Article
Chemistry, Physical
Anca Constantina Parau, Gabriela Andreea Juravlea, Joanna Raczkowska, Catalin Vitelaru, Mihaela Dinu, Kamil Awsiuk, Diana Maria Vranceanu, Elena Ungureanu, Cosmin Mihai Cotrut, Alina Vladescu
Summary: ZrCu-based thin films were obtained using the PVD-cathodic arc technique to improve the surface properties of 316L stainless steel and Ti6Al4V implant materials. These films, combining superior mechanical properties with amorphous metallic glasses' corrosion resistance, could be potential candidates for medical applications. Ca, Mo, Mg, Si, and Sr were added to the ZrCu structure, and the resulting ternary systems were investigated in detail. Potentiodynamic polarization and electrochemical impedance spectroscopy were employed to assess corrosion kinetics and behavior of the films, while scanning electron microscopy and TOF-SIMS analysis were used for characterization.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Cristina Zubizarreta, Oihane Hernandez, Ivan Fernandez-Martinez, Inigo Ciarsolo, Javier Diez-Sierra, Lluis Carreras, Javier Barriga
Summary: Die wear in forming high strength steels (HSS) operations is a major obstacle for automation industries, but advanced PVD coatings with high thicknesses can provide an optimal solution. The bias voltage plays a key role in minimizing residual stresses and ensuring optimal mechanical properties of the coating. Different configurations have been studied, and thick coatings with optimal adhesion have been deposited under bipolar bias voltage conditions, showing promising performance in real deep drawing production processes.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Sanmitra Barman, Swarnim Neema, Anchal Rana, Arun Singh Patel, Anirban Chakraborti, Abhimanyu Singh Rana
Summary: In this paper, the growth of carbon films and nitrogen-doped carbon films on different substrates was investigated. It was found that the substrate properties have a significant impact on the carbon hybridization type, and nitrogen doping can increase the carbon hybridization type uniformly.
MATERIALS TRANSACTIONS
(2022)
Article
Materials Science, Ceramics
Ke-Jie Feng, Chao-Qian Guo, Song-Sheng Lin, Zhi-Qiang Fu, Qian Shi, Yi-Fan Su, Wei Wang, Ming-Jiang Dai
Summary: ta-C thin films were deposited using vacuum cathodic arc technology with an unbalanced external electromagnetic field. The study focused on the effects of magnetic field intensity on the structure and properties of ta-C films. Results showed that the proper magnetic field intensity led to the highest hardness and sp3 content in the films.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Maximilian Steinhorst, Maurizio Giorgio, Teja Roch, Christoph Leyens
Summary: Carbon-based coatings composed of a chromium interlayer and a carbon top layer were deposited on stainless steel substrates. The bias voltage during carbon deposition was varied to investigate its influence on the structural and electrical properties. Raman spectroscopy, transmission electron microscopy, and electron energy loss spectroscopy were used for structural analysis. Potentiodynamic polarization tests were conducted to evaluate the corrosion resistance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Coatings & Films
Fujia Liu, Hongshuai Cao, Hao Li, Jiao Yang, Nie Zhao, Fugang Qi, Xiaoping Ouyang
Summary: In this study, CrAlC coating was prepared using filtered cathodic vacuum arc (FCVA) technology, and the relationship between the phase structure evolution and the properties was systematically investigated. The results showed that annealing had a significant impact on the structure, hardness, and corrosion resistance of the coating. The coating exhibited the highest hardness and corrosion resistance at an annealing temperature of 800°C.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Sijie Xie, Wouter Monnens, Kai Wan, Wei Zhang, Wei Guo, MaoWen Xu, Ivo F. J. Vankelecom, Xuan Zhang, Jan Fransaer
Summary: This study introduces the use of hydrogen peroxide assisted cathodic deposition (HPACD) to prepare metal-organic framework (MOF) films, overcoming the limitations of metal co-deposition and narrow range of possible metal nodes. Various pure MOF films were successfully prepared, and effective rejection of Rose Bengal from water was achieved with flexible Cu-BTC coated paper membranes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Anca Constantina Parau, Mihaela Dinu, Catalin Vitelaru, Cosmin Mihai Cotrut, Diana Maria Vranceanu, Alina Vladescu (Dragomir)
Summary: The aim of this study is to develop quaternary ZrCuCa-based thin films and evaluate their potential in improving the surface properties of 316L stainless steel and Ti6Al4V materials through electrochemical and bioactivity tests. The results showed that these coatings significantly improved the behavior of the substrates under simulated conditions, highlighting their potential as biomaterials.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Pei-En Lee, Yu-Kuan Tu, Ming-Hung Tsai, Che-Wei Tsai, Jien-Wei Yeh
Summary: This study investigated the effects of magnetic field, working pressure, inner-wall structure, and cross-section area of the magnetic-filter duct on the distribution of macroparticles (MPs) using cathodic arc deposition with a high-entropy alloy target. It was found that the density of MPs increased with the density of the plasma beam and could be reduced by inserting an Al foil disk with a round opening at the bend position of the duct.
Article
Materials Science, Multidisciplinary
Lilyana Kolaklieva, Roumen Kakanakov, Daniela Kovacheva, Vasiliy Chitanov, Tetyana Cholakova, Christo Bahchedjiev, Stefan Kolchev
Summary: The CrAlSiN-AlSiN coating with periodically modulated structure maintains superhardness and high toughness during thermal treatment in the range of 700-800°C, making it suitable for high thermal applications.
Article
Materials Science, Multidisciplinary
Rong Tu, Mai Yang, Yang Yuan, Rui Min, Qizhong Li, Meijun Yang, Baifeng Ji, Song Zhang
Summary: TaN/(Ta/Ti)/TiN multilayer films prepared via multi-arc ion plating at various target to substrate distances showed excellent hardness and toughness, indicating potential application as protective coatings.
Article
Materials Science, Multidisciplinary
J. Restrepo, G. Mondragon-Rodriguez, J. M. Gonzalez-Carmona, J. M. Alvarado-Orozco, O. Garcia-Zarco, S. E. Rodil
Summary: The addition of V does not affect the hardness of TiSiN coatings but can reduce the coefficient of friction in dry sliding tests and change the wear mechanism, potentially leading to a lower wear rate.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Chemistry, Physical
S. N. Chen, W. Q. Yan, Y. M. Zhao, Q. Li, L. Chen, X. Ouyang, Q. S. Hua, X. Y. Wu, Y. F. Zhang, B. Liao, X. P. Ouyang
Summary: AlCrNiTiV high-entropy alloy amorphous films were synthesized using the Co-FCVAD technique, and their microstructure was found to be closely related to the negative bias voltage. The films exhibited a dense and smooth amorphous structure at lower bias voltages, and a dual-phase structure consisting of amorphous and nanocrystalline phases at higher bias voltages. These films showed significantly enhanced hardness and resistance against corrosion, as well as excellent flexibility, self-supporting, and thermal stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
Ali M. Ali, Mohamed Egiza, Koki Murasawa, Hiroaki Sugita, Tanja Deckert-Gaudig, Volker Deckert, Tsuyoshi Yoshitake
Summary: This study investigates the low-temperature fabrication of nanodiamond films on untreated silicon substrates using CAPD technology. It was found that by fabricating intermediate layers at elevated temperatures, the adhesion strength of nanodiamond films on silicon substrates could be improved, promoting atomic interdiffusion and relieving residual stress in the films.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Jayaraman Senthilselvan, Rajeev R. Pillai, Ramasubramanian Kannan, B. Baskar, Krishna Valleti, J. Manonmani
Summary: In this study, nanocrystalline TiN films were deposited on FTO coated glass substrates by cathodic arc deposition for the first time. The crystalline phase, grain size, hardness, electrical resistivity, and optical properties of the TiN films were investigated. The results showed that the nanocrystalline TiN films had excellent mechanical and electrical properties, making them suitable for use as counter electrodes in dye-sensitized solar cells.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Ping Zhang, Xiujie Yue, Yeran Gao, Zhenyong Lin, Shunxiang Wang, Songting Zhang
Summary: This paper investigates the strengthening mechanism of highspeed cutting and solid particle-entrained waterjet peening (HSC-WJP) composite reinforcement on 7075-T6 aluminum alloy. The research results show that composite reinforcement can improve surface quality, reduce surface pits and roughness, and decrease the size of precipitation-free zone (PFZ) at grain boundaries.
Article
Materials Science, Multidisciplinary
Sangyoon Lee, Hwi Yoon, Sanghun Lee, Seung-min Chung, Hyungjun Kim
Summary: The wettability of metal oxides, particularly HfO2 thin films deposited via atomic layer deposition, and its correlation with surface free energy have been studied. It was found that surface oxygen species significantly affect the intrinsic hydrophilicity of HfO2 thin films, and the crystalline orientations also evolve with film thickness.
Article
Materials Science, Multidisciplinary
Changdong Yin, Yiwen Wu, Zhou Xu, Dongdong Ye, Jun Yao, Jianjun Chen, Qiang Liu, Xin Ge, Meiling Ding
Summary: This study proposed a new strategy to indirectly estimate the hydrogen diffusivity of metallic materials under tensile stress by combining the electrochemical hydrogen permeation test (EHPT), the hydrogen diffusion descriptive equation based on Fick's law, and hydrogen pre-charged tensile test. The results showed that the hydrogen permeation curve obtained was highly approximate to the theoretical trend. The hydrogen embrittlement (HE) susceptibility of the specimens increased with increasing stress.
Article
Materials Science, Multidisciplinary
Huan Luo, Wei-yi Wang, Xin Yu, Xian-jun Lei, Lang Liu, Guo-zheng Zha, Wen-long Jiang, Bin Yang, Bao-qiang Xu
Summary: Separating selenium and tellurium is a general challenge in material and non-ferrous metallurgical industries. This paper proposes a novel method that achieved efficient separation of selenium and tellurium using gas-liquid equilibrium phase diagram and valence regulation-vacuum gasification technique.
Article
Materials Science, Multidisciplinary
Fan Zhang, Rong Xin Wang, Aiqin Tian, Fangzhi Li, Jianping Liu, Hui Yang
Summary: Deposition of Pd/Pt/Au three-layer films on p-GaN under high and ultra-high vacuum conditions was studied to investigate the electrical contact properties. Linear I-V curves were observed in samples deposited under ultra-high vacuum conditions, while nonlinear I-V characteristics were obtained in samples deposited under high vacuum conditions. The study also found that the samples deposited under high vacuum conditions had higher amounts of oxygen and Pd oxide. The oxide layer had an additional influence on the electrical characteristics of the Pd/Pt/Au/p-GaN contact.
Article
Materials Science, Multidisciplinary
Hongli Liu, Chengzhe Liu, Ying Sui, Zhongxian Liu, Tiangang Zhang, Zhiqiang Zhang, Shuang Sun, Jianwei Jia
Summary: This study utilized polysiloxane and hafnium carbide to produce Si-N-C-O-Hf hybridized ceramic fibers, and obtained ceramic fibers with hemispherical particles on the surface through electrostatic spinning and pyrolysis. The ceramic fibers exhibited excellent thermal stability, oxidation resistance, and high temperature insulation.
Article
Materials Science, Multidisciplinary
M. Abaker, Nazar Elamin Ahmed, A. Saad, H. F. Khalil, E. M. M. Ibrahim, A. M. Adam
Summary: This paper systematically studied the internal structure and thermoelectric properties of In1-xGaxSb alloys prepared by melting synthesis at 1123 K. The results showed that doping with Ga in the In sites led to a significant increase in the Seebeck coefficient and power factor, while reducing the thermal conductivity. The maximum dimensionless figure of merit was observed at 403 K.
Article
Materials Science, Multidisciplinary
Fucheng Yu, Jinlong Ren, Jielin Zhang, Haiyang Chen, Xin Tian, Chenchen Feng, Cuixia Li, Jianbin Zhang, Xianxi Tang, Xiaogang Hou
Summary: An environmentally friendly ZnO@BiVO4 composite photocatalyst was prepared using in-situ self-assembly and solvothermal methods, demonstrating good photocatalytic performance. The mass ratio of BiVO4 and NCZ was found to influence the photocatalytic performance of the composite.
Article
Materials Science, Multidisciplinary
Yaoming Shao, Pingping Zheng, Tianhao Dong, Lianghuan Wei, Haifei Wu, Jianxiao Si
Summary: In this paper, Mg3Bi2 films were prepared on glass substrate using magnetron sputtering, and the phase composition and thermoelectric properties of the films were investigated with different atomic ratios. The films displayed a metastable cubic phase and high conductivity when the atomic ratio exceeded stoichiometry.
Article
Materials Science, Multidisciplinary
I. V. Uimanov, D. L. Shmelev, S. A. Barengolts
Summary: A two-dimensional axisymmetric model has been developed to study the prebreakdown processes in a cathode microprotrusion under an external electric field. The simulation results show that electrohydrodynamic instability leads to the formation of a nanometer-sized conical protrusion on the microprotrusion tip, significantly accelerating the heating process.
Article
Materials Science, Multidisciplinary
Weilun Zhang, Di Yang, Feng Gong, Yongjun Chen, Tian Chen, Zhiwen Xie, Sirui Yang
Summary: A novel Pt doping method was designed to improve the thermal stability of CrWN coating. The doping of Pt atoms effectively blocks the coherent growth of the grains and creates a significant mixing effect, resulting in a smooth surface with uniform element distribution.
Article
Materials Science, Multidisciplinary
Xiaoye Wang, Xiaoguang Yang, Wenna Du, Tao Yang
Summary: In this study, the effects of multiple growth parameters on self-catalyzed growth of InAs/GaSb axial heterostructured nanowires on Si substrate by MOCVD were investigated. It was found that the growth temperature and switching time have significant influences on the nanowire growth.
Article
Materials Science, Multidisciplinary
Weizhong Cui, Yan Zhao, Can Cui, Xing Liu, Beili Pang, Jianguang Feng, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: This study introduces Co2+ cations into Cs2AgBiBr6 film to improve its quality, grain size, and conductivity, resulting in enhanced solar cell efficiency.
Article
Materials Science, Multidisciplinary
Jian Wang, Ke Yang, Xianming Cheng, Yalin Lu, Ganghui Wu, Yang Zhang, Yun Kan
Summary: The corrosion behavior and microstructural evolution of Sc microalloyed Al-3.2Cu-1.5Li alloys were investigated in detail. The microstructural results showed higher levels of dislocations density in the Sc microalloyed sample, which resulted in significantly refined grains and T1 precipitates. Microalloying with Sc changed the corrosion mode of the alloy and localized corrosion was found to occur preferentially at the subgrain within unrecrystallized grains with high grain stored energy.
Article
Materials Science, Multidisciplinary
Weifeng Liu, Na Liu, Kaiqiang Song, Meiqin Zeng, Zhongchen Lu
Summary: Monoclinic WO3 prepared through plasma milling exhibits higher photocatalytic activity due to its higher surface area, increased oxygen vacancies, and defects.