STATISTICAL-ANALYSIS OF A MIXED-LAYER X-RAY-DIFFRACTION PEAK

A mathematical model to describe the line shape of an x-Pay diffractio n peak from stacks of different layers such as, for instance, an inter stratified clay mineral has been evolved, The aim was to be able to an alyse the proportions of different specific stacking sequences in two- component interstratified samples. a maximum-entropy algorithm was app lied to observed powder-diffraction intensities in order to obtain the probability of each stacking sequence. Application to natural smectit e-illite clays gave reasonable results.