简介：“2008年底将采用美国AppliedMaterialsInc．（AMAT）的方案，生产薄膜硅太阳能电池。2011年的产能将达到2GW”。

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.

简介：采用逐层自组装方法，利用三乙烯四胺盐对纳米TiO2的吸附作用，把直径约20nm的TiO2颗粒逐层组装到聚偏氟乙烯（PVDF）膜表面，研究了纳米TiO2组装层数对PVDF改性膜接触角的影响，发现当组装层数为1和3时改性PVDF膜初始接触角略有增大，而随着冻结时间延长改性PVDF膜接触角显著减小。当组装层数为5时PVDF改性膜的初始接触角从101．2°显著减小到72．1°，并在1min内被水滴完全浸润，探讨了纳米TiO2组装PVDF改性膜微观结构对其亲水性能的影响机制。研究结果可用于发展分散均匀的高亲水性PVDF膜，提高PVDF膜的抗污染性能并延长其循环使用寿命。

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简介：Thedevelopmentofconvenientmethodtoobtaingraphene-basednanocompositesisakeyissuefortheirapplication.Herein,wedescribedafacilerouteforsynthesizinggraphene-Cuandgraphene-Cu2Onanocompositesusinggrapheneoxide-CuOasaprecursor.Remarkably,thedifferentnanocompositescouldbeformedjustbyvaryingthereactiontemperatureandtime.Thisworkprovidesafeasiblerouteforthepreparationofgraphene-basednanocompositeswithvariousconstituents.

简介：应用COMSOLMultiphysics4．3a模拟软件，结合Maxwell电磁场理论，首先理论推导高斯光束的产生原理，得出基于Kretschmann棱镜耦合系统下的Cu2S量子点溶液，模拟进行852nm稳态激光器的高斯光束照射时产生表面等离激元（SPR），改变量子点的基本属性以及改变入射光角度，模拟出在不同条件下Cu2S量子点产生SPR信号的情况，为Cu2S量子点在SPR传感方面的应用提供了理论依据和参考。

简介：简述了软化学制备技术的定义和特点，重点综述了几种重要的软化学制备技术包括溶胶-凝胶法、Pechinic法、共沉淀法、水热法、聚合物热分解法等在LiMn2O4粉体制备中的进展，对上述工艺技术的特点进行了评述，对LiMn2O4粉体的软化学制备技术发展趋势进行了展望。

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简介：为了提高方镁石-尖晶石砖性能，以电熔镁砂、镁铝尖晶石、金属铝粉和板状刚玉为原料来制备方镁石-尖晶石材料。研究了金属铝粉和板状刚玉添加量对材料体积密度、显气孔率、高温抗折强度、抗热震性的影响。结果表明：随着金属铝粉加入量的增多，材料烧结性能得到提高，加入金属铝粉时材料的高温抗折强度变大，加入金属铝粉1．5％时抗热震性最好；加入板状刚玉2％时烧结性能和抗热震性最好，加入4%板状刚玉时材料的高温抗折强度最大。

简介：以FeCl3为铁源，油酸和NaOH为表面活性剂，乙醇为还原剂，在水热条件下于180℃反应10h，合成了α-Fe2O3（hematite）纳米晶，对产物进行X射线衍射（XRD）和透射电镜（TEM）分析，结果表明，该产物纯度较高，平均粒径约为20nm。将该产物作为锂离子电池负极材料并组装为锂离子电池后进行充放电性能测试，发现其首次放电曲线比较特殊，且容量达到1280mAhg^-1，使得该材料成为潜在的锂离子电池负极材料。

简介：Thisstudywasconductedtodiscusstheeffectofrollingstrainonmicrostructureandtensilepropertiesofdual-phaseMg-8Li-3Al-2Zn-0.5Y(wt%)alloy,whichwaspreparedbycasting,andthenhomogenizedandrolledat200℃.Therollingprocesswasconductedwith10%reductionperpassandfivedifferentaccumulatedstrains,varyingfrom10%to70%.Theresultsindicatethattheas-castandas-rolledMg-8Li-3Al-2Zn-0.5Yalloysarecomposedofα-Mg,β-Li,AlLiandAl2Yphases.Afterrollingprocess,anisotropicmicrostructurewasobserved.a-Mgphasegotelongatedinbothrollingdirectionandtransversedirectionwiththeadditionofrollingstrain.Consequently,thestrengthofthealloyinbothdirectionswasnotablyimprovedwhereastheelongationdeclined,mainlycausedbystrainhardeninganddispersionstrengthening.Thetensilepropertiesoftheas-rolledalloysintheRD,nomattertheYS,UTSortheelongation,arehigherthanthoseoftheTDduetotheirlargerdeformationstrainandsignificantanisotropyinthehcpα-Mgphase.Inaddition,thefractureandstrengtheningmechanismofthetestedalloyswerealsoinvestigatedsystematically.

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简介：以川西微晶白云母为主要原料，铝粉为还原剂，采用铝热还原氮化法合成了α-Al2O3／β-SiAlON材料，并利用X射线衍射仪（XRD）研究了不同温度下的物相变化及配铝量对反应产物的影响。结果表明：在1350℃和1450℃,所有样品的主要产物均为α-Al2O3和β-SiAlON相，但铝粉用量为35％（质量分数，下同）的样品经1350℃铝热还原氮化后的产物中含β-SiAlON相较多；当铝粉用量和加热温度分别为45％和1550℃时，反应产物中不含α-Al2O3和β-SiAlON相，却出现了AlON、AlON和Si3Al7O3N9相。

简介：WithFe(NO3)39H2OandBi(NO3)35H2Oasrawmaterials,differentsillenite-typecompoundsandelementalbismuthwerepreparedbyafacileone-potsolvothermalmethodusingH2O,C2H5OH,(CH2OH)2andC3H8O3assolvents,respec-tively.Thestructure,morphology,elementalcompositionsandpropertiesofsampleswereexaminedbyXRD,SEM,TEM,ICP,XPS,N2adsorptionanddesorption,UV-visDRSandPL.ThephotocatalyticactivitiesofdifferentsampleswereevaluatedbythephotodegradationofRhBundervisible-lightirradiation(λ>400nm),andresultsshowthatBi36Fe2O57preparedusingC2H5OHasthesolventownstheoptimumperformance.Inordertoexplorethereactionmechanism,anadditionalexperimentwasdesignedtoinvestigatethemainactivespeciesduringthephotodegradationprocessviadissolvingdifferenttrappingagentsinthereactionsolutionbeforelightirradiation.TheresultsshowthatsuperoxideradicalanionsplayamajorroleinthissystemsincetheRhBdegradationwassignificantlysuppressedaftertheadditionofbenzoquinone.

简介：染料敏化太阳能电池具有生产工艺简单、成本低廉、环境友好等优点,吸引了国内外研究者的广泛关注.综述了TiO2形貌结构设计在DSSC中应用的研究进展.根据光阳极TiO2薄膜层数总结了形貌结构设计的种类和制备方法,并分析了其对太阳能电池光电转换效率的影响.

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简介：Highentropyalloyhasattractedincreasingattentions.However,toenhancethealloystrengthoftenleadstoimpairmentoftheductility,orviceversa.HerewereportedaheattreatmentapproachonAlCrFeNi2Ti0.5highentropyalloy,whichcanelevatethestrengthandductilitysimultaneously.AningotofAlCrFeNi2Ti0.5weighing2.5kgwasfirstlyfabricatedbymediumfrequencyinductionmelting.Thensamplesfromthesameheightofthebulkingotwereannealedfor6hat600,700,800and1000℃,respectively.After1000℃annealing,anoptimalmicrostructurewasobtainedbyusingourapproachwhichcanmakesomeprecipitationparticlesdistributehomogeneouslyinthedendriteinteriorwhilekeeptheinterdendritestructureasasinglesolidsolutionphase.ThemechanicaltestonthisAlCrFeNi2Ti0.5alloysampleshowedthat,thecompressivefracturestrengthσbcwasincreasedbyabout600MPaandtheplasticstrainepwasdoubled,comparedwiththoseoftheas-castsample.Ourapproachcanbereadilyadaptedtolarge-scaleindustrialproductionofhighentropyalloyswithhighstrengthandductilitybyproperannealingtreatment.

简介：流的温度和时间在离心的扔期间是界面的反应上的最重要的影响因素。当在高温度扔了时，坩锅变得对裂开易碎、容易，并且显示出低稳定性。在这份报纸，我们学习了Ti-47.5-Al-2.5V-1Cr合金的离心的扔，并且探索了在界面的反应上倒温度的效果。铸造物在1600，1650，和1700？？

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