Phase Analysis of Clays Using an Expert System and Calculation Programs for X-Ray Diffraction by Two- and Three-Component Mixed-Layer Minerals

摘要: X-ray phase analysis of clays is difficult because these materials generally consist a mixture different phases, i.e ., mixed-layer minerals, individual clay minerals (non mixed-layer), and associated such as calcite quartz. The requires knowledge that presently incorporated in computer-based expert system. This system capable a) identification minerals; b) c) the nature d) approximate structural characterization e) precise determination by comparison experimental diffraction (XRD) patterns with calculated for models. Accuracy conclusions drawn has been verified literature data. Programs must allow modification characteristics, abundances, order-disorder distribution layers; sizes coherent scattering domains; consideration more than two components. Two programs were written to calculate XRD two- three-component consisting any layer type without limitation relationships.