简介:对飞秒激光抽运探测热反射实验中的一个关键因素传感层进行了研究,发现铝传感层的蒸镀速率对飞秒激光抽运实验有着很大的影响。分别在3种不同类型的硅片和玻璃片基底上用不同的蒸镀速率蒸镀了100nnm的铝膜蒸镀速率控制在2×10^-10到15×10^-10m/s。通过扫描电子显微镜(SEM)和X射线反射(XRR)研究了蒸镀铝膜表面的形貌及铝膜的厚度。基于飞秒激光抽运探测热反射方法对基底的热导率进行了测量,发现随着蒸镀速率的增大,不同基底测量得到的热导率呈现一致的规律。结果表明,蒸镀速率越大,铝传感层的晶粒越大,传感层的体积热容越小,当蒸镀速率大到一定程度时,由于晶粒的不规则度越来越大,反过来又影响体积热容的大小,从而影响了飞秒激光抽运探测热反射。
简介:美国海军研究实验室(NavalResearchLaboratories)的A.Pique联同研究人员,开发了名为“凝结物辅助激光蒸镀(MatrixAssistedPulsedLaserEvaporation)”的沉积工艺,该工艺适用於聚合物、糖或碳水化合物等有机物质。英国曼彻斯特都市大学(ManchesterMetropolitanUniversity)化学及材料学系高级讲师DrWaqarAhmed,
简介:Compositeplatingcontainingnanometer-sizedparticlesfromanon-aqueouselectrolyte;CompositeplatingofNi/SiCusingazo-cationicsurfactantsandwearresistanceofcoatings;Developmentofrapidcompositeplatingsystemformotorcycleenginecylinders;DynamicResponseofLaminatedCompositePlateusingFirstOrderShearDeformationTheory
简介:[篇名]InfluenceofWCadditionanmicrostructuresoflaser-meltedNi-basedalloycoating,[篇名]MicrostructureanddryslidingwearbehavioroflasercladNi-basedalloycoatingwiththeadditionofSiC,[篇名]PreparationofAdvancedLithiumSecondaryBatterieswithTin-IronAlloyPlatingAnodesandTheirCharge-DischargeBehaviors,[篇名]SnAg-alloycoatingforconnectorsandsolderingapplications,[篇名]Structureandpropertiesofwear-resistanttitaniumcarbonitride-basedcoatings,[篇名]TheanalysisofthedepositionmechanismofZn/NialloyplatingusinganEQCM,[篇名]Theeffectofheattreatmentonwearresistanceofpartshavinghard-alloycoating.
简介:AdvancedLithiumSecondaryBatteriesUsingTin-IronAlloyNegativeElectrodesPreparedbyElectroplating;CavitationerosionofTi-Nishapememoryalloycoating;Effectsoffueldyeonthehotcorrosionresistanceofmarinegasturbinematerials;EffectsofphosphorouscontentsandambienthumidityonthefrictionandwearpropertiesofNi-W-PalloyplatingFrictionandwearofelectrolessNialloyplatedgearundernon-lubricationconditioninhighvacuum
简介:AdvancesinEnhancedBoilingtteatTransferFromElectronicComponents;AFMstudyofultrathintri-blockcopolymerfilmsontailoredgraftedpolymerlayer;AirConditionerInverterforElectricVehicle;Aneffectofinertgasonsurfacefihnformationandwoltagedlopofslidingcontacts;Analysisofahomopolardiskgeneratorviaequivalentnetwork
简介:[篇名]AFrameworkforTransferColorsBasedontheBasicColorCategories,[篇名]Agraphicaltabletusingthermalsensor,[篇名]AMethodforOptimisingtheWeightandResponseofBrush-TypeWound-FieldDirectCurrentMotors,[篇名]Anumericalstudyofweaklyturbulentpremixedcombustionwithflamespeedclosuremodel,[篇名]Astrongerstartyieldsasmootherfinish,[篇名]Astudyofbrushghostmarkinthedeformationring,[篇名]Astudyontiremodelingforcamberthrustandcambertorque.