碳納米管的制備、純化及其復合鍍層研究.pdf

1、湖南大學碩士學位論文碳納米管的制備、純化及其復合鍍層研究姓名：王健雄申請學位級別：碩士專業(yè)：材料物理與化學指導教師：陳小華2002.3.31AbstractCarbonnanotubeshavearousedmanyscientists’InterestsbecauseOtltSremarkablemechanicandelectronicpropertiesSofartheinvestigationofthecarbonnanotub

2、eshasbeenthehotspotofthematerials，physicsandchemistryInthispaperthepreparationandthepurificationofthecarbonnanotubeswasinvestigatedUsingtheCocatalystsproducedbychemicalCOdeposition，thecarbonnanotubesweresynthesizedbythec

3、atalyticchemicalvapordecompositionmethodTheparameterswhichaffecttheyieldofthecarbonnanotubeswerealsostudiedandtheoptimizeparameterwasdeterminedThenthecarbonnanotubeswerepurifiedbycalcinedinasuitabletemperatureaftertheaci

4、dtreatmentBeforethecalcinedprocess，TGAwasusedtodeterminethecalcinedtemperatureBythiswaythecrudewascompletelypurifiedwithoutdestructionandlosingMeanwhile，thepreparationofthecarbonnanotubescompositecoatingwasstudiedinthisp

5、aperThepurecarbonnanotubesweredepositedinthenickelcoatingbythechemicalcompositedepositionmethodandtheinfluenceofsomefactorsintheprocessofthepreparationwasanalyzedInadditiontheexperimentalresearchofthepropertiesofcarbonna

6、notubescompositecoatingsuchasthewearingresistanceandthecorrosionresistancewereinvestigatedinthispaperThewearingmechanismandcorrosionmechanismwerediscussedTheresultofthewearingexperimentshowthatCNTcompositecoatinghaveexce

7、llentwearresistanceAtthesame10adthedryfrictioncoefncientoftheCNTcompositecoatinglowerthanthatofthenickelcoatingandSiCcompositecoatingFromtheresultsoftheweight10ssmethodandelectrochemicalcorrosionexperimentitwasfoundedtha

8、tthepotentialoftheCNTcompositecoatingismorepositivethanthatofthepurenickelcoating，andthecorrosionresistanceoftheCNTcompositecoatingisbetterthanthatofthenickelcoating，indicatingthecorrosionresistanceoftheCNTcompositecoati