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Self-assembling nacre-like high-strength and extremely tough polymer composites with new toughening mechanism

Journal of materials science & Technology 2023年第5期136卷 236-244页

作者： Yu Bu Xu Wang Xiuming Bu Zhengyi Mao Zhou Chen Zebiao Li Fengqian Hao Johnny C.Ho Jian Lu CityU-Shenzhen Futian Research Institute Shenzhen 518045China Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research InstituteGreater Bay Joint DivisionShenyang National Laboratory for Materials Science8 Yuexing 1st RoadShenzhen Hi-Tech Industrial ParkNanshan DistrictShenzhen 518000China MOE Key Laboratory of Impact and Safety Engineering Ningbo UniversityNingbo 315211China Department of Materials Science and Engineering City University of Hong KongHong Kong SAR 999077China Department of Mechanical Engineering City University of Hong KongHong Kong SAR 999077China

Achieving high strength,deformability and toughness in polymers is important for practical industrial *** has remained challenging because of the mutually opposing effects of improvements to each of these ***,a self-assembling nacre-like polymer composite is designed to achieve ex-tremely tough with increasing *** special design significantly improved polymer’s mechanical properties,including an ultra-high fracture strain of 1180%,a tensile strength of 55.4 MPa and a toughness of 506.9 MJ/m^(3),which far exceed the highest values previously reported for polymer *** ex-cellent combination of properties can be attributed to a novel toughening mechanism,achieved by the synergy of the domain-limiting effect of metallic glass fragments with the strain-gradient-induced orien-tation and crystallisation within the polymer during *** approach opens a promising avenue for designing robust polymer materials in armour and aerospace engineering for a range of innovative applications.

关键词： Polymer composites Metallic glass thin film Toughness Toughening mechanism Nacre-like fracture

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Perspective on antiferroelectrics for energy storage and conversion applications

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Chinese Chemical Letters 2021年第7期32卷 2097-2107页

作者： Fangping Zhuo Huimin Qiao Jiaming Zhu Shuize Wang Yang Bai Xinping Mao Hong-Hui Wu Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Department of Materials and Earth Science Technical University of Darmstadt School of Advanced Materials and Engineering Sungkyunkwan University(SKKU) Department of Mechanical Engineering The Hong Kong Polytechnic University

As a close relative of ferroelectricity,antiferroelectricity has received a recent resurgence of interest driven by technological aspirations in energy-efficient applications,such as energy storage capacitors,solid-state cooling devices,explosive energy conversion,and displacement *** prolonged efforts in this area have led to certain progress and the discovery of more than 100 antiferroelectric materials over the last 70 years,some scientific and technological issues remain ***,we provide perspectives on the development of antiferroelectrics for energy storage and conversion applications,as well as a comprehensive understanding of the structural origin of antiferroelectricity and field-induced phase transitions,followed by design strategies for new lead-free *** also envision unprecedented challenges in the development of promising antiferroelectric materials that bridge materials design and real *** research in these directions will open up new possibilities in resolving the mystery of antiferroelectricity,provide opportunities for comprehending structure-property correlation and developing antiferroelectric/ferroelectric theories,and suggest an approach to the manipulation of phase transitions for real-world applications.

关键词： Antiferroelectric materials Energy storage Energy conversion Solid-state cooling Structural origin Phase transition

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Optimization of Process Parameters and Additives for Improved Part Quality in Sand Casting: An Overview

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Journal of The Institution of Engineers (India): Series D 2024年 1-25页

作者： Chadha, Utkarsh Dhaliwal, Gurbaaz Singh Sondi, Nickson Jacob Darar, Sandeep Chen, Yifan Ram Kishore, S. Yang, Won-Chol Department of Materials Science and Engineering Faculty of Applied Sciences and Engineering University of Toronto TorontoONM5S 2Z9 Canada Vellore Institute of Technology Tamil Nadu Vellore632014 India Department of Chemical Engineering and Applied Chemistry Faculty of Applied Sciences and Engineering University of Toronto TorontoONM5S 2Z9 Canada School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue Singapore639798 Singapore Faculty of Materials Science and Technology Kim Chaek University of Technology 60 Kyogu Pyongyang Korea People's Democratic Rep Vellore Institute of Technology Madhya Pradesh Bhopal India

The sand-casting process is predominantly used worldwide, especially in small-scale industries. It is very important for small component manufacturing and is one of the simple metal casting methods. However, the sand-casting process has some flaws, which also sometimes lead to a higher cost in some cases, especially the disadvantages like the surface finishing and the porosity add up to higher cost in the cases of complicated castings and their machining. This review investigates various research works done in and around the sand-casting process and tries to implement the parameters to obtain an appropriate final product from the sand-casting process, focusing on the intermediaries involved during the sand process casting and using them efficiently. These intermediaries may include the components used during the sand-casting process, predominantly sand, the metal used, the mold used for making the cavity, the chill used for promoting homogeneous nucleation, etc. Another focus is on decreasing the wastage of resources during the process. The discussed parameters will attempt to provide future directions to maximally control the disadvantages to some extent in the current process. © The Institution of Engineers (India) 2024.

关键词： Porosity

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Microstructure controlled synthesis of Ni,N-codoped CoP/carbon fiber hybrids with improving reaction kinetics for superior sodium storage

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Journal of materials science & Technology 2022年第4期99卷 184-192页

作者： Huijun Li Xiaomin Wang Zhenxin Zhao Rajesh Pathak Siyue Hao Xiaoming Qiu Qiquan Qiao College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Shanxi Key Laboratory of New Energy Materials and Devices Taiyuan University of TechnologyTaiyuan 030024China Department of Electrical Engineering and Computer Science Center for Advanced Photovoltaics and Sustainable EnergySouth Dakota State UniversityBrookingsSD 57007USA Mechanical&Aerospace Engineering Syracuse UniversitySyracuseNY 13244USA

Transition-metal phosphides(TMPs)-based hybrid structure have received considerable attention for efficient sodium storage owing to their high capacity and decent ***,the volume expansion&the poor electronic conductivity of TMPs,the poor-rate capability,and fast capacity decay greatly hinder its practical *** address these issues,a low-cost and facile strategy for the synthesis of Ni,N-codoped graphitized carbon(C)and cobalt phosphide(CoP)embedded in carbon fiber(Ni-CoP@CN⊂CF)as self-supporting anode material is demonstrated for the first *** graphitized carbon and carbon fiber improve the electrical conductivity and inhibit the volume expansion *** addition to that,the microporous structure,and ultrasmall sized Ni-CoP offer a high surface area for electrolyte wettability,short Na-ion diffusion path and fast charge transport *** a result,outstanding electrochemical performance with an average capacity decay of 0.04%cycle^(−1)at 2000 mA g^(−1),an excellent rate capability of 270 mAh g^(−1)@2000 mA g^(−1)and a high energy density of~231.1 Wh kg^(−1)is achieved with binder-free self-supporting anode *** work shows a potential for designing binder-free and high energy density sodium-ion batteries.

关键词： Ultrasmall Ni-CoP Carbon shell Microporous structure High Na^(+)diffusion coefficients Sodium-ion batteries

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Development of a novel quality control indicator for coffee roasting based on the digitalization of smell by a portable electronic nose 20

Development of a novel quality control indicator for coffee ...

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20th International Joint Conference on Computer science and Software engineering, JCSSE 2023

作者： Somaudon, Varanya Sakuldee, Pathapee Kerdcharoen, Teerakiat Materials Science and Engineering Program Mahidol University Faculty of Science Bangkok Thailand School of Science Material Engineering Mae Fah Luang University Chiang rai Thailand Mahidol University Faculty of Science Department of Physics Bangkok Thailand

ISBN: (纸本)9798350300505

Northern Thailand is home to several Arabica coffee-growing regions, including Mae-kampong, Teentok, Mae-lord, and Monngo Valleys, whose coffees are featured throughout this study. These coffees have distinct aromas and flavors due to their varied cultivation locations, which are influenced by unique climatic conditions. The purpose of this paper is to comprehend the aroma of coffees brought from various locations and roasted under the same conditions. Our lab-made electronic nose (e-nose) was used to digitalize and analyze the smell of coffee. In order to monitor the coffee scent throughout roasting and assess how similar the aromas of coffee samples taken from various locations are to one another, principal component analysis and hierarchical cluster analysis were used. It was found that our e-nose system is an effective tool for determining the geo-location of the coffee origin as well as for quality control of coffee production. © 2023 IEEE.

关键词： Electronic nose

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3D Printed Biomimetic Metamaterials with Graded Porosity and Tapering Topology for Improved Cell Seeding and Bone Regeneration

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Bioactive materials 2023年第7期25卷 677-688页

作者： Lei Zhang Bingjin Wang Bo Song Yonggang Yao Seung-Kyum Choi Cao Yang Yusheng Shi State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China Department of Orthopaedics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China George W.Woodruff School of Mechanical Engineering Georgia Institute of TechnologyAtlantaGA30332USA

Biomimetic metallic biomaterials prepared for bone scaffolds have drawn more and more attention in recent ***,the topological design of scaffolds is critical to cater to multi-physical requirements for efficient cell seeding and bone regeneration,yet remains a big scientific challenge owing to the coupling of mechanical and mass-transport properties in conventional scaffolds that lead to poor control towards favorable modulus and permeability ***,inspired by the microstructure of natural sea urchin spines,biomimetic scaffolds constructed by pentamode metamaterials(PMs)with hierarchical structural tunability were additively manufactured via selective laser *** mechanical and mass-transport properties of scaffolds could be simultaneously tuned by the graded porosity(B/T ratio)and the tapering level(D/d ratio).Compared with traditional metallic biomaterials,our biomimetic PM scaffolds possess graded pore distribution,suitable strength,and significant improvements to cell seeding efficiency,permeability,and impact-tolerant capacity,and they also promote in vivo osteogenesis,indicating promising application for cell proliferation and bone regeneration using a structural innovation.

关键词： Biomimetic biomaterials Pentamode metamaterials Selective laser melting Mass-transport properties Bone scaffolds

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“Several birds with one stone”strategy of pH/thermoresponsive flame-retardant/photothermal bactericidal oil-absorbing material for recovering complex spilled oil

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Journal of materials science & Technology 2022年第33期128卷 82-97页

作者： Ya Chen Jing Lin Gaber A.M.Mersal Jianliang Zuo Jialin Li Qiying Wang Yuhong Feng Jianwei Liu Zili Liu Bin Wang Ben Bin Xu Zhanhu Guo School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006China Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099 Taif 21944Saudi Arabia College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Department of Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle upon TyneNE18STUK Integrated Composites Laboratory(ICL) Department of Chemical&Biomolecular EngineeringUniversity of TennesseeKnoxvilleTN 37996USA

Although many material designs or strategic methods have been proposed for treating oil spills and oily wastewater,the complex oily state,dealing with the harsh operating conditions of oil–water separation(such as the recovery of viscous spilled crude oil,bacteria-containing oily wastewater,and removal of spilled oil under fire),and the autorecycling of oil and absorption materials remain a great *** work proposed an ingenious design strategy of“several birds with one stone”to prepare p H/thermoresponsive flame-retardant/photothermal bactericidal P-Fe_(3)O_(4)-polydopamine(PDA)@melamine–formaldehyde(MF)*** design makes the foams remarkably effective in the recovery of spilled viscous crude oil as well as in the separation of bacteria-containing oily emulsions,particularly for instant fire extinguishing by magnetically controlled oil absorption as well as for fire *** photothermal effect and p H response induce a change in the surface wettability of the foams,facilitating excellent autoadsorption/desorption of the spilled *** photothermal bactericidal activity and fouling resistance of the foam are beneficial to the separation of bacteria-containing oily *** flame-retardant properties and maneuverable magnetic control enable the foam to rapidly recover the spilled oil in a large range of fires,extinguish fires instantly,and facilitate early fire *** proposed strategy is expected to inspire further research on treating oil spills under complex conditions.

关键词： Oil-absorbing material pH-responsive Thermoresponsive Photothermal Bactericidal Fire warning

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A machine learning approach to explore tensile properties of low-temperature solders

A machine learning approach to explore tensile properties of...

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22nd International Conference on Electronics Packaging, ICEP 2023

作者： Liu, Yu-Chen Kholik, Ahmad Lin, Shih-Kang National Cheng Kung University Department of Mechanical Engineering Tainan70101 Taiwan National Cheng Kung University Department of Materials Science and Engineering Tainan70101 Taiwan

ISBN: (纸本)9784991191152

Low-temperature solder material has been proposed as a solution in reducing the reflow temperature in order to solve the warpage issue in the advanced electronic packaging. Currently, Sn-Bi solder system is considered as a promising material system for low-temperature solder. Nevertheless, (Bi) phase coarsening after thermal aging causes the brittleness of the solder and thus decreases the reliability in real application. Element doping to Sn-Bi solder is typically used in tailoring its properties. However, tailoring properties in the multi-component system with experimental trial-and-error method is not economically feasible. This study employed machine learning approach to explore tensile properties of low-temperature solders. © 2023 Japan Institute of Electronics Packaging.

关键词： Machine learning

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Electrospun Flexible Nanofibres for Batteries:Design and Application

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Electrochemical Energy Reviews 2023年第1期6卷 464-531页

作者： P.Robert Ilango A.Dennyson Savariraj Hongjiao Huang Linlin Li Guangzhi Hu Huaisheng Wang Xiaodong Hou Byung Chul Kim Seeram Ramakrishna Shengjie Peng Institute for Ecological Research and Pollution Control of Plateau Lakes School of Ecology and Environmental ScienceYunnan UniversityKunming 650504YunnanChina College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016JiangsuChina Institute for Energy Studies University of North DakotaGrand ForksND 58202USA Department of Advanced Components and Materials Engineering Sunchon National University255 Jungang-roSuncheon-siJeollanam-do 57922Republic of Korea Department of Mechanical Engineering Khalifa University127788 Abu DhabiUnited Arab Emirates Department of Physics PSGR Krishnammal College for WomenCoimbatoreTamil Nadu 641004India School of Chemistry and Chemical Engineering Liaocheng UniversityLiaocheng 252000LiaoningChina Mechanical Engineering National University of SingaporeSingapore 117583Singapore

Flexible and free-standing electrospun nanofibres have been used as electrode materials in electrochemical energy storage systems due to their versatile properties,such as mechanical stability,superb electrical conductivity,and high *** energy storage systems such as metal-ion,metal-air,and metal-sulphur batteries,electrospun nanofibres are vital for constructing flexible electrodes and substantially enhancing their electrochemical *** need for flexible batteries has increased with increasing demand for new products such as wearable and flexible devices,including smartwatches and flexible *** batteries have several semirigid to rigid components that limit their expansion in the flexible device *** creation of flexible and wearable batteries with greater mechanical flexibility,higher energy,and substantial power density is critical in meeting the demand for these new electronic *** implementation of carbon and carbon-derived composites into flexible electrodes is required to realize this *** is essential to understand recent advances and the comprehensive foundation behind the synthesis and assembly of various flexible electrospun *** design of nanofibres,including those comprising carbon,N-doped carbon,hierarchical,porous carbon,and metal/metal oxide carbon composites,will be *** will highlight the merits of electrospun carbon flexible electrodes by describing porosity,surface area,binder-free and free-standing electrode construction,cycling stability,and performance *** scientific progress has been achieved and logistical challenges have been met in promoting secondary battery usage;therefore,this review of flexible electrode materials will advance this easily used and sought-after *** challenges and prospects involved in the timely development of carbon nanofibre composite flexible electrodes and batteries will be addressed.

关键词： Electrospinning Carbon composite Flexibility Electrode Batteries

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JARVIS-Leaderboard:a large scale benchmark of materials design methods

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npj Computational materials 2024年第1期10卷 2280-2296页

作者： Kamal Choudhary Daniel Wines Kangming Li Kevin F.Garrity Vishu Gupta Aldo H.Romero Jaron T.Krogel Kayahan Saritas Addis Fuhr Panchapakesan Ganesh Paul R.C.Kent Keqiang Yan Yuchao Lin Shuiwang Ji Ben Blaiszik Patrick Reiser Pascal Friederich Ankit Agrawal Pratyush Tiwary Eric Beyerle Peter Minch Trevor David Rhone Ichiro Takeuchi Robert B.Wexler Arun Mannodi-Kanakkithodi Elif Ertekin Avanish Mishra Nithin Mathew Mitchell Wood Andrew Dale Rohskopf Jason Hattrick-Simpers Shih-Han Wang Luke E.K.Achenie Hongliang Xin Maureen Williams Adam J.Biacchi Francesca Tavazza Material Measurement Laboratory National Institute of Standards and TechnologyGaithersburgMD20899USA Department of Materials Science and Engineering University of Toronto27 King’s College CirTorontoONCanada Department of Electrical and Computer Engineering Northwestern UniversityEvanstonIL 60208USA Lewis-Sigler Institute for Integrative Genomics Princeton UniversityPrincetonNJ 08544USA Ludwig Institute for Cancer Research Princeton UniversityPrincetonNJ 08544USA Department of Physics and Astronomy West Virginia UniversityMorgantownWV 26506USA Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTN 37831USA Center for Nanophase Materials Science Oak Ridge National LaboratoryOak RidgeTN 37831USA Computational Sciences and Engineering Division Oak Ridge National LaboratoryOak RidgeTN 37831USA Department of Computer Science and Engineering Texas A&M UniversityCollege StationTX 77843USA Globus University of ChicagoChicagoIL 60637USA Data Science and Learning Division Argonne National LabLemontIL 60439USA Institute of Nanotechnology Karlsruhe Institute of TechnologyKaiserstraße 1276131 KarlsruheGermany Institute of Theoretical Informatics Karlsruhe Institute of TechnologyKaiserstraße 1276131 KarlsruheGermany Department of Chemistry and Biochemistry and Institute for Physical Science and Technology University of MarylandCollege ParkMD 20742USA Department of Physics Applied Physics and AstronomyRensselaer Polytechnic InstituteTroyNY12180USA Department of Materials Science and Engineering University of MarylandCollege ParkMD20742USA Department of Chemistry and Institute of Materials Science and Engineering Washington University in St.LouisSt.LouisMO63130USA School of Materials Engineering Purdue UniversityWest LafayetteIN47907USA Department of Mechanical Science and Engineering University of Illinois Urbana-ChampaignUrbanaIllinois 61801USA Materials Research Laboratory University of Illinois Urbana-ChampaignUrbanaIL 61801USA Theore

Lack of rigorous reproducibility and validation are significant hurdles for scientific development across many *** science,in particular,encompasses a variety of experimental and theoretical approaches that require careful *** efforts have been developed previously to mitigate these ***,a comprehensive comparison and benchmarking on an integrated platform with multiple data modalities with perfect and defect materials data is still *** work introduces JARVIS-Leaderboard,an open-source and community-driven platform that facilitates benchmarking and enhances *** platform allows users to set up benchmarks with customtasks and enables contributions in the form of dataset,code,and meta-data *** cover the following materials design categories:Artificial Intelligence(AI),Electronic Structure(ES).

关键词： rigorous perfect enable

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