FWHM In PXRD is used to determine disorder as well as stain in polycrystalline solid. How can these effects be separated?

11 November 2013 1 2K Report

Broadness in XRD peaks were observed with aliovalent metal ion doping in ceramic perovskite solid.

Dear Kapil

In your question I believe disorder means compostitional inhomogeneity. In most of the ceramics the strain effects are appearently smaller than compositional inhomogeneity. Moreover strain can be relaxed after annealing the ceramic samples to 400-500C. So do PXRD before and after annealing the sample, You can get some idea about strain. The strain effects are more dominating in alloys.

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