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Dubrovinskaia, Natalia ; Dubrovinsky, Leonid ; Solozhenko, Vladimir L.:
Comment on "Synthesis of Ultra-Incompressible Superhard Rhenium Diboride at Ambient Pressure".
In: Science.
Bd. 318
(2007)
Heft 5856
.
- S. 1550.
ISSN 1095-9203
DOI: https://doi.org/10.1126/science.1147650
Abstract
Chung et al. (Reports, 20 April 2007, p. 436) reported the synthesis of superhard rhenium diboride (ReB₂) at ambient pressure. We show that ReB₂, first synthesized at ambient pressure 45 years ago, is not a superhard material. Together with the high cost of Re, this makes the prospect for large-scale industrial applications of ReB₂ doubtful.