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ZrO2-CPS/ZrO2 graded composite ceramics with high osteoinductivity for dental implants fabricated by stereolithography

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Ceramics International 2025年第16期51卷 21900-21912页

作者： Wu, Jiaxin Li, Zhi Meng, Xingliang Cheng, Bo Yang, Jing Li, Binbin Wang, Xinyu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen Valley Foshan528200 China Hainan Institute Wuhan University of Technology Sanya572000 China Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan430070 China School of Foreign Languages Wuhan University of Technology Wuhan430070 China Department of Stomatology Zhongnan Hospital of Wuhan University Wuhan430060 China

Promoting mechanical strength and osteoinductivity properties is crucial for dental implants materials. Herein, we synthesized silicocarnotite (CPS) powder via a hydrothermal method, and mixed it with zirconia to create a composite material for preparing four slurries: xCPS-(1−x)ZrO2 (x = 0, 1/6, 1/3, and 1/2 vol%). The optimal printing parameters for each slurry were investigated. Following the printing of the slurries, debinding was performed on them in the temperature range of 25 °C–600 °C in nitrogen atmosphere and 600 °C–1000 °C in air atmosphere, respectively, followed by sintering at 1350 °C for 2 h. The graded zirconia-based composite ceramics prepared using stereolithography (SLA) exhibited excellent mechanical properties, including a flexural strength of 742.37 ± 22.52 MPa, Vickers hardness of 7.29 ± 0.15 GPa, fracture toughness of 5.34 ± 0.29 MPa m1/2, and a relative density of 96.3 %. Compared with zirconia ceramics, the graded composite ceramics displayed higher surface roughness. The graded composite ceramics degraded and released Ca, Si, and P ions, promoting MC3T3-E1 cells proliferation, adhesion, and osteogenic differentiation. These findings suggest that ZrO2-CPS/ZrO2 graded composite ceramics synthesized via SLA holds great potential as dental implants with high osteoinductivity. © 2025

关键词： Fracture toughness

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Copper Ions Removal from Wastewater by Electrocoagulation Using Cement-based Cathode Plates

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Journal of Wuhan University of technology(materials Science) 2023年第2期38卷 387-393页

作者： YOU Song WU Jing WANG Shizhe WANG Wei LI Qiong ZAHNG Ganggang DING Qinjun WANG Luoxin College of Materials Science and Engineering State Key Laboratory of New Textile Materials&Advanced Processing TechnologyWuhan Textile UniversityWuhan430200China Department of Logistics Support Wuhan University of TechnologyWuhan430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan430070China

The present work uses PEO solution to well disperse carbon fiber and identifies percolation thresholds of carbon fiber and carbon black which are used as conductive *** resultant cathode plates have an average compressive strength of 27.3 MPa and flexural strength of 29.09 MPa,which demonstrate excellent mechanical *** Cu^(2+)removal efficiency was measured at different current densities in EC process with cement-based cathode plate,while the voltage changes were *** results showed that the cement-based cathode plate operated stably and achieved 99.7%removal of 1 L of simulated wastewater with a Cu^(2+)concentration of 200 ppm at a current density of 8 m A/cm^(2)for 1 *** of floc and tested cathode plates,SEM and EDS analyses,and repeatability testing of the tested plates demonstrate the reusability of the plates,proving that cement-based plates can effectively replace metal cathode plates,reduce the cost of EC and improve the applicability of EC devices.

关键词： electrocoagulation cathode plate cement-based conductive materials copper ions repeatability

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Crystallographic micro-mechanism of faceted crack initiation in near-αtitanium alloy Ti6321 under room-temperature fatigue and dwell fatigue loadings

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材料科学技术（英文版） 2025年第2期205卷 109-126页

作者： Wenyuan Zhang Qiaonan Shu Jiangkun Fan Panpan Fan Xiangyi Xue Peng Jiang Minjie Lai Bing Tang Zhiqian Liao Hongchao Kou Jinshan Li State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072China National & Local Joint Engineering Research Center for Precision Thermoforming Technology of Advanced Metal Materials Xi'an 710072China Chongqing Innovation Center Northwestern Polytechnical UniversityChongqing 401135China Luoyang Ship Material Research Institute Luoyang 471000China

Crack initiation mechanism of dwell fatigue has always been a key problem in rationalizing the dwell effect,and it is not completely understood *** study conducted stress-controlled low-cycle fatigue and dwell fatigue tests on Ti-6Al-3Nb-2Zr-1Mo alloy with bimodal microstructure to reveal its microstruc-tural characteristics and crack initiation *** study demonstrated that the faceted primaryα nodules located near the specimen surface acted as crack initiation sites during both fatigue and dwell fatigue *** trace analysis revealed that faceted cracking occurred at(0001)basal plane with the maximum Schmid factor value through a special cracking mode referred to as(0001)twist boundary *** criteria of parameters C1 and C2 were proposed based on experimental observation and molecular dynamics simulations,which well identify candidates for(0001)twist boundary crack *** demonstrated that grain pairs combining a moderately high Schmid factor for basal slip and a well-orientated Burgers vector in the out-of-surface plane was the preferable location for surface(0001)twist-boundary crack initiation,and grain pairs combining a high Schmid factor for basal slip and a high normal stress on basal plane are perfect candidates for subsurface *** on this,phenomeno-logical models are proposed to explain the surface(0001)twist-boundary cracking mechanism from the perspective of surface extrusion-intrusion-induced micro-notches.

关键词： Titanium alloy Dwell fatigue Facet Fatigue crack initiation Crystallographic orientation

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Advances in the study of HOR reaction mechanisms under alkaline conditions

Advanced Sensor and Energy Materials

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advanced Sensor and Energy materials 2024年第1期3卷 23-38页

作者： Yuru Liao Shengchen Wang Yifan Zhang Yue Zhang Yun Gao Xueqin Mu Suli Liu Dingsheng Wang Zhihui Dai School of Chemistry and Molecular Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology InstitutionWuhan 430070China Engineering Research Center of Advanced Rare Earth Materials Department of ChemistryTsinghua UniversityBeijing100084China

Hydrogen energy is an important energy carrier,which is an ideal choice to meet energy demand and reduce harmful gas *** green recycling of hydrogen energy depends on water electrolysis and hydrogen fuel cells,which involves hydrogen oxidation reaction(HOR)and hydrogen evolution reaction(HER).The activity of HER/HOR in alkaline electrolyte,however,exhibits a significantly lower magnitude(2–3 orders)compared to that observed in an acidic medium,which hinders the development of alkaline water electrolysis and alkaline membrane fuel ***,comprehending the characteristics of HOR/HER activity in alkaline electrolytes and elucidating its underlyingmechanismis a prerequisite for the designof advanced *** on this background,this reviewwill briefly summarize the explanations and controversies about the basic HOR mechanism,including bifunctional mechanismand hydrogen binding energy ***,the crucial affecting factors of theHOR kinetics,such as dband center theory,interfacial water recombination,alkali metal cations and electronic effects,are ***,based on the above theories,the design principle,catalytic performance,and latest progress ofHOR electrocatalysts are *** outlook and future research perspectives of advanced catalysts for hydrogen energy recycling are *** reviewis helpful to understand the latest development ofHORmechanismand design cost-effective and high-performance HOR electrocatalysts towards the production of clean renewable energies.

关键词： Hydrogen oxidation reaction(HOR) Electrocatalytic mechanism Hydrogen binding energy theory(HBE) Bifunctional theory

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金属纳米伴侣界面金属原子对淀粉样蛋白纤维化的调控作用

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Science China materials 2024年第7期67卷 2345-2354页

作者：李虎高冠斌余良翀张子俊张斌邓昱周慕庆雪沈雷孙涛垒 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases School of ChemistryChemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China

合成具有生物分子伴侣功能的金属纳米伴侣作为调节蛋白质构象的候选物具有良好的应用前景.尽管对金属纳米伴侣已有广泛研究,但其分子中界面金属原子对蛋白质构象的调控作用及其机制尚不清楚,这严重阻碍了对高性能金属纳米伴侣的开发.本... 详细信息

合成具有生物分子伴侣功能的金属纳米伴侣作为调节蛋白质构象的候选物具有良好的应用前景.尽管对金属纳米伴侣已有广泛研究,但其分子中界面金属原子对蛋白质构象的调控作用及其机制尚不清楚,这严重阻碍了对高性能金属纳米伴侣的开发.本研究以相同配体巯基丙酸(MPA)修饰的金纳米团簇Au_(25)为模型,通过界面掺杂金属原子(Cu、Cd、Ag)精准制备出了三种单原子掺杂的纳米伴侣,分别是Au_(24)Cu_(1)、Au_(24)Cd_(1)和Au_(24)Ag_(1),系统地研究了Au_(25)、Au_(24)Cu_(1)、Au_(24)Cd_(1)和Au_(24)Ag_(1)四种纳米伴侣对Aβ40折叠与纤维化的调控作用.全原子分子动力学模拟结果表明,界面掺杂金属原子(Cu、Cd、Ag)可通过范德华力和静电相互作用等弱相互作用影响与之接触的Aβ40单体的折叠.等温滴定量热分析结果进一步表明,Au_(24)Cu_(1)与Aβ40的相互作用分别是Au_(24)Cd_(1)、Au_(24)Ag_(1)和Au_(25)的1.76、2.09、16.67倍.这些不同的相互作用会导致金属纳米伴侣对Aβ折叠与纤维化的不同调节作用,四种金属纳米伴侣抑制Aβ折叠与纤维化效率依次为Au_(24)Cu1>Au_(24)Cd_(1)>Au_(24)Ag_(1)>Au_(25).本文提供了对金属纳米团簇界面金属原子如何发挥作用的微观分子见解,并为通过操纵界面金属原子来定制金属纳米伴侣提供了基础研究数据.

关键词： customizing nano-chaperone nano-interface gold-nanoclusters peptide amyloidosis

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Bi nanoparticles encapsulated in nitrogen-doped carbon as a long-life anode material for magnesium batteries

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Journal of Magnesium and Alloys 2023年第11期11卷 4181-4188页

作者： Junjun Wang Ruohan Yu Jianxiang Wang Juncai Long Fan Qiao Lei Zhang Guanjie He Qinyou An Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Christopher Ingold Laboratory Department of ChemistryUniversity College London20 Gordon StreetLondon WC1H 0AJUnited Kingdom of Great Britain and Northern IrelandUnited Kingdom Hubei Longzhong Laboratory Wuhan University of Technology(Xiangyang Demonstration Zone)Xiangyang 441000China

Bismuth has garnered significant interest as an anode material for magnesium batteries(MBs) because of its high volumetric specific capacity and low working potential. Nonetheless, the limited cycling performance(≤100 cycles) limits the practical application of Bi as anode for MBs. Therefore, the improvement of Bi cycling performance is of great significance to the development of MBs and is also full of challenges. Here, Bi nanoparticles encapsulated in nitrogen-doped carbon with single-atom Bi embedded(Bi@NC) are prepared and reported as an anode material for MBs. Bi@NC demonstrates impressive performance, with a high discharge capacity of 347.5 mAh g^(-1) and good rate capability(206.4 mAh g^(-1)@500 mA g^(-1)) in a fluoride alkyl magnesium salt electrolyte. In addition, Bi@NC exhibits exceptional long-term stability, enduring 400 cycles at 500 mA g^(-1). To the best of our knowledge, among reported Bi and Bi-based compounds for MBs, Bi@NC exhibits the longest cycle life in this work. The magnesium storage mechanism of Bi@NC is deeply studied through X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. This work provides some guidance for further improving the cycling performance of other alloy anodes in MBs.

关键词： Magnesium batteries Bismuth 3D tomography reconstruction Magnesium alloy Single-atom

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Well-structured 3D channels within GO-based membranes enable ultrafast wastewater treatment

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Nano Research 2023年第2期16卷 1826-1834页

作者： Huaqiang Fu Zhe Wang Peng Li Wei Qian Zixin Zhang Xin Zhao Hao Feng Zhugen Yang Zongkui Kou Daping He School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-Microwave Technology and Application School of ScienceWuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Water Energy and EnvironmentCranfield UniversityCranfield MK430ALUK

Graphene oxide(GO)-based membranes have been widely studied for realizing efficient wastewater treatment,due to their easily functionalizeable surfaces and tunable interlayer ***,the irregular structure of water channels within GO-based membrane has largely confined water permeance and prevented the simultaneously improvement of purification ***,we purposely construct the well-structured three-dimensional(3D)water channels featuring regular and negatively-charged properties in the GO/SiO_(2)composite membrane via in situ close-packing assembly of SiO_(2)nanoparticles onto GO *** regular 3D channels can improve the water permeance to a record-high value of 33,431.5±559.9 L·m^(−2)·h−1(LMH)bar−1,which is several-fold higher than those of current state-of-the-art GO-based *** further demonstrate that benefiting from negative charges on both GO and SiO2,these negatively-charged 3D channels enable the charge selectivity well toward dye in wastewater where the rejection for positive-charged and negative-charged dye molecules is 99.6%vs.7.2%,*** 3D channels can also accelerate oil/water(O/W)separation process,in which the O/W permeance and oil rejection can reach 19,589.2±1,189.7 LMH bar−1 and 98.2%,*** present work unveils the positive role of well-structured 3D channels on synchronizing the remarkable improvement of both water permeance and purification performance for highly efficient wastewater treatment.

关键词： graphene oxide membranes wastewater treatment water channels charge-selectivity

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S-scheme ZnO/WO3 heterojunction photocatalyst for efficient H2O2 production

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Journal of materials Science & technology 2022年第29期124卷 193-201页

作者： Zicong Jiang Bei Cheng Yong Zhang S.Wageh Ahmed A.Al-Ghamdi Jiaguo Yu Linxi Wang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430074China Department of Physics Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia

Designing highly efficient photocatalyst for hydrogen peroxide(HO)production is an ideal strategy to avoid the shortcomings of traditional HOproduction and to realize the conversion of solar energy to chemical *** this work,a step-scheme(S-scheme)heterojunction photocatalyst composed of Zn O and WOis carefully prepared by hydrothermal and calcination method for efficient photocatalytic *** ZW30 composite photocatalysts exhibit enhanced activity with the highest HO-production rate of 6788μmol *** results show that the photocatalytic HOproduction process is dominated by a direct two-electron Oreduction *** enhanced photocatalytic HO-production activity is attributed to the formation of interfacial internal electric field(IEF)in the S-scheme heterojunction,which boosts the spatial separation of charge carriers and enables electrons with the strongest reduction power to participate in *** work provides an in-depth insight of the great advantages of S-scheme heterojunction in photocatalytic HOproduction.

关键词： Photocatalysis Hydrogen peroxide Step-scheme heterojunction O2 reduction Zinc oxide

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Swarming Responsive Photonic Nanorobots for Motile-Targeting Microenvironmental Mapping and Mapping-Guided Photothermal Treatment

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Nano-Micro Letters 2023年第9期15卷 205-223页

作者： Luolin Li Zheng Yu Jianfeng Liu Manyi Yang Gongpu Shi Ziqi Feng Wei Luo Huiru Ma Jianguo Guan Fangzhi Mou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China School of Materials and Microelectronics Wuhan University of TechnologyWuhan 430070People’s Republic of China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070People’s Republic of China School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070People’s Republic of China

Micro/nanorobots can propel and navigate in many hard-to-reach biological environments,and thus may bring revolutionary changes to biomedical research and ***,current MNRs lack the capability to collectively perceive and report physicochemical changes in unknown *** we propose to develop swarming responsive photonic nanorobots that can map local physicochemical conditions on the fly and further guide localized photothermal *** RPNRs consist of a photonic nanochain of periodically-assembled magnetic Fe_(3)O_(4)nanoparticles encapsulated in a responsive hydrogel shell,and show multiple integrated functions,including energetic magnetically-driven swarming motions,bright stimuli-responsive structural colors,and photothermal ***,they can actively navigate in complex environments utilizing their controllable swarming motions,then visualize unknown targets(e.g.,tumor lesion)by collectively mapping out local abnormal physicochemical conditions(e.g.,pH,temperature,or glucose concentra-tion)via their responsive structural colors,and further guide external light irradiation to initiate localized photothermal *** work facilitates the development of intelligent motile nanosensors and versatile multifunctional nanotheranostics for cancer and inflam-matory diseases.

关键词： Micro/nanorobots Collective behaviors Responsive photonic crystals On-the-fly sensing Photothermal therapy

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Microstructure recognition of steels by machine learning based on visual attention mechanism

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Journal of Iron and Steel Research International 2024年第4期31卷 909-923页

作者： Xing-yu Chen Lin Cheng Cheng-yang Hu Yu-peng Zhang Kai-ming Wu The State Key Laboratory of Refractories and Metallurgy Hubei Province Key Laboratory of Systems Science on Metallurgical ProcessingInternational Research Institute for Steel TechnologyCollaborative Center on Advanced SteelsWuhan University of Science and TechnologyWuhan 430081HubeiChina Metals Valley and Band(Foshan)Metallic Composite Materials Co. Ltd.Foshan 528000GuangdongChina

U-Net has achieved good performance with the small-scale datasets through skip connections to merge the features of the low-level layers and high-level layers and has been widely utilized in biomedical image segmentation as well as recent microstructure image segregation of the *** representative visual attention mechanism modules,named as squeeze-and-excitation networks,convolutional block attention module,and extended calibration algorithm,were intro-duced into the traditional U-Net architecture to further improve the prediction *** is found that compared with the original U-Net architecture,the evaluation index of the improved U-Net architecture has been significantly improved for the microstructure segmentation of the steels with the ferrite/martensite composite microstructure and pearlite/ferrite composite microstructure and the complex martensite/austenite island/bainite microstructure,which demonstrates the advantages of the utilization of the visual attention mechanism in the microstructure *** reasons for the accuracy improvement were discussed based on the feature maps analysis.

关键词： Microstructure recognition-Steel Machine learning Visual attention mechanism Visualization

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