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Novel twinned Al3Sc dendrites in as-casted Al-Sc alloy

Rare Metals 2023年第3期42卷 838-843页

作者： Xing-Quan Wang Yu Wang Qian Jia Zhao-Chong Ding Jin-Jiang He Song-Xiao Hui State Key Laboratory of Nonferrous Metals and Processes GRIMAT Engineering Institute Co.Ltd.Beijing 101407China GRIKIN Advanced Material Co. Ltd. Beijing Technology Research Center for Sputtering Target Material Engineering of High Pure Metals

Al-Sc alloys with high Sc contents are served as sputtering targets for making high-performance piezoelectric *** micro structure of these alloys would affect the sputtering process and the final quality of the functional *** this study,the microstructure in as-c as ted Al-20%Sc(in atomic ratio)alloys is characterized and the feathery Al3Sc grains with twin relationships are reported for the first *** crystallographic features of twined structures and growth directions are quantitatively analyzed by electron backscatter diffraction(EBSD)technique.

关键词： Al3Sc alloys twin

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Microstructure and Wear Resistance Properties of FeCrAl-Cu(Ni,Co)HEA Coatings Synthesized by Laser Remelting

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稀有金属材料与工程 2024年第10期53卷 2747-2754页

作者： Ma Kai Feng Li Zhao Yanchun Liu Jianjun School of Materials Science and Technology Lanzhou University of TechnologyLanzhou 730050China State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of TechnologyLanzhou 730050China

FeCrAlCu,FeCrAlCuNi,FeCrAlCuCo,and FeCrAlCuNiCo high-entropy alloy(HEA)coatings were synthesized on the surface of 45#steel through cold spraying-assisted laser *** reveal that all four HEA coatings are composed of face-centered cubic+body-centered cubic ***,the microstructure of the coatings consists of columnar *** the simultaneous addition of both Ni and Co elements,the columnar dendritic grains are gradually refined in the ***,the FeCrAlCuNiCo HEA coating exhibits excellent friction performance with the coating hardness of 5847.7 MPa,friction factor of 0.45,and wear rate of 3.72×10^(−5) mm^(3)·N^(−1)·m^(−1).The predominant wear mechanism is the adhesive wear and abrasive wear.

关键词： laser remelting high-entropy alloy coating wear mechanism abrasion resistance

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Progress on nanostructured gel catalysts for oxygen electrocatalysis

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Nano Research 2022年第12期15卷 10343-10356页

作者： Huan Yang Huilin Hu Chenfeng Xia Feng You Junlong Yao Xueliang Jiang Bao Yu Xia Wuhan Institute of Technology Hubei Key Laboratory of Plasma Chemistry and Advanced MaterialsSchool of Materials Science and EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationWuhan430205China Key Laboratory of Material Chemistry for Energy Conversion and Storage(Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service FailureWuhan National Laboratory for OptoelectronicsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology(HUST)Wuhan430074China

Driven by the serious ecological problems,it is urgent to explore high-efficiency sustainable energy *** electrocatalysis acts as important half-reactions in the emerging electrochemical energy techniques including electrolysis and *** composites exhibit the merits of rich porous,superior hydrophilic,and large specific surface area,which can significantly improve the electrolyte penetration and boost the kinetics process of oxygen *** this invited contribution,the advances and challenges of a novel gel materials for oxygen electrocatalysis are *** from the structure-activity-performance relationship of gel materials,synthetic routes of nanostructured gel materials,namely,radical polymerization,sol-gel method,hydrothermal/solvothermal reactions,and ligand-substitution method,are ***,the gel composites are divided into polymer-based,metal-based,and carbon-based materials in turn,and their applications in oxygen electrocatalysis are discussed *** the end,the perspective and challenges for advanced gel oxygen electrocatalysts are proposed.

关键词： oxygen electrocatalysis gel materials polymer metal carbon

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Health monitoring by optical fiber sensing technology for rechargeable batteries

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eScience 2024年第1期4卷 79-95页

作者： Yi Zhang Yanpeng Li Zezhou Guo Jianbo Li Xiaoyu Ge Qizhen Sun Zhijun Yan Zhen Li Yunhui Huang State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanHubei430074China School of Optical and Electronic Information National Engineering Laboratory for Next Generation Internet Access SystemWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China Henan Key Laboratory of Laser and Opto-electric Information Technology School of Electrical and Information EngineeringZhengzhou UniversityZhengzhouHenan45001China

With the proposal of a“smart battery,”real-time sensing by rechargeable batteries has become progressively more important in both fundamental research and practical ***,many traditional sensing technologies suffer from low sensitivity,large size,and electromagnetic interference problems,rendering them unusable in the harsh and complicated electrochemical environments of *** optical sensor is an alternative approach to realize multiple-parameter,multiple-point measurements ***,it has garnered significant *** analyzing these measured parameters,the state of interest can be decoded to monitor a battery's *** review summarizes current progress in optical sensing techniques for batteries with respect to various sensing parameters,discussing the current limitations of optical fiber sensors as well as directions for their future development.

关键词： Optical fiber sensing Rechargeable battery Real-time sensing Health monitoring

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Chiral effect on Aβ fibrillation from molecular-scale to nanoscale

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Nano Research 2022年第7期15卷 6721-6729页

作者： Guanbin Gao Guowei Zhu Liangchong Yu Zijun Zhang Ting Zhang Xinglin Liu Cheng Zhang Lin Zhou Taolei Sun State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China

β-Amyloid(Aβ)peptide fibrillation,one of the characteristic hallmarks of Alzheimer’s disease,is determined by many interfacial physical-chemical factors,e.g.,charge,hydrophobicity,*** extensive research,chiral effect in different-scales on the fibrillation process of Aβremains ***,molecular-scale,sub-nanoscale,and nanoscale chiral-structures were constructed to investigate their chiral effect on the fibrillation of Aβ_(40) *** structures from molecular-scale to nanoscale were obtained from the different periods of the chemosynthesis process of chiral ZnS quantum-dots(QDs),confirmed by real-time monitoring of circular dichroism *** molecular-scale,both L-penicillamine(L-P)and D-P ligands accelerated the fibrillation of Aβ_(40),and the speed-up effect of D-P was slightly stronger than *** sub-nanoscale,both two chiral Zncomplexes(L-Zn and D-Zn)induced the agglomeration of Aβ_(40) without chirality *** nanoscale,both L-ZnS and DZnS QDs inhibited the fibrillation of Aβ_(40),and the inhibition effect of L-ZnS was notably better than that of ***-situ kinetics experiments of Aβ_(40) co-incubated with two chiral QDs demonstrated that L-ZnS completely prevents the misfolding of Aβ_(40) from unfolded toβ-sheet,while D-ZnS cannot achieve *** site-replacement experiments and simulation results revealed the underlying molecular mechanisms of the different inhibition efficiency of chiral ZnS QDs on Aβ_(40) fibrillation,which mainly attribute to the stereoselectivity interaction between the chiral ligands of ZnS QDs and electro-positive amino acid residues(R5,K16,and K28)of Aβ_(40).This work offers a microscopic insight of chiral effect on Aβfibrillation exerted by structures in different-scales,and provides a guidance in precise regulation of protein fibrillation via manipulating chiral structures in different-scales.

关键词： chirality molecular-scale sub-nanoscale nanoscale Aβ_(40) fibrillation

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Smart design A_(2)Zr_(2)O_(7)-type high-entropy oxides through lattice-engineering toughening strategy

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npj Computational materials 2024年第1期10卷 249-258页

作者： Ying Zhang Ke Ren William Yi Wang Xingyu Gao Jun Wang Yiguang Wang Haifeng Song Xiubing Liang Jinshan Li State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’anShaanxiChina Innovation Center NPU ChongqingChongqingChina Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijingChina Laboratory of Computational Physics Institute of Applied Physics and Computational MathematicsBeijingChina Defense Innovation Institute Academy of Military Sciences of the PLA of ChinaBeijingChina

The fracture toughness(KIC)of high-entropy oxides(HEOs)is critically important for several applications,but identification and quantification of the toughening mechanisms resulting from latticeengineering/distortion in HEOs is ***,based on the classic Griffith criteria,a physicsdriven theoretical equation combined with a knowledge-enabled data-driven machine-learning algorithm is proposed to predict the KIC and elucidate the toughening mechanisms of A_(2)Zr_(2)O_(7)-type *** with experimental verification,our proposed model is applied to a dataset comprising 41208(nRE1/n)_(2)Zr_(2)O_(7)(n=2~7)HEOs,considering the contributions of the intrinsic brittleness and increased toughness due to the local lattice distortion(LLD),thereby addressing the challenge of accurate estimating KIC in complex HEOs using the rule of *** crack tip propagation,the interaction mechanism of cations induces stress fields and charge variations of LLD and dissipates crack energy,thus,to yield the crack tip softening and the elastic shielding and to enhance the toughness of HEOs.

关键词： toughness crack lattice

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Metabolism and metabolomics in senescence, aging, and age-related diseases: a multiscale perspective

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Frontiers of Medicine 2025年第2期19卷 200-225页

作者： Ziyi Wang Hongying Zhu Wei Xiong Center for Advanced Interdisciplinary Science and Biomedicine of IHM Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230027China Anhui Province Key Laboratory of Biomedical Imaging and Intelligent Processing Institute of Artificial IntelligenceHefei Comprehensive National Science CenterHefei 230088China CAS Key Laboratory of Brain Function and Disease Hefei 230026China Anhui Province Key Laboratory of Biomedical Aging Research Hefei 230026China

The pursuit of healthy aging has long rendered aging and senescence ***-related ailments,such as cardiovascular diseases,diabetes,and neurodegenerative disorders,pose significant threats to *** studies have shed light on the intricate mechanisms encompassing genetics,epigenetics,transcriptomics,and metabolomics in the processes of senescence and aging,as well as the establishment of age-related *** these underlying mechanisms governing aging and related pathology metabolism assumes a pivotal role that holds promise for intervention and *** advancements in metabolomics techniques and analysis methods have significantly propelled the study of senescence and aging,particularly with the aid of multiscale metabolomics which has facilitated the discovery of metabolic markers and therapeutic *** review provides an overview of senescence and aging,emphasizing the crucial role metabolism plays in the aging process as well as age-related diseases.

关键词： metabolism aging senescence age-related diseases metabolomics

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Self-powered sensor based on compressible ionic gel electrolyte for simultaneous determination of temperature and pressure

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InfoMat 2024年第7期6卷 62-75页

作者： Junjie Zou Yanan Ma Chenxu Liu Yimei Xie Xingyao Dai Xinhui Li Shuxuan Li Shaohui Peng Yang Yue Shuo Wang Ce-Wen Nan Xin Zhang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center of Smart Materials and Devices&International School of Materials Science and EngineeringWuhan University of TechnologyWuhanthe People's Republic of China Hubei Key Laboratory of Energy Storage and Power Battery School of MathematicsPhysics and Optoelectronic EngineeringHubei University of Automotive TechnologyShiyanthe People's Republic of China Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefeithe People's Republic of China State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijingthe People's Republic of China

The simultaneous detection of multiple stimuli,such as pressure and temperature,has long been a persistent challenge for developing electronic skin(eskin)to emulate the functionality of human ***,the demand for integrated power supply units is an additional pressing concern to achieve its lightweightness and ***,we propose a self-powered dual temperature–pressure(SPDM)sensor,which utilizes a compressible ionic gel electrolyte driven by the potential difference between MXene and Al *** SPDM sensor exhibits a rapid and timely response to changes in pressure-induced deformation,while exhibiting a slow and hysteretic response to temperature *** distinct response characteristics enable the differentiation of current signals generated by different stimuli through machine learning,resulting in an impressive accuracy rate of 99.1%.Furthermore,the developed SPDM sensor exhibits a wide pressure detection range of 0–800 kPa and a broad temperature detection range of 5–75C,encompassing the environmental conditions encountered in daily human *** dual-mode coupled strategy by machine learning provides an effective approach for temperature and pressure detection and discrimination,showcasing its potential applications in wearable electronics,intelligent robots,human–machine interactions,and so on.

关键词： e-skin gel electrolyte machine learning self-powered dual-mode sensor

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Effects of Heat Treatment on the Thermal Properties of A356 Aluminum Alloys in Different Casting Processes 75

Effects of Heat Treatment on the Thermal Properties of A356 ...

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75th World Foundry Congress, WFC 2024

作者： Luo, Xiaomei Li, Yuan-Dong Liu, Wenjing Qiu, Jin Sun, Lu Zhou, Hongwei Bi, Guang-Li State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of Technology Lanzhou730050 China Key Lab. of Non-ferrous Metal Alloys and Processing Ministry of Education Lanzhou University of Technology Lanzhou730050 China

The thermal diffusivity and specific heat capacity of continuous casting (SC) and high-pressure diecasting (HPDC) aluminum alloys before and after T4 and T6 heat treatments were measured at room temperature, and their thermal conductivity was calculated. The effects of heat treatments on the thermal properties of A356 alloys in different casting processes were investigated, and the mechanism of the effects was also discussed. Before heat treatment, the SC alloys had higher thermal conductivity than that of the HPDC alloys. Moreover, heat treatment after forming had a remarkable influence on the thermal properties of the SC and HPDC alloys. T4 treatment had positive effects on the thermal conductivity of the SC and HPDC A356 alloys, and the T6 heat-treatment SC and HPDC alloys had higher thermal conductivity than that of the T4 treatment alloys. © 2024 75th World Foundry Congress, WFC 2024. All rights reserved.

关键词： Continuous casting

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Low power consumption reduced state and transition MLSE in optical interconnects

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Science China(Information Sciences) 2023年第10期66卷 325-326页

作者： Weihao NI Fan LI Wei WANG Zhibin LUO Xingwen YI Yi CAI Zhaohui LI School of Electronics and Information Technology Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems Sun Yat-sen University Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Jiangsu Engineering Research Center of Novel Optical Fiber Technology and Communication Network Suzhou Key Laboratory of Advanced Optical Communication Network Technology Soochow University

Intensity modulation/direct detection(IM/DD) optical fiber communication system is an appropriate candidate for optical interconnect applications due to its low cost and low power consumption characteristics [1]. 4-level pulse amplitude modulation(PAM-4) is widely discussed in optical interconnects due to its simpler transceiver configuration and implementation [2].

关键词： Optical interconnects

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