Introduction to Basic Crystallography - Zones in the EBSP - PowerPoint PPT Presentation

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Introduction to Basic Crystallography - Zones in the EBSP

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Introduction to Basic Crystallography - Zones in the EBSP In an Electron Backscatter Diffraction Pattern (EBSP), the intersection of Kikuchi bands correspond to ... – PowerPoint PPT presentation

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Title: Introduction to Basic Crystallography - Zones in the EBSP


1
Introduction to Basic Crystallography - Zones in
the EBSP
  • In an Electron Backscatter Diffraction Pattern
    (EBSP), the intersection of Kikuchi bands
    correspond to 'Zones Axes' in the crystal

These can be 'indexed' and displayed
2
Introduction to Basic Crystallography - Indexing
  • Indexing an (EBSP) refers to the recognition and
    labelling of bands and zones in the pattern,
    which relate to specific planes and directions in
    the crystal.

3
Introduction to Basic Crystallography - Euler
Angles
  • Euler Angles are the three rotations about the
    main crystal axes
  • Euler angles are one possible means of describing
    a crystal orientation

4
Introduction to Basic Crystallography - Euler
Space
  • Euler Space was popularized for macro-texture
    investigations as the 'Orientation Distribution
    Function' (ODF).
  • ODFs are an established method for interpreting
    the results from x-ray diffraction

5
Introduction to Basic Crystallography - The
Orientation Matrix
  • The orientation matrix describes the absolute
    orientation of the crystal with respect to the
    sample axes.

6
Introduction to Basic Crystallography - Ideal
Orientation Nomenclature
  • In this example the orientation of the crystal
    shown can be written as 100lt110gt

7
Introduction to Basic Crystallography -
Misorientation
  • Misorientation is the expression of the
    orientation of one crystal with respect to
    another crystal.
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