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- Title
Study of the low stress plasticity in single-crystal MgO by nanoindentation and atomic force microscopy.
- Authors
Tromas, C.; Girard, J. C.; Audurier, V.; Woirgard, J.
- Abstract
Berkovich nanoindentations have been performed at ambient temperature with a new apparatus on (001) cleaved surfaces of single-crystal Magnesium Oxide (MgO). Rosette slip lines pattern has been observed at a nanometric scale by Atomic Force Microscope. Moreover, the load-displacement curves present particular features such as pop-in, which has been linked to the AFM surface topography observations. Finally, we show that the combination of a new nanoindentation apparatus and an Atomic Force Microscope allows to study the very early stages of the plastic deformation during a nanoindentation in terms of individual dislocations.
- Subjects
MAGNESIUM oxide; ATOMIC force microscopy; DEFORMATIONS (Mechanics); HARDNESS; STRAINS & stresses (Mechanics)
- Publication
Journal of Materials Science, 1999, Vol 34, Issue 21, p5337
- ISSN
0022-2461
- Publication type
Academic Journal
- DOI
10.1023/A:1004705206482