Raman microspectroscopic characterization of amorphous silica plastic behavior

By A. Perriot, V. Martinez, L. Grosvalet, C. Martinet, B. Champagnon, D. Vandembroucq, E. Barthel. 2004

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Raman microspectroscopy was used to characterize amorphous silica plastic behavior. Using a correlation between Raman spectrum and density, a map of the local residual indentation-induced densification is obtained. The existence of a densification-induced hardening is also evidenced through a diamond anvil cell experiment. Such observations are not accounted for by the previously proposed hardening-free pressure-dependent yield criterion based on indentation curves. These results open the way to more accurate description of a constitutive law for amorphous silica.

Subfields: Biomedical Engineering, Materials Chemistry, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/461ba210bd74f8c481e9a21c4521c802e65daa08