水润滑条件下氧化锆颗粒及碳纤维共混增强聚醚醚酮复合材料的摩擦性能研究

《水润滑条件下氧化锆颗粒及碳纤维共混增强聚醚醚酮复合材料的摩擦性能研究》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、246Vol.24No.6


2010
12CHINESEJOURNALOFMATERIALSRESEARCHDecember2010

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, &,,, ,,!'"TB332()#"1005-3093(2010)06-0625-06StudyontheTribologicalPropertiesofPolyetheretherketoneCompositesReinforcedbyZrO2ParticlesandShortCarbon

3、FibersunderWaterLubricationZHONGYingjieXIEGuangyouSUNZhaosongSUIGuoxin∗(InstituteofMetalResearch,ChineseAcademyofSciences,Shenyang110016)ManuscriptreceivedMay18,2010;inrevisedformJune24,2010.*Towhomcorrespondenceshouldbeaddressed,Tel:(024)83978040,E–mail:gxsui@imr.ac.cnABSTRACTPEEKmatr

4、ixcompositesfilledwithshortcarbonfibers(CF)andZrO2particleswerecompoundedusingatwin-screwextruderfollowedbyinjectionmolding.ThetribologicalpropertiesofthePEEK/CF/ZrO2compositesunderthewaterlubricationweresystematicallystudied.Itwasrevealedthatthehybridcompositesexhibitexcellentwear-resis

5、tanceinthewaterconditions.Thefrictioncoefficientsofthecompositesslightlychangedwithincreasingoftheappliedload,whilethewearratesofthehybridcompositesdecreasedwithincreasingappliedload.Mainwearmechanismofthecompositesinwaterwasmildabrasivewearandfatiguewear.Thehighwearresistanceofthecompos

6、itesshouldbeattributedtotheexistenceofthecarbonfibers:thecarbonfiberscarriedthemainloadbetweenthecontactsurfacesandprotectedthesoftpolymermatrixfromfurthersevereimpactandabrasionofthecounterpart.TheincorporationoftheZrO2particlescouldeffectivelyinhibitthecarbonfiberfailureanddebonding,whic

7、hresultedinabetterwearresistancepropertyofthehybridPEEKcompositescomparedwithsoleCFreinforcedPEEKcomposites.However,highloadingoftheparticleswouldalsoaggravatethefatiguewearofthecompositesandleadtoadeteriorationofthewearresistanceofthecomposites.KEYWORDScomposite,polyetheretherketone