A Reitveld analysis could help you. You will need high quality data
that includes high angle scattering. GSAS is one program that could
help. There are excellent tutuorials available. Expgui is a
graphical interface for GSAS that also comes with excellent tutorials.
Contact me off list if you need help finding software.
David Lee, Ph.D
DTLee Scientific, llc
Sent from my iPhone
On Jul 24, 2009, at 2:10 AM, "ficu...@yahoo.com" <ficu...@yahoo.com>
wrote:
I use to do XRD from room temperature to High temperature and then
cooling again at room temperature.
I see there is constant going to the right for all the peaks and
also their intensities are decreasing, also the width of peaks is
becoming larger.
I would like to interpret those data and also to calculate the
particle size and the unit cell size (if there is a change with the
temperature).
It seems the phase is not change only the shits and the intensities
values.
I would like to calculate taking in account the data I have
(Intensity vs. 2*theta plot)
I found a formula but there is included the unit cells parameters
and I do not want to use that, because my goal is to find the unit
cell parameter using the recorded data for each set of data.
* How to interpret the constant moving of my intensities to the
right with each temperature step?
*How to interpret the constant decreasing in intensity of every peak
with each temperature step?
*How to interpret the constant increasing wide each peak with each
temperature step?
Could you help me to interpret those data or to guide to read
something on the web to help me with this?
Thank you!
