X-ray texture analysis in materials and earth sciences
X-ray texture analysis in materials and earth sciences (in X-ray crystallography; progress in methods and applications; a symposium, Armin Kirfel (prefacer) and Martin Okrusch (prefacer))
European Journal of Mineralogy (August 1997) 9 (4): 735-761
The texture of a polycrystalline material is quantitatively defined by the orientation distribution function of the crystallites; higher-order textural quantities such as the mis-orientation distribution function which describes the pair distribution of neighbouring crystals, texture fields, and multi-phase textures may also be considered, thus approaching a comprehensive description of the statistical crystallography of polycrystalline aggregates. Textural data, measured mainly by XRD, but also using neutron and electron diffraction, includes pole density distribution factors from which the orientation distribution function can be calculated. Examples are given for pole figures of both the plagioclase and hornblende components of an amphibolite and for natural strains obtained both from the preferred orientation of phyllosilicates and the shape of reduction spots in slates from 14 localities in N Wales.