学科分类
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2 个结果
  • 简介:Wheninterfaciallayersareviewedasaseparatephase,theinterfacethicknessplaysanessentialroleinassessingphysico-mechanicalpropertiesofparticulatematerials.However,theinterfacethicknessfromsectionalanalysisisoftenoverestimated,duetotheirregularityofsurfacetexturesofgrainsinopaquematerialsthatgivesrisetothenormalofacross-sectionalplanenon-perpendiculartothesurfaceofgrains.Hence,thedeterminationoftheoverestimationdegreeisverycriticaltopreciselyobtaintheinterfacethickness.Thisarticledevelopsanumericalmodelfortheoverestimationdegreeoftheinterfacethicknessaroundanellipsoidalgrainwithanarbitraryaspectratio,byapplyinganaccuratesectionalanalysisalgorithm,andquantitativestereologyandgeometricalprobabilitytheories.Furthermore,onthebasisofthedevelopednumericalmodel,theinfluenceofellipsoidalparticleshapeontheoverestimationdegreeisquantitativelycharacterized.

  • 标签: 界面厚度 数值评价 球形颗粒 接口 物理机械性能 数值计算模型
  • 简介:WepresentthetemperaturedependentelectricaltransportmeasurementsofAg/Si(111)-(√3×√3)R30°bytheinsitumicro-four-pointprobemethodintegratedwithscanningtunnelingmicroscopy.Thesurfacestructurecharacterizationsshowhexagonalpatternsatroomtemperature,whichsupportstheinequivalenttriangle(IET)model.Ametal-insulatortransitionoccursat-115K.Thelowtemperaturetransportmeasurementsclearlyrevealthestronglocalizationcharacteristicsoftheinsulatingphase.

  • 标签: surface CONDUCTIVITY METAL-INSULATOR transition LOCALIZATION SCANNING