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| structuri celulare | |||
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It is a single-layer, two-dimentional material containing layers of carbon forming a six-membered ring honeycomb structure. (Over the years, honeycomb structures have been widely used in aerospace, defence, automotive, architecture, biomedicine and other fields due to their excellent combination of lightweight, energy absorption, and high specific stiffness/strength.  sciencedirect.com silver_glepha) | |||
