How to interpret the XRD results to find the Chemical composition of the sample under study?

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Luma M. Ahmed

in general, when formed a composite, the 2 theta shifts towards a high value (red shift).

Anas N S

Dear Sridhar Sripadmanabhan Indira

Compare the peak positions with standard ICDD/JCPDS data. If all the peaks of a particular phase are matching, then that phase could be confirmed by keeping in mind the starting materials and possible phase formations.

Regards

Anas

Ali Reza Fattahi

You mentioned that you are about to find "chemical compounds". Therefore I wouldn't suggest XRD as an accurate method for this purpose. X-ray Photoelectron Spectroscopy (XPS), to the best of my knowledge is the only way to determine chemical compounds of a material. XRD is good case for studying simple mineral/inorganic crystals. As soon as you start working with complicated alloys or organic materials, it would be extremely difficult and inaccurate to work with XRD. However I would recommend you to start learning X-Pert which is the most famous app for analyzing xrd graphs.