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    Nanotwinned Boron Suboxide (B6O): New Ground State of B6O 

    An, Qi; Reddy, K. Madhav; Dong, Huafeng; Chen, Ming-Wei; Oganov, Artem R.; Goddard III, William A. (American Chemical Society, 2016)
    Nanotwinned structures in superhard ceramics rhombohedral boron suboxide (R-B6O) have been examined using a combination of transmission electron microscopy (TEM) and quantum mechanics (QM). QM predicts negative relative ...
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    Superstrength through nanotwinning 

    An, Qi; Goddard III, William A.; Xie, Kelvin Y.; Sim, Gi-dong; Hemker, Kevin J.; Munhollon, Tyler; Toksoy, M. Fatih; Haber, Richard A. (American Chemical Society, 2016)
    The theoretical strength of a material is the minimum stress to deform or fracture the perfect single crystal material that has no defects. This theoretical strength is considered as an upper bound on the attainable strength ...