Question: The plot below shows changing mechanical behaviour in an artificial nacre. Explain why we observe a toughness increase in the lamellar composite compared to the

The plot below shows changing mechanical behaviour in an artificial nacre. Explain why we observe a toughness
increase in the lamellar composite compared to the homogeneous nanocomposite, in terms of
toughening mechanisms. Next, explain why the toughness increases in the presence of grafted
nanoparticles compared to the non-grafted counterpart. Finally, explain why the toughness is
further increased in brick and mortar composites compared to lamellar composites, in terms of
toughening mechanisms.
 The plot below shows changing mechanical behaviour in an artificial nacre.

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