> If you want it, it's texture. If you don't want it, it's preferred
> orientation!
Preferred orientation is what you get with X-rays; neutrons are good for
measuring texture :-)
Seriously, "texture" is a term best applied to solid materials, where
crystallites have preferred orientation due to the way the solid was
formed or worked; texture can also be associated with strain broadening.
Preferred orientation can also occur due to the way crystallites in
powdered materials stack together because of their morphology (eg plates
or needles), and is particularly difficult with small samples and
particular sample geometries. Preferred orientation can also be associated
with granularity (necessarily poor powder average).
Interesting to see which topics generate the most heat, if not light
(which are similarly related :-)
Alan.
______________________________________________
Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
<[EMAIL PROTECTED]> +33.476.98.41.68
http://www.NeutronOptics.com/hewat
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