Interface dislocation patterns studied with high-resolution TEM.pdf

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1、RIJKSUNIVERSITEITGRONINGENINTERFACEDISLOCATIONPATTERNSSTUDIEDWITHHIGH-RESOLUTIONTEMProefschriftterverkrijgingvanhetdoctoraatindeWiskundeenNatuurwetenschappenaandeRijksuniversiteitGroningenopgezagvandeRectorMagnificus,dr.D.F.J.Bosscher,inhetopenbaarteverdedi

2、genopvrijdag17september1999om14:15uurdoorHilbrandBastiaanGroengeborenop16januari1971teGroningenPromotor:Prof.dr.J.Th.M.DeHossonCover:Zincoxideprecipitatesinsilver,PhilipsXL30-SFEGscanningelectronmicroscopeISBN9036711274Theworkdescribedinthisthesisispartofth

3、eresearchprogramoftheFoundationofFundamentalResearchonMatter(FOM-Utrecht).IthasbeenmadepossiblebyfinancialsupportfromtheNetherlandsOrganisationforResearch(NWO-TheHague).CONTENTS1INTRODUCTION12EXPERIMENTALPROCEDURES72.1Introduction72.2TransmissionElectronMic

4、roscopy82.2.1Illuminationsystem82.2.2Interactionwiththespecimen112.2.3Imageformation132.2.4Imagerecording182.2.5Imagingmetal-oxideinterfaces182.3IterativeDigitalImageMatching(IDIM)202.3.1Introduction202.3.2Imagepreprocessing212.4Creationofthespecimens232.4.

5、1Creatingmetal-oxideinterfaces232.4.2Internaloxidation242.4.3SpecimenpreparationforHRTEM252.4.4SampleanalysiswithAtomicForceMicroscopy253CUBE-ON-CUBEINTERFACES293.1Introduction293.2Experimental303.3ExperimentalHRTEMimages313.4Misfit-dislocationnetworks353.5

6、Atomisticcalculationsandimagesimulations373.6Misfitdislocationnetworks;acomparisonbetween39experimentandcalculations3.6.1Cu/MgO{111}//{111}alongá110ñ403.6.2Cu/MgO{111}//{111}alongá112ñ413.6.3Cu/MnO{111}//{111}alongá110ñ453.6.4Cu/MnO{111}//{111}alongá112ñ483

7、.7Conclusions48CONTENTS4CUBE-NON-CUBEINTERFACES514.1Introduction514.2Experimentalprocedures524.3Ag/Mn3O4precipitateformation524.4Mn3O4orientationinAg564.5Onedimensionalmisfitdislocationstructure594.6Stand-offdislocations664.7Tilted{111}interfaces714.8Discus

8、sion764.9Conclusions775PHASETRANSFORMATIONS795.1Introduction795.2ZnOinPd805.2.1Experimentalprocedures805.2.2Observations815.2.3Discussion845.2.4Conclusions855.3ZnOnucleationinAg855.4InfluenceofSbinAg/M