Philosophical Magazine Letters · 1991 · 21 citations · 8 references
Natural SciencesMaterials EngineeringMaterials ScienceCrystal StructureMechanical Behavior Of MaterialsMetallurgyAlloysCrystallographyElectron DiffractionMicrostructure AnalysisStacking FaultsX-ray CrystallographyCrystallographic Fault AnalysisDiffraction ContrastDiffraction Contrast In Electron MicroscopyDiffraction Signatures Of Stacking FaultsElectron Microscopy Of Stacking FaultsInorganic CrystalsLattice PlanesTransmission Electron Diffraction
Abstract The electron diffraction contrast of stacking faults in a decagonal Al70Co15Ni15 alloy has been analysed. The direction of the displacement vectors R of the stacking faults have been determined to be parallel to the and zone axes, respectively, for the first time in quasicrystalline structures. The corresponding fault planes are parallel to (1 0 0 0 0 0) and (0 1 0 0 0 0) lattice planes, respectively. The characteristics of the diffraction contrast fringes of the stacking faults in the decagonal Al-Co-Ni alloy are similar to those in conventional crystals.
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