Lect17_notes

10 referencing of indexed ebsd patterns cbems

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Unformatted text preview: cence (CL) Electron Beam Induced Current (EBIC) CBEMS 164 – XRD, SEM & Microanalysis: Lecture 17 ! 10 Referencing of Indexed EBSD Patterns! ! ! ! ! ! ! CBEMS 164 – XRD, SEM & Microanalysis: Lecture 17 ! 11 CBEMS 164 – XRD, SEM & Microanalysis: Lecture 17 ! 12 Formation of an EBSD Kikuchi Pattern! ! ! ! ! ! ! Formation of an EBSD Kikuchi Pattern! ! ! ! ! ! ! CBEMS 164 – XRD, SEM & Microanalysis: Lecture 17 ! 13 CBEMS 164 – XRD, SEM & Microanalysis: Lecture 17 ! 14 A Typical Pattern (Cu)! ! ! •  Pairs of kikuchi lines for each set of diffracting planes ! ! ! •  Lines intersect at zone axes ! •  Zone axes can be indexed •  All symmetry components of crystal are embodied in the pattern •  Automated indexing enables the potential of EBSD to be realized Appearance of Bands! •  Pattern of PbMoO4 CBEMS 164 – XRD, SEM & Microanalysis: Lecture 17 ! 15 Parameter Dependence – Effect of kV! ! ! ! ! ! ! 10 kV 30 kV Note narrower bands as kV increases, 2B decreases CBEMS...
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