Transmission electron microscopy study of quartz single crystals deformed at room temperature and atmospheric pressure by indentations
Open Access
- 1 January 1982
- journal article
- Published by EDP Sciences in Journal de Physique Lettres
- Vol. 43 (3) , 77-81
- https://doi.org/10.1051/jphyslet:0198200430307700
Abstract
Plastic deformation at room temperature of quartz single crystals has been carried out by means of microindentations. TEM observations of the indented zones clearly show that dislocations are nucleated and glide over a few microns under the high applied stress of the indentor. The following glide systems have been observed : < 1210 > { 1010 }, < 1210 > (0001) and [0001] { 1210 }. Furthermore planar defects parallel to { 1010 }, { 1011 } and (0001) are also observed. Their fringe contrast is coherent with Dauphiné twinsKeywords
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