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Surface engineering and the application of laser-based processes to stents-A review of the latest development

Bioactive Materials 2022年第4期7卷 159-184页

作者： J.Dong M.Pacella Y.liu l.zhao Wolfson School of Mechanical Electrical and Manufacturing EngineeringLoughborough UniversityLoughboroughLeicestershireLE113TUUK Centre for Biological Engineering Loughborough UniversityLoughboroughLeicestershireLE113TUUK

late in-stent thrombus and restenosis still represent two major challenges in stents’*** treatment of stent is attracting attention due to the increasing importance of stenting intervention for coronary artery *** surface engineering techniques have been utilised to improve the biological response in vivo on a wide range of biomedical *** a tailorable,precise,and ultra-fast process,laser surface engineering offers the potential to treat stent materials and fabricate various 3D textures,including grooves,pillars,nanowires,porous and freeform structures,while also modifying surface chemistry through nitridation,oxidation and ***-based processes can reduce the biodegradable materials’degradation rate,offering many advantages to improve stents’performance,such as increased endothelialisation rate,prohibition of SMC proliferation,reduced platelet adhesion and controlled corrosion and ***,adequate research has been conducted on laser surface texturing and surface chemistry *** texturing on commercial stents has been also investigated and a promotion of performance of laser-textured stents has been *** this critical review,the influence of surface texture and surface chemistry on stents performance is firstly reviewed to understand the surface characteristics of stents required to facilitate cellular *** is followed by the explicit illustration of laser surface engineering of stents and/or related *** induced periodic surface structure(lIPSS)on stent materials is then explored,and finally the application of laser surface modification techniques on latest generation of stent devices is highlighted to provide future trends and research direction on laser surface engineering of stents.

关键词： Surface engineering laser surface engineering Stent Cell response laser textured stents

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Critical transitions in the shape morphing of kirigami metallic glass

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Journal of Materials Science & Technology 2021年第2期61卷 204-212页

作者： D.X.Han l.zhao S.H.Chen G.Wang K.C.Chan Advanced Manufacturing Technology Research Center Department of Industrial and Systems EngineeringThe Hong Kong Polytechnic UniversityHung HornKowloonHong KongChina School of Mechanical Engineering Hefei University of TechnologyHefei230009China laboratory for Microstructures Institute of MaterialsShanghai UniversityShanghai200444China

Kirigami, the ancient Japanese paper cutting technique, has been applied to achieve high stretchability and low energy loss of designed metallic glass. Despite the exploration of the underlying deformation mechanism of kirigami-inspired structures from the energy point of view, the morphable responses of the kirigami patterns and the origin of the kirigami response are yet to be fully understood. This study reveals the mechanical driven-forms of the kirigami structure with the corresponding deformation stages. Based on the beam deflection theory, the elastic buckling behavior of kirigami metallic glass is manifested and a critical force prediction model is developed. Moreover, a force concentration parameter is introduced in the rigid-plastic deformation stage, predicting the nominal ultimate force. The kirigami-inspired facture force is firstly proposed. The findings of these models are in good agreement with the experimental sizedependent kirigami responses, and expected to provide significant insights into the understanding of the deformation behavior and the design of kirigami metallic glasses.

关键词： Metamaterial Kirigami metallic glass Critical load Size effect Beam deflection

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Critical review and functional safety of a battery management system for large‑scale lithium‑ion battery pack technologies

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International Journal of Coal Science & Technology 2022年第3期9卷 1-17页

作者： K.W.See Guofa Wang Yong Zhang Yunpeng Wang lingyu Meng Xinyu Gu Neng Zhang K.C.lim l.zhao Bin Xie Azure Mining Technology CCTEG 821 Pacifc HighwaySydneyNSW 2067Australia China Coal Research Institute Beijing 100013China China Mining Products Safety Approval and Certifcation Center Beijing 100013China School of Mechanical Electronic and Information Engineering China University of Mining and TechnologyBeijing 100083China Beijing Tianma Intelligent Control Technology Co. LtdBeijing 101399China Australian Institute for Innovative Materials Institute for Superconducting and Electronic MaterialsUniversity of WollongongInnovation CampusWollongongNSW 2500Australia

The battery management system(BMS)is the main safeguard of a battery system for electric propulsion and machine *** is tasked to ensure reliable and safe operation of battery cells connected to provide high currents at high voltage *** addition to efectively monitoring all the electrical parameters of a battery pack system,such as the voltage,current,and temperature,the BMS is also used to improve the battery performance with proper safety measures within the *** growing acceptance of lithium-ion batteries,major industry sectors such as the automotive,renewable energy,manufacturing,construction,and even some in the mining industry have brought forward the mass transition from fossil fuel dependency to electric powered machinery and redefned the world of energy ***,the functional safety considerations,which are those relating to automatic protection,in battery management for battery pack technologies are particularly important to ensure that the overall electrical system,regardless of whether it is for electric transportation or stationary energy storage,is in accordance with high standards of safety,reliability,and *** the system or product fails to meet functional and other safety requirements on account of faulty design or a sequence of failure events,then the environment,people,and property could be *** paper analyzed the details of BMS for electric transportation and large-scale energy storage systems,particularly in areas concerned with hazardous *** analysis covers the aspect of functional safety that applies to BMS and is in accordance with the relevant industrial standards.A comprehensive evaluation of the components,architecture,risk reduction techniques,and failure mode analysis applicable to BMS operation was also *** article further provided recommendations on safety design and performance optimization in relation to the overall BMS integration.

关键词： Battery management system Functional safety Hazardous area lithium-ion batteries Failure mode analysis Electric transportation large-scale energy storage

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Incorporating Magnetic Hysteresis of Molecular Nanowire and Anisotropic Thermal-Expansion-Induced Hysteretic Magnetic Transition

Incorporating Magnetic Hysteresis of Molecular Nanowire and ...

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第七届全国物理无机化学学术会议

作者： T.liu l.zhao State Key laboratory of Fine Chemicals Dalian University of Technology

Magnetic bistable materials can potentially be used as memory and switch *** multifaceted materials by incorporating two or more hysteretic magnetic transitions that respond to different perturbations into a single material is *** this study,inorganic W-CoN-Fe chains were linked by ditopic organic ligands to a 3D framework,which exhibited both thermal hysteresis and

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Enhanced mechanical performance of grain boundary precipitation-hardened high-entropy alloys via a phase transformation at grain boundaries

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Journal of Materials Science & Technology 2021年第27期86卷 271-284页

作者： Y.l.Qi l.zhao X.Sun H.X.Zong X.D.Ding F.Jiang H.l.Zhang Y.K.Wu l.He F.liu S.B.Jin G.Sha J.Sun State Key laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China Analytical&Testing Center Northwestern Polytechnical UniversityXi’an710072China School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing210094China

Grain-boundary(GB)precipitation has a significant adverse effect on plasticity of alloys,which easily leads to catastrophic intergranular failure in safety-critical applications under high external ***,we report a novel strategy that uses the local stress concentration induced by GB precipitates as a driving force to trigger phase transformation of preset non-equiatomic high-entropy solid-solution phase at *** in situ deformation-induced phase transformation at GBs introduces a well-known effect:transformation-induced plasticity(TRIP),which enables an exceptional elongation to fracture(above 38%)at a high strength(above 1.5 GPa)in a GB precipitation-hardened high-entropy alloy(HEA).The present strategy in terms of"local stress concentration-induced phase transformations at GBs"may provide a fundamental approach by taking advantage of(rather than avoiding)the GB precipitation to gain a superior combination of high strength and high ductility in HEAs.

关键词： Non-equiatomic Grain-boundary precipitation High-entropy alloys Ductility Transformation-induced plasticity

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High throughput synthesis enabled exploration of CoCrFeNi-based high entropy alloys

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Journal of Materials Science & Technology 2022年第15期110卷 269-282页

作者： l.zhao l.Jiang l.X.Yang H.Wang W.Y.Zhang G.Y.Ji X.Zhou W.A.Curtin X.B.Chen P.K.liaw S.Y.Chen H.Z.Wang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory of Metal Materials CharacterizationCentral Iron and Steel Research InstituteBeijing 100081China Institute for Advance Studies in Precision Materials Yantai UniversityYantai 264005China National Center for Materials Service Safety University of Science and Technology BeijingBeijing 100083China laboratory for Multiscale Mechanics Modeling Ecole Polytechnique Federale de LausanneLausanne CH-1015Switzerland School of Engineering RMIT UniversityMelbourne 3046Australia Department of Materials Science and Engineering The University of Tennessee37996USA

To accelerate the exploration,screening,and discovery of structural high-entropy alloys with targeted properties,the newly developed High-Throughput Hot-Isostatic-Pressing based Micro-Synthesis Approach(HT-HIP-MSA)is employed to efficiently synthesize and characterize 85 combinatorial alloys in a 13-principal element alloying *** Co Cr Fe Ni-based high entropy alloys span 1 quaternary,9 quinary,and 36 senary alloy systems,and their composition-structure-property relationships are characterized and analyzed experimentally and *** the single-phase FCC CoCrFeNi alloy base,with Mn,Cu,Ti,Nb,Ta,Mo,W,Al,and Si as principal element alloying additions,we find(1)the extended Mn solubility in the single-phase FCC CoCrFeNi-Mn_(x) alloys,(2)the destabilizing behavior for most of the quinary and senary alloys,and(3)the distinctive solid-solution-strengthening effects in the *** combining the computational methods,the HT-HIP-MSA can be systematic and economic to explore and refine the compositions,structures,and properties of structural high-entropy alloys.

关键词： High-entropy alloys High-throughput Composition-structure-property

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Effects of transition-metal-ion(Cu2+,Fe3+) doping on the photocatalytic activity of ZnIn2S4 for hydrogen evolution

Effects of transition-metal-ion(Cu2+,Fe3+) doping on the pho...

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第九届全国氢能学术会议

作者： S.H.Shen,l.zhao,P.H.Guo and l.J.Guo Xi’an Jiaotong University,China

In order to investigate the effect of transition-metal-ion doping on the photocatalytic activity of ZnInS for hydrogen evolution,Cu- and Fe-doped ZnInS photocatalysts have been synthesized by a facile hydrothermal *** physical and photophysical properties of the undoped,Cu- and Fe-doped ZnInS were characterized by X-ray diffraction(XRD), photoluminescence spectra(Pl),scanning electron microscope(FESEM) and UV-visible

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ZnmIn2S3+m(m=1～5,integer):A new series of visible-light-driven photocatalyst for splitting water to hydrogen

ZnmIn2S3+m(m=1～5,integer):A new series of visible-light-dri...

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第九届全国氢能学术会议

作者： S.H.Shen,l.zhao,Z.H.Zhou,l.J.Guo Xi’an Jiaotong University,China

A new series of ZnInS(m=1～5,integer) photocatalysts were synthesized via a hydrothermal method with the assistance of CTAB.X-ray diffraction,Raman spectra, UV-vis-near-IR diffuse reflectance spectra,X-ray fluorescence and scanning electron microscope were used to characterize these *** ZnInS photocatalysts had a similar crystal *** absorption edge of ZnInS shifted to shorter

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Study and development on innovate integrated technology for wastewater reuse in oilfield

Study and development on innovate integrated technology for ...

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第六届化学工程与生物技术展览暨会议

作者： X.Tan,l.zhao,T.li,Y.lu,l.Fan(School of Environmental Science and Engineering,Tianjin University,Tianjin,300072,P.R.China)

＜正＞ 1. Situation and problems of wastewater during oil extraction During oil extraction, there is a great deal water coming with oil, and the rate ofcontaining water reaches seventy to ninety five percent. According to this ratio, more than4.7 billion cubic meters of wastewater ayear will be produced only in Daqing Oilfield. The

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Insight into the geodynamics of cratonic reactivation from seismic analysis of the crust-mantle boundary

Insight into the geodynamics of cratonic reactivation from s...

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中国科学院地质与地球物理研究所2008学术年会

作者： T.Y.Zheng,l.zhao,and R.X.Zhu 1 Seismological laboratory(SKl-lE),Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,China.

[1]The reactivation of craton is a crucial issue for the understanding of continent *** the partial loss of the thick lithospheric root of the North China Craton (NCC) was documented,its mechanism remains a contentious topic in the study of cratonic *** this paper,we imaged the crust-mantle structures by using the data from 36 permanent stations with fine spatial coverage in the Yanshan tectonic belt(YSTB) and the Taihangshan region(TSR) in the northern *** tectonic units with distinct crust-mantle structures were recognized and their junction zone was *** results reveal distinct features of the crust-mantle boundaries of the YSTB and the TSR which are characterized by a sharp interface and a thick transition zone,*** on the analysis of the seismic structures of the crust-mantle boundary and the upper mantle,we propose that the NCC reactivation was possibly derived by a slow secular ascension of hydrated asthenospheric material atop the stagnant Pacific slab,which influenced the formation of crust-mantle transition zone in the eastern *** the other hand, regional delamination of the deep crust after orogenic thickened and/or magmatic underplating beneath the YSTB caused the spatial variation of the crust-mantle boundary. Both of the mantle processes possibly changed the nature of the lithospheric mantle.

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