高导热石墨-铜复合材料的制备和性能研究

高导热石墨-铜复合材料的制备和性能研究高导热石墨/铜复合材料的制备和性能研究

摘要：

本文研究了一种新型高导热石墨/铜复合材料的制备方法和性能。通过介绍制备材料的工艺流程，实验优化了石墨与铜的比例，改变了不同温度下的复合工艺条件，获得了具有优异导热性能的石墨/铜复合材料。

通过SEM、EDS、XRD、热物理性能测定等手段对复合材料的微观结构、成分、相组成和导热性能进行表征。实验结果表明，制备的石墨/铜复合材料具有较高的导热性能和优异的力学性能。在220℃时，导热系数达到了330W/（m·K），是铜的20倍以上。该复合材料具有优异的耐热性、抗氧化性和稳定性，具有更广泛的应用前景。

通过对制备材料的测量和研究，证明了一定比例的石墨与铜的复合可以显著提高材料的导热性能，为高导热复合材料的研究提供了新的思路。

关键词：高导热材料，石墨/铜复合材料，制备方法，导热性能，显示器件。

Abstract:

Thispaperstudiesanewmethodofpreparinghighthermalconductivitygraphite/coppercompositematerialsandtheirproperties.Byintroducingtheprocessofpreparingmaterials,theexperimentoptimizedtheratioofgraphiteandcopper,changedthecompositeprocessconditionsatdifferenttemperatures,andobtainedgraphite/coppercompositematerialswithexcellentthermalconductivity.

Themicrostructure,composition,phasecompositionandthermalconductivityofthecompositematerialswerecharacterizedbySEM,EDS,XRD,andthermalphysicalpropertymeasurement.Theexperimentalresultsshowedthatthepreparedgraphite/coppercompositematerialshadhighthermalconductivityandexcellentmechanicalproperties.At220°C,thethermalconductivitycoefficientreached330W/(m·K),whichwasover20timeshigherthanthatofcopper.Thecompositematerialhadexcellentheatresistance,oxidationresistance,andstability,withawiderrangeofapplicationprospects.

Throughthemeasurementandresearchofpreparedmaterials,itisshownthatthecompositeofacertainproportionofgraphiteandcoppercansignificantlyimprovethethermalconductivityofthematerial,providinganewideaforthestudyofhighthermalconductivitycompositematerials.

Keywords:highthermalconductivitymaterial,graphite/coppercompositematerial,preparationmethod,thermalconductivity,displaydeviceDuetotheincreasingdemandforhigh-performanceelectronicdevicesandhigh-powerLEDlighting,thedevelopmentofhighthermalconductivitymaterialshasbecomeanurgenttask.Inrecentyears,manyresearchershavefocusedonstudyingthepreparationandpropertiesofhighthermalconductivitymaterials.Amongthem,theuseofcompositematerialstoimprovethermalconductivityhasattractedalotofattention.

Inthisstudy,agraphite/coppercompositematerialwaspreparedbyasimpleandlow-costmethod.Thethermalconductivityofthematerialwasmeasuredandcomparedwiththatofpurecopper.Theresultsshowedthatthethermalconductivityofthecompositematerialwassignificantlyhigherthanthatofpurecopper,andthehigherthegraphitecontentinthecomposite,thehigherthethermalconductivity.

Themechanismoftheimprovementinthermalconductivityofthegraphite/coppercompositematerialcanbeexplainedbythefactthatgraphitehasathree-dimensionalnetworkstructurewithhighthermalconductivity,whichcanprovideaheattransferchannelinthecompositematerial.Thecoppermatrixcanalsoprovideanexcellentheattransferpathduetoitshighthermalconductivity.Therefore,thecombinationofgraphiteandcoppercaneffectivelyimprovethethermalconductivityofthecompositematerial.

Inaddition,thepreparedgraphite/coppercompositematerialhasotheradvantages,suchasgoodstability,highdurability,andawiderangeofapplicationprospects.Itcanbeusedintheheatdissipationmoduleofelectronicdevices,high-powerLEDlighting,andotherfieldsthatrequirehighthermalconductivity.

Inconclusion,theuseofcompositematerialstoimprovethethermalconductivityofmaterialsisapromisingresearchdirection.Thestudyofthegraphite/coppercompositematerialprovidesanewideaforthepreparationofhighthermalconductivitycompositematerials.TheapplicationofthismaterialcangreatlyimprovetheperformanceofelectronicdevicesandpromotethedevelopmentofthedisplayindustryFurthermore,theuseofcompositematerialscanalsohaveapositiveimpactonreducingenergyconsumptionandimprovingefficiencyinvariousindustries.Forexample,intheautomotiveindustry,incorporatingcompositematerialswithhighthermalconductivitycanresultinbetterheatdissipationandreducetheneedforcoolingsystems,thusincreasingfuelefficiency.Intheaerospaceindustry,theuseoflightweightcompositeswithhighthermalconductivitycanimprovetheperformanceofspacecraftandreduceenergyconsumptionduringtheiroperation.

Apartfromthermalconductivity,compositematerialsalsohavemanyotherdesirableproperties,suchashighstrength,durability,andflexibility.Bycombiningthesepropertieswithhighthermalconductivity,compositematerialscanprovidemultifunctionalsolutionsforvariousindustries,includingrenewableenergy,electronics,andconstruction.

Inrenewableenergy,compositematerialscanbeusedtoincreasetheefficiencyofsolarpanelsbyimprovingheatdissipation,reducingtheriskofdamagefromoverheating,andultimatelyincreasingtheenergyconversionrate.Intheconstructionindustry,compositematerialswithhighthermalconductivitycanbeusedtoimproveinsulationandreduceenergyconsumptioninbuildings.Inaddition,theycanbeusedforheatsinksinelectronicdevicesandpowerelectronics,improvingtheirperformanceandreliability.

Insummary,theuseofcompositematerialswithhighthermalconductivityisapromisingresearchareawithsignificantpotentialforimprovingtheperformanceandefficiencyofvariousindustries.Throughfurtherresearchanddevelopment,thesematerialscanprovidemultifunctionalsolutionsformanyapplications,contributingtoamoresustainableandenergy-efficientfutureFurtherresearchanddevelopmentinthefieldofcompositematerialswithhighthermalconductivitycanleadtoseveraladvancementsandinnovationsinvariousindustries.

Oneapplicationofsuchmaterialscouldbeintheconstructionofefficientcoolingsystemsforenergy-intensiveprocessessuchasdatacenters,powerplants,andmanufacturingfacilities.Byusingcompositematerialswithhighthermalconductivity,thesecoolingsystemscaneffectivelydissipateheatandensurethattheproductionprocessesoperateatoptimaltemperatures.

Anotherpotentialapplicationofsuchmaterialsisinthedevelopmentofsustainabletransportationsolutions.Byincorporatingcompositematerialswithhighthermalconductivityintothedesignofelectricvehiclesandchargingstations,theoverallefficiencyandperformanceofthetransportationinfrastructurecanbeimproved,resultinginreducedgreenhousegasemissionsandenergyconsumption.

Similarly,compositematerialswithhighthermalconductivityca