On the hardness of a new boron phase, orthorhombic γ-B28
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- Solozhenko, V.L., Kurakevych, O.O. & Oganov, A.R. J. Superhard Mater. (2008) 30: 428. doi:10.3103/S1063457608060117
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Measurements of the hardness of a new high-pressure boron phase, orthorhombic γ-B28, are reported. According to the data obtained, γ-B28 has the highest hardness (∼ 50 GPa) of all known crystal-line modifications of boron.