Electron microscopy
  
6mm Symmetry
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Figure 1599 shows the whole-pattern symmetry and projection-diffraction symmetry of the [0001] CBED patterns of T1 (Al2CuLi) crystals. The symmetries of both patterns are 6mm.

[0001] CBED patterns of T1 (Al2CuLi) crystals: whole-pattern symmetry (HOLZ)
[0001] CBED patterns of T1 (Al2CuLi) crystals: Projection-Diffraction Symmetry
(a)
(b)
Figure 1599. [0001] CBED patterns of T1 (Al2CuLi) crystals: (a) whole-pattern symmetry (HOLZ) and (b) projection-diffraction symmetry in ZOLZ. Adapted from [1]

 

 

 

 

[1] Kenneth S. Vecchio and David B. WILLIAMS, Convergent Beam Electron Diffraction Analysis of the T1 (Al2CuLi) Phase in Al-Li-Cu Alloys, Metallurgical Transactions A, 19A, 1988-2885, (1988).

 

 
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