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Application of Position Sensitive Detectors for Neutron Diffraction Texture Analysis of Hematite Ore

Published online by Cambridge University Press:  06 March 2019

G. Will ,
P. Merz ,
W. Schäfer  and
M. Dahms
G. Will
Affiliation:
Mineralogical Institute, University Bonn, Poppelsdorfer SchloB D-5300 Bonn, West Germany
P. Merz
Affiliation:
Mineralogical Institute, University Bonn, Poppelsdorfer SchloB D-5300 Bonn, West Germany
W. Schäfer
Affiliation:
Mineralogical Institute, University Bonn, Poppelsdorfer SchloB D-5300 Bonn, West Germany
M. Dahms
Affiliation:
Forschungszentrum Geesthacht, D-2054 Geesthaclit, West Germany
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Extract

Texture means the orientation distribution of the many crystallites in a polycrystalline sample with respect to a reference system on the sample, for example the rolling direction in steel. Texture has to be distinguished from preferred orientation observed in laboratory-made powder samples. Preferred orientation is just a nuissance in the experiment and must be corrected in the ensuing analysis, for example by the formula given by March and published by Dollase Preferred orientation we find commonly in samples containing plate-like crystal flakes. This is again to be distinguished from a non-random particle distribution in the powder samples prepared for diffraction experiments. This effect is always present, also for example in NBS silicon, even if only to a. very small degree (see for example Will et. al). It must and can easily be corrected for in the final least-squares calculation.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 33: Thirty-Eighth Annual Conference on Applications of X-ray Analysis, July 31 - August 4, 1989 , 1989 , pp. 277 - 283
Copyright
Copyright © International Centre for Diffraction Data 1989

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References

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