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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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    Nucleation of amorphous shear bands at nanotwins in boron suboxide 

    An, Qi; Reddy, K. Madhav; Qian, Jin; Hemker, Kevin J.; Chen, Ming-Wei; Goddard III, William A. (Nature Research, 2016)
    The roles of grain boundaries and twin boundaries in mechanical properties are well understood for metals and alloys. However, for covalent solids, their roles in deformation response to applied stress are not established. ...