Abstract
The crystallographic orientation distribution and the geometrical lamellae orientation
distribution in lamellar eutectics are, in general, not independent of each other. The
combined orientation-lamellae distribution function depends on five angular parameters.
X-ray diffraction in such eutectics may exhibit an anisotropic macroscopic
absorption factor if the penetration depth of the X-rays is large compared with their
planar size. As a consequence, the reflected X-ray intensity may depend on a third
angle