Atomistic simulation of brittle-to-ductile transition in silicon carbide embedded with nano-sized helium bubbles
Chenglong Pan,
Limin Zhang,
Weilin Jiang
et al.
Abstract:The tensile response of cubic silicon carbide (SiC) bulk containing cavities (voids and He bubbles) has been investigated using molecular dynamic simulations. The formation of cavities in SiC leads to a significant degradation in the mechanical properties of SiC with more influence on material fracture than initial elastic deformation. The brittle-to-ductile transition occurs in cavity-embedded SiC as the pressure in He bubbles increases. This is associated with the deformation mechanism that bond breaking at … Show more
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