X-ray study of the orientational order of a concentrated dispersion of kaolinite under flow

Diffraction with high‐energy X‐rays is used to determine the orientational alignment of kaolinite particles dispersed in water as they flow down a pipe. Angle‐dispersive and energy‐dispersive diffraction methods are compared. Detailed studies of samples as thick as 1 cm were possible using energy‐di...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied crystallography 2001-10, Vol.34 (5), p.573-579
Main Authors: Barè, Simona, Cockcroft, Jeremy K., Colston, Sally L., Jupe, Andrew C., Rennie, Adrian R.
Format: Article
Language:English
Subjects:
angle-dispersive diffraction
colloidal dispersion
Earth sciences
Earth, ocean, space
energy-dispersive diffraction
Exact sciences and technology
kaolinite
Mineralogy
orientational order
particle flow
Silicates
tomography
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Diffraction with high‐energy X‐rays is used to determine the orientational alignment of kaolinite particles dispersed in water as they flow down a pipe. Angle‐dispersive and energy‐dispersive diffraction methods are compared. Detailed studies of samples as thick as 1 cm were possible using energy‐dispersive diffraction. A tomographic technique with the sample scanned and rotated in the beam allows maps of the alignment to be determined. The alignment across a pipe of rectangular section was determined. A strong effect caused by the walls was observed, the plate‐like particles tending to lie parallel to the wall near the boundary of the pipe.
ISSN:1600-5767
0021-8898
1600-5767
DOI:10.1107/S0021889801009530