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B4C layer alternating

To obtain what we consider to be the best interfacial structure of the (B4C)–(B6O) composite, we constructed a laminated structure with each B4C layer alternating with a B6O layer along the [100] direction. In this laminated structure, both icosahedral clusters (B12)2– and (B11Cp)1– obtain electrons from chain atoms to provide 26 skeletal electrons, satisfying Wade’s rule. In addition, both the (O)(O)2+ chain and the (C–B–C)1+ chain connect to three (B12)2– and to three (B11Cp)1–. After structure optimization, the QM finds that the linear (C–B–C)1+ chains bend to an angle of 173.5° concerning the (B12)2– icosahedra due to interactions of the C–B–C chains with the adjacent icosahedra. The predicted lattice parameters for the laminated structure are a = 10.37 Å, b = 5.18 Å, c = 5.11 Å, α = 64.47°, β = 64.59°, and γ = 64.12°, leading to a density of 2.56 g/cm3, which can be compared to densities of 2.52 and 2.65 g/cm3 for B4C and B6O, respectively. Compression plays an indispensable role in the failure behavior under hypervelocity impact. However, shear deformation is the main mechanism for failure in B4C. (12-14) To consider compression effects in shear deformations while relating them to real physical processes, we calculated the biaxial shear deformation that mimicked the indentation conditions for a Vickers indenter and applied this to the laminated structure along the most plausible slip system (001)/[100]. If you are looking for high quality, high purity and cost-effective Boron carbide, or if you require the latest price of Boron carbide, please feel free to email contact mis-asia.

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