I am looking for insight regarding sample preparation (fiber form, not in powder) and analysis technique of XRD data. Any help is highly appreciated.
Thanks.
Dear Dr. Md. Saiful Hoque ,
the best measurements to perform XRD fiber diffraction were using an acquisition of area detector pattern and x-ray incidence perpendicular to fiber axis.
I suggest you also to have a look at the following paper:
-Two-dimensional Rietveld analysis of celluloses from higher plants
Carlos Driemeier
Cellulose, volume 21, pages1065–1073 (2014)
Available, as abstract, at: https://link.springer.com/article/10.1007/s10570-013-9995-2
Good luck and my best regards, Pierluigi Traverso.
Mr. Saiful Hoque,
In terms of sample preparation, you just have to make sure the fiber is perpendicular to x-ray beam, a flat surface would be desirable.
Regarding analysis parameters, it depends. If you intend to perform a phase quantification via Rietveld analysis, for example, you should increase the time of acquisition for each degree interval. Also, it would be beneficial if you employ small angle steps (for example, 0.02º at step).
Hope this was helpful and good luck.
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