X-ray Diffraction Techniques
AimsBefore you startIntroductionExperimental mattersBragg′s lawSingle crystal diffractionDetermining lattice parameters accuratelyRelationship between crystalline structure and X-ray dataPowder diffractionPhase identificationOriented (or textured) samplesSummaryQuestionsGoing furtherTLP creditsTLP contentsShow all contentViewing and downloading resourcesAbout the TLPsTerms of useFeedbackCredits Print this page
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Oriented (or textured) samples
These can be considered as intermediate between single crystal and powder samples. In a diffractometer scan the relative intensities of the peaks are intermediate between those of a single crystal and a powder. The change in relative intensities may indicate the orientation of the sample. This can be observed in the following simulation:
In a complementary manner, orientation can be measured by recording how a reflection is spread at constant 2θ. An unoriented powder has rings of constant intensity, while an oriented sample has an arc or sharp spot.
It is sometimes helpful to consider oriented samples in reciprocal space.