You can find some examples of quantitative analysis
for samples containing amorphous phase
in "quantitative phase analysis in semicrystalline
materials using the Rietveld method" J. Appl. Cryst.
(1998), 31,78-82, and
in "Scale factor in powder diffraction"
Acta Cryst. A (1998), A54, 219-224.
Best Wishes
Patrizia Canton
______________________________________________
Dr. Patrizia Canton
Dept. of Physical Chemistry
Via Torino 158
I-30170
Venezia-Mestre Italy
Phone +39-041-2908590
Fax +39-041-2578594
e-mail [EMAIL PROTECTED]
______________________________________________
On Wed, 21 Mar 2001, r. a. young wrote:
> At 11:52 3/20/2001 -03-30, Anthony Mannerbino wrote:
> >
> >>
> >> Hello,
> >> I am working with samples that contain an unknown amorphous phase,
> which
> >> I would like to quantify. Does anyone know of any publications that might
> >> discuss some methods or techniques that may be used to determine the
> unknown
> >> amorphous phase. I would like to try and use a method that introduces an
> >> internal standard but I am open to all ideas.
> >> Thanks,
> >> Anthony Manerbino
> >
>
> You can find an example of this in the most recent version of the DBWS
> distribution package (98007b) at:
> http://www.physics.gatech.edu/downloads/young/download_dbws.html
>
> You will see that the "scheme" is to have a digitized pattern of an amorphous
> material (presumably similar to yours, but also could be a pattern you
> collected of the amorphous material, IF you happen to have some on hand) and
> then to refine the scale factor for that pattern along with parameters of the
> crystalline materials you have in your model.
>
> Good luck and please let me know how it goes for you .
> Sincerely,
> Ray Young
>
