ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Quartz particles from the Norwegian Lodalen clay and the Canadian St Jean Vianney clay have been examined by electron microscopy. The high-voltage electron microscope in particular allows the internal structure and the surface nature to be examined. Dislocation networks have been observed in the quartz particles and also Moiré patterns suggesting regions of structural deformation. The particles have a plate-like shape with a habit plane parallel to the basal plane which suggests that at small particle sizes (∼3 μm) a cleavage mechanism may operate in quartz. The edges of the particles appear to be heavily deformed and cracking fragmentation is apparent which may correspond to the deformed lattice region of Lidstrom. The observations cast some light on the origin of the sensitivity of the strength of such clays to disturbance.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00550455
Permalink