Please, Can any one inform me if XRD can detect the different types of the crystalline imperfections ? What are the used software programs? are there free programs can determine these defects?
If these imperfections are: Point defects (Vacancy defects , Interstitial defects, Stone–Wales defect, ...), Line defects (Dislocations), Planar defects (Grain boundaries, Stacking faults, twin boundary) and the three-dimensional macroscopic or bulk defects, such as pores, cracks, or inclusions.
Dear Ahmed Saeed Hassanien:
The defects that influence the lattice parameters such as interstitials and vacancies or the stacking order such as stacking faults can be detected by XRD. In the former case, you will see shift of reflections to the small angle (if the lattice constants increase) or to large angle (if the lattice constants decrease); in the later case, you will the broaden of the peaks on some crystal planes if there is high density of stacking faults.
Dear Ahmed Saeed Hassanien,
As far as I can see: XRD reveals lineshifts and linebroadening, nothing more and nothing less. Examples of the analysis of lattice-parameter variations, including the analysis of the obtained peaks can be found in my thesis (see attached link). That XRD would detect analytically the full range of crystalline defects as mentioned by your question seems to me an exaggerated expectation: most of the mentioned defects will contribute to lineshift and/or linebroadening.So, unraveling these effects seems me very difficult.
https://www.researchgate.net/profile/P_Mourik/publications?pubType=thesis
Dear Prof.P. Van Mourik
Really, unraveling these effects seems difficult. But, aren't there software programs or any other tools or techniques can analyze and appoint these crystalline defects.
Thanks
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