Is there any guideline/consideration of the minimum Crystallinity Index value (from XRD) for a synthesized crystalline iron oxide? Thank you
Biplab Kumar Mahata Since it varies on a number of variables, there is no standard minimum Crystallinity Index (CI) value for the crystalline iron oxide that is produced.
Iron oxide phase (crystallinities of various iron oxide phases, such as magnetite, goethite, and hematite, vary naturally. Compared to goethite, hematite often has more crystals), Synthesis technique (coprecipitation, hydrothermal processes often yield more crystalline materials) and
Conditions for crystallization (temperature, pressure, and the time of the synthesis process influence the end product's crystallinity).
The Rietveld refinement approach fits the whole XRD pattern and estimates the crystalline fraction using a crystal structure model.I hope this article helps you "Creation of crystal structure reproducing X-ray diffraction pattern without using database".
No, there isn't any minimum value of crystallinity index, it depends on too many parameters
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