TEXTURE CHARACTERIZATION IN X-RAY AND NEUTRON POWDER DIFFRACTION DATA USING THE GENERALIZED SPHERICAL-HARMONIC

摘要

Crystallographic texture or preferred orientation can cause serious systematic errors in quantitative phase analysis of crystalline materials using powder diffraction data. In the present study, parallel modeling with x-ray diffraction data was carried out in order to compare the near-surface characterizations texture information with the bulk obtained with neutron diffraction. This paper will describe the general applicability of the March and the generalized spherical-harmonic models with particular reference to x-ray and neutron diffraction data of highly-oriented molybdite and calcite specimens.