Mechanical properties of various two-dimensional silicon carbide sheets: An atomistic study
Autor: | Minh-Quy Le, Danh-Truong Nguyen |
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Rok vydání: | 2016 |
Předmět: |
inorganic chemicals
Materials science Silicon technology industry and agriculture Modulus chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Stress (mechanics) stomatognathic diseases chemistry.chemical_compound Molecular dynamics chemistry 0103 physical sciences Silicon carbide Fracture (geology) General Materials Science Electrical and Electronic Engineering Composite material 010306 general physics 0210 nano-technology Anisotropy Dispersion (chemistry) |
Zdroj: | Superlattices and Microstructures. 98:102-115 |
ISSN: | 0749-6036 |
Popis: | We investigate through molecular dynamics finite element method with Tersoff potential the mechanical properties of 13 SimCn sheets under uniaxial tension in the armchair and zigzag directions. It is found that the presence and dispersion of silicon atoms in SimCn sheets affect strongly the mechanical properties and the anisotropy of these sheets. The Young's modulus and fracture stress of the SimCn sheet decrease in general when the silicon concentration increases from 0 to 0.2. In contrast, the mechanical properties (Young's modulus, fracture stress, and fracture strain) increase slightly when the silicon concentration increases from 0.3 to 0.5 due to an increase of the degree of dispersion of silicon atoms in the SimCn sheet. The mechanical properties of the sheet are relatively high when the silicon concentration is low or silicon atoms are well dispersed. |
Databáze: | OpenAIRE |
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