掺金玻璃在电场热处理中的形核过程

3(,100084)(20031219;200446),,x.,.,,;.,.:,,PACC:8120Q,8110J,0570L3(:50001005).11,,[11].,.,,[1,2][3][4]2[5,6].,[79]..,[10].,[1113]..,.,,.,[14].,,,,.212.11.SiO2,H3BO3,NaOH,KOH,Sb2O3HAuCl4.1400,6013%SiO2,23.9%B2O3,10.4%Na2O,4.0%K2O,1.0%Sb2O3,0.4%Au.10mm10mm2mm,.N2.550,5h,0,160300V(0,800,1500V/cm),ABC.2.2.x(XRD),xD/max2rB,CuK,40kV,160mA,,0.02,6Pmin.Leo5311200411100023290P2004P53(11)P3966205ACTAPHYSICASINICAVol.53,No.11,November,2004n2004Chin.Phys.Soc.©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(0%,011%,012%,013%,014%015%),550.311XRD.1,,,,a.,,b,,c.1XRD2(a)A(0V/cm),(b)B(800V/cm),(c)C(1500V/cm)2.2(a)5505h,,.2(b)800V/cm5505h,,20nm.2(c)1500V/cm5505h,2(b),,2080nm.3.AC,530nm.4.4,.,k=2.64.41.,:.769311:©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=G0+GE=43R3GV+4R2+GE,(1)G0,GE,GV,,R.,,,.,,.,C(r)=-r1r2(C0-C1)r(r2-r1)+C0r2-C1r1r2-r1C0-r1(C0-C1)r,(2)r1,r2,C1,C0.,,,,:V=1Ci-C0VM=1CVM=kVM,(3)VM,Ci.,,0,i,i0:r=i0=1+kC,(4)k,.,.5.5,,.,:1),;2),;3).,869353©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[15],GE=12-k3VM0E20.(5)(5),,k,,k.k1.5,GE0,;,k1.5,GE0,.,.(2)(4),.Ansys,.,,,.6,6,,.6k,7.7,;k,;k2.64.7k=10nm;=80nm;=105VPm;=45.64pF/m,6,k=2.64.(5),GE=12-21643VM0E20-0138VM0E20.(6)(6),,.7,k=2.64,10nm,-1.8110-19J.,,,.511.,,.2.,.,1.3..2.969311:©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1]RecardD,RoussignolPandPlytzanisC1985Opt.Lett.10511[2]SasaiJandHiraoK2001J.Non2Cryst.Solids29049[3]ZengHD,QuSL,JiangXW,QiuJR,ZhuCSandGanFX2003ActaPhys.Sin.522525(inChinese)[2003522525][4]BattaglinG,BoscoloBoscolettoA,MazzoldiP,MeneghiniCandArnoldGW1996Nucl.Instr.Meth.B116527[5]MatsuokaJ,MizutaniR,KanekoS,NasuH,KamiyaK,KadonoK,SakaguchiTandMiyaM1993J.Ceram.Soc.Japan10153[6]SelvanST,HayakawaT,NogamiM,KobayashiY,Liz2MarzanLM,HamanakaYandNakamuraA2002J.Phys.Chem.B10610157[7]ValentinE,BemasH,RicolleauCandCreuzetF2001Phys.Rev.Lett.8699[8]FuGS,YuW,LiSQ,HouHH,PengYCandHanL2003Chin.Phys.1275[9]WangYS,SunP,DingS,LuoXH,LiNandWangRZ2002ActaPhys.Sin.512892(inChinese)[2002512892][10]HopperRWandUhlmannDR1973Phys.Chem.Glasses1437[11]LiuW,LiangKM,ZhengYK,GuSRandChenH1997J.Phys.D:Appl.Phys.303366[12]LiuW,GuXM,LiangKM,ChenH,ZhengYKandGuSR1999Metall.Mater.Trans.B30685[13]LiuW,LiangKM,GuXM,ZhengYKandGuSR1999J.Mater.Sci.343455[14]WangZH,TianXG,WangSHandYaoX1998ActaPhys.Sin.472053(inChinese)[1998472053][15]BleaneyBIandBleaneyB1976ElectricityandMagnetism3rded(Oxford:OxfordUniversityPress)chaps1and2TheinvestigationonthenucleationmechanismofAu2containingglassinanelectricfield3WangGuo2LiangLiangKai2MingLiuWeiZhouFeng(DepartmentofMaterialsScienceandEngineering,TsinghuaUniversity,Beijing100084,China)(Received19December2003;revisedmanuscriptreceived6April2004)AbstractBymeansofx2raydiffraction,scanningelectronmicroscopyandabsorptionspectroscopy,wehavestudiedAu2containingglasswhichisheat2treatedunderanappliedelectricfield.Theexperimentalresultsareconsistentwiththeconclusionsobtainedfromanewthermodynamicmodel,whichisproposedbasedonthestaticelectromagnetictheoryandthermodynamictheoryinordertodescribethenucleationprocessofglassdopedwithmetals.Asakeyfactorinthemodel,theelectricenergychangeiscalculatedbytwomethodsinthisstudy.Oneisbasedonsomeapproximationtreatment,andtheotherthefiniteelementmethod.Theresultsobtainedbythetwomethodsaresimilarandcanexplaintheexperimentalresultsfairlywell.Keywords:Au2dopedglass,nucleation,electricfieldPACC:8120Q,8110J,0570L3ProjectsupportedbytheNationalNaturalScienceFoundationofChina(GrantNo.50001005).079353©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.