ABSTRACT

Nanoindentation is now proven to be a powerful method for elucidating mechanical properties at the nanoscale level comparable to the mean grain size of ceramic materials (Chapter 6). So, the objective of the present chapter was to evaluate the micromechanical properties, e.g., nanohardness (H) and Young’s modulus (E), of the alumina fragments recovered after the shock experiments by the nanoindentation technique and compare these results with those obtained for the as-prepared alumina of about 10 μm grain size. Here, the shock-recovered alumina samples had the identical processing history as that of the as-prepared alumina samples. The details of the experimental methods have already been given in Chapter 9.