Article
Materials Science, Ceramics
Rong Tu, Zhen Liu, Qingfang Xu, Song Zhang, Qizhong Li, Xian Zhang, Marina L. Kosinova, Takashi Goto
Summary: Silicon nitride films were fabricated using halide laser chemical vapor deposition (LCVD) for surface protection of electronic devices. The study investigated the effects of deposition parameters on the crystallinity, microstructure, deposition rate, Vickers microhardness, nano-hardness, and electrical resistivity. The highest deposition rate was achieved at a temperature of 1573 K and pressure of 10 kPa. The hardness of the films increased with temperature and the electrical resistivity decreased.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Review
Chemistry, Multidisciplinary
Jingyuan Shan, Jingyu Sun, Zhongfan Liu
Summary: Growing graphene on sapphire substrates using CVD allows for fewer grain boundaries, larger grain sizes, and transfer-free properties. Sapphire has emerged as an ideal substrate for graphene growth due to its low cost, good mechanical strength, and stability under CVD conditions. Applications of graphene/sapphire hybrid materials are diverse and the synthesis of graphene over sapphire shows promise.
Article
Chemistry, Multidisciplinary
Ransheng Chen, Qiang Li, Qifan Zhang, Jiaxing Li, Zhihao Zhang, Wannian Fang, Lingyan Wang, Feng Yun, Tao Wang, Yue Hao
Summary: A high-crystallinity hBN film has been successfully achieved on a catalyst-free sapphire substrate using the LPCVD technique. The nitridation process is found to play a crucial role in obtaining high-quality hBN with suppressive N-vacancy. The growth mechanism of hBN on sapphire has been proposed, and the morphology of hBN evolves with increasing growth pressure.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Anushka Bansal, Maria Hilse, Benjamin Huet, Ke Wang, Azimkhan Kozhakhmetov, Ji Hyun Kim, Saiphaneendra Bachu, Nasim Alem, Ramon Collazo, Joshua A. Robinson, Roman Engel-Herbert, Joan M. Redwing
Summary: Under high temperature hydrogen atmosphere, the deposition of hexagonal boron nitride (hBN) on C-plane and A-plane sapphire substrates have different effects. Compared to C-plane, A-plane sapphire provides a more stable substrate option for high quality hBN growth.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Ray-Hua Horng, Dong-Sing Wuu, Po-Liang Liu, Apoorva Sood, Fu-Gow Tarntair, Yu-Hsuan Chen, Singh Jitendra Pratap, Ching -Lien Hsiao
Summary: In this study, monoclinic gallium oxide (beta-Ga2O3) epilayer was successfully grown on a sapphire substrate by MOCVD. Controlling the growth temperature, TEGa flow rate, and growth time improved the crystallization characteristics of the epilayers. However, it also increased the surface roughness of beta-Ga2O3 film. The growth mechanism and chemical reactions between TEGa and oxygen precursors were analyzed.
MATERIALS TODAY ADVANCES
(2022)
Article
Materials Science, Multidisciplinary
Ray-Hua Horng, Apoorva Sood, Siddharth Rana, Niall Tumity, Fu-Gow Tarntair, Catherine Langpoklakpam, Hao-Chung Kuo, Jitendra Pratap Singh
Summary: Conductive β-Ga2O3 epilayers grown on the sapphire substrate using MOCVD were studied by Si-ion implanted. A metal-insulator-semiconductor diode (MISD) was fabricated using undoped and Si-implanted β-Ga2O3 epitaxial layer. The electrical and carrier transport properties of different MISD with different distance between cathode and anode contact were investigated.
MATERIALS TODAY ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Xinlin Liu, Cailing Liu, Yushuang Fu, Yiguo Xu, Karim Khan, Ayesha Khan Tareen, Ye Zhang
Summary: In this research, a mixed-dimensional van der Waals heterostructure (vdWH) CeO2@Bi was synthesized through a facile hydrothermal method. The resulting photodetector showed self-powered photodetection capability with fast photoresponse speed and high photocurrent and photoresponsivity under 365 nm illumination. Additionally, good long-term cycle stability was observed in a harsh environment.
Article
Chemistry, Multidisciplinary
Valerie Demange, Xavier Portier, Sophie Ollivier, Mathieu Pasturel, Thierry Roisnel, Maryline Guilloux-Viry, Christian Hebert, Magdalena Nistor, Christophe Cachoncinlle, Eric Millon, Jacques Perriere
Summary: The room temperature growth of zinc-doped iron oxide films (Zn:FeOx) on different sapphire substrates was investigated using the pulsed-laser deposition method. Characterization techniques including Rutherford backscattering spectrometry, X-ray diffraction analysis, pole figure measurements, and transmission electron microscopy were employed to determine the nature of the oxide phases, their texture, and the in-plane epitaxial relationships. The results showed variations in oxide phases and textures on different sapphire substrates.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
A. F. M. Anhar Uddin Bhuiyan, Zixuan Feng, Hsien-Lien Huang, Lingyu Meng, Jinwoo Hwang, Hongping Zhao
Summary: Single alpha-phase (AlxGa1-x)(2)O-3 thin films were successfully grown on m-plane sapphire substrates via metalorganic chemical vapor deposition, demonstrating high quality and uniformity. The influence of growth parameters on film properties was further investigated. X-ray photoelectron spectroscopy was employed to characterize the aluminum content and bandgaps, with the band alignment at heterojunctions also studied.
Article
Chemistry, Physical
Gavax Joshi, Yogesh Singh Chauhan, Amit Verma
Summary: β-Ga2O3 has been attracting attention for power electronics and deep ultraviolet (UV) photodetector applications due to its wide bandgap and high electric breakdown strength. Growth of high-quality β-Ga2O3 thin films with high growth rate has been achieved using LPCVD, with growth temperature playing a crucial role in film quality and crystallinity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Anushka Bansal, Xiaotian Zhang, Joan M. Redwing
Summary: The study investigates the effects of growth conditions and gas-phase chemistry on the growth rate of hBN in CVD. It is found that using flow modulation epitaxy method can significantly increase the hBN growth rate and exhibits a strong positive dependence on substrate temperature.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
Xiongjie Li, Pingjuan Niu, Pingfan Ning, Yong Jiang
Summary: An ultra-flat heteroepitaxy α-Ga2O3 thin film, with a root mean square (RMS) roughness of 0.309 nm and high crystallinity, was successfully obtained on a c-plane sapphire substrate using mist chemical vapor deposition. The growth rate was calculated as 13.22 nm min(-1) and the bandgap of the transparent film was determined to be 5.10 eV. This high quality, wide bandgap heteroepitaxy α-Ga2O3 thin film represents a significant advancement for the preparation of high power and optoelectronic devices.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2023)
Article
Crystallography
Xu-Qiang Shen, Kazutoshi Kojima
Summary: AlN films were grown on c-plane sapphire substrates by AFHT-MOCVD, and the effects of source gas flow rate and growth temperature on the AlN growth rate were studied. The maximum growth rate achieved was approximately 4.0 μm/hour. Possible mechanisms for gas reactions in the AFHT-MOCVD growth process were qualitatively discussed based on experimental results. The as-grown AlN films were characterized using HRXRD, SEM, and STEM, and exhibited narrow FWHM values for symmetric and asymmetric AlN diffractions, indicating the potential for high-quality growth using this technique.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Chemistry, Multidisciplinary
Weichen Xiao, Mark A. Buckingham, Yi Li, Kerry Hazeldine, Bing Han, Sarah H. Cartmell, Alexander S. Eggeman, Alex S. Walton, David J. Lewis
Summary: This study reports the synthesis of a high entropy (CuZnCoInGa)S metal sulfide thin film using molecular precursors and deposited by AACVD for the first time.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Xiang Xu, Tingting Zhong, Nian Zuo, Zexin Li, Dongyan Li, Lejing Pi, Ping Chen, Menghao Wu, Tianyou Zhai, Xing Zhou
Summary: In this study, CuCrS2 nanoflakes were successfully synthesized by salt-assisted chemical vapor deposition, demonstrating switchable ferroelectric polarization even at a thickness of 6 nm. The high T-C of around 700 K can be attributed to the robust tetrahedral bonding configurations of Cu cations, with further clarification provided by a theoretically predicted high order-disorder transition barrier and structure evolution from 600 to 800 K. Additionally, interlocked out-of-plane and in-plane ferroelectric domains were observed, leading to the demonstration of two devices based on different polarizations.
Article
Materials Science, Ceramics
Xuefei Wang, Yuxin Fan, Guoqiang Luo, Rong Tu, Qiang Shen, Lianmeng Zhang
Summary: With the increasing application rate of multilayer ceramic capacitors (MLCCs) in small electronic devices, there is a need for the use of barium titanate (BaTiO3) raw material with small particle size and excellent dielectric properties. In this study, small cubic phase Y-doped BaTiO3 (BYT) nanoparticles were prepared using a hydrothermal method, and highly dielectric tetragonal phase BYT ceramics were prepared based on this method. The results demonstrate that the 50 nm cubic phase BaTiO3 powder can meet the needs of next-generation high-capacity MLCCs, providing a reference for small cubic phase BaTiO3 as a dielectric material for high-capacity MLCCs.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Rong Tu, Jiaojiao Li, Mingpu Jia, Qizhong Li, Meijun Yang, Song Zhang, Takashi Goto
Summary: B4C-CrB2 composites were prepared by arc-melting using B4C and CrB2 powders as raw materials. The eutectic composition of B4C-CrB2 system was 30B(4)C-70CrB(2) (mol%) with a labyrinth-like irregularly layered eutectic microstructure. The composites exhibited maximum Vickers hardness (24.6 GPa) and fracture toughness (4.3 MPa m(1/2)) at room temperature.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
Guoqiang Luo, Ganrong Zhang, Luo Bai, Ying Zhang, Yuxin Fan, Yuzhe Han, Xiaoping Guo, Meijuan Li, Rong Tu, Qiang Shen
Summary: In this study, high tetragonality BaTiO3 (BT) powder with controllable dispersion and particle size was successfully synthesized using a two-step hydrothermal method and combined dispersants, namely cetyltrimethylammonium bromide (CTAB) and polyvinyl-pyrrolidone (PVP). The synergistic effect of chemical bond force and electrostatic adsorption force between these dispersants at high temperature resulted in the achievement of ultrafine BT powder with high c/a ratio, small size, and low polydispersity index. This approach is of great significance for synthesizing BT powder with high tetragonality, high dispersion, and small particle sizes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Yanan Zhao, Liangcong Hu, Honglian Dai, Pengzhen Zhuang, Kai Huang, Wen Hou, Jiawei Liu, Rong Tu, Takashi Goto
Summary: Infected bone defect has become a serious complication in orthopedic surgery due to bacterial biofilm formation. In this study, drug-loaded hollow mesoporous ferrite nanoparticles were prepared and incorporated into calcium magnesium phosphate cement, forming a Trap-Capture-Kill system to efficiently kill bacteria and inhibit biofilm formation. Under an alternating magnetic field, the composites exhibited acute magnetic hyperthermal capacity and recruited free bacteria. The permeability of bacterial cell membrane was increased by reactive oxygen species damage, allowing the drugs encapsulated in the nanoparticles to penetrate. The bacteria were then efficiently killed through magnetothermal effect, ROS damage, and adsorption damage. Furthermore, the antibacterial system showed excellent pro-osteogenesis and pro-angiogenic capacity, promoting vascularized bone regeneration in vivo.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Song Zhang, Jinrong Hu, Tianyu Zhu, Jian Peng, Rong Tu, Chuanbin Wang, Lianmeng Zhang
Summary: In this study, the chemical vapor deposition of 2D NbC on the Cu(1 1 1) substrate was investigated using first-principles calculations. The nucleation sites of Nb, C atoms, and NbCy (y = 1, 2, 3) clusters on the Cu(1 1 1) surface were determined, as well as the dominant precursor during the initial growth of NbC. The growth kinetics and epitaxial growth mechanism of a 2D NbC(1 1 1) single crystal on Cu(1 1 1) were elucidated.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xiaole Song, Long Zheng, Rong Tu, Baifeng Ji, Jun Li, Song Zhang
Summary: V/LiF is an important window material for investigating phase transition of materials under ultra-high pressure, which is a fundamental issue in condensed matter physics. However, the large mismatch in lattice and thermal properties makes vanadium growth on LiF a big challenge. In this study, over 1.5 μm thick vanadium films were successfully grown on LiF using facing target sputtering (FTS), and transmission electron microscopy (TEM) observation revealed vertically well-aligned columnar crystals with numerous micro-sized gaps in the grown vanadium films. Particle-in-cell Monte Carlo collision (PIC-MCC) and Kinetic Monte Carlo (KMC) methods were used to simulate plasma discharge behavior, sputtered atom transport, and film growth to understand the deposition mechanism. A growth model of the vanadium film was established based on experimental and simulation results, and the micro-sized gaps in the columnar crystals were found to contribute to the release of residual stresses caused by the large mismatch, which can be explained by the grain boundary relaxation model.
APPLIED SURFACE SCIENCE
(2023)
Article
Automation & Control Systems
Kai Liu, Zhenji Zhang, Huajun Sun, Ce Sun, Lei Qiu, Yusheng Shi, Song Zhang, Rong Tu, Shangyu Huang, Yanying Du
Summary: By comparing rheological and curing properties of slurries with different solid content, alumina slurries with high solid content were proposed. The relative density of alumina ceramics prepared by a slurry of 72.5 wt.% solid content reached 96% after sintering in an air atmosphere. Additionally, different triply period minimal surface (TPMS) structural models (Gyroid, Diamond, and F-RD) were established and the simulation showed that the Gyroid structure has a higher compression property than the other two structures. After DLP printing, TPMS structural alumina green bodies were sintered and the maximum compressive strength of the Gyroid structure with 60% ceramic volume fraction reached 27.42 MPa.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Yuri Mitsuhashi, Shogen Matsumoto, Akihiko Ito
Summary: The eutectic structure in metals and ceramics is a self-organization phenomenon where multiple solid phases solidify in an ordered structure from a liquid phase. Ordered structures of Y3Al5O12 (YAG)-Al2O3 composites were prepared via chemical vapor deposition in the YAG-Al2O3 eutectic system. This study reveals that ordered structures can be formed not only during the melt-solidification process but also during the vapor deposition process.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Coatings & Films
Xianglin Fang, Rong Tu, Jiawei Liu, Honglian Dai, Long Zheng, Shaobo Zhu, Song Zhang, Takashi Goto
Summary: TiAlN/Ag multiple coatings with different gradient distributions in thickness were prepared on titanium alloys using unbalanced magnetron sputtering, improving the antibacterial activity and surface hardness. The coatings with gradient thickened TiAlN-Ag cosputtered upper layers showed stronger antibacterial activity (99.82% against Escherichia coli) compared to those with gradient thinned upper layers. With increasing gradient cycles, the antibacterial activity decreased while the hardness increased. The alternate growth of TiAlN and TiAlN-Ag layers can provide excellent comprehensive antibacterial activity (99.23% against Escherichia coli) and hardness (two times TC4 alloy) in the long term.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Multidisciplinary
Rong Tu, Xinyu Li, Qingfang Xu, Bao-Wen Li, Tenghua Gao, Xian Zhang, Song Zhang, Takashi Goto, Lianmeng Zhang
Summary: This study reports the first growth of uniquely <010>-oriented ss-Ga2O3 films on quartz substrates by laser chemical vapor deposition (LCVD). The <010> orientation is closely related to the higher stability of oxygen close-packed planes under O-rich condition. The <010>-oriented ss-Ga2O3 film-based MSM type detector exhibits ultra-fast response speed.
Article
Materials Science, Coatings & Films
Qizhong Li, Tao Huang, Mai Yang, Tenghua Gao, Baifeng Ji, Song Zhang, Lianmeng Zhang, Rong Tu
Summary: Hard coatings with gradient and multilayer structures were prepared by high-power pulsed magnetron sputtering. The modulation period was found to significantly affect the microstructure, mechanical, and tribological properties of the coatings. Shorter modulation periods improved the adhesion strength and resulted in higher hardness and lower friction coefficients.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Rong Tu, Zhen Liu, Qingfang Xu, Song Zhang, Qizhong Li, Xian Zhang, Marina L. Kosinova, Takashi Goto
Summary: Silicon nitride films were fabricated using halide laser chemical vapor deposition (LCVD) for surface protection of electronic devices. The study investigated the effects of deposition parameters on the crystallinity, microstructure, deposition rate, Vickers microhardness, nano-hardness, and electrical resistivity. The highest deposition rate was achieved at a temperature of 1573 K and pressure of 10 kPa. The hardness of the films increased with temperature and the electrical resistivity decreased.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Song Zhang, Kaixin Zuo, Pengjian Lu, Qingfang Xu, Meijun Yang, Kai Liu, Rong Tu
Summary: This study investigated the wetting behavior of Al on a highly oriented SiC surface, and found that the contact angle could be controlled from 6° to 153° at a wetting temperature of 1573-1773 K. The obtained contact angle range was larger than that of polycrystalline silicon carbide (9-113°) and single crystal silicon carbide (31-92°). The presence of many dislocations at the Al/SiC interface increased the interfacial energy, resulting in a greater contact angle for Al on the 111-oriented SiC coating surface than on the 110 one.
Article
Chemistry, Multidisciplinary
Rong Tu, Kunqiu Leng, Chao Song, Chitengfei Zhang, Yingqiu Zheng, Yuzhe Han, Guoqiang Luo, Song Zhang, Takashi Goto
Summary: High-performance NiO/Ni/C nanosheet catalysts were prepared by liquid-phase pulsed plasma (LPP). The plasma was generated between two nickel electrodes in ethylene glycol (EG) solution by a homemade high-voltage pulse power supply. Hierarchical porous carbon nanosheets were formed by the decomposition of organics in the EG solution under the catalysis of LPP, and spherical Ni/NiO particles were adsorbed on the surface to form the NiO/Ni/C composites. The pore size distribution of the composites could be controlled with different EG concentrations, and the composites with 10 vol% EG concentration showed exceptional OER activity (289.2 mV overpotential at 10 mA cm(-2)).
Article
Materials Science, Coatings & Films
Weilong Gao, Ruizhi Zhang, Jin Wang, Zihao Huang, Zhiguo Li, Yajun Fu, Guoqiang Luo, Rong Tu
Summary: In this study, Al/Ti-RMF with different modulation periods were prepared and integrated into multilayer flyer plates, leading to optimized performance for laser-driven flyers. Experimental and simulation results demonstrate that Al/Ti-RMF with a modulation period of 150 nm exhibits higher flyer velocity and energy coupling efficiency.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(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)
