Best wishes
juergen
____________________________
Dr. Juergen Neubauer
Universitaet Erlangen
Lehrstuhl f|r Mineralogie
Schlossgarten 5a
91054 Erlangen
Germany
Tel. ..49 9131 853986
Fax ..49 9131 853734
email: jneubau@geol.uni-erlangen.de
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Von: Quirina Roode <ROODE@civen.civil.wits.ac.za>
An: rietveld_l@ill.fr
Betreff: QXRD--cement
Datum: Freitag, 28. August 1998 13:33
And also a 'goodness-of-fit' doesn't prove accuracy of quantitative
results. You may be overestimating one phase at the expense of
another--something that I have discovered is exactly what is indeed
happening.
The only direct verification is that of point counting, which
indeed does not come without its limitations, but the Rietveld method
applied on cements also has limitations. But fortunately these two
methods compensate very well for the limitations of the other.
Any further ideas on this discussion would be very interesting.
Best wishes,
Quirina
"You cannot prove anything right in science. You can only prove
something wrong."
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Quirina I. Roode
PhD student: Cement Chemistry
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Department of Civil Engineering
University of the Witwatersrand
P O Wits, 2050, Johannesburg
SOUTH AFRICA
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ROODE@civen.civil.wits.ac.za ( )
Tel: +27-(0)11-716-2478 (w) ) /
Fax: +27-(0)11-339-1762 (w) (_/
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