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ÖÐͼ·ÖÀàºÅ:TB£³£³£±¡¡¡¡¡¡ÎÄÏ×±êÖ¾Âë:A¡¡¡¡¡¡ÎÄÕ±àºÅ:£±£°£°£°£Ç£³£·£³£¸(£²£°£±£·)£±£±£Ç£°£°£±£¹£Ç£°£´

CNTs/AlInterfacialReactionDegreeandtheRelationshipwith

MechanicalPerformanceofComposite

LIZhongwen£±,LINRenbang£²,HULi£²,YUZiyun£³,YANLaipeng£³,TANZhanqiu£³,

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(£±£®CRRCQingdaoSifangCO£®,LTD£®,Qingdao£²£¶£¶£±£±£±,China;

£²£®ShanghaiInstituteofAerospaceSystemEngineering,Shanghai£²£°£±£±£°£¸,China;

£³£®StakeKeyLaboratoryofMetalMatrixComposites,ShanghaiJiaotongUniversity,Shanghai£²£°£°£²£´£°,China)

Abstract:Theevolutionofinterfacialreactiondegreewithdifferentsinteringtimeofmassfraction£²£¥

CNTs/£µ£°£¸£³Alcomposite was studied by the electrochemical dissolution£Çgas chromatography method£®The

relationshipofinterfacialreactiondegreeand mechanicalperformancewasdiscussed£®Theresultsshowthatwithsinteringtimeincreasingfrom£±hto£¶h,interfacialreactiondegreeof£²£¥CNTs/£µ£°£¸£³Alcompositeincreasedfrom£µ£®£µ£¥to£²£´£®£±£¥ 

andshowedacertainlinearrelationshipwithsinteringtimewhenthecompositewassinteredat£µ£·£°¡æ£®Young′smodulus,yieldstrengthandtensilestrengthofthecompositeincreasedatfirstandthendecreased,

whiletheelongationdecreasedslightlyatfirstandthenincreasedcontinuouslywiththeincreaseofsinteringtime£®

Key words:Carbon nanotube;aluminum matrix composite;interfacialreaction degree; mechanical

performance

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