This is diferent from nanosized polycrystalline materials
that undergo grain deformation from originally contained
stress concentration zones such as the triple junction of grain boundaries. On the contrary, when the crystal vol- ume fraction is high (Fig. 4 (ii)), although the stress distri- bution in the particle is almost uniform in the elastic range (Fig. 4 (ii)(a)), it becomes inhomogeneous after the yield- ing in the amorphous phase (Fig. 4 (ii)(b)). The stress dis- tribution in the particle becomes significant after further deformation (Fig. 4 (ii)(c)), and then inside-particle plas- tic deformation begins. This is because, as deformation of the amorphous block advances, the amorphous layers between neighboring particles become thin and the neigh- boring particle distance becomes very short, resulting in stress concentration around the proximal point of parti- cles. Debonding at the amorphous-crystal interface was not confirmed even after large deformation.
3. 3 Internal structure change in crystal phase
Figure 5 shows the defect distribution in the crystal particle. The local structures were analyzed by common