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简介：Biocompatible聚合电解质multilayers(PEM)和polysiloxane混血儿涂层被准备改进可被细菌破坏的Mg合金AZ31的腐蚀抵抗。PEM，包含了poly轮流出现，并且poly(allylaminehydrochloride)(哼)，是第一在经由静电的相互作用的AZ31合金底层的表面上自我装配，是指明了(PAH/PSS)5/AZ31。然后，(PAH/PSS)5/AZ31样品被蘸进制作PMTMS的答案拍摄的methyltrimethoxysilane(MTMS)，指定了为PMTMS/(PAH/PSS)5/AZ31。表面形态学，微观结构和这些电影的化学作文被FE-SEM，FTIR，XRD和XPS调查。Potentiodynamic极化，电气化学的阻抗光谱学和氢进化大小证明合成电影显著地提高了的PMTMS/(PAH/PSS)5/AZ31在丝等的AZ31合金的腐蚀抵抗平衡盐答案(HBSS)。PAH和PSS电影有效地包括Ca3(PO4)2和hydroxyapatite改进了帽子混合物的免职(哈)。而且，合成涂层的腐蚀机制被讨论。这些涂层能是为可被细菌破坏的Mg合金的其他的候选人涂层。

简介：在过去的十年，nanopores为各种各样的潜在的应用程序广泛地被开发了，并且他们的性能极大地取决于nanopores的表面性质。原子层免职(ALD)是为扔薄电影的一种新技术，它很快从一种壁龛技术被开发了到一个确定的方法。ALD电影能保角地甚至在nanoscale在限制区域盖住表面，因此，是一个强大的工具修改合成nanopores并且也的表面制作复杂nanopores被证明。这评论在nanopore合成和ALD基本知识上给简短介绍，然后集中于由ALD和他们的应用程序处理的合成nanopores的各种各样的方面，包括单个分子的察觉到，nanofluidic设备，nanostructure制造和另外的应用程序。

简介：TheeffectofseedlayerontheorientationofZnOfilmwasinvestigated.BeforethepreparationofZnOfilmusingsol-gelmethod,seedlayerofZnOwaspreparedinasimilarwayusingtheprecursorataratherlowconcentration.ExperimentsshowthattheexistenceofseedlayercanimprovetheorientationofthefinallypreparedZnOfilm,whilebakingtemperature,bakingtimeandprecursorconcentrationallhaveeffectsonthefinalresults.

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简介：TheironrustphasesformedonIowalloysteelscontainingdifferentquantitiesofCrelementhavebeencharacterizedusingEPMA,Ramanspectroscopy,TEM,opticalmicroscopyetc.Theionselectivepropertiesofsynthesizedrustfilmswiththesamephaseconstituentastheatmosphericcorrosionproductswereinvestigatedusingself-madeapparatus.TheresultsshowedthatcorrosionlossofsteelsexposedinmarineatmospheredecreasedrapidlyastheCrcontentofthesteelwasincreased.Cr-containingsteelswerecoveredbyauniformcompactedrustlayercomposedoffineparticleswithanaveragediameterofseveralnanometers.InnerrustlayerofCr-containingsteel(2massfraction)wascomposedofα-CrxFel-xOOH,withCrcontentofabout5massfraction.Suchrustlayershowedcationselectiveproperty,andcoulddepressthepenetrationofCl-tocontactsubstratesteeldirectly.

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简介：一种熄灭水的技术被采用了评估多孔的Si3在空气气氛的N4陶艺。高孔的Si3因为它毛孔的角色，到热吃惊的更高的力量保留和一个更好的电阻作为裂缝arresters使疲劳的N4陶艺展览。然而，稠密、协调的表面氧化物层在热疲劳期间在剩余力量导致一个重要好处尽管更厚的氧化物层介绍，到第30周期的一个增加的疲劳数字不能引起进一步的影响，它被归因于洞缺点和部分intergranular的消失阶段。

简介：这评论由层(LBL)集中于层基于集会的nano生态的传感器(此后，eco传感器)为杀虫剂察觉，它是最万用的方法之一。人的健康上并且在环境(空气，水，土壤，植物，和动物)上的杀虫剂的效果由于他们的增加的使用担心大。我们加亮二个最流行的检测方法，即，荧光和一个LBL集会上的杀虫剂的电气化学的察觉。荧光材料具有在为他们的敏感和可靠察觉的研究人员之中的大兴趣，并且电气化学的过程允许我们在分子的水平在LBL电影通过费用转移机制在电影部件之中调查synergistic相互作用。然后，我们为察觉到系统的不同类型的开发注意了一些未来的方向。

简介：Two-stepgrowthregimeswereappliedtorealizeahomoepitaxialgrowthofZnOfilmsonfreestandingdiamondsubstratesbyradio-frequency(RF)reactivemagnetronsputteringmethod.ZnObuerlayersweredepositedonfreestandingdiamondsubstratesatalowsputteringpowerof50W,andthenZnOmainlayerswerepreparedonthisbufferlayeratahighsputteringpowerof150W.Forcomparison,asamplewasalsodepositeddirectlyonfreestandingdiamondsubstrateatapowerof150W.TheeffectsofZnObufferlayersonthestructural,optical,electricalandmorphologicalpropertiesoftheZnOmainlayerwerestudiedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),Ramanspectroscopy,semiconductorcharacterizationsystemandatomicforcemicroscopy(AFM)respectively.Theexperimentalresultssuggestedthathomo-bufferlayerwashelpfultoimprovethecrystallinequalityofZnO/diamondheteroepitaxialfilms.

简介：Aporosity-freeandcontamination-freesurfacelayerwithgrainsizesrangingfromnanometertomicrometerinFesampleswasobtainedbysurfacemechanicalattritiontreatment(SMAT)technique.MechanicalandwearpropertiesofthesurfacelayerintheSMATedandannealedFesamplesweremeasuredbymeansofnanoindentationandnanoscratchtests,respectively.ExperimentalresultsshowedthatthehardnessofthesurfacelayerintheSMATedFesampleincreasedevidentlyduetothegrainrefinement.TheelasticnoduliofthesurfacelayersintheSMATedandannealedFesampleswereunchanged,independentofgrainsizeinthepresentgrainsizeregime.ComparedwiththeoriginalFesample,thewearresistanceenhancedandthecoefficientoffrictiondecreasedinthesurfacelayeroftheSMATedFesample.

简介：Lowtemperaturecompositechromizingisaprocesscomposedofaplainion-carbonitridingorion-nitridingat550～580℃,followedbyalow-temperaturechromizinginasalt-bathof590℃.ThemicrostructureandpropertiesofthelowtemperaturecompositechromizedlayeronH13toolsteelwereinvestigatedusingmetallography,X-raydiffraction,microanalysis,hardnessandweartests.Itwasfoundthatthislowtemperatureprocesswasthermodynamicallyandkineticallypossible,andthecompositechromizedlayeronH13steel,withathicknessof3～6μm,consistedofthreesub-layers(bands),viz.theouterCr-richone,theintermediate(black)one,andtheinner,originalwhitelayer.Afterchromizing,theformerdiffusionlayerwasthickened.TheresultsofX-raydiffractionshowedthatthecompositechromizedlayercontainedsuchnitridesandcarbidesofchromiumasCrN,Cr2N,(Cr,Fe)23C6,and(Cr,Fe)7C3,aswellasplainα-(Fe,Cr).Ahighsurfacemicrohardnessof1450～1550HV0.025,whichismuchhigherthanthatobtainedbytheconventionalioncarbonitridingandionnitriding,wasobtained.Inaddition,anexcellentwearresistancewasgainedonthecompositechromizedlayer.

简介：Theinternalstressinducedbyaporouslayerorpassivelayercanassisttheappliedstresstopromotedislocationemissionandcrackpropagation,e.g.whenthepipelinesteelisburiedinthesoilcontainingwater,resultinginstresscorrosioncracking(SCC).Moleculardynamics(MD)simulationisperformedtostudytheprocessofdislocationemissionandcrackpropagationinaslabofFecrystalwithandwithoutaporouslayeronthesurfaceofthecrack.Theresultsshowthatwhenthereisaporouslayeronthesurfaceofthecrack,thetensilestressinducedbytheporouslayercansuperimposeontheexternalappliedstressandthenassisttheappliedstresstoinitiatecracktipdislocationemissionunderloweredstressintensityKI,orstress.Torespondtothecorrosionaccelerateddislocationemissionandmotion,thecrackbeginstopropagateunderloweredstressintensityKI,resultinginSCC.

简介：Frequency-doubledantireflectioncoatingssimultaneouslyeffectiveat1064nmand532nmweredepositedonthelithiumtriborate(LiB3O5orLBO)crystalsusingtheelectronbeamevaporationmethod.Comparingwiththesamplewithoutbufferlayer,itisfoundthattheadhesionofthesamplewithbufferlayerofSiO2betweencoatingandLBOsubstrateisimprovedsignificantlyfrom137.4mNtogreaterthan200mN.Andthelaser-induceddamagethresholdisincreasedby20%from15.1J/cm2to18.6J/cm2.ThestrengtheningmechanismofadhesionofthebufferlayerofSiO2isdiscussedbyconsideringfullplasticindentationandsheartheory.

简介：Silicide涂层被泥浆包硬化进程为把SiO2用作纯艾尔Si来源的12h在1173K在铜矩阵上在electro-deposited镍层上作好准备作为reducer搽粉，NaF+NH4Cl和蛋白(鸡蛋白人)是连贯的代理人。微观结构，性质和silicide涂层的siliconizing机制被讨论。有220μm厚度的silicide涂层主要是的试验性的结果表演Ni2Si阶段和Ni31Si12阶段。它的吝啬的微坚硬(HV790)比铜底层(HV70)的是十次。磨擦的系数从0.8纯铜减少到大约0.3硅Z样品。SiF2,SiCl2和SiCl3在泥浆包装硬化过程期间为Si的交通和免职负责。

简介：礼品客观工作到过决定中立的盐水花的影响wear抵抗上的腐蚀HVOF喷洒的NiCr-Cr3有中介的C2涂层层。Ni-Zn-Al2O3涂层当夹层被低压力准备在NiCr-Cr之间的寒冷水花(LPCS)3形成三明治结构提高腐蚀抵抗性质的C2金属陶瓷涂层。tribological性质被检验使用UMT-3fricition并且由互给滑动在下面的线接触穿测试者干燥、咸的水花一星期腐蚀。涂层的形态学，元素分发，和阶段作文并且穿sufaces被使用扫描电子分析显微镜学，精力散spectrometry，和X光检查衍射分别地。涂层的腐蚀行为被学习旁边开电路的潜力，电气化学的阻抗光谱学，potentiodynamic极化，和盐喷洒腐蚀方法。它被发现三明治组织了涂层，这有更好的腐蚀抵抗与比单个层涂层。结果表演那在下面干燥穿条件，wear机制是磨料并且粘合剂穿，而在盐水花腐蚀条件下面它成为腐蚀穿。组织的三明治的磨擦系数在盐水花腐蚀以后的涂层比干燥磨擦稍微低wear的系数，而是重量损失在干燥状况下面是比那低的。

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简介：TheinteractionbetweenZn-AleutecticalloyandAl2O3p/6061Alcompositesinthevacuumfurnacewasinvestigated.Greatattentionhasbeenpaidtotheelementsdiffusion,themicrostructureandformationoftheinterfacebetweenZn-AIeutecticalloyandAl2O3p/6061Alcomposites.ExperimentalresultsshowthatZn-AleutecticalloyhasagoodwettingabilitytoAl2O3p/6061Alcompositesandthewettingangledecreaseswithincreasingthetemperatureinvacuum.Aftertheinteraction,aninteractionlayerformsbetweenZn-AIalloyandAl2O3p/6061Alcomposites.Thephasesintheinteractionlayermainlyconsistofα-Al(Zn),Al2O3andCuZn5resultedfromthediffusionofelementsfromtheZn-Alalloy.SeveralporositiesdistributeintheregionneartheinterfaceoftheZn-Alalloy/interactionlayer.TheamountofshrinkagevoidsintheinteractinglayerisrelevanttothepenetrationofZnelementintoAl2O3p/6061Alcompositeswhichisafunctionoftemperature.SoitisnecessarytolowerheatingtemperatureinordertolimittheZnpenetration.

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