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264Vol.26No.4200411JournalofNuclearandRadiochemistryNov.2004:2004202209;:2004206208:(1977),,,,:025329950(2004)0420220205,,,,,,621900:(AES),603K,,UNbAr+,,:;;;(AES):O657.62:AO2,CO,CO2,H2O(),[1,2]O2,O2UO2;NbO,Nb2O5,(298673K),AES,,Ar+,[3],,,AES,1111(10mm2mm),;O2,99.999%PHI2650SAM,,6.510-8Pa,LaB6(CMA),100eV10keV1124.0kVAr+,AESCO;O2,,UO2Nb2O5,,,3keV,AES,673K2211,Ar+(1.310-4Pa),,Profile,,U,NbCAES11,,,,,UO21Nb,U22,(298K),NbU,Nb,,NbU1Fig.1AtompercentageofeachelementinprocessofheatedoxidationfilmofU2Nballoy2NbUFig.2Nb/UratioofU2Nballoyatdifferentheatedtime1(Experimentalvalue),2(Theoreticalvalue)AES353,,C(KLL)AES;673K,C(KLL)AES,,Nb2O5NbMNN162eV167eV4,,Nb(MNN)162eV,,NbNb2O5;,Nb(MNN),Nb2O5Nb,673K,MNN167eV,Nb3U(NOV)C(KLL)AESFig.3AESofU(NOV)andC(KLL)ofU2Nballoyatdifferenttemperature4NbAESFig.4AESofNbofU2Nballoyatdifferenttemperature5UAES,,OPV,O5VVO4VV73.5,85.595eV,UO2;603K,O5VVO4VV,613K,,UO2;673K,OPV,O5VVO4VV73.5,90.496.7eV,,[4],,,,CU1224:5UAESFig.5AESofUofU2Nballoyoxidationfilmatdifferenttemperature,673K,NbU212673K673K,30min,Ar+,NbUC(U)NbUAES6106Fig.6AtompercentageofeachelementinprocessofU2NballoyoxidationfilmsputteringbyAr+7NbUFig.7Nb/UratioofU2Nballoyoxidationfilm1(Experimentalvalue),2(Theoreticalvalue)8U(NOV)C(KLL)AESFig.8AESofU(NOV)andC(KLL)ofU2Nballoyoxidationfilmatdifferentdepth6,C,,,,U(NOV)C(KLL),20min,,C(KLL)(8),O5VVO4VV84.5eV94.6eV(10),,UO2,UO29Nb(MNN)167eV,20min,222269NbAESFig.9AESofNbofU2Nballoyoxidationfilmatdifferentdepth10UAESFig.10AESofUofU2Nballoyoxidationfilmatdifferentdepth,7,,Nb/U,,(0.9min),Nb/U,C(KLL)(8),Nb(MNN)167eV(9),Nb;,Nb/U,10min,,;,,Nb/U[5]:,,,;,6.510-8Pa,,,,,3(1)(3.910-6Pa),603K,UO2Nb2O5,UO2,Nb2O5Nb(2)673K,,U,UO2;Nb:!:[1]WilliamLM,JaneAL,RobertJHJ,etal.AnExami2nationoftheInitialOxidationofaUranium2baseAlloy(U214.1at.%Nb)byO2andD2OUsingSurface2sensitiveTechnique[J].ApplSurfSci,1999,150:7388.[2],,,.O2XPS[J].,2001,24(10):848852.[3]DillardJG,MoersH,Klewe2NebeniusH,etal.TheAdsorptionofMethylIodideonUraniumandUraniumDioxide:SurfaceCharacterizationUsingX2rayPhotoelec2tronSpectroscopy(XPS)andAugerElectronSpectroscopy(AES)[J].SurfSci,1984,145:6186.[4],,.:[M].:,1996.[5],,,.:[M].:,1999.3224:StudyoftheHeatedOxidationFilmofU2NbAlloybyAESLULei,BAIBin,ZOUJue2sheng,YANGJiang2rong,XIAOHong,JIANGChun2liChinaAcademyofEngineerPhysics,P.O.Box919(71),Mianyang621900,ChinaAbstract:TheheatedoxidationfilmofU2Nballoyisstudiedbyaugerelectronspectroscopy(AES)atdifferenttem2peratureinthehighvacuumchamber.Whentemperatureisabove603K,thesurfacestructureofU2Nballoywillchangegreatly,andthesurfaceismadeupofUCxOyphase,metallicUandNb.TheheatedoxidationfilmofU2NballoyissputteredwithAr+,andchemicalcompositionsoftheoxidationfilmofU2Nballoyarestudied.ItshowsthatoxygencontentislowonthesurfaceoftheheatedoxidationfilmU2NballoyandhighinsidetheheatedoxidationfilmofU2Nballoy.Keywords:U2Nballoy;filmofoxidation;hightemperature;augerelectronspectroscopy(AES):2004.02.25:G21F9/06:1477649:03146394.0:2003.07.11::,3232,,/42226