简介：ExperimentswerecarriedouttostudytheinfluenceofsurfaceconditiononexpulsionduringthespotweldingofAZ31BMgalloy.AgeneralelectricalcontactresistancetheoryforconductiveroughsurfacesandtherelationbetweenmaximumtemperatureTminthecontactandvoltage-dropVacrossinterfaceoftwosurfaceswereemployedtounderstandthereasonofexpulsioninMgalloyspotwelding.Themainreasonofexpulsionisthatthehighelectricalcontactresistanceinducedbylargeroughnessofthesurfaceandoxidefilmcoveredonthesurfaceleadstolocalmeltingofmetalintheinterfaceoftwosurfaces,andliquidmetalofthelocalareaejectedfromthespecimenunderelectrodeforceformsexpulsion.

简介：烟抑制机制和沥青的表演上的扩展石墨的效果被适用学习红外线的光谱学(英尺红外)，X光检查衍射(XRD)，扫描电子显微镜学(SEM)和全面热分析(TG，DSC)。试验性的结果证实与可扩充的石墨被混合的沥青将在热混合，和扩展石墨层的过程膨胀将在沥青由轻部件胀大。在沥青的轻部件并且哼扩展石墨表面或在在盘子之间的扩展石墨层的塞子的部分上的吸附使成核结晶化成为了生长。并且货车derWaals力量并且有效地格子罐头结合制止沥青烟版本。同时，有氧化罐头的膨胀代理人传播了进沥青，导致沥青氧化并且塑料减退，当韧性减少时。扩展石墨，SBS修饰词和环境友好的可塑剂习惯于合成修改沥青。根据沥青烟版本实验，沥青性能的正常测试，Brookfield粘性测试，RTFOT测试和沥青，混合测试(高温度稳定性，低温度稳定性，水稳定性)，比到SBS的矩阵沥青和等价物的修改沥青的，修改沥青表演才好。而且，它有好烟抑制效果。

简介：一步舞预告的处理，阳极化，被用来激活基于的polyacrylonitrile(平底锅)碳纤维而不是平淡的二拍子的圆舞预告的处理，有SnCl2的促进感受性和有PdCl2的激活。基于平底锅的碳纤维的graphitization上的阳极化预告的处理的效果作为功能被调查捏催化剂。基于平底锅的碳纤维在导致活跃地点的形成的H3PO4电解质被阳极化，它从而便于下列无电捏涂层。碳纤维当面并且缺席捏涂层热被对待，结构的变化被X光检查衍射和拉曼光谱学描绘，哪个显示基于平底锅的碳纤维的graphitization被阳极化处理和催化剂加速捏。用阳极化的碳纤维，平淡的二拍子的圆舞预告的处理，促进感受性和激活，不被需要。

简介：CellularspacingselectionofCu-27.3wtpctMnalloyhasbeeninvestigatedbylasersurfacerapidresolidificationexperiments.Theexperimentalresultsshowthatthereexistsawidedistributionrangeincellularspacingunderultra-hightemperaturegradientandrapidsolidificationconditionsandtheaveragespacingdecreasewithincreaseofthegrowthrate.TheexperimentalresultsarecomparedwiththecurrentKGTmodelforrapidcellular/dendriticgrowth,andareasonableagreementisfound.

简介：异步的滚动技术被采用为积累的十通行证感冒滚动，凸缘板钢，并且为焊接H节钢分别地。metallographic微观结构分析，张力的测试和退火的测试为冷卷的片被执行；因此，到谷物，张力的力量，在谷物尺寸之间的关系和在退火以后的异步的滚动过程参数的宽度的长度的比率能被获得。在异步的滚动和卷的片的砍的变丑之间的关系能使异步的滚动可以改进的机制的合理解释成为紧张的试验性的结果表演积累了卷的片的精力和凸缘板钢的力量。这份报纸为在改进凸缘板钢的力量的异步的滚动的申请提供一个理论基础。

简介：镁为生物医学的应用作为革命可被细菌破坏的金属被建议了。然而，镁的腐蚀太快速，不能匹配织物愈合的率并且另外，展出局部性的腐蚀机制。因此为他们的实际使用控制镁的腐蚀行为是必要的。这篇论文包括地在代表性的镁的开发考察研究进步基于合金，包括象体积一样的Mg-Ca，Mg-Sr，Mg-Zn和Mg-REE合金系统金属性的玻璃。他们的微观结构，机械性质和腐蚀行为上的alloying元素的影响被总结。机械并且腐蚀性质做镁合金也演员组合金与那些比较被讨论。而且，这评论也盖住为生物医学的应用在镁合金上在可能减解的涂层的领域里执行的研究。钙磷酸盐和可被细菌破坏的聚合物涂层基于使用的不同准备技术被讨论。我们也在镁合金底层的腐蚀行为上比较不同涂层的效果。

简介：Thisstudydealtwiththeelectrostrictiveresponsesofpolyurethane(PU)actuatorswithdifferentmicrophaseseparationstructure,whichwasapromisingcandidateforamaterialusedinpolymeractuators.InordertoconstructPUswithdifferenthigher-orderstructure,PUswithvarioustypesofpolyolweresynthesized:poly(neopentylglycoladipate)(PNAD),poly(tetramethyleneglycol)(PTMG),andpoly(dimethylsiloxnae)(PDMS).SynthesizedPUwascharacterizedbyFouriertransform-infrared(FT-IR)spectroscopyandgelpermeationchromatography(GPC).ThermalanalysisandmechanicalpropertiesofPUfilmswerecarriedoutwithdifferentialscanningcalorimetry(DSC)andUTM(universaltestingmachine),respectively.AndPUactuatorwasformedinatypeofmonomorph,whichwasmadebycarbonblackelectrodesonthebothsurfacesofPUfilmbyspincoatingmethod.ActuationbehaviorwasmainlyinfluencedonmicrophaseseparationstructureandmechanicalpropertyofPU.Inresult,PUactuatorwithPNAD,polyesterurethane,hadthelargestfield-induceddisplacement.

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简介：称片的方法被用来调查不同水泥(灰)浆的不饱和的水运输。锋利的弄湿前面存在在期间的试验性的结果表演浇运输，运输能被一个非线性的散开方程描述，；搬运有水的各种各样的规则材料满足的不同材料展览的系数。所有各种各样的水里的水泥(灰)浆的苍蝇灰减少运输系数的增加满足，甚至变化运输机制。

简介：现在的学习为胰岛素的控制版本在综合瞄准thermosensitivehydrogel。根据一个修改方法，hydroxybutylchitosan(HBC)hydrogel拥有了热敏感被准备它能在25T上形成hydrogel在

简介：Graphene由于它的非凡的物理、化学的性质在许多应用与大潜力作为新碳nanoform出现了。特别，graphene和它的衍生物也作为新部件在生物医学的领域里正在获得很多兴趣为生物传感器，织物工程，和药交货。这评论介绍graphene，graphene的简历效果和它的衍生物的唯一的性质，特别和房间的他们的相互作用和为癌症诊断和治疗的基于graphene的生物传感器和nanomedicines的发展。

简介：Fluoropolymeranddifferentkindsofsilicaparticleswereusedforcontrollingsurfacechemistryandmorphology,respectively.Asuperhydrophobicsurfaceoriginatedfromstrawberry-likeorquincunx-shapedcompositesilicaparticleswasobtained.Thedualsizeparticlesareobtainedbyutilizingthegraftofdifferentmodifiedsilicaparticleswithepoxyfunctionalgroupandaminefunctionalgroup.Thismakesthesurfaceoffilmformacompositeinterfacetohaveirregularbinarystructurewhichplaysanessentialroleintrappingairbetweenthesubstratesurfaceandtheliquiddropletstobenecessaryforhighcontactangleandlowcontactanglehysteresis.Themaximumcontactangleforwateronthehybridfilmisabout174±2°andthecontactanglehysteresisislessthan2°.Thesurfacemorphologies,roughnessandthewettabilityonthesurfaceoffilmscontainingdifferentstructuralsilicaparticleswerecompared.Itwasshownthatthehierarchicalirregularlystructurewithalowroughnessfactorandhighair-trappedratioisindispensableforsuperhydrophobicsurface.Althoughthisstructuralsurfacesbasedoncompositesilicaparticlesplayavitalroleingoverningthesurfacewettability,itisnecessarytocombinewithalowsurfaceenergytomakethesurfacesuperhydrophobic.

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简介：Machinetoolhasbeenwidelyusedintheproductionofthemilitaryandcivilian.Themachiningprecisionoftheworkpieceisthedirectreflectionforthemachiningperformanceofmachinetool.Withtheimprovementforrequirementofthemachiningprecision,improvingtheaccuracyofmachiningisbecomingimportant.Guidewayandspindlearethekeymotioncomponentsthatdecidedtheshape,therelativepositionandthesurfaceroughnessoftheworkpiece.Inordertoadapttotherequirementsoftheworkpiecemachining,thispaperanalyzestheerrorsofguidewayandspindlethataffecttheaccuracyoftheprocessing,establishesthemotionrelationsforeveryerrorsofguidewayinmachiningprocess,identifiestheregularforthestraightness,bendingoftheguidewayandrotatingerrorofspindlethatinfluencestheworkpiecesurface.Finally,accordingtothecorrelationanalysisofthemeasuredandthesimulationresults,themotionerrorofmachinetoolisidentified,whichlaysthefoundationforimprovingtheaccuracyofmachinetoolinnextstep.

简介：ThefracturetoughnessandfractureworkofAl2O3/SiCprismaticceramiccompositeswasevaluatedinthispaper,whichshowedthefractureenergywasimprovedgreatly.Basedontheobservationforcrackpropagationandfracturemorphology,thefracturebehavioroftheprismaticcompositeswasanalyzed.Inthebendingtest,thecompositesdisplayedanon-catastrophicbehaviorandagracefulfailurewithreasonableload-carryingcapability.

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简介：Diamond-likecarboncoatingshavebeenusedassolidlubricatingcoatingsinvacuumtechnologyfortheirgoodphysicalandchemicalproperties.Inthispaper,thehybridtechniqueofunbalancedmagnetronsputteringandplasmaimmersionionimplantation(PIll)wasadoptedtofabricatediamond-likecarbon-basedfunctionallygradientfilm,N/TiN/Ti(N,C)/DLC,onthe304stainlesssteelsubstrate.ThefilmwascharacterizedbyusingRamanspectroscopyandglancingX-raydiffraction(GXRD),andthetopographyandsurfaceroughnessofthefilmwasobservedusingAFM.Themechanicalpropertiesofthefilmwereevaluatedbynano-indentation.Theresultsshowedthatthesurfaceroughnessofthefilmwasapproximately0.732nm.Thehardnessandelasticmodulus,fracturetoughnessandinterfacialfracturetoughnessofN/TiN/Ti(N,C)/DLCfunctionallygradientfilmwereabout19.84GPa,190.03GPa,3.75MPa.m1/2and5.68MPa@m1/2,respectively.ComparedwiththatofDLCmonolayerandC/TiC/DLCmultilayer,thisDLCgradientfilmhasbetterqualitiesasasolidlubricatingcoating.

简介：交流阻抗是一个新方法由电气化学的参数的变化在水和和水泥浆糊的变硬的过程期间学习毛孔结构和水和度的变化。采用的交流阻抗方法，我们与苍蝇灰和炉渣学习了水和和水泥浆糊的变硬的过程，并且在阻抗参数上分析了不同水和年龄，水文件夹比率和矿物质混合的影响。而且，我们由测试方法和X光检查衍射的常规孔把结果与那些作比较方法。结果证明那交流阻抗能在水泥和具体研究作为一种新技术被拿。