Article
Materials Science, Coatings & Films
Guangxue Zhou, Langping Wang, Xiaofeng Wang, Yonghao Yu
Summary: This work investigated the influences of mirror-field and closed-field magnetic field configurations on plasma parameters and ion flux dynamics in dual magnetron reactive high power impulse magnetron sputtering with Al targets in Ar/O-2 mixture. The study found that the plasma compositions were similar in both configurations, but the closed-field discharge had higher electron density and lower plasma potential compared to the mirror-field discharge. The ion energy distribution functions showed different peak energies and ion fluxes between the two configurations, with the mirror-field discharge peaking at the end of the pulse and the closed-field configuration reaching peak fluxes 10 µs after pulse termination.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
S. Kagerer, L. Zauner, T. Wojcik, S. Kolozsvari, T. Kozak, J. Capek, P. Zeman, H. Riedl, P. H. Mayrhofer
Summary: This study focuses on the synthesis and stability of Al2O3 coatings. By adding a small amount of tungsten to the Al target, the oxygen partial pressure can be increased while maintaining a stable deposition process, resulting in dense and nano-crystalline coatings. Controlled ion attraction can be achieved by synchronizing the bias pulse to the discharge impulse under specific conditions.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Nyasha J. Suliali, William E. Goosen, Arno Janse van Vuuren, Ezra J. Olivier, Babak Bakhit, Hans Hogberg, Vanya Darakchieva, Johannes R. Botha
Summary: This work discusses the influence of process parameters on the surface properties of Ti coatings in an industrial High-Power Impulse Magnetron Sputtering (HiPIMS) system. The results show that the surface roughness decreases with increasing HiPIMS target power, while the crystal grain orientation and length also exhibit noticeable changes.
Article
Materials Science, Multidisciplinary
A. Q. Li, N. Lin, L. W. Xu, W. J. Zhang, X. C. Zhang, Z. Y. Wang, C. Ma
Summary: The effects of Al doping on the oxidation kinetics and oxidation mechanism of Ti(C,N)-based cermets were systematically investigated. Al derived from decomposed AlN powders promoted the precipitation of (Ni,Co)3Al nanoparticles in the binder phase, and the presence of (Ni,Co)3Al nanoparticles improved oxidation resistance by forming a (Ni,Co)(Ti,Al)O3 layer.
Article
Chemistry, Physical
Yeliz Unutulmazsoy, Claudia Cancellieri, Luchan Lin, Lars P. H. Jeurgens
Summary: This study investigated the reduction kinetics and mechanisms of CuO and Cu2O films in hydrogen, and found that these films could be used in various applications such as catalysts, batteries, water treatment and biomedical applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
J. Buchinger, A. Wagner, Z. Chen, Z. L. Zhang, D. Holec, P. H. Mayrhofer, M. Bartosik
Summary: The use of superlattice architectures can enhance the hardness and fracture toughness of ceramic thin films. The mechanisms behind the toughness-enhancing effect are still partially unexplored, but by designing superlattices with identical elastic moduli but different lattice parameters, an enhanced fracture toughness was observed. The understanding of the coherency strains in the nanolayers within the superlattice structure is crucial for the observed toughness enhancement.
Article
Materials Science, Multidisciplinary
A. V. Pshyk, A. Vasylenko, B. Bakhit, L. Hultman, P. Schweizer, T. E. J. Edwards, J. Michler, G. Greczynski
Summary: This study systematically investigates the effects of alloying equimolar high-entropy nitride thin films with aluminum. The results demonstrate that the aluminum concentration in the films determines their hardness, yield strength, toughness, and ability to deform plastically.
MATERIALS & DESIGN
(2022)
Article
Physics, Fluids & Plasmas
Wolfgang Huber, Thomas Houlahan, Zachary Jeckell, David Barlaz, Ian Haehnlein, Brian Jurczyk, David N. Ruzic
Summary: This study investigates the time-dependent plasma properties of a high-power impulse magnetron sputtering plasma, including the effect of a positive 'kick' pulse on the sputtering target. The results show that the positive pulse expels plasma and increases the plasma potential across the chamber. The study also measures the time-dependent electron energy distribution function, potential commute time, and plasma diffusion properties.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Zachary Jeckell, David E. Barlaz, Thomas Houlahan, Wolfgang Huber, Ian Haehnlein, Brian Jurczyk, David N. Ruzic
Summary: This study reports the effect of variations in pulse conditions on the ion energy distribution function (IEDF) of plasma generated during high-power impulse magnetron sputtering (HiPIMS) discharge. The plasma is found to result from the expansion of largely neutral gas species between the magnetic trap of the target and the workpiece. The plasma potential rises in a similar time scale with the emergence of a narrow peak in the IEDF close to the applied bias, which remains narrow regardless of pulse length and shows slight pressure dependence. However, an exception is found where the IEDF contains a broad high energy tail at the beginning of the pulse due to ion acceleration beyond the magnetic trap.
Article
Optics
Alberto Ghezzi, Armin J. M. Lenz, Fernando Soldevila, Enrique Tajahuerce, Vito Vurro, Andrea Bassi, Gianluca Valentini, Andrea Farina, Cosimo D'Andrea
Summary: In this work, we propose a time-resolved multispectral fluorescence microscopy system based on the Single-Pixel Camera (SPC) scheme, which achieves high resolution and short measurement time using Compressive Sensing (CS) technology. Data Fusion (DF) with a high-resolution camera is used to address the low spatial resolution issue typical of SPC. By integrating hardware and algorithms, this system reduces the number of measurements while preserving the information content, allowing for a zoom feature without moving the optical system. The system is characterized in terms of spatial, spectral, and temporal properties, and is validated on a cellular sample.
Article
Materials Science, Coatings & Films
Chao-Qian Guo, Hai-Qing Li, Ya-Li Peng, Ming -Jiang Dai, Song-Sheng Lin, Qian Shi, Chun-Bei Wei
Summary: Hydrogen-free Al-DLC films were prepared using HiPIMS technology under different bias voltages, and the influences of substrate bias voltage on the film properties were studied. The results showed that bias voltage reduced film roughness, increased film disorder and the content of sp(3) bonds. Furthermore, residual stress and film hardness were also affected by the substrate bias voltage.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Carmen Mita, Nicoleta Cornei, Mariana Frenti, Georgiana Bulai, Marius Dobromir, Vasile Tiron, Aleksandr S. Doroshkevich, Diana Mardare
Summary: This study investigates the photocatalytic activities of undoped and nitrogen-doped ZrO2 thin films in the decomposition of the toxic organic compound Rhodamine B. The effects of direct and indirect irradiation on the films' structure, surface morphology, elemental composition, optical band gap, hydrophilicity, and photocatalytic activity were analyzed using various methods. N-doped ZrO2 films showed improved solar light absorption, enhanced hydrophilicity, and higher photocatalytic activity for Rhodamine B decomposition. Surprisingly, the addition of hydrogen peroxide acted as an inhibitor rather than an accelerator for the photocatalytic reactions.
Article
Materials Science, Multidisciplinary
Saksorn Limwichean, Pitak Eiamchai, Chatchai Ponchio, Nat Kasayapanand, Mati Horprathum
Summary: The study compared the WO3 thin films deposited by DCMS and HiPIMS techniques, with the latter showing better film structures and stability after annealing. The WO3 thin film prepared by HiPIMS displayed higher photocurrent and stability due to its preferred crystalline structure, indicating the potential of HiPIMS deposition technique for semiconductor films in energy and environmental applications.
Article
Engineering, Electrical & Electronic
Kazuki Ueda, Sang-Hyo Kweon, Hirotaka Hida, Yoshiharu Mukouyama, Isaku Kanno
Summary: Transparent piezoelectric microdevices were realized by depositing Pb(Zr,Ti)O3 (PZT) thin films on fluorine-doped tin oxide (FTO)-coated glass substrates using radio frequency (RF) magnetron sputtering and sol-gel methods. The transparent PZT thin films exhibited polycrystalline perovskite structure with good piezoelectric properties, showing a clear converse piezoelectric effect with a coefficient ranging between 2.8 and 5.0 C/m2.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Materials Science, Multidisciplinary
Chun Hu, Jie Zhang, Li Chen, Yu X. Xu, Yi Kong, Jian W. Du, Paul H. Mayrhofer
Summary: This study investigates the thermal decomposition process and mechanical properties of supersaturated (Ti,Al)N materials with TiN multilayers. Experimental results show that (Ti,Al)N decomposes into layered structures of Al-rich and Ti-rich regions at high temperatures. Computational calculations reveal that the layered arrangement provides higher resistance against dislocation glide and benefits the coating integrity.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Ceramics
A. Farhadizadeh, J. Vlcek, J. Houska, S. Haviar, R. Cerstvy, M. Cervena, P. Zeman, M. Matas
Summary: We investigate the influence of nitrogen content on the functional properties, thermal stability, and oxidation resistance of Hf-Y-Si-B-C-N coatings. Ab-initio simulations are employed to understand the relationship between the experimentally obtained properties and the atomic and electronic structures of the coatings. The optimal nitrogen content in the plasma and coatings is identified, which surpasses the performance of previous high-temperature material Hf6Y2-Si29B12C2N45. These findings represent a step forward in achieving enhanced thermal stability and oxidation resistance while maintaining multiple functional properties.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
A. Bahr, S. Richter, R. Hahn, T. Wojcik, M. Podsednik, A. Limbeck, J. Ramm, O. Hunold, S. Kolozsvari, H. Riedl
Summary: Transition-metal disilicide (TMSi2) thin films were deposited using different bias potentials, and their phase formation, microstructure, and mechanical properties were investigated. The MoSix films exhibited outstanding oxidation resistance and interfacial stability, while TaSix films suffered accelerated oxidation and NbSix films showed slow oxidation kinetics. Additionally, the TaSi1.7 coating demonstrated the highest fracture toughness.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Philipp G. Gruetzmacher, Michele Cutini, Edoardo Marquis, Manel Rodriguez Ripoll, Helmut Riedl, Philip Kutrowatz, Stefan Bug, Chia-Jui Hsu, Johannes Bernardi, Carsten Gachot, Ali Erdemir, Maria Clelia Righi
Summary: This study describes an innovative method of converting selenium nanopowders into 2D selenides with lubricating properties by sprinkling them on metallic surfaces coated with molybdenum and tungsten thin films. Advanced material characterization confirms the formation of a thin film containing selenides, reducing the coefficient of friction to below 0.1, comparable to the use of fully formulated oils.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
J. Houska, P. Zeman
Summary: The paper explores the role of Al in thin film metallic glasses based on Cu and Zr through a combination of molecular-dynamics simulations and magnetron sputtering. It quantifies the effects of Al incorporation on the properties of these metallic glasses and identifies key building blocks in their structure. The results provide important insights for understanding and optimizing the compositions and preparations of this class of metallic glasses for various technological applications.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Barbara Schmid, Nikola Koutna, Rainer Hahn, Tomasz Wojcik, Peter Polcik, Paul Heinz Mayrhofer
Summary: Transition metal carbides are high-temperature ceramics with high thermal and mechanical stability and melting points above 4000 degrees C. However, their high brittleness is a significant limitation. Inspired by nanolayered superlattice architecture, TaC/HfC and TiC/TaC superlattice films were developed to enhance hardness and toughness. The superlattice structure of TiC/TaC was pronounced, while TaC/HfC showed more of a solid solution characteristic. The TiC/TaC superlattices have higher hardness and better fracture behavior than TaC/HfC coatings, as well as monolithic TiC, TaC, and HfC coatings.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
P. H. Mayrhofer, S. Kagerer, P. Polcik, A. Kirnbauer
Summary: Alloying (Ti,Al)N with Ta, CeSi2 or LaB6 improves hardness and thermal stability. When alloyed together, their different mechanisms result in cumulative improvement, especially in oxidation resistance. CeSi2 and CeSi2 + LaB6 alloys exhibit single-phase fcc structures with good hardness even after vacuum annealing.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Andreas Kretschmer, Fabian Bohrn, Herbert Hutter, Eduardo Pitthan, Tuan Thien Tran, Daniel Primetzhofer, Paul Heinz Mayrhofer
Summary: The barrier performance of a nitride and three oxynitrides of the system Al-Cr-Nb-Ta-Ti between Cu and Si was tested. The coatings showed intact barrier function up to 800 degrees C and complete failure at 900 degrees C.
MATERIALS CHARACTERIZATION
(2023)
Article
Nanoscience & Nanotechnology
M. Freisinger, L. Zauner, R. Hahn, H. Riedl, P. H. Mayrhofer
Summary: A complex and untraceable mechanical and thermal loading situation in rolling-sliding contacts can lead to the formation of white etching layers (WELs), which are critical crack initiation sites. In this study, a WEL was prepared on a decommissioned rail wheel by laser surface treatments, and its microstructural characteristics and micro-mechanical properties were investigated. The martensitic region in the WEL was significantly harder than the transition zone and the deformed ferritic-pearlitic base material. The in-situ V-notched micro-cantilever bending experiments showed crack initiation and propagation, along with plastic behavior, in the martensitic region.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Coatings & Films
A. Bahr, T. Glechner, A. Grimmer, T. Wojcik, P. Kutrowatz, M. Podsednik, A. Limbeck, M. Heller, J. Ramm, O. Hunold, S. Kolozsvari, P. Polcik, E. Ntemou, D. Primetzhofer, P. Felfer, H. Riedl
Summary: The Si-alloying of transition metal diborides is a promising strategy to improve their limited oxidation resistance in high-temperature environments. In this study, the oxidation resistance of ternary and quaternary Cr-(Mo)-Si-B2-z coatings is investigated. The Si-alloyed coatings provide oxidation resistance up to 1200 degrees C, forming highly protective double-layered scales consisting of SiO2 with a Cr2O3 layer on top. The quaternary Cr0.31Mo0.07Si0.15B0.47 coating exhibited superior oxidation resistance with lower porosity and void formation compared to the ternary Cr0.37Si0.16B0.47.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
C. Fuger, R. Hahn, A. Hirle, T. Wojcik, P. Kutrowatz, F. Bohrn, O. Hunold, P. Polcik, H. Riedl
Summary: Structural imperfections, such as nano-columnar tissue phases, are an important feature in protective thin films. In PVD transition metal diborides, excess Boron results in nm-sized B-rich precipitations between nano-crystalline domains. This study focuses on super-stoichiometric TiB2 + z thin films, varying the stoichiometry from TiB2.04 to TiB4.42 (B: 67-82 at.%). The fraction and thickness of the tissue phase are mainly determined by the B content and deposition conditions. A decrease in tissue phase width from approximately 3-1 nm leads to an increase in critical stress intensity factor K-IC of approximately 40%.
MATERIALS RESEARCH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Jian Jiang, Tao Sun, Guoqiang Huang, Xiaomei Feng, Yifu Shen, Paul Heinz Mayrhofer
Summary: Al1.8CrCuFeNi2/WC composite coatings were prepared on Ti-6Al-4 V alloy by laser cladding of a high entropy alloy (HEA) powder with the addition of WC powder. The addition of WC led to the formation of various carbides, resulting in improved hardness and wear resistance of the composite coatings.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2023)
Article
Materials Science, Coatings & Films
M. Farahani, T. Kozak, A. D. Pajdarova, A. Bahr, H. Riedl, P. Zeman
Summary: This study investigates the transport processes of ions and atoms in high-power impulse magnetron sputtering discharges and the changes in film stoichiometry. Mass spectrometry and optical emission spectroscopy were used to analyze the ion and atom densities at different distances from the target. It was found that the film composition changes from C-rich to Nb-rich with increasing pulse power density.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Nanoscience & Nanotechnology
R. Hahn, A. A. Tymoszuk, T. Wojcik, E. Ntemou, O. Hunold, P. Polcik, S. Kolozsvari, D. Primetzhofer, P. H. Mayrhofer, H. Riedl
Summary: Superlattice structures can enhance the hardness and fracture toughness of ceramic-like coatings. In this study, TiB2/WB2 and TiB2/ZrB2 superlattices were deposited to investigate their effects on hardness (H) and fracture toughness (KIC). The TiB2/WB2 system exhibited a distinct hardness peak, while the TiB2/ZrB2 system showed an increase in fracture toughness due to differences in lattice spacing.
SCRIPTA MATERIALIA
(2023)
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)
