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174Vol17,No4199712TRIBOLOGYDec,1997(380384)3(730000):;;;;().,,,.V1,,30,[1].,,.,,.,.11.1X.,()(),.1.21.2.130(10),,.,[2,3],,,.2,.3ö1996204214,1997206218ö.19972178.,199711.1.2.2,.,,().1.31.3.111m,,,,.,,,.1.3.2,(10).1.41.4.1.,(),.,.1.4.2(5m),,,.,,.22.11[1].,:(PVD)MoS2Pb(),90%[1,4],2.,MoS2,[(PTFE)]100,(80%).,;TiCTiNMoS2,,;;Ag2MoS2().1834:Fig1Theschemeofmaintechnicalpathwaystosolvingspacetribologyproblems12V,,Fig2Testdataoftorqueandlifetimeforballbearingsinsolidfilmlubricants2,,,.2.2,:[5];;,[5,6];[1]..,,.[6].,PVDMoS2[7],.,,,[1,4].,28317.2.3:(n40krömin)(p2kN)(-183)(-183253),2,1107r,;800,,;,,,;2,;,,;2,,;;,,.3,,,,,.,,;,2;,,,.,,.,60,.,,,.,MoS2PTFEMoS2.,.,,,.1Wyn2RobertsD.Newfrontiersforspacetribology.TribolInter,1990,23:1491552WeiR,WilburPJ,BuchholBWetal.Insitutribologicalevaluationofgreasesandsolidlubricantsinasimulated3834:atomicoxygenenvironment.TribolTrans,1995,38:9509583KleimanJI,IskanderovaZA,PerezFJetal.ProtectivecoatingsforLEOenvironmentsinspacecraftapplica2tions.SurfCoatTechnol,1995,76277:8278344,,..,1996,16(1):89965ChaseTJ.Wearmodesactiveinangularcontactballbearingsoperatinginliquidoxygenenvironmentofthespaceshuttleturbopump.LubrEng,1993,49:3133226,..,1996,16(3):2822887YuDY,WangJA,OuyangJL.VariationsofpropertiesoftheMoS22LaF3cosputteredandMoS22sputteredfilmsafterstorageinmoistair.ThinSolidFilms,1997,293:15FrontiersforSpaceTribologyInvestigationYuDeyangXueQunji(LaboratoryofSolidLubricationLanzhouInstituteofChemicalPhysicstheChineseAcademyofSciencesLanzhou730000China)AbstractTheimportanceofspacetribologyhasbeenrecognizedandsupportedbymanynationalspacedepartments.Asamatteroffactthisdisciplinehasreachedahighde2greeofmaturity.Nevertheless,anewgenerationspaceprogrambringsaboutnewchal2lengestothedirectionofspacetribologydevelopment.Newlong2termspaceprogramtobeperformedincludesscience,spacestationandtransportation(expecially,longlifeprob2lemofballbearingathighspeedandheavyloadinliquidoxygenorhydrogenrocket2tur2bopump,anddynamicöstaticsealproblemoftheturbopumpsystem),earthobservation(especially,secondgenerationmeteorologysatellite),payloadandspacecraftdevelopmentandexperimentationprogram.Thefrontiersofspacetribologyinvestigationandsometechnicalpathwaystocarryoutthefrontinvestigationsaresuggested.Thefrontiersin2cludegreatlyextendinglifetimeoftribologicalsystems,increasingreliability,loweringfrictiontorqueandtorquenoise,lubricatingunderintermittentoperatingconditions,andtribologyunderhighspeed,extremetemperatureandheavyloadconditions.Keywordsspaceprogramspacetribologyspacemechanismslubricationvacuumcold2weldingClassifyingnumberV148317