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1、石墨烯增强铝基纳米复合材料（Graphenereinforcedaluminananocomposites）Graphenenanometersaretwo-dimensionalmaterialsofthethicknessofasingleatomiclayermadeupofsp2hybridcarbonatoms,showingaseriesofunusualphysicalproperties.In2004,Novoselovandother[1]usedtapestrippingmethodtoprepare
2、graphenenano-chipsamplesandcharacterizetheirmicrostructureandphysicalproperties.Graphenenanopiecebecauseofitsspecialtwo-dimensionalstructure,causedtheacademiccirclesstudyphysics,chemistryandmaterialsthegreatinterestofscholars,thebasicresearchandengineeringapplica
3、tionresearchongraphenebecomearesearchhotspotinrecentyears[2].Grapheneisthemosttenacious,conductiveandheat-conductingmaterialfoundtodate.Tomakegraphenemeetengineeringapplicationstateassoonaspossible,theEuropeanUnionin2012tostartthegrapheneflagshiptechnologyproject
4、[3],theUnitedStatesalsovigorouslyinputs,andintheapplicationofgrapheneasasupercapacitorandhasmadebreakthroughprogress[3].Thewetchemicalreductionmethodiseasytorealizethebulkpreparationofgraphenenanoparticles,andtheobtainedgraphenehasbetterhydrophilicandsingledisper
5、sibility,whichistheidealcompositematerialnano-filler[4].Duetothehighstrengthofgraphene,itstensilestrengthcanreachupto1060GPaandhowtouseittoimprovethestrengthofcompositematerialsbecomesaresearchhotspot.Therehavebeenreportsofgraphenenanoparticlesenhancedwith[5]andt
6、heceramicmaterial,[6].Thetensilestrengthofthegraphenenano-chipwith0.7%qualityfractioninpolyvinylalcoholincreasedby76%.ThebendingstrengthofAl2O3ceramicmatrixwith0.78%ofthevolumefractionwasincreasedby30.75%whilethefracturestrengthincreasedby27.20%[6].Butnoreportsof
7、graphene-enhancedmetalmatrixcompositeshavebeenreported.Aluminumalloyhaslowdensity,highstrengthandgoodductility.Ithasbeenwidelyusedinaviation,aerospaceandotherfields.Asastructuralmaterial,howtoimprovethestrengthofaluminumalloyhasbeenthemaindirectionofitsresearcher
8、s.Now,usechangealloysmeltingmethod,controlcomponents,adjustmentmethodssuchasheattreatmentandthedeformationprocessinfurtherimprovingofaluminiumalloyperformancei
