Advanced Materials, Vol.21, No.42, 4284-4284, 2009
Shear Modulus of Polycrystalline Rhenium Diboride Determined from Surface Brillouin Spectroscopy
Surface Brillouin specotroscopy of a densified powder compact of rhenium diboride (see scanning electron microscopy image) results in a determined shear modulus of 223 GPa. This value is comparable to the shear modulus of c-BC2N and provides evidence for the superhard nature of ReB2.