學(xué)術(shù)討論固索

國外固體潤滑文獻(xiàn)索引(5)

Introduction

Solidlubricantsareusedinvariousapplications,suchasaerospace,automotive,andmanufacturingindustries,duetotheirabilitytoreducefrictionandwear.However,thepropertiesandperformanceofsolidlubricantsvarydependingontheirchemicalcomposition,particlesize,andmorphology.Inthisarticle,wepresentaliteraturereviewofrecentresearchonsolidlubricants,focusingonfiveselectedpublications.

LiteratureReview

1."Tribologicalpropertiesoftungstendisulfide(WS2)nanoparticlesasasolidlubricantinwaterandoilmedium"byB.Salehiandcolleagues(2019).

ThisstudyinvestigatesthetribologicalpropertiesofWS2nanoparticlesasasolidlubricantinwaterandoilmediums.TheresultsshowedthattheWS2nanoparticlesperformedbetterinoilmediumthaninwater,demonstratingexcellentfrictionandwearreductionproperties.Theresearchersattributedthebetterperformanceinoilmediumtothehigherload-carryingcapacityofoilcomparedtowater.

2."Recentadvancesintheinvestigationofthetribologicalpropertiesofgraphene-basedsolidlubricants"byY.Yaoandcolleagues(2018).

Graphenehasgainedattentionasasolidlubricantduetoitsexceptionalmechanicalandtribologicalproperties.Thisreviewarticlesummarizesrecentresearchongraphene-basedsolidlubricants,includingtheirpreparationmethods,structuralproperties,andtribologicalbehavior.Theauthorsconcludethatgraphene-basedsolidlubricantsshowpromiseforenhancingthetribologicalpropertiesofmaterials.

3."Frictionandwearbehaviorofnanodiamond-polytetrafluoroethylenecompositecoatings"byY.Liandcolleagues(2020).

Thisstudyevaluatedthefrictionandwearbehaviorofnanodiamond-polytetrafluoroethylene(ND-PTFE)compositecoatings.TheresultsshowedthattheND-PTFEcoatingsexhibitedexcellentfrictionandwearresistanceproperties,especiallyunderhighloadsandelevatedtemperatures.TheresearcherssuggestedthatthesuperiorperformanceoftheND-PTFEcoatingwasduetotheuniquepropertiesofnanodiamondsandPTFE.

4."Tribologicalperformanceofmolybdenumdisulfide/grapheneoxidehybridcoatingsonmagnesiumalloy"byF.Zhangandcolleagues(2020).

Thisstudyinvestigatedthetribologicalperformanceofmolybdenumdisulfide/grapheneoxide(MoS2/GO)hybridcoatingsonmagnesiumalloy.TheresultsshowedthattheMoS2/GOcoatingsexhibitedexcellentfrictionandwearreductionproperties,especiallyunderhighloadconditions.TheresearchersattributedthesuperiorperformanceofthecoatingstothesynergisticeffectofMoS2andGO,whichenhancedtheload-carryingcapacityandreducedfriction.

5."Polyimide-SiO2hybridcompositecoatingsforhigh-temperaturesolidlubrication"byP.Yangandcolleagues(2019).

Thisstudydevelopedpolyimide-SiO2hybridcompositecoatingsassolidlubricantsforhigh-temperatureapplications.Theresultsshowedthatthepolyimide-SiO2coatingsexhibitedexcellentfrictionandwearreductionpropertiesathightemperatures,attributedtotheformationofastabletransferfilmduringsliding.Theresearcherssuggestedthatthehybridcompositecoatingscouldbeaneffectivesolutionforhigh-temperaturesolidlubrication.

Conclusion

Inconclusion,theselectedpublicationsdemonstratethediverseapplicationsofsolidlubricantsandtheimportanceofunderstandingtheirpropertiesandperformance.Graphene,WS2,andhybridcompositecoatingsarepromisingmaterialsforimprovingthetribologicalbehaviorofmaterialsundervariousconditions.Thetribologicalpropertiesofsolidlubricantsareinfluencedbytheirchemicalcomposition,particlesize,andmorphology,emphasizingtheneedforfurtheroptimizationandcharacterization.Solidlubricantsplayacrucialroleinreducingfrictionandwearinmanymechanicalsystems,rangingfromautomotiveenginestoairplaneturbines.Thepropertiesandperformanceofsolidlubricantsareinfluencedbyvariousfactors,suchaschemicalcomposition,particlesize,andmorphology.Hence,afundamentalunderstandingofthetribologicalpropertiesofsolidlubricantsiscrucialtooptimizetheirperformanceforspecificapplications.

Recentstudieshaveevaluatedthetribologicalpropertiesofvarioussolidlubricants,includingmolybdenumdisulfide,graphene,andhybridcompositecoatings.Forinstance,inthestudybyB.Salehietal.,tungstendisulfidenanoparticleswereusedasasolidlubricantinoilandwatermediums,demonstratingexcellentfrictionandwearreductionproperties.Similarly,nanodiamond-polytetrafluoroethylene(ND-PTFE)compositecoatingsexhibitedsuperiorfrictionandwearresistanceproperties,especiallyunderhighloadsandelevatedtemperatures.

Moreover,hybridcompositecoatings,suchasMoS2/GOandpolyimide-SiO2,haveshownpromisingresultsinimprovingthetribologicalperformanceofmaterials.TheMoS2/GOcoatingsdemonstratedexcellentfrictionandwearreductionproperties,attributedtothesynergisticeffectofMoS2andGO.Ontheotherhand,polyimide-SiO2compositecoatingsexhibitedstabletransferfilmformationathightemperatures,makingthemapotentialsolutionforhigh-temperaturesolidlubrication.

Inconclusion,therecentliteraturehighlightstheimportanceofunderstandingthepropertiesandbehaviorofsolidlubricantsfortribologicalapplications.Furtheroptimizationandcharacterizationofsolidlubricantscanleadtothedevelopmentofenhancedmaterialsthatcanwithstandvariousenvironmentalconditionswhilereducingfrictionandwearinmechanicalsystems.Additionally,surfacemodificationtechniques,suchaslasersurfacetexturingandplasmatreatment,havebeeninvestigatedtoimprovethetribologicalpropertiesofsolidlubricants.Lasersurfacetexturingcancreatemicroscaleandnanoscalefeaturesonthesurfaceofmaterials,whichcanenhancelubricationbyretainingthelubricantwithinthetexturesandreducingcontactareabetweensurfaces.Plasmatreatmentcanmodifythesurfacechemistryofmaterials,whichcanimprovetheadhesionandspreadingofsolidlubricants.

Inadditiontoconventionalsolidlubricants,thedevelopmentofadvancedmaterials,suchasself-lubricatingmaterialsandnanocomposites,hasalsogainedattention.Self-lubricatingmaterialscontainlubricantcompoundswithinthematerialmatrix,whichcancontinuouslyreleaselubricantduringoperation.Nanocompositescanincorporatenanoscalesolidlubricantsintothematrixtoachievesynergisticeffectsandimprovetribologicalperformance.

Moreover,theuseofenvironmentallyfriendlysolidlubricants,suchasnaturaloilsandbiodegradablepolymers,hasalsobeenexplored.Thesematerialscanreducetheenvironmentalimpactoflubricants,whilealsoprovidinggoodtribologicalproperties.

Inconclusion,thedevelopmentofeffectiveandsustainablesolidlubricantsisimportantfortheimprovementofvariousmechanicalsystems.Theoptimizationofsolidlubricantsthroughsurfacemodificationtechniquesandthedevelopmentofadvancedmaterialscanleadtoenhancedtribologicalperformanceandreducedenvironmentalimpact.Anotherareaofresearchinsolidlubricantsisthedevelopmentofcoatings.Coatingscanbeappliedtothesurfaceofmaterialstoprovidebothlubricationandprotectionagainstwearandcorrosion.Thesecoatingscanbemadefromvariousmaterials,includingpolymers,metals,andceramics.Forexample,diamond-likecarbon(DLC)coatingshavebeenfoundtohaveexcellenttribologicalproperties,suchaslowfriction,highwearresistance,andgoodadhesiontodifferentsubstrates.

Furthermore,theuseofadditivesinsolidlubricantshasalsobeenexploredtoimprovetheirproperties.Additivescanimprovethedispersibilityandadhesionofsolidlubricants,enhancetheiranti-wearandanti-frictionproperties,andreducetheirsensitivitytochangesintemperatureandpressure.Somecommonadditivesusedinsolidlubricantsincludenanoparticles,surfactants,andpolymers.

Theapplicationofsolidlubricantsindifferentindustries,suchasaerospace,automotive,andmanufacturing,isalsobeinginvestigated.Forexample,theuseofsolidlubricantsinhigh-temperatureenvironments,suchasingastu