Fig. 1: Compressive strength as a function of grain size and twin thickness for ng-diamond and nt-diamond samples at 300 K under displacement-controlled compression with Tersoff potential.
a Compressive strength of ng-diamond as a function of d. Maximum compressive strength is achieved with an average d of ca. 8 nm. b Compressive strength of nt-diamond as a function of λ. The continuously increasing strength with decreasing λ down to the minimum value 0.618 nm is noteworthy. The lines are guide to the eyes.
