x 10(3) S m(-1) and a power factor of 70 mu W m(-1) K-2 at room temperature. This advancement in plasma jet printing promotes not only the development of energy harvesting but also large-scale flexible electronics and sensors for space and commercial applications.
Article
Chemistry, Analytical
Liang Fang, Ruoyu Zhang, Hongwei Duan, Jinqiang Chang, Zhaoquan Zeng, Yifu Qian, Mianzhe Hong
Summary: A new method for resistive sensing of seed cotton moisture regain (MR) measurement based on pressure compensation is proposed in this study. The method was evaluated and compared with other prediction models, and the results show that it has high accuracy in predicting seed cotton MR. The study provides technical reference for the accurate and rapid measurement of seed cotton MR during harvesting operations.
Article
Polymer Science
Felipe Vicente de Paula Kodaira, Bruno Henrique Silva Leal, Thayna Fernandes Tavares, Antje Quade, Luis Rogerio de Oliveira Hein, William Chiappim, Konstantin Georgiev Kostov
Summary: A conical-shaped atmospheric pressure plasma jet (CS-APPJ) was developed to overcome the small treatment area limitation of APPJs. Polypropylene samples were treated by CS-APPJ and characterized by SEM, contact angle, FTIR, and XPS. The treatment was observed to occur on both the face directly in contact with the plasma and the opposite face, resulting in different chemical compositions on each side.
Article
Chemistry, Physical
Suresh Gosavi, Rena Tabei, Nitish Roy, Sanjay S. Latthe, Yuvaraj M. Hunge, Norihiro Suzuki, Takeshi Kondo, Makoto Yuasa, Katsuya Teshima, Akira Fujishima, Chiaki Terashima
Summary: Titanium dioxide (TiO2) thin films were deposited on glass and silicon substrates using the atmospheric pressure plasma jet (APPJ) technique. Characterization techniques such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and field emission scanning electron microscopy were used to study the structure and morphology of the TiO2 thin films, showing strong UV absorption and efficient photocatalytic decomposition performance.
Article
Physics, Applied
J. Liu, L. Nie, Y. Xian, X. Lu
Summary: The study found that adding a small amount of nitrogen or oxygen to argon can make the plasma channel smooth, while the rotational frequency of the electrode does not affect the appearance of the plasma channel. Optical emission spectra show that adding O-2/N-2 reduces the emission intensity of transitions from excited argon levels to metastable states, leading to a transition of the discharge channel's nature.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Jia-Shiuan Tsai, Jian-Zhang Chen
Summary: This study investigated the impact of oxygen impurity on the inlet gas in a nitrogen atmospheric pressure plasma jet (APPJ). A numerical model was developed to simulate the nitrogen APPJ considering fluid dynamics, heat transfer, mass transfer, diffusion, and chemical reactions. Experimental tests were conducted to verify the plasma temperature characteristics on the treated surface. The findings revealed that the plasma temperature decreased with increasing oxygen impurity, affecting the excited and neutral species composition.
APPLIED SCIENCES-BASEL
(2023)
Article
Physics, Fluids & Plasmas
Xiaoman Zhang, Xiaoping Ma, Maoyang LI, Peiyu Ji, Tianyuan Huang, Lanjian Zhuge, Xuemei Wu
Summary: This study investigates the antibacterial activity of cotton containing silver nanocapsules prepared by atmospheric pressure plasma (APP) deposition. The nanocapsules consist of a shell and a silver nanoparticle (AgNP) core, which is responsible for the antibacterial activity while the shell suppresses the potential toxicity of AgNPs. The surface morphology and elements of the samples were analyzed using scanning electron microscopy (SEM), energy dispersive x-ray (EDX), and x-ray photoelectron spectroscopy (XPS). The results show that the skin of the cotton fibers gradually falls off after 3 minutes of APP treatment, and the Ag content rises to 1.6% after 10 minutes of APP deposition. In addition, antimicrobial activity tests demonstrate that the reduction rates of Escherichia coli and Staphylococcus aureus can reach 100% after 10 minutes of treatment, indicating excellent antibacterial activity. Furthermore, the UV absorption properties of the cotton are also improved, providing broader application prospects for antibacterial cotton.
PLASMA SCIENCE & TECHNOLOGY
(2023)
Article
Physics, Applied
K. Gazeli, M. Hadjicharalambous, Eleftherios Ioannou, O. Gazeli, C. Lazarou, C. Anastassiou, P. Svarnas, V. Vavourakis, G. E. Georghiou
Summary: We developed an in silico model to simulate the response of B16F10 melanoma cells to a helium atmospheric pressure plasma jet (APPJ) and doxorubicin drug (DOX). The simulation results showed that increasing plasma duration and DOX concentration resulted in increased cytotoxicity and a higher apoptosis probability compared to mitosis probability. Furthermore, combining plasma treatment and drug application enhanced cell cytotoxicity. This in silico model is valuable in the field of plasma medicine for understanding the response of different cancers to APPJ and cancer drugs.
APPLIED PHYSICS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Nazli Turan, Mortaza Saeidi-Javash, Jiahao Chen, Minxiang Zeng, Yanliang Zhang, David B. Go
Summary: The passage discusses the application of atmospheric pressure nonthermal plasmas in sintering printed films, demonstrating the surface modifications achieved through nonthermal plasmas under ambient conditions. These results offer a new direction for future electronic device manufacturing, showcasing the potential of utilizing nonthermal plasmas for additive manufacturing on flexible and low-melting-point materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Multidisciplinary
Keita Shimada, Ryuki Morita, Masayoshi Mizutani, Tsunemoto Kuriyagawa
Summary: Powder jet deposition (PJD) is a spray coating method that can be done under atmospheric pressure and room temperature. By applying an atmospheric-pressure plasma jet (APPJ) assistance, the deposition rate of PJD can be increased.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2023)
Article
Materials Science, Paper & Wood
Sven Gerullis, Andreas Pfuch, Oliver Beier, Bjoern-Sten-Mark Kretzschmar, Mario Beyer, Steffen Fischer
Summary: Atmospheric plasma technology offers an interesting and sustainable approach for treating various surfaces. The plasma-substrate interactions can lead to molecular, microscopic, and macroscopic modifications of the substrate surface. This study focused on investigating the molecular changes of cellulose using spectroscopic methods. The results confirmed the formation of oxygen-containing functionalities and the reduction of OH groups on cellulose after plasma treatment.
Article
Physics, Applied
O. Polonskyi, T. Hartig, J. R. Uzarski, M. J. Gordon
Summary: Dielectric insulators with patterned topographic relief are utilized to spatially define filamentary microdischarges in atmospheric pressure DBD plasmas, enabling localized surface treatment such as etching, micro-texturing, and wettability modification. This approach allows for the generation of arbitrary discharge patterns, anisotropic etching of materials, and spatial patterning of surface properties without the need for lithographic masks. The method provides a user-defined way to pattern DBD streamers for subsequent surface modification, material deposition, or etching.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Yu Cheng, Leilei Jia, Chang Sun, Yunwen Liu, Hui-E Liang
Summary: By using atmospheric pressure plasma treatment, two antimicrobial agents were successfully grafted onto cotton fabrics, and their antimicrobial efficiency was tested, showing sound effects.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Physics, Applied
Li Wu, Xianyu Zhang, Tao Liu, Wencong Zhang, Junwu Tao, Fei Cheng
Summary: This Letter presents an atmospheric pressure low power microwave-induced air plasma source operating at 2.45 GHz. The device can self-ignite air and generate plasma with only 50 W microwave input power, without any additional trigger. Its sustaining power is as low as 10 W, and the gas temperature of plasma tail flame is about 32 degrees C measured by a fiber optic thermometer. Spectroscopic measurements revealed the presence of strong OH(A(2)S(+)? X-2?) bands at 306-310 nm and oxygen atomic lines O-I (3p5P? 3s5S) at 777.1 nm and O-I (3p3P?3s3S) at 844.6 nm. Furthermore, NO- ?(A(2)S(+)?X-2?(r)) from 200 to 300 nm was also detected in the air plasma jet. This portable plasma apparatus shows potential for air plasma applications in the biomedical fields.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Fluids & Plasmas
Yutian Yu, Li Wu, Qiang Chen, Naoki Shinohara, Kama Huang
Summary: This paper presents a numerical model to simulate the motion trajectory of an atmospheric pressure plasma jet under an external nonuniform electric field. The model treats the plasma jet as equivalent particles based on its dielectric properties and motion characteristics. The model demonstrates short calculation times and excellent agreement with experimental observations, providing an effective and efficient method for predicting and controlling plasma jet motion trajectory.
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)