The sample holder of our XRD was not spinning due to some fault in its motor, the data collected shows change in the intensity of the observed pattern as compared to the one obtained with sample holder spinning.
Q: Should a spinning sample holder carrying a metallic bulk sample take care of the preferred orientations in the sample?
A: No.
This is a common misunderstanding. A sample spinner will simply ensure that more regions of the sample will be exposed to the beam, so your counting statistics will improve, especially at higher angles where a fixed divergence slit will usually result in a fairly narrow irradiated area on the sample. This is a good thing, but it cannot "take care of" the texture, since if a plane is angled with respect to the sample surface plane such that it does not meet the Bragg condition, no in-plane rotation is going to change that. This is discussed (briefly) by David Bish in chapter 4 of Modern Powder Diffraction, Reviews in Minerology, vol 20; where he cites as a primary reference: Parrish and Huang, Advances in X-ray Analysis, vol.26, pp.35-44
Q: Should a spinning sample holder carrying a metallic bulk sample take care of the preferred orientations in the sample?
A: No.
This is a common misunderstanding. A sample spinner will simply ensure that more regions of the sample will be exposed to the beam, so your counting statistics will improve, especially at higher angles where a fixed divergence slit will usually result in a fairly narrow irradiated area on the sample. This is a good thing, but it cannot "take care of" the texture, since if a plane is angled with respect to the sample surface plane such that it does not meet the Bragg condition, no in-plane rotation is going to change that. This is discussed (briefly) by David Bish in chapter 4 of Modern Powder Diffraction, Reviews in Minerology, vol 20; where he cites as a primary reference: Parrish and Huang, Advances in X-ray Analysis, vol.26, pp.35-44
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