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

Study of the low stress plasticity in single-crystal MgO by nanoindentation and atomic force microscopy.

Tromas, C.; Girard, J. C.; Audurier, V.; Woirgard, J.