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Multifunctional hydrophobic/superhydrophobic protective coatings for magnesium alloys:A review on material design,protection mechanisms,and engineering applications 认领 引用
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作者 Qing Xiang Jingxiong Zeng Bo Qiao 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2026年第4期92-117,共26页
Magnesium(Mg)alloys have broad application prospects in transportation,biomedical engineering,and marine engineering owing to their low density,high specific strength,and excellent processing properties.However,their ... Magnesium(Mg)alloys have broad application prospects in transportation,biomedical engineering,and marine engineering owing to their low density,high specific strength,and excellent processing properties.However,their inherent susceptibility to corrosion and insufficient service stability urgently necessitate the development of advanced protective coating technologies.Functional hydrophobic and superhydrophobic coatings are designed by constructing special wetting interfaces that combine micro-anostructures with low-surface-energy materials.These coatings not only significantly delay the penetration of corrosive media but also integrate multiple functionalities,such as antibacterial activity,self-healing,anti-icing,antifouling,photocatalysis,and electrical conductivity,thereby realizing a transition from passive isolation to active protection.This review systematically summarizes the material systems,structural design strategies,protection mechanisms,representative fabrication methods,and recent progress in the application of functional hydrophobic/superhydrophobic coatings for Mg alloys.Particular attention is devoted to the synergistic relationships among surface roughness,porosity,surface energy,and durability,as well as to defect evolution and failure modes under multifield coupled environments.Addressing current bottlenecks,including the lack of fluorine-free alternatives,insufficient multifunctional integration,complex fabrication processes,and limited long-term service stability,the article highlights future research directions such as green alternative materials,multifunctional modular integration,bioinspired interface reinforcement,and intelligent responsive protection systems.Collectively,these insights provide theoretical foundations and technical pathways toward achieving long-term,reliable protection and advancing the practical engineering applications of hydrophobic/superhydrophobic coatings on Mg alloys under complex service environments. 展开更多
关键词 Mg alloys Hydrophobic/superhydrophobic coatings Corrosion protection Multifunctional coatings Surface engineering
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Calcium phosphate and ion-substituted coatings for resorbable magnesium-based bone implants:A review 认领 引用
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作者 Aoife McFerran Ellamay McIlhatton +8 位作者 Elizabeth McGuckin Mollie Byrne Owen J.Diamond Richard J.Napier John O’Connor Patrick Lemoine Adrian R.Boyd Joanna Ward Jonathan G.Acheson 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2026年第3期7-27,共21页
Magnesium(Mg)and its alloys are promising alternatives to conventionally used bioinert metals for bone repair due to their favorable biocompatibility and mechanical properties that closely mimic that of natural bone.H... Magnesium(Mg)and its alloys are promising alternatives to conventionally used bioinert metals for bone repair due to their favorable biocompatibility and mechanical properties that closely mimic that of natural bone.However,Mg-based implants are limited by rapid corrosion in physiological environments,posing significant challenges such as premature implant failure,hydrogen gas accumulation and potential cytotoxicity.Calcium phosphate and ion-substituted coatings can not only enhance corrosion resistance of Mg-based implants by providing a barrier layer but also promote osseointegration and offer therapeutic functionality.These ceramic coatings,including hydroxyapatite and other substituted variations with strontium,zinc,silicon and silver offer further advantageous properties that can improve bone-implant integration and enhance antibacterial efficiency,leading to better patient outcomes.Advanced deposition techniques,including RF Magnetron sputtering and biomimetic immersion,enable precise control over coating properties and composition resulting in highly functionalized and tailored thin film coatings.This review discusses and evaluates various coating technologies and deposition techniques applicable to bone defect repair and implantation devices,with a focus on ceramic calcium phosphates and ion-substituted apatites,for the optimization of Mg-based implants towards clinic translation. 展开更多
关键词 Magnesium alloys Calcium phosphate coatings Ion-substituted calcium phosphate coatings Resorbable metals in surgery Coating technologies Functionalized surface
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Rational Design of Multifunctional Nano–Architected Coatings for Bipolar Plates in Proton Exchange Membrane Fuel Cells 认领 引用
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作者 Shijie Li Shuai Xiao +10 位作者 Xin Yong Siyu Qin Jianbang Ge Zhe Wang Zhijing Yu Xinrui Wang Yi Lu Xiaodong Chen Xuefeng Zhang Zhenghao Pu Wei Lin 《Rare Metals》 SCIE EI CAS CSCD 2026年第3期78-102,共25页
Proton exchange membrane fuel cells(PEMFCs)require advanced bipolar plate coatings to enhance efficiency,durability,and commercialization potential.This review presents a systematic framework for evaluating and design... Proton exchange membrane fuel cells(PEMFCs)require advanced bipolar plate coatings to enhance efficiency,durability,and commercialization potential.This review presents a systematic framework for evaluating and designing bipolar plate coatings,integrating material selection,performance metrics,deposition techniques,and future innovation strategies.Four primary coating categories,namely carbon,metallic,compound,and conductive polymers,are assessed within this framework,considering electrical conductivity,interfacial contact resistance,corrosion resistance,mechanical stability,and hydrophobicity.The review also examines deposition scalability and trade-offs,highlighting the potential of artificial intelligence-driven material design and carbon-ceramic-polymer hybrid architectures to overcome current limitations.By synthesizing existing knowledge into an overarching design and evaluation framework,this work guides the development of multifunctional coatings that balance conductivity,durability,and cost-effectiveness,accelerating PEMFCs'advancement and sustainable energy adoption. 展开更多
关键词 bipolar plate coatings coating deposition corrosion resistance interfacial contact resistance PEMFCs
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Amphiphilic Block Copolymer-Functionalized VO2Nanocomposites for Smart Waterborne Polyurethane Coatings 认领 引用
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作者 Xiuxian Zhao Junhua Sun +7 位作者 Shudi Ying Rongchuang Geng Jiajia Feng Jiachen Ma Riming Hu Panpan Zhao Xuchuan Jiang Zheng Liu 《Rare Metals》 SCIE EI CAS CSCD 2026年第3期810-824,共15页
Aqueous vanadium dioxide(VO2)-based smart thermal insulation coatings represent a viable strategy to decrease building energy consumption and advance sustainable development goals.However,the inherent instability a... Aqueous vanadium dioxide(VO2)-based smart thermal insulation coatings represent a viable strategy to decrease building energy consumption and advance sustainable development goals.However,the inherent instability and limited compatibility with polymer matrices of VO2hinder its widespread application.Herein,a core-shell structured nanocomposite,VO2@poly(hexafluorobutyl methacrylate-block-N,N-dimethylacrylamide)(VO2@PHFBMA-b-PDMA),is developed and applied to waterbased intelligent coatings.The experimental results show that the designed block copolymer shell PHFBMA-b-PDMA not only has excellent acid and oxidation resistance but also improves the water dispersion stability of VO2,ensuring the compatibility between VO2and the organic polymer matrix.Moreover,the shell can effectively increase the carrier concentration in VO2,thereby significantly enhancing the local surface plasmon resonance effect and giving it excellent optical performance.By optimizing the formula and incorporating the VO2@PHFBMA-b-PDMA nanocomposites into water-based polyurethane resins,the resulting coating exhibits excellent adhesion,high hardness,and strong resistance to thermal cycling and ultraviolet aging.In addition,the coating has significant thermochromic properties,which can transmit nearinfrared radiation at low temperatures and effectively shield near-infrared radiation at high temperatures.Compared with uncoated glass,the designed coated glass can reduce indoor temperature by approximately 5℃. 展开更多
关键词 aqueous smart coatings core-shell structure energy-saving thermochromic vanadium dioxide
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Influence of the synergistic effect of rare-earth biphasic particles on wear properties of high-entropy alloy coatings prepared by extremely high-speed laser cladding 认领 引用
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作者 ZHANG Hao QIAO Meng-ying +4 位作者 YUE Xiu-jie WANG Xue-zhao WANG You-qiang DUAN Ji-zhou ZHANG Ping 《Journal of Central South University》 SCIE EI CAS CSCD 2026年第2期582-598,共17页
High-entropy alloy(HEA)coatings can effectively improve the wear properties of light alloys.CeO₂and Y₂O₃are two common rare-earth oxides that are often used as dopants to modify the structure and properties of the HEA... High-entropy alloy(HEA)coatings can effectively improve the wear properties of light alloys.CeO₂and Y₂O₃are two common rare-earth oxides that are often used as dopants to modify the structure and properties of the HEA coatings.In this paper,the HEA coatings of undoped(H 0),doped with CeO2(H 1),Y2O3(H 2),and CeO2+Y2O3(H3)were prepared by extremely high-speed laser cladding(EHLC).The effects of rare-earth biphasic particles and their synergistic effects on the microstructure and wear properties of the coatings were investigated.The results show that single CeO2/Y2O3doping can effectively improve the body-centered cubic(BCC)phase content and refine the grain structure of the coating,but when CeO2and Y2O3are co-doped,the BCC phase content of the coating can be improved more significantly,and the grain refinement is more obvious.Furthermore,the synergistic action of CeO2and Y2O3in the H₃coating resulted in a significant enhancement of the effects of solid solution strengthening,lattice distortion,and fine grain strengthening within the microstructure.This resulted in a substantial increase in the microhardness of the H3coating,reaching 970.36 HV,with a wear rate of merely 1.87×10−5mm3/(N·mm).In comparison with the H0,H1,and H2coatings,the hardness increased by 1.54 times,1.51 times,and 1.26 times,respectively.Concurrently,the wear rates decreased by 15.77%,12.83%,and 11.23%,respectively.The primary wear mechanisms observed in the coatings include abrasive wear,adhesive wear,and oxidative wear. 展开更多
关键词 high-entropy alloy coatings extremely high-speed laser cladding rare-earth oxides microstructure wear
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Investigation of subsurface damage mechanisms of Zn-Fe alloy coatings via novel in-situ indentation 认领 引用
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作者 Xianke Li Shunbo Wang +5 位作者 Taocheng Fan Jiajian Meng Xinhang Yang Cong Li Enpei Zhao Hongwei Zhao 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2026年第7期444-456,共13页
Zn-based alloy coatings are widely applied in surface mechanical protection due to their superior properties.However,the deformation mechanisms at interlayer and interfacial regions under localized mechanical loading ... Zn-based alloy coatings are widely applied in surface mechanical protection due to their superior properties.However,the deformation mechanisms at interlayer and interfacial regions under localized mechanical loading remain poorly understood due to technical limitations,hindering performance optimization.In this study,hot-dipped Zn-Fe alloy coatings,an essential Zn-based alloy coating system,were investigated using a novel in-situ indentation technique combined with scanning electron microscopy to directly characterize subsurface deformation during indentation.The results showed that the zinc layer(η)and the mixed layer of zinc and zinc-iron compound FeZn13(ζ1),with lower iron content,underwent plastic deformation without cracking.In contrast,the layer of zinc-iron compound FeZn13(ζ2)and the layer of zinc-iron compound FeZn10(δ),with higher iron content,exhibited significant crack formation and fracture.The intergranular cracks in theδlayer propagated to the interface,causing discontinuous fractures at the interface.These discontinuities and cracks mutually accelerated,resulting in rapid and catastrophic coating failure. 展开更多
关键词 Zn-Fe alloy coatings Indentation In situ Subsurface damage Interface
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Research Progress on Metal‐Organic Framework Materials in Corrosion‐Resistant and Antimicrobial Metal Functional Coatings 认领 引用
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作者 Yanchun Zhao Yunbo Lan +5 位作者 Qi Chang Fei Zhou Yongsheng Lin Peter KLiaw Peiqing La Faqi Zhan 《Rare Metals》 SCIE EI CAS CSCD 2026年第6期212-245,共34页
Metal‐organic frameworks(MOFs)hold significant potential across numerous advanced disciplines due to their exceptional properties,including high specific surface area,tunable porosity,structural diversity,and customi... Metal‐organic frameworks(MOFs)hold significant potential across numerous advanced disciplines due to their exceptional properties,including high specific surface area,tunable porosity,structural diversity,and customizable functionality.Increasing attention has been directed toward employing MOFs in coatings that offer both antimicrobial activity and corrosion resistance.This review systematically summarizes the novel applications of MOFs in protective coatings for metal surfaces,with an in‐depth discussion of preparation techniques,microscopic structural regulation,protective performance,and mechanisms underlying corrosion resistance and antimicrobial action.Studies demonstrate that MOF‐based protective coatings fabricated through various methods can substantially enhance the corrosion resistance of metal substrates.Regarding antimicrobial activity,the synergistic and complementary effects of two primary mechanisms are emphasized:sustained release of metal ions achieves long‐term antibacterial activity,whereas photodynamic/photothermal effects enable rapid sterilization and biofilm disruption.Despite significant advances in dual‐protection applications using MOFs,critical technical challenges persist,including complex fabrication processes,cost management difficulties,limited biocompatibility,and insufficient long‐term stability.Future research should focus on optimizing fabrication protocols,reducing costs,improving biocompatibility,and enhancing long‐term stability to enable the widespread industrial application of these intelligent protective materials in high‐end equipment manufacturing and biomedical engineering. 展开更多
关键词 antimicrobial and corrosion resistance mechanisms fabrication processes metal‐organic frameworks(MOFs) protective coatings structural regulation
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Corrosion and wear behavior of laser-processed Ti−Al−C composite coatings in artificial seawater environment 认领 引用
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作者 Lin-dan ZHU Hua-qiang XIAO +5 位作者 Yu-xin TIAN Zheng-wen ZHANG Tai-qian MO Bo LIN Guang FU Meng-ya CHU 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2026年第7期2035-2050,共16页
To enhance the corrosion resistance and wear performance of critical TC4 titanium alloy components in marine equipment while expanding their application scope,Ti−Al−C composite coatings were fabricated on Ti−6Al−4V(TC... To enhance the corrosion resistance and wear performance of critical TC4 titanium alloy components in marine equipment while expanding their application scope,Ti−Al−C composite coatings were fabricated on Ti−6Al−4V(TC4)substrates using laser technology(laser cladding and post-laser heat treatment).The microstructural evolution and compositional variations of both laser-cladded and post-laser-heat-treated coatings were investigated.The laser-cladded coating exhibits the best wear performance,with a wear rate of only 28.70%that of the TC4 substrate in artificial seawater environment.This is primarily attributed to the reinforcing effect of TiC particles and the passivating effect of the mechanically mixed products formed during the friction.The post-heat-laser-treated coatings,rich in Ti2AlC,exhibit outstanding corrosion resistance,with a corrosion current density nearly 1/10 that of the TC4 substrate.This study demonstrates that adjusting the content of Ti2AlC in laser-cladded coatings can meet the requirements for both corrosion resistance and wear resistance of the alloy in marine environment. 展开更多
关键词 Ti−Al−C composite coatings MAX phase laser technology corrosion artificial seawater friction wear
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Effect of H2on 8YSZ Coatings Prepared by Arc Plasma Torch 认领 引用
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作者 Geng Chuanwen Zhao Peng +2 位作者 Su Yi Fan Zihao Wu Xi 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2026年第8期1858-1864,共7页
The thermal barrier coatings(TBCs)are prepared using spraying technique of 8YSZ particles.In this process,H2is often added to the plasma torch discharge system.In order to study the effect of H2content on plasma... The thermal barrier coatings(TBCs)are prepared using spraying technique of 8YSZ particles.In this process,H2is often added to the plasma torch discharge system.In order to study the effect of H2content on plasma discharge,this study emplyed particle velocity capture diagnostics,optical emission spectroscopy,and finite element simulation to validate the relationship between H2content and coating quality.The results indicate that adding H2increases the temperature and velocity of plasma,which in turn improves the efficiency and in-flight velocity of molten 8YSZ particles.However,when the H2/(Ar+H2)is increased to 50%,the instability of arc root disturbs the arc plasma discharge,posing a challenge to maintaining the physical state of the in-flight particles.With an increase in H2flow rate,the coating quality shows a trend of first increasing and then decreasing,with the optimal flow rate ratio being H2/(Ar+H2)=37.5%.The findings of this work can serve as a theoretical guidance and reference for the preparation of TBCs via plasma. 展开更多
关键词 in-flight particles 8YSZ coatings plasma torch H2plasma
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High-temperature interaction of nanostructured Lu2Si2O7 environmental bar-rier coatings with CMAS melts at 1400℃ 认领 引用
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作者 Donghui Guo Runze Jin Baosheng Xu 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2026年第2期737-748,共12页
The high-temperature interaction of nanostructured Lu2Si2O7 environmental barrier coatings(EBCs)with calcium-magnesium-aluminosilicate(CMAS)was investigated at 1400℃ for 1,10,25,and 50 h to evaluate the coat... The high-temperature interaction of nanostructured Lu2Si2O7 environmental barrier coatings(EBCs)with calcium-magnesium-aluminosilicate(CMAS)was investigated at 1400℃ for 1,10,25,and 50 h to evaluate the coating’s resistance to CMAS corrosion.The results indicate a phase transformation over time,transitioning from Ca2Lu8(SiO4)6O2 apatite and Lu2Si2O7 to solely Lu2Si2O7.The interaction of the Lu2Si2O7 coating with the CMAS melts was divided into three stages based on the corrosion reaction behavior.The delamination cracks were distributed throughout the interface between the Si bond layer and Lu2Si2O7 layer after corroded at 1400℃ for 50 h,signifying coating failure.In addition,the influence of monosilicates,disilicates,and corrosion duration on the recession layer thickness was analyzed by comparing previous reports on RE2SiO5/RE2Si2O7 coatings(RE=Gd,Yb,Lu,Er).Furthermore,the variation in the thermally grown oxide layer thickness in CMAS-corroded Lu2Si2O7 coatings was systematically investigated. 展开更多
关键词 environmental barrier coatings calcium-magnesium-aluminosilicate rare-earth disilicate corrosion thermal grown oxide
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Identification of an(AlNi2)@(YNi3+Cr2O3+Hf)heterogeneous nano core-shell structure and triple oxide barrier in enhancing thermal stability in Fe18Co18Cr18Ni36Al9Y0.5Hf0.5high-entropy coatings 认领 引用
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作者 Zekun Xu Yanhui Hou Guangqiang Li 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第4期1187-1202,I0006,共16页
This study innovatively prepared a high-performance Fe18Co18Cr18Ni36Al9Y0.5Hf0.5high-entropy alloy coating via laser cladding.The coating features a stable face-centered cubic(FCC)solid solution p... This study innovatively prepared a high-performance Fe18Co18Cr18Ni36Al9Y0.5Hf0.5high-entropy alloy coating via laser cladding.The coating features a stable face-centered cubic(FCC)solid solution phase and a unique nanoscale(AlNi2)@(YNi3+Cr2O3+Hf)core-shell structure.The study also proposed a triple oxide barrier design using Cr,Y,and Al,enhancing oxide stability and compactness.The oxide layer forms Cr2O3outer shell and Al2O3+Y2O3bonding layer,effectively blocking oxygen and reducing oxidation rate.This structure promotes Hf distribution and rare earth element activity.The high-entropy alloy with this nano core-shell structure,featuring a Cr2O3outer shell,an Al2O3and Y2O3triple oxide barrier bonding layer and uniformly dispersed rare earth elements,effectively prevents further contact between oxygen and metal,and reduces the oxidation rate. 展开更多
关键词 High-entropy alloys coatings Laser cladding Nano core-shell structure Oxidation resistance Rare earths
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Effects of cerium oxide doping on performance characteristics of nickel-based black coatings 认领 引用
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作者 QIN Zizhou CHEN Liyang +5 位作者 YANG Yumeng MAO Xifeng ZHU Benfeng GUO Weirong WEI Guoying ZHANG Luhan 《电镀与精饰》 CAS 北大核心 2026年第1期25-38,共14页
Black nickel coatings have emerged as a research hotspot in materials science due to their excellent performance and broad application prospects.In this study,nickel-based black coatings were fabricated on low-carbon ... Black nickel coatings have emerged as a research hotspot in materials science due to their excellent performance and broad application prospects.In this study,nickel-based black coatings were fabricated on low-carbon steel substrates via photo-assisted electrodeposition.A systematic investigation was conducted on the effects of cerium ion concentration and nano-ceria(CeO2)particle content in the electrolyte on the coating properties,along with an analysis of the temporal evolution of coating’s corrosion resistance.When the cerium ion concentration in the electrolyte was 0.05 mol/L,the coating exhibited a uniform black appearance with a light absorption rate of 95%,an emissivity of 0.87,maximum impedance,and the lowest corrosion tendency,demonstrating optimal comprehensive performance.The coating prepared with a nano-ceria concentration of 6 g/L in the electrolyte exhibited an emissivity of 0.9,achieved a 5B adhesion grade(ASTM D3359-09),and demonstrated a one-order-of-magnitude reduction in corrosion current density compared to coatings fabricated without nano-ceria in the electrolyte.With prolonged storage time,the coating's impedance slightly increased,leading to improved corrosion resistance. 展开更多
关键词 nickel-based coatings black coatings Ce oxide protective properties
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Nanostructure-dependent colouration efficiency of electrochromic coatings using 0D,1D,and 2D WO3 for smart windows 认领 引用 被引量：2
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作者 Mahnaz Dadkhah Md Julker Nine +2 位作者 Kosala Purasinhala Gurleen Singh Sandhu Dusan Losic 《Nano Materials Science》 EI CAS CSCD 2026年第2期255-263,共9页
Towards the development of highly efficient electrochromic coatings,the crystallinity,morphology(e.g.size and shape)of electrochromic nanomaterials,and their charge insertion capacities play a significant role.Herein,... Towards the development of highly efficient electrochromic coatings,the crystallinity,morphology(e.g.size and shape)of electrochromic nanomaterials,and their charge insertion capacities play a significant role.Herein,we report the structure-dependent colouration effciency in electrochromic coatings based on the use of 0D,1D and 2D tungsten trioxide(WO3)nanostructures.A series of WO3with different nanostructures were prepared and used as working electrodes to fabricate electrochromic devices for smart windows applications.Facile spray coating was applied on fluorine-doped tin oxide(FTO)substrate to make~70%transparent working electrodes to investigate their charge insertion capacities,electrochromic active surface area,and colouration efficiency.Results showed that the 2D WO3nanoflakes displayed the highest diffusion coefficient for the intercalation of 1.52×10-10cm2/s with an increased electrochemical active surface area of 25.10 mF/cm2,a large modulation of optical reflectance(42.63%)with 3.79 s shorter response time for bleaching and a greater colouration efficiency(CE)value(89.29 cm2/C)at 700 nm compared to the CE value for 1D WO3(of 22 cm2/C)and 0D WO3(8 cm2/C).The outcome of this study provides a new insight and valuable contribution to design an efficient electrochromic coating by controlling and optimising the nanostructures of selective electrochromic materials. 展开更多
关键词 Electrochromic devices Smart window WO3 nanostructures Colouration efficiency Spray coating
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Research Status and Prospects of Platinum Group Metal Coatings with High-Temperature Oxidation Resistance 认领 引用
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作者 Ding Chenxi Liu Zhongyu +3 位作者 Fang Zhen Wang Haoxu Lv Biao Hu Zhenfeng 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2026年第2期333-344,共12页
Platinum group metals have high melting points,strong corrosion resistance,stable chemical properties,and low oxygen permeability in high-temperature oxygen-containing environments.As thermal protective coating materi... Platinum group metals have high melting points,strong corrosion resistance,stable chemical properties,and low oxygen permeability in high-temperature oxygen-containing environments.As thermal protective coating materials,they have gained essential applications in the aerospace field and have excellent prospects for application in frontier military fields,such as protecting hot-end components of hypersonic aircraft.This research reviewed the latest research progress of platinum group metal coatings with hightemperature oxidation resistance,including coating preparation techniques,oxidation failure,and alloying modification.The leading preparation techniques of current platinum group metal coatings were discussed,as well as the advantages and disadvantages of various existing preparation techniques.Besides,the intrinsic properties,failure forms,and failure mechanisms of coatings of single platinum group metal in high-temperature oxygen-containing environments were analyzed.On this basis,the necessity,main methods,and main achievements of alloying modification of platinum group metals were summarized.Finally,the future development of platinum group coatings with high-temperature oxidation resistance was discussed and prospected. 展开更多
关键词 platinum group metal coatings preparation technique high temperature oxidation resistance alloying modification
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Synergistic enhancement of corrosion and wear resistance in polyurethane composite coatings using modified molybdenum disulfide and silicon carbide nanocomposites 认领 引用
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作者 Guilin Zhou Hui Nan +6 位作者 Lijun Yang Jingchuan Wang Ruizhu Yang Fengsheng Qu Hongmin Wang Hong Lin Pan Yang 《Particuology》 SCIE EI CAS CSCD 2026年第7期25-35,共11页
Polyurethane(PU)coatings,extensively used for metal surface protection,face limitations in harsh environments due to their insufficient wear resistance.A novel PU composite coating system,synergistically reinforced wi... Polyurethane(PU)coatings,extensively used for metal surface protection,face limitations in harsh environments due to their insufficient wear resistance.A novel PU composite coating system,synergistically reinforced with modified molybdenum disulfide(MoS2)and silicon carbide(SiC)nanoparticles,was developed to enhance both corrosion and wear resistance.By modifying MoS2 via the silane coupling agent(KH560)-polydopamine(PDA)cross-linking,a dense network was formed to block corrosive agents,while dispersed SiC nanoparticles optimized stress distribution and reduced surface friction.The composite coating containing 10 wt%SiC(KPM-10S/PU)demonstrates comprehensive performance,exhibiting 342 times higher impedance compared to the pure PU,79%reduction in the wear loss volume against 316L steel,and outstanding resistance in HNO3 and salt spray tests.Although 15 wt%SiC(KPM-15S/PU)achieved the highest initial impedance and the lowest friction coefficient,excessive SiC compromised matrix compatibility,increasing corrosion vulnerability.This work elucidates the corrosion blocking and wear inhibition reinforcement mechanism of MoS2-SiC composite,and provides a scalable strategy for designing multifunctional coatings in demanding environments of marine infrastructure. 展开更多
关键词 Polyurethane composite coatings Synergistic enhancement Molybdenum disulfide Silicon carbide Corrosion-wear resistance
Biomass-Based Antifouling Coatings:Mechanisms,Materials,Applications,and Emerging Sustainable Strategies 认领 引用
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作者 Yudi Wei Dominik Maršik +2 位作者 Petter Paulsen Thoresen Leonidas Matsakas Yijun Shi 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第9期213-259,共47页
Biofouling remains a critical challenge across marine,medical,and industrial sectors,driving the need for sustainable and eco-friendly antifouling coatings.Biomass-based materials,including lignin,tannins,betaines,pol... Biofouling remains a critical challenge across marine,medical,and industrial sectors,driving the need for sustainable and eco-friendly antifouling coatings.Biomass-based materials,including lignin,tannins,betaines,polysaccharides,and proteins,have emerged as promising candidates due to their biocompatibility,biodegradability,and diverse antifouling mechanisms.These materials inhibit biofouling through mechanisms such as hydration layer formation,surface charge repulsion,hydrophobic foul-release,and biocidal effects,offering effective resistance to protein adsorption,bacterial attachment,and biofilm formation.This review provides a comprehensive overview of recent advancements in biomass-based antifouling coatings,focusing on their antifouling mechanisms,synthesis methods,and applications.Key challenges concerning mechanical durability and scalability are explored,along with potential approaches to enhance the development of sustainable antifouling technologies. 展开更多
关键词 Biomass-based antifouling coatings Antifouling mechanisms Crosslinking strategies Marine and biomedical applications
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Dual-layer Design of TaC Coatings on Graphite by Laser Chemical Vapor Deposition for Improving the Thermal Shock Resistance 认领 引用
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作者 SHEN Yeqin ZHANG Song +6 位作者 HUANG Wei ZHANG Chitengfei WANG Chongjie GUO Han LI Cuicui YANG Meijun TU Rong 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2026年第4期938-942,共5页
A dual-layer TaC coating including porous TaC(p-TaC)inner layer and dense TaC(d-TaC)outer layer was in-situ fabricated by laser chemical vapor deposition(LCVD)for improving the thermal shock resistance.The p-TaC inner... A dual-layer TaC coating including porous TaC(p-TaC)inner layer and dense TaC(d-TaC)outer layer was in-situ fabricated by laser chemical vapor deposition(LCVD)for improving the thermal shock resistance.The p-TaC inner layer exhibits a(111)preferred orientation and characterizes a network of trunks and branches attributed to the“shadow effect”,while the d-TaC outer layer displays a random orientation with a columnar crystal structure.This dual-layer design effectively mitigates CTE mismatch and alleviates thermal stress.Consequently,the coated graphite can withstand more than 10 cycles of thermal shock test from room temperature(RT)to 1400℃with no stress cracking.This work provides a novel strategy for fabricating functional coatings on graphite with excellent thermal shock resistance. 展开更多
关键词 laser chemical vapor deposition(LCVD) TaC coatings thermal shock resistance microstructure carbon materials
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Research on the densification behavior,microstructure evolution and interface optimization of cold-sprayed Ti6Al4V coatings 认领 引用
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作者 Jichao Liang Bowen Liu +2 位作者 Yanliang Zhu Danyang Liu Xin Lu 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2026年第4期1254-1268,共15页
To address the problems of high porosity and poor adhesion strength existing in Ti6Al4V coatings prepared by cold spraying technology,the strategy of in-situ laser and micro-forging assistance for cold spraying was pr... To address the problems of high porosity and poor adhesion strength existing in Ti6Al4V coatings prepared by cold spraying technology,the strategy of in-situ laser and micro-forging assistance for cold spraying was proposed in this study.The Ti6Al4V coatings with high relative density and high adhesion strength were successfully prepared.The microstructure,interfacial strengthening mechanism,bending properties,and failure behavior of the coatings were systematically analyzed.With N2used as the propelling gas,under the spraying parameters of gas temperature at 800℃and gas pressure at 4 MPa,the Ti6Al4V coatings have achieved a relative density of 99.77%and an adhesion strength exceeding 68.48 MPa.Severe plastic deformation was observed in the Ti6Al4V powder within the coatings.The coatings exhibited no evident porosity defects,and a continuous,dense diffusion layer with a thickness of 5-10μm was formed between the coating and substrate,primarily composed ofα-Ti,β-Ti,TiN,TiC,FeTi,and Fe2Ti phases.The metallurgical bonding between the coating and substrate significantly enhances the adhesion strength of the coatings.The bending yield strength and flexural strength of the coating-protected Q235 substrate are 427.37 and 770.76 MPa,respectively.Compared with the uncoated Q235 substrate,the bending yield strength and flexural strength of the coating-protected Q235 substrate(with the coatings on the bottom)increase by 41.58%and 27.00%,respectively,demonstrating that the introduction of the coatings can significantly enhance the flexural performance of the substrate.The fracture morphology of the Ti6Al4V coatings after the bending test exhibits ductile fracture characteristics,which accounted for the significant improvement in bending yield strength.The interfacial fracture between the coating and substrate shows quasicleavage characteristics,and the high bonding strength at the coating-substrate interface contributes to the enhancement of the substrate's flexural strength.Thus,the in-situ first-layer laser-assisted and subsequent-layer micro-forging-assisted cold spraying has provided a feasible solution for the preparation of high-performance protective titanium-based coatings. 展开更多
关键词 in-situ laser-micro forging cold spraying Ti6Al4V coatings adhesion strength flexural properties
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Unveiling Temperature-Dependent Corrosion Behaviors of FeNiCrMoCBY Amorphous Alloy Coatings In Spent-Fuel Storage Environments 认领 引用
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作者 Yang Lv Jing Di +10 位作者 Nan Wang Hongge Li Qiang Li Houyi Bai Jinbiao Huang Zihang Wang Zehao Li Hongbo Fan Zhiliang Ning Jianfei Sun Yongjiang Huang 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期868-881,共14页
A comparative study was performed to elucidate the temperature‑dependent corrosion kinetics and the semiconductor/structural characteristics of the passive film formed on Fe40Ni7Cr17Mo12C13B9Y2(at... A comparative study was performed to elucidate the temperature‑dependent corrosion kinetics and the semiconductor/structural characteristics of the passive film formed on Fe40Ni7Cr17Mo12C13B9Y2(at%) amorphous alloy coatings. The results indicate that increasing temperature accelerates the corrosion kinetics of the coating. Compared with the anodic reaction, the cathodic reaction exhibits higher temperature sensitivity, resulting in a positive shift of corrosion potential(Ecorr) toward a more noble potential. Typical p‑n type semiconducting behavior of the passive film persists at all tested temperatures. With increasing temperature, the compact inner layer of the passive film becomes thinner whereas the porous outer layer thickens markedly, resulting in an overall increase in film thickness from 3.86 to 5.36nm. Meanwhile, elevated temperature increases defect density and reduces the electron work function of passive film from 4.44 to 4.34eV, thereby diminishing the corrosion resistance of the obtained coatings. This work deepens the understanding of the temperature‑dependent corrosion behavior in Fe‑based amorphous coatings and provides valuable theoretical guidance for their applications in nuclear industry. 展开更多
关键词 corrosion kinetics Fe‑based amorphous alloy coatings passive film temperature variation
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Chemistry and potential applications of multifunctional polymer nanocomposite coatings:A review 认领 引用
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作者 A.M.FADL 《Journal of Central South University》 SCIE EI CAS CSCD 2026年第1期1-49,共49页
Polymer nanocomposite coatings(PNCCs)are unprecedented generation of coatings engineered for displaying inexpensive and brilliant functional surface coatings with eminent corrosion guard,mechanical resistance,antimicr... Polymer nanocomposite coatings(PNCCs)are unprecedented generation of coatings engineered for displaying inexpensive and brilliant functional surface coatings with eminent corrosion guard,mechanical resistance,antimicrobial,chemical durability,electrical insulation,and UV aging features.Due to their widely anticipation in petroleum,applications in building,conveyance,aerospace,electronics,automobiles and energy,these multi-functional coatings have a tremendous leverage in human life,all technological and scientific subjects.Numerous applications have been made for multilateral polymers like polyurethane(PU),epoxy(EP),polyaniline(PANI)conductive polymer,polypyrrole(PPy),and etc,on various metallic surfaces especially,carbon steel substrate owing to their excellent resistance properties.Practically,nanomaterials can possess potential in the all-interdisciplinary domains of materials science and engineering,chemical and physical sciences,biological and health sciences.As known,the designed polymer nanocomposite coating paradigm is fundamentally constituted from polymer or resin as a vehicle and inorganic nanofillers(nanoparticles and nanocomposites).Some commercialized and excessively employed nanocontainers in polymer nanocomposite coating formulations,like ZnO,TiO2,carbon nanotubes(CNTs),clay,SiO2,Al2O3,graphene,GO,CeO2,ZrO2,FeTiO3,etc were discussed.The current review covered the chemistry and potential applications of the largest utilized multifunctional polymer nanocomposite coatings such as EP,PU and other considerable PNCCs.Lately,a titanic attention was made for epoxy nanocomposites because of their distinct physicochemical characteristics,which result from the combined qualities of the nanoparticles and polymer material unity.In addition,the author incorporated some of his scientific contributions in this area represented in construction of innovative functional polymer nanocomposites for a variety of uses with high economic,industrial impacts and future orientation.Furthermore,some newly published applications of polymer nanocomposite coatings were incorporated and discussed. 展开更多
关键词 polymer nanocomposite coatings(PNCCs) multifunctional properties corrosion mitigation mechanical resistance chemical durability antimicrobial UV aging epoxy(EP) polyurethane(PU) nanocontainers economic and industrial potentials
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