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Study of nanocrystalline structure and micro properties of zro2 powders by using rietveld method

Author:

Nabeel A. Bakr, Tagreed. M. Al-Saadi and Noor A. Hameed

Subject Area:

Physical Sciences and Engineering

Abstract:

In this study, we report the qualitative phase analysis performed by Rietveld X-ray diffraction using “Fullprof” program for nano and micro powder of ZrO2 before and after heat treatment at (1180 °C). Rietveld refinement on X-ray data for the samples is performed. The obtained results have a good optimization between the observed X-ray diffraction pattern and that calculated by Rietveld method. This optimization is determined according to R-pattern factor (Rp), the weighted-profile factor (Rwp), and goodness of the fit (GOF). The particles morphology of the powder before and after heat treatment is identified using SEM. The final result shows that Rietveld refinement is more accurate than comparing method.

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