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Figure 3
(a) Stereographic projection showing NW and KS crystallographic orientation (equivalent variants) for fcc (111) and bcc (110). (b) Illustration of the Cu {111} pole figure experiment in the presence of twinning. (c) Illustration of the Mo {110} pole figure experiment in the presence of twinning. The solid outer circle in panel (b) is at a tilt angle ψ = 70.53° and that in panel (c) at 60°; the solid black arrowed lines in panels (b) and (c) denoting Cu Mathematical equation and Mo Mathematical equation, respectively, exhibit sixfold rotational symmetry when they overlap perfectly with the dashed lines. Here, β denotes a symmetrical angle (see Section 3.3[link] for a detailed description); in this context, it takes the values 60°, 120°, 180°, −60° and −120°. For example, panel (b) shows β = −60° and panel (c) shows β = 180°.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 59| Part 3| June 2026| Pages 910-922
https://doi.org/10.1107/S1600576726003638
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