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Energy Dissipation of Nanoporous MFI Zeolite Under Dynamic Crushing

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Nanoporous materials are emerging as a potential candidate for high-performance energy dissipation. Understanding the mechanical response upon crushing is important for designing nanoporous material structures with maximum energy dissipation. Using molecular dynamics simulations, we investigate the crushing behaviors of a MFI zeolite upon different loading rates, compression directions, and with different sample thickness. The dissipation mechanism is expected to result from the non-uniform collapse of nanopores and the spread of the thus formed densification region through the structure. The results show that the loading along the tortuous nanopore path ([001]-orientation) may maximize the energy dissipation. Strong loading rate effect is observed which couples with orientation dependence, yet the effect of thickness is relatively minor.
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Keywords: ENERGY DISSIPATION; MOLECULAR DYNAMICS SIMULATION; NANOPOROUS MATERIAL

Document Type: Research Article

Publication date: May 1, 2011

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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