Article
Materials Science, Multidisciplinary
D. B. Wang, J. Wu, Q. Wang, L. Wan, W. Emori, S. D. Zhang, J. Q. Wang
Summary: The study found that as the temperature increased, the passive current for amorphous steel increased significantly without pitting corrosion, due to the decrease in Cr2O3 content and changes in the semiconductor characteristics of the passive film. At higher temperatures, the prominent pitting resistance was attributed to the inhibited pit initiation by the uniform passive film and the suppressed stable growth of metastable pits.
Article
Nanoscience & Nanotechnology
John Akintola, Yuhui Chen, Zachary A. Digby, Joseph B. Schlenoff
Summary: This study describes a new type of glassy antifouling film made from positive and negative polyelectrolyte complexes. These complexes exhibit tough characteristics below the glass transition temperature and have strong hydration properties. The films effectively resist the adhesion of algae on surfaces, making them highly promising for practical applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Qian Wu, Yubo Cui, Guifeng Xia, Jinlong Yang, Shuming Du, Xinhong Xiong, Li Yang, Dong Xu, Xu Deng, Jiaxi Cui
Summary: Passive daytime radiative cooling (PDRC) technology, while promising for global spacing cooling, faces limitations in practical application due to reduced cooling effectiveness caused by wear and dirt contamination. Researchers have developed a renewable armor structure using fluorinated hollow glass microspheres to enhance the anti-fouling and cooling properties of PDRC coatings. The coatings exhibit high solar reflectance and thermal emittance, leading to significant temperature reduction below ambient temperature.
CHINESE CHEMICAL LETTERS
(2024)
Article
Materials Science, Multidisciplinary
Jesus Manuel Vega, Larraitz Ganborena, Yaiza Gonzalez-Garcia, Berkem Ozkaya, Hans-Jurgen Grande, Eva Garcia-Lecina
Summary: The impact of pH on local corrosion behavior of microporous nickel-chromium coatings was investigated using Scanning Electrochemical Microscopy and validated by potentiodynamic polarisation measurements. The results showed a correlation between the two techniques and identified different corrosion rates under varying pH levels due to the increased aggressiveness of the electrolyte. However, a similar corrosion mechanism was observed regardless of the pH, with isotropic growth of active sites during the early stages of corrosion and the attack of different nickel layers during corrosion propagation as revealed by cross-sectional micrographs obtained by Field Emission-Scanning Electron Microscope.
Article
Materials Science, Multidisciplinary
Ronald R. Willey, Olaf Stenzel
Summary: In the field of nanomaterials and meta-materials, thin films are used with thicknesses much thinner than previously used in optical thin film coatings. However, the island structure that occurs during film nucleation and growth poses a problem. The indices of refraction, n and k, also vary with thickness, making it difficult to model. This paper introduces a tool for designing optical thin films with varying indices of refraction.
Article
Chemistry, Multidisciplinary
Xiameng Shan, Ling Liu, Yusi Wu, Dengsen Yuan, Jing Wang, Chengjiao Zhang, Jin Wang
Summary: Passive daytime radiative cooling (PDRC) is a sustainable technology that achieves self-cooling by radiating heat to outer space. In this study, polymer films based on thermoplastic polyurethane (TPU) and their composite films with silica aerogels were found to have high solar reflection and radiative ability, making them suitable for personal thermal management (PTM) and waterproof breathable textile applications.
Article
Materials Science, Multidisciplinary
Shengfeng Zhou, Junjie Yang, Cheng Deng, Jianbo Jin, Lianxi Hu, Yang Lu
Summary: Cu-based immiscible coatings reinforced with 10 wt% Fe-based amorphous powder were produced by laser melting deposition. The microstructure and corrosion behavior were investigated. The results showed that the interface of the coating and substrate changed from poor bonding to good bonding and crack debonding with increasing laser energy density. The corrosion characteristics also transformed from crevice corrosion to enhanced protection of passive films and reduced protection of passive films. The immiscible coating deposited with a laser energy density of 31.25 J/mm2 exhibited the highest corrosion resistance.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Taotao Ji, Yifan Song, Jiahui Yan, Yanwei Sun, Chen Wang, Sixing Chen, Yi Liu
Summary: Flawless coordination polymer (CP) glass films were successfully prepared using rapid hot casting and melt quenching techniques. The films exhibited excellent gas barrier properties and corrosion resistance due to the structure that inhibited the diffusion of guest molecules. This study demonstrates the high potential of CP glass films for applications in gas barrier layers and corrosion-resistant coatings.
CHEMISTRY OF MATERIALS
(2022)
Article
Energy & Fuels
Corrado Garlisi, Esra Trepci, Elie Azar, Giovanni Palmisano
Summary: A systematic approach to the design of metal-dielectric multilayer coatings for energy-efficient building glazing application is proposed. The study finds that five-layer coatings offer a competitive modulation of optical properties, ensuring a higher visible transmittance in the whole visible region.
Article
Chemistry, Applied
Christos-Konstantinos Mouzakitis, Vasileia Sereti, Anthia Matsakidou, Kali Kotsiou, Costas G. Biliaderis, Athina Lazaridou
Summary: The physicochemical properties of zein-based edible films with sunflower oil were studied. The addition of sunflower oil decreased water vapor permeability and delayed bread staling. Coating bread with zein films using spraying method showed the best results.
FOOD HYDROCOLLOIDS
(2022)
Article
Materials Science, Ceramics
Maziar Montazerian, Fatemeh Hosseinzadeh, Carla Migneco, Francesco Baino, Marcus V. L. Fook
Summary: Metallic implants in orthopedic surgeries can fail due to various reasons, but bioceramic coatings offer a suitable solution. This review provides an overview of different types of metallic implants and their pros and cons, focusing on the application of bioceramic coatings on them.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Havard Wilson, Svein Sunde, Andreas Erbe
Summary: The mechanism of corrosion rate increase of anodised iron under illumination has been studied by comparing photocurrents with corrosion currents. Results show that corrosion current densities increase by maximum 30% when photon energies are larger than the iron oxide band gap, largely triggered by hole annihilation through cation dissolution. Thermal effects in the oxide also play a role.
Article
Chemistry, Multidisciplinary
Lina Grineviciute, Soon Hock Ng, Molong Han, Tania Moein, Vijayakumar Anand, Tomas Katkus, Meguya Ryu, Junko Morikawa, Mark J. Tobin, Jitraporn Vongsvivut, Tomas Tolenis, Saulius Juodkazis
Summary: Polarisation analysis was conducted on thin Si and SiO2 films in the mid-infrared fingerprint region. The study revealed that the Si-O-Si stretching vibration absorption band follows an angular dependence consistent with absorption anisotropy, attributed to enhanced absorption in nano-crevices.
Review
Materials Science, Multidisciplinary
Kaibao Wang, Huirong Le
Summary: This article reviews the current use of conventional coatings and evaluates the potential use of novel geopolymer coatings on metal substrates, particularly on steel structures. Traditional fireproofing systems have unavoidable limitations, while innovations in coatings are rapidly developing. Geopolymer coatings have attracted attention due to their higher mechanical strength and excellent resistance to chemicals and heat. Compared to cement-based coatings, geopolymer coatings offer superior mechanical and thermal performance with lower environmental impact, suggesting great potential for fire protection on steel structures.
Article
Materials Science, Coatings & Films
Srikant Tiwari, S. B. Mishra
Summary: Pure hydroxyapatite, pure titanium, and titanium-hydroxyapatite composite coatings with different titanium contents were deposited on 254 SMO steel. The Ti40-HAp composite coating exhibited the highest microhardness and adhesion strength due to its low porosity and low coefficient of thermal expansion. The bioactivity of the coatings decreased as the titanium content increased. The formation of rutile TiO2 and CaTiO3 phases significantly enhanced the performance of the coatings.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
S. D. Zhang, J. Wu, W. B. Qi, J. Q. Wang
Article
Materials Science, Coatings & Films
J. Wu, S. D. Zhang, W. H. Sun, J. Q. Wang
SURFACE & COATINGS TECHNOLOGY
(2018)
Article
Electrochemistry
J. Wu, J. P. Cui, Q. J. Zheng, S. D. Zhang, W. H. Sun, B. J. Yang, J. Q. Wang
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Physical
J. Yang, J. Wu, C. Y. Zhang, S. D. Zhang, B. J. Yang, W. Emori, J. Q. Wang
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Qiuju Zheng, Jing Wu, Hongxiang Jiang, Lili Zhang, Jiuzhou Zhao, Jie He
Summary: The study found that micro-alloying element La can improve the corrosion resistance of Al-Mg-Si alloys by forming Mg2Si particles with a La-rich surface shell and isolated Si particles, which slows down the corrosion rate and inhibits localized corrosion.
Article
Materials Science, Multidisciplinary
D. B. Wang, J. Wu, Q. Wang, L. Wan, W. Emori, S. D. Zhang, J. Q. Wang
Summary: The study found that as the temperature increased, the passive current for amorphous steel increased significantly without pitting corrosion, due to the decrease in Cr2O3 content and changes in the semiconductor characteristics of the passive film. At higher temperatures, the prominent pitting resistance was attributed to the inhibited pit initiation by the uniform passive film and the suppressed stable growth of metastable pits.
Article
Chemistry, Multidisciplinary
Ke Li, Kun Xu, Ye He, Lu Lu, Yulan Mao, Pengfei Gao, Genhua Liu, Jing Wu, Yuchen Zhang, Yang Xiang, Zhong Luo, Kaiyong Cai
Summary: The study introduces a novel strategy to induce cell death by targeting liver tumor nanosheets in HepG2 cells, demonstrating superior ferroptosis induction ability and anti-tumor efficacy.
Article
Materials Science, Multidisciplinary
Jing Wu, Meng Li, Chuanchuan Lin, Pengfei Gao, Rui Zhang, Xuan Li, Jixi Zhang, Kaiyong Cai
Summary: This study investigates the interaction between localized corrosion of Ti6Al4V implant material and the adsorption of bovine serum albumin (BSA). The results show that BSA adsorption is regulated by the metallic ion release from crevice corrosion. BSA preferentially aggregates at the interior of artificial crevice due to electrostatic interaction with concentrated metallic cations, which decreases the crevice corrosion susceptibility of the implant material.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Biomaterials
Dan Peng, Genhua Liu, Ye He, Pengfei Gao, Shuangquan Gou, Jing Wu, Jinxiu Yu, Peng Liu, Kaiyong Cai
Summary: This study successfully developed novel nanoparticles to effectively eliminate bacterial biofilms, enhancing photothermal therapy efficacy at low temperatures.
BIOMATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Zhichao Shang, Xiaoping Cai, Farshid Pahlevani, Yan Zheng, Akbar Hojjati-Najafabadi, Xinran Gao, Baojing Zhang, Peizhong Feng
Summary: High porosity Co-Al-Fe intermetallics with 3D-microstructures were successfully synthesized in one step via a thermal explosion reaction. The link between pore structure and permeability was investigated using 3D-XRM technology. The corrosion resistance of the samples with different Fe contents was studied at 900 degrees C under an oxygen/sulphur atmosphere for up to 120 h. The results showed that the samples maintained stable pore structure and intact internal matrices, attributed to the formation of a thin protective layer on the surface. In addition, inward diffusion of S resulted in the formation of FeS nodules.
Article
Materials Science, Multidisciplinary
Lian Ma, Hain Yang, Daquan Zhang, Wei Wu
Summary: In this study, an environmentally friendly volatile corrosion inhibitor, lysine salts (LA), was prepared between graphene oxide (GO) layers using an in situ intercalation technique. The corrosion inhibition effect of LA was evaluated, and it was found that LA-GO2 achieved a 99.3% corrosion inhibition efficiency after composition optimization. The inhibition of the electrochemical anodic process on the surface of mild steel was the main reason for the high corrosion inhibition efficiency of LA-GO2. The properties of the surface film on the corroded steel were also characterized in detail to understand the corrosion inhibition mechanism of LA-GO2.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Zihua Wang, Chijia Wang, Ruitao Wang, Jiapeng Deng, Kun Zhang, Yanji Zhu, Huaiyuan Wang
Summary: A robust anti-corrosive coating has been developed using functional fly ash, which demonstrates excellent corrosion resistance and improved mechanical properties. The coating achieves these enhancements through molecular cross-linking design and surface augmentation techniques, resulting in a significantly improved impedance modulus compared to pure polyurea coatings.
Article
Materials Science, Multidisciplinary
Haofei Sun, Meifeng Li, Hao Zhang, Jing Liu
Summary: The oxidation behavior of FeCrNi medium entropy alloy was investigated through experimental observations and density functional theory (DFT) calculations. The study found that at 900 degrees C, the alloy forms a desirable and continuous oxide layer, while at 1000 degrees C, the oxide layer becomes discontinuous with penetration of oxide. These observations highlight the significant role of phase structure in promoting the formation of protective oxide scales and influencing oxidation resistance.
Article
Materials Science, Multidisciplinary
Yang Li, Ke Ma, Jingjun Xu, Jingjing Li, Yueming Li, Yi Zhang, Jun Zuo, Meishuan Li
Summary: Cr2AlC diffusion barrier effectively blocks the diffusion of Ti, enhancing the stability and spalling resistance of the Al2O3 scales between NiCrAlY coating and TiAl alloy.
Article
Materials Science, Multidisciplinary
Weiyi Wang, Qinglin Pan, Xiangdong Wang, Bing Liu
Summary: By adding Ce, Sc, Y and Zr elements to Al-Mg-Si alloy, the microstructure of the alloy can be regulated, and the corrosion and heat resistance of the materials can be improved.
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Materials Science, Multidisciplinary
Yang Gao, Dayun Sun, Zhu Liu, Shuo Cong, Rui Tang, Yanping Huang, Lefu Zhang, Xianglong Guo
Summary: The corrosion characteristics of a novel alumina-forming austenitic steel in high-pressure high-temperature water environment were studied. The addition of aluminum has a negative effect on the continuity of the alumina scale.
Article
Materials Science, Multidisciplinary
Negin Madelat, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shoshan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman
Summary: This work explores the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in organic coatings. An odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach is used to analyze the diffusion of ions independent from water uptake. The results show that a higher PVC leads to a more homogeneous coating structure, resulting in faster diffusion of ions and enhanced water uptake.
Article
Materials Science, Multidisciplinary
Eloa Lopes Maia, Serguei Gavrilov, Valentyn Tsisar, Kitty Baert, Iris De Graeve
Summary: The effect of pre-oxidation in air at 300-500°C on the initiation and development of liquid metal corrosion attack on 316L austenitic steel in static lead-bismuth eutectic (LBE) has been investigated. It was found that pre-formed oxide films can protect the surface against dissolution, while high temperature pre-oxidation leads to localized corrosion.
Article
Materials Science, Multidisciplinary
Baozhuang Sun, Qiuyu Wang, Yue Pan, Zhiyong Liu, Cuiwei Du, Xiaogang Li
Summary: In this study, a non-steady electrochemical model was established to investigate stress corrosion cracking (SCC). The model was verified using 304 SS with various microstructures, confirming its effectiveness in assessing SCC susceptibility.
Article
Materials Science, Multidisciplinary
Xingyu Xiao, Xinhua Liu, Zhilei Wang, Xuexu Xu, Mingying Chen, Jianxin Xie
Summary: The corrosion behavior and mechanisms of Cu-10Ni-X (Al, Fe, Mn, Cr, Sn, Ti, Zn) alloys in a 3.5% NaCl solution were systematically investigated. Both computational and experimental results revealed that except Ti, other elements could enhance the corrosion resistance of Cu2O passivation film.
Article
Materials Science, Multidisciplinary
Gen Zhang, Yan-Ping Huang, E. Jiang, Wei -Wei Liu, Hong Yang, Jing Xiong, Yong-Fu Zhao
Summary: The addition of aluminum has a significant influence on the intermetallic compounds in AFA alloys, particularly increasing the content of B2-NiAl phase. In the SCO2 environment, the oxide scales formed on AFA alloys with aluminum were thinner than on ASS without aluminum, and the structure of the oxide scales changed to a double-layer structure.
Article
Materials Science, Multidisciplinary
Yuxuan He, Guozheng Xiao, Chao Wang, Xuefeng Lu, Liuyuan Li, Shiying Liu, Yusheng Wu, Zhanjie Wang
Summary: The relationship between configurational entropy and lattice distortion in novel rare earth monosilicates was investigated, and the effect of configurational entropy on their properties was studied. The results showed that lattice distortion increased with the increase of configurational entropy, but a highly symmetrical crystal structure was formed when the configurational entropy was large enough, inhibiting the lattice distortion.
