Dear Tony,
diffraction intensity are sensible to volume fractions, not weight
percent. What you see in the Rietveld formulas are weight fractions
because they convert the scale parameter (in which there is the
volume fraction) into weight fractions using the density (the ZMV
factor containing number of molecules, molecular weight and cell
volume, a way to get the density taking into account the scale factor
contains also a squared cell volume at the denominator).
So to get volume fraction it's more easy as you only do:
vol % phase i = (scale factor phase i) / Sum(all phases scale factors)
no density involved.
Best regards,
Luca Lutterotti
On Mar 10, 2007, at 11:52 PM, Mr. Tony Raftery wrote:
Guys,
can anyone send me description (or reference) for the conversion of
weight percent to volume percent for a (solid) mixture - volume
percent is favored by metallurgists (and others).
thanks in advance,
Tony Raftery
Tony Raftery
Senior Technologist
AEMF & XAF, R Block
Faculty of Science, GP
Queensland University of Technology
c/- AEMF, R Block
Gardens Point Road, Brisbane, 4000 (or)
GPO Box 2434
Brisbane 4001 AUSTRALIA
ph +61 7 3138 2271
fax +61 7 3138 5100
email [EMAIL PROTECTED]
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