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Inter-mixing

By Ricky Jenkins,2014-02-18 10:44
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Inter-mixing

    Inter-mixing

    62IMP&HIRFLAnnualReport2006

    33Inter--mixingofNi/c-SiO2afterHigh

    EnergyIonIrradiations

    IiuChunbao,WangZhiguang,PengXinping,SongYin,ZangHang WeiKongfang,YaoCunfengandM.Toulemonde

    0.5mmthick(100)crystallineSiO2(c

    SiO2)slabswerecoveredwithabout300nmthickNifilms, whichwerepreparedbymagnetronsputteringfrom99.99Nispecimensatapressureof1.0×

    10Pa.

    SeveraloftheNi/c

    SiO,sampleswereirradiatedatRTwith853MeVPbor308MeVXeions.ThePb-i-

    onsirradiationwascarriedoutattheIRASME(CIRIL

    GANIL,Caen)andtheirradiationfluenceiS5.0×

    10"Pb/cm.TheXeionsirradiationwascarriedoutattheHIRFI

    SFC(IMP,Lanzhou)andtheirradia-

    tionfluenceswere1.0×10",5.0×10and1.0×

    10.Xe/cm..Al1thesampleswereanalyzedbyusing RutherfordBackscatteringSpectrometry(RBS)andtheprobewas2.022MeVHe-ions.The

    RBSmeas-

    urementswereperformedatroomtemperatureutilizingtheTandemAcceleratoratBeijingU

    niversity.

    Channelnumbers

    Fig.1RBSspectraofNi/cSiO2samplesbeforeandafter308MeVXe. RBSspectraofNi/c

    SiO2samplesbeforeandafterirradiationwithdifferentfluencesof308MeVXe

    ionsareshowninFig.1.TheRBSspectrumshowsachangeinslopeattheinterfacewithrespect

toavir

    ginsampleimplyingmixing.ThereductioninthepeakheightofNiisduetosputteringcausedbytheion

    irradiation.Clearly,alargerchangeinslopewithrespecttoasdepositedsampleimplyingmoremixingfor

    sampleswasirradiatedathigherirradiationfluences(insetofFig.1). channelnumbers

    Fig.2RBSspectraofNi/'cSiO!samplesbeforeandafter853MeVPb

    Fig.2showstheRBSspectraofNi/c

    SiO2samplesbeforeandafterirradiationwithdifferentfluences of853MeVPb

    ions.AchangewasclearlyseeninslopeatinterfacewithrespecttoasdepositedNi/cSiO2

    sampleimplyingmixingforsamplesirradiatedbyPbions.

    1SupportedbyNationalNaturalScienceFoundationofChinaandtheChineseAcademyofSciences

    2CIRIL.BP5l33,14070CaenCedex05,France.

    勺一0一一_10u呐面?勺一0一一_I0?0?

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