检索结果-南通市图书馆

bioinspired fish-scale-like magnesium composites strengthened by contextures of continuous titanium fibers:Lessons from nature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Magnesium and Alloys 2023年第3期11卷 869-881页

作者： Yanyan Liu Qin Yu Guoqi Tan Mingyang Zhang Enling Tang Shaogang Wang Zengqian Liu Qiang Wang Zhefeng Zhang Robert O.Ritchie Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of materials Science and Engineering University of Science and Technology of ChinaHefei 230026China Department of materials Science and Engineering University of California BerkeleyBerkeleyCA 94720USA Key Laboratory of Transient Physical Mechanics and Energy Conversion materials of Liaoning Province Shenyang Ligong UniversityShenyang 110159China Liaoning Provincial Key Laboratory of Oral Diseases School and Hospital of StomatologyChina Medical UniversityShenyang 110001China

Natural fish scales demonstrate outstanding mechanical efficiency owing to their elaborate architectures and thereby may serve as ideal prototypes for the architectural design of man-made materials.Here bioinspired magnesium composites with fish-scale-like orthogonal plywood and double-Bouligand architectures were developed by pressureless infiltration of a magnesium melt into the woven contextures of continuous titanium fibers.The composites exhibit enhanced strength and work-hardening ability compared to those estimated from a simple mixture of their constituents at ambient to elevated temperatures.In particular,the double-Bouligand architecture can effectively deflect cracking paths,alleviate strain localization,and adaptively reorient titanium fibers within the magnesium matrix during the deformation of the composite,representing a successful implementation of the property-optimizing mechanisms in fish scales.The strength of the composites,specifically the effect of their bioinspired architectures,was interpreted based on the adaptation of classical laminate theory.This study may offer a feasible approach for developing new bioinspired metal-matrix composites with improved performance and provide theoretical guidance for their architectural designs.

关键词： Magnesium composites Bioinspired materials Fish scales Bouligand-type architecture Structural reorientation

bioinspired nanocomposites with self-adaptive mechanical properties

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第2期17卷 633-648页

作者： Grant Kitchen Bohan Sun Sung Hoon Kang 13400 N Charles St Department of Materials Science and EngineeringJohns Hopkins UniversityBaltimore 21218USA 23400 N Charles St Department of Mechanical EngineeringJohns Hopkins UniversityBaltimore 21218USA 33400 N Charles St Hopkins Extreme Materials InstituteJohns Hopkins UniversityBaltimore 21218USA

Conventional synthetic materials have fixed mechanical properties and suffer defects,damage,and degradation over time.This makes them unable to adapt to changing environments and leads to limited lifecycles.Recently,self-adaptive materials inspired by natural materials have emerged as a solution to address these problems.With the ability to change their mechanical properties based on changing mechanical environments,repairing defects,and maintaining their mechanical properties,these materials can lead to improved performance while decreasing waste.In this review,we explore self-adaptive phenomena found in nature that have inspired the development of synthetic self-adaptive materials,and the mechanisms that have been employed to create the next generation of materials.The potential applications of these materials,the challenges that existing approaches face,and future research opportunities are also discussed.

关键词： nanocomposites self-adaptive materials Bioinspired materials force-activated resilience

bioinspired designs in active metal-based batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第2期17卷 587-601页

作者： Fan Zhang Ting Liao Cheng Yan Ziqi Sun School of Chemistry and Physics Queensland University of TechnologyGeorge StreetBrisbaneQLD 4000Australia School of Mechanical Medical and Process Engineering Queensland University of TechnologyGeorge StreetBrisbaneQLD 4000Australia QUT Centre for materials Science Queensland University of TechnologyGeorge StreetBrisbaneQLD 4000Australia

Active metal-based batteries are drawing increased attention because of their inherent high energy density and specific capacity.Some grand challenges,such as dendrite growth,electrode degradation,rapid performance fading,etc.,have limited their practical application.Bioinspiration,which involves taking cues from the structures and functions of the natural world,can lead to a wealth of conceptually fresh approaches to regulator the metal ion transportation to achieve a dendrite-free metal plating,thwart the side-reaction reactions,and retard the structural distortions,for a more reliable and secure operation of active metal-based batteries.In this review,we concentrate on the fabrication and application of bioinspired designs in active metal-based batteries with enhanced performance,along with discussion on the challenges and opportunities associated with this promising topic.We anticipate that this review can offer some insights into the development of functional materials by learning from nature and provide some approaches for the innovations of either the battery structures or the energy materials for metal-based batteries.

关键词： Bioinspired materials energy storage devices metal-based batteries

bioinspired directional liquid transport induced by the corner effect

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2023年第3期16卷 3913-3923页

作者： Zhongyu Shi Zhongxue Tang Bojie Xu Lei Jiang Huan Liu Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China Research Institute for Frontier Science Beihang UniversityBeijing 100191China

Many natural creatures have demonstrated unique abilities in directional liquid transport(DLT)for better adapting to the local environment,which,for a long time,have inspired the material fabrication for applications in microfluidics,self-cleaning,water collection,etc.Recently,DLTs aroused by the corner effect have been witnessed in various natural organisms,where liquid transports/spreads spontaneously along the corner structures in microgrooves,wedges or conical structures driven by micro-/nano-scaled capillary forces without external energy input.Particularly,these DLTs show advantages of ultrahigh speed,continuous proceeding,and/or external controllability.Here,we reviewed recent research advances on the bioinspired DLTs induced by the corner effect,as well as the involved mechanisms and the artificial counterpart materials with various applications.We also introduced some Bioinspired materials that are capable of stimulus-responsive DLT under external fields.Finally,we suggested perspectives of the bioinspired DLTs in liquid manipulations.

关键词： directional liquid transport Bioinspired materials corner effect capillary rise Laplace pressure

Friction and wear behavior of bioinspired composites with nacre-like lamellar and brick-and-mortar architectures against human enamel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of materials Science & Technology 2022年第33期128卷 133-141页

作者： Kefeng Gao Jianjun Guan Hui Sun Chengwei Han Guoqi Tan Zengqian Liu Qiang Wang Zhefeng Zhang School of Mechanical Engineering Liaoning Petrochemical UniversityFushun 113001China Shi-Changxu Innovation Center for Advanced materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Liaoning Provincial Key Laboratory of Oral Diseases School and Hospital of StomatologyChina Medical UniversityShenyang 110001China Liaoning Upcera Co. Ltd.Benxi 117004China School of materials Science and Engineering University of Science and Technology of ChinaHefei 230026China

Friction and wear performance is critical for dental materials which are inevitably subject to reciprocating friction against opposing teeth in applications.Here in-vitro friction and wear behavior of bioinspired ceramic-polymer composites,which possess nacre-like lamellar and brick-and-mortar architectures and resemble human teeth in their stiffness and hardness,against human tooth enamel were quantitatively investigated to imitate actual service conditions in line with standardized testing configuration.The composites were revealed to exhibit different wear mechanisms and lead to differing extents of wear to the opposing tooth enamel depending on their specific architectural types and orientations.In particular,the brick-and-mortar architecture displayed much less wear than the lamellar one,without obviously roughening the contact surfaces with enamel owing to its high ceramic content,and as such did not accelerate the wear of enamel as compared to smooth ceramics.Such characteristics,combined with its unique stiffness and hardness matching those of human enamel as well as the good fracture toughness and machinability,endow the composite with a promising potential for dental applications.This work may provide an experimental basis to this end and may also give insights towards designing new bioinspired wear-resistant materials for reducing friction and wear.

关键词： Bioinspired materials Nacre-like structures Friction Wear mechanisms Orientation

Nature-inspired materials and designs for flexible lithium-ion batteries

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Carbon Energy 2022年第5期4卷 878-900页

作者： Heng Li Huibo Wang Dan Chan Zhu Xu Kexuan Wang Mingzheng Ge Yanyan Zhang Shi Chen Yuxin Tang State Key Laboratory of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiChina Institute of Applied Physics and materials Engineering University of MacaoMacao SARChina College of Chemical Engineering Fuzhou UniversityFuzhouChina School of Textile and Clothing Nantong UniversityNantongChina

Flexible lithium-ion batteries(FLBs)are of critical importance to the seamless power supply of flexible and wearable electronic devices.However,the simultaneous acquirements of mechanical deformability and high energy density remain a major challenge for FLBs.Through billions of years of evolutions,many plants and animals have developed unique compositional and structural characteristics,which enable them to have both high mechanical deformability and robustness to cope with the complex and stressful environment.Inspired by nature,many new materials and designs emerge recently to achieve mechanically flexible and high storage capacity of lithiumion batteries at the same time.Here,we summarize these novel FLBs inspired by natural and biological materials and designs.We first give a brief introduction to the fundamentals and challenges of FLBs.Then,we highlight the latest achievements based on nature inspiration,including fiber-shaped FLBs,origami and kirigami-derived FLBs,and the nature-inspired structural designs in FLBs.Finally,we discuss the current status,remaining challenges,and future opportunities for the development of FLBs.This concise yet focused review highlights current inspirations in FLBs and wishes to broaden our view of FLB materials and designs,which can be directly“borrowed”from nature.

关键词： Bioinspired materials flexibility lithium-ion batteries structural design

Ice-templated porous tungsten and tungsten carbide inspired by natural wood

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of materials Science & Technology 2020年第10期42卷 187-197页

作者： Yuan Zhang Guoqi Tan Da Jiao Jian Zhang Shaogang Wang Feng Liu Zengqian Liu Longchao Zhuo Zhefeng Zhang Sylvain Deville Robert O.Ritchie Laboratory of Fatigue and Fracture for materials Institute of Metal Research.Chinese Academy of SciencesShenyang 110016China School of Mechanical Engineering Liaoning Shihua UniversityFushun 113001China School of materials Science and Engineering University of Science and Technology of ChinaHefei 230026China School of materials Science and Engineering Xi'an University of TechnologyXi'an710048China Laboratoire De Synthese Et Fonctionnalisation Des Ceramiques UMR3080 CNRS/Saint-Gobain CREESaint-Gobain Research ProvenceCavaillon 84306France Department ofMateriab Science and Engineering University of California BerkeleyBerkeleyCA 94720USA

The structures of tungsten and tungsten carbide scaffolds play a key role in determining the properties of their infiltrated composites for multifunctional applications.However,it is challenging to construct and control the architectures by means of self-assembly in W/WC systems because of their large densities.Here we present the development of unidirectionally porous architectures,with high porosities exceeding 65 vol.%,for W and WC scaffolds which in many respects reproduce the design motif of natural wood using a direct ice-templating technique.This was achieved by adjusting the viscosities of suspensions to retard sedimentation during freezing.The processing,structural characteristics and mechanical properties of the resulting scaffolds were investigated with the correlations between them explored.Quantitative relationships were established to describe their strengths based on the mechanics of cellular solids by taking into account both inter-and intra-lamellar pores.The fracture mechanisms were also identified,especially in light of the porosity.This study extends the effectiveness of the ice-templating technique for systems with large densities or particle sizes.It further provides preforms for developing new natureinspired multifunctional materials,as represented by W/WC-Cu composites.

关键词： Ice-templating Tungsten Scaffolds Fracture mechanisms Bioinspired materials

Amphiphilic Pd@micro-organohydrogels with controlled wettability for enhancing gas-liquid-solid triphasic catalytic performance

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第1期15卷 557-563页

作者： Minghui Zhang Tianyi Zhao Cunming Yu Qian Liu Guangyan Wang Hui Yang Ming Yang Lei Jiang Mingjie Liu Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China CAS Key Lab of Colloid Interface and Chemical Thermodynamics Institute of ChemistryChinese Academy of SciencesBeijing 100190China

The wettability of catalyst plays an important role in regulating catalytic performance in heterogenous catalysis because the microenvironment around the catalytic sites directly determines the mass transfer process of reactants.Inspired by gas trapped on the surface of subaquatic spiders,amphiphilic micro-organohydrogels with tunable surface wettabilities were developed by anchoring various alkane chains onto a poly(2-(dimethylamino)ethyl methacrylate)(p(DMAEMA))hydrophilic microgel network.Palladium nanoparticles(Pd NPs)were encapsulated in amphiphilic microgels(amphiphilic Pd@M)to catalyze hydrogenation reaction,achieving higher activities than pristine monohydrophilic Pd@M composite.The underwater oleophilicity and aerophilicity of Pd@M composites were quantified by oil/gas adhesion measurements and computational simulations.The higher amphiphilic catalytic activities are attributed to the formation of a gas-oil-solid reaction interface on the catalyst surfaces,allowing rapid transport of H2 and organic substrates through water to the Pd catalytic sites.Additionally,amphiphilic Pd@M composites also exhibit more superior catalytic performance in multi-substrates reaction.

关键词： tunable surface wettability Bioinspired materials gel amphiphilic microgel heterogeneous catalysis three-phase catalysis

Nanofibril Organization in Silk Fiber as Inspiration for Ductile and Damage-Tolerant Fiber Design

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advanced Fiber materials 2019年第3期1卷 231-240页

作者： Shihui Lin Chao Ye Wenwen Zhang Anchang Xu Shixian Chen Jing Ren Shengjie Ling School of Physical Science and Technology ShanghaiTech University393 Middle Huaxia RoadShanghai 201210China Jiangsu Co‑Innovation Center of Efficient Processing and Utilization of Forest Resources Jiangsu Key Lab of Biomass‑Based Green Fuel and ChemicalsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China State Key Laboratory of New Textile materials and Advanced Processing Technology School of Textile Science and EngineeringWuhan Textile UniversityWuhan 430200China

Ductile and damage-tolerant fibers(DDTFs)are desired in aerospace engineering,mechanical engineering,and biomedical engineering because of their ability to prevent the catastrophic sudden structural/mechanical failure.However,in practice,design and fabrication of DDTFs remain a major challenge due to finite fiber size and limited processing techniques.In this regard,animal silks can provide inspirations.They are hierarchically structured protein fibers with an elegant trade-off of mechanical strength,extensibility and damage tolerance,making them one of the toughest materials known.In this article,we confirmed that nanofibril organization could improve the ductility and damage-tolerance of silk fibers through restricted fibril shearing,controlled slippage and cleavage.Inspired by these strategies,we further established a rational strategy to produce polyamide DDTFs by combining electrospinning and yarn-spinning techniques.The resultant polymeric DDTFs show a silk-like fracture resistance behavior,indicating potential applications in smart textile,biomedicine,and mechanical engineering.

关键词： Fiber Silk Mechanical property Damage tolerance Bioinspired materials