Sirous Khabbaz

4 Questions 4 Answers 0 Followers

Questions related from Sirous Khabbaz

In Rietveld structure refinement after refining the lattice constants and Beq values, shall I fix them and then proceed to atomic position refinement?

During Rietveld structure refinement, first, I refine the lattice parameters and the Beq values at the same time. I also need to refine the atomic coordinates in my structure. Shall I fix the...

08 April 2017 9,783 4 View

How can I determine the activation energy for crystal growth of one phase when a number of crystalline phases are formed upon heating?

I start with amorphous precursor of SrO-Al2O3 and upon heating to the temperature of interest, a number of crystalline phases are formed in addition to the phase that I am interested in. Using...

09 December 2016 936 4 View

How can one determine the accuracy of the thickness of a thin layer measured by ellipsometry technique?

I have measured a reduction in thickness for a thin film using the ellipsometry technique and I need to quantitatively show that the measured value is significant.

15 April 2016 1,702 5 View

Why do UV-Vis spectroscopy and DLS give different sizes for the same sample of colloidal nanoparticles?

12 January 2016 2,988 9 View