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Meeting Materials Science & Technology 2020
Symposium Advances in Synthesis and Integration Methods for Enhanced Properties, and Applications in Emerging Nanomaterials
Presentation Title Critical Elastic Interactions that Govern Effective Mechanical Behavior of Defective hBN and Graphene
Author(s) Zubaer Hossain
On-Site Speaker (Planned) Zubaer Hossain
Abstract Scope Formation of vacancy defects is unavoidable during the fabrication of 2D materials such as graphene, hBN, WS2, or MoS2. It is commonly understood that defects substantially degrade the mechanical properties of materials, particularly their strength and toughness by increasing the intensity of the elastic field surrounding the defects. Nonetheless, the spatial coverage of the elastic fields within which enhanced activity can be expected is a subject matter of active research. In this talk, we will present the existence of a critical separation distance beyond which the elastic interactions between a pair of monovacancy defects in graphene or hBN become inconsequential. Both the strength and toughness of the lattice containing a pair of `interacting monovacancies' are either higher or smaller than that of the lattice containing a pair of `non-interacting monovacancies.' Results also show the existence of a critical orientation-angle that significantly affects the strength and toughness of the 2D lattice.
Proceedings Inclusion? Undecided


Critical Elastic Interactions that Govern Effective Mechanical Behavior of Defective hBN and Graphene
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