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1、122Propellants,Explosives,Pyrotechnics33,No.2(2008)FullPaperNanoenergeticCompositesofCuONanorods,Nanowires,andAl-NanoparticlesRajeshShende,SenthilSubramanian,ShameemHasan,StevenApperson,RajagopalanThiruvengadathan,KeshabGangopadhyay,ShubhraGangopadhyay*Depart
2、mentofElectricalandComputerEngineering,UniversityofMissouri,Columbia,MI65211(USA)PaulRedner,DeepakKapoor,StevenNicolich,WendyBalasUSArmyARDEC,PicatinnyArsenal,NJ07806(USA)Received:November16,2006;revisedversion:May22,2007;Ms2006/140DOI:10.1002/prep.200800212A
3、bstractbetweentheoxidizerandthefuelisdesiredtoachievehigherenergyreleaserates[1].ThecompositessynthesizedThispaperreportsonthesynthesisofthenanoenergeticviaphysicalmixing[2],sol–gelsynthesis[3],etc.possessacompositescontainingCuOnanorodsandnanowires,andAl-ran
4、domizeddistributionofoxidizerandfuelandthuslowernanoparticles.Nanorodsandnanowiresweresynthesizedusinginterfacialcontactareaandhencecombustionwavespeeds.poly(ethyleneglycol)templatingmethodandcombinedwithAl-nanoparticlesusingultrasonicmixingandself-assemblyme
5、thods.Therefore,byhomogenizingthedistributionofafuelPoly(4-vinylpyridine)wasusedfortheself-assemblyofAl-nano-aroundanoxidizer,therateofenergyreleaseorpropaga-particlesaroundthenanorods.Attheoptimizedvaluesoftionofcombustionwavefrontcanbesubstantiallyenhancede
6、quivalenceratio,sonicationtime,andAl-particlesize,the1duetoanincreaseinthecontactingarea.Thiscanbecombustionwavespeedof1650mswasobtainedforthenanorods-basedenergetics.Forthecompositeofnanowiresandachievedbyultrasonicmixingorself-assemblyprocesses[4,15].Duri
7、ngultrasonicmixing,however,therecouldbeaAl-nanoparticlesthespeedwasincreasedto1900ms.The1maximumcombustionwavespeedof2400mswasachievedfordangerofparticledisintegrationandsinteringofnano-theself-assembledcomposite,whichisthehighestknownsofarparticles.Inthesel
8、f-assemblyapproach,fuelnanoparticlesamongthenanoenergeticmaterials.Itispossiblethatintheself-canbearrangedinanorderlymanneraroundoxidizersandassembledcomposites,theinterfacialcontactbetwe
