Dubrovinskaia Natalia, Dubrovinsky Leonid, Solozhenko Vladimir L
Mineralphysik und Strukturforschung, Mineralogisches Institut, Universität Heidelberg, 69120 Heidelberg, Germany.
Science. 2007 Dec 7;318(5856):1550; author reply 1550. doi: 10.1126/science.1147650.
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.
钟等人（《报告》，2007年4月20日，第436页）报道了在常压下合成超硬二硼化铼（ReB₂）。我们发现，45年前首次在常压下合成的ReB₂并非超硬材料。再加上铼的成本高昂，这使得ReB₂大规模工业应用的前景存疑。
