Adel Maher Wahba

3 Questions 31 Answers 0 Followers

Questions related from Adel Maher Wahba

Could the particle size exhibited by TEM images be smaller than the crystallite size deduced from XRD analysis?

For the first time in my research, a quite smaller size of the prepared samples is exhibited by their HRTEM images, while the XRD estimations of the same samples show that the crystallite size is...

01 January 2020 9,744 5 View

Would anyone explain the non-symmetric appearance of an XRD peak at large diffraction angles?

In the XRD pattern of my samples, one-side broadening of XRD peaks, especially at larger diffraction angles were observed. I need to know the possible reason(s) for that behavior.

07 July 2019 4,897 4 View

How to know relative concentrations of phases in an XRD pattern?

Without using Rietveld software, is there a qualitative method to correlate the relative concentrations of two or three phases in a multi-phase nano-sized sample from their relative intensities in...

04 April 2018 8,214 2 View