新型铼氮化物。

Novel rhenium nitrides.

机构信息

Geowissenschaften, Goethe-Universität, Altenhöferallee 1, D-60438 Frankfurt a M, Germany.

出版信息

Phys Rev Lett. 2010 Aug 20;105(8):085504. doi: 10.1103/PhysRevLett.105.085504.

DOI:10.1103/PhysRevLett.105.085504

PMID:20868112

Abstract

We report the synthesis, structure, and properties of novel bulk rhenium nitrides, hexagonal Re2N, and Re3N. Both phases have very high bulk moduli of >400 GPa, similar to the most incompressible binary transition-metal (TM) carbides and nitrides found to date. However, in contrast to other incompressible TM carbides and nitrides, Re3N is better placed for potential technological applications, as it can be formed at relatively moderate pressures (13-16 GPa) and temperatures (1600-2400 K).

摘要

我们报告了新型块状铼氮化物，六方 Re2N 和 Re3N 的合成、结构和性质。这两种相的体弹模量都非常高，超过 400 GPa，与迄今为止发现的最不可压缩的二元过渡金属（TM）碳化物和氮化物相似。然而，与其他不可压缩的 TM 碳化物和氮化物不同的是，Re3N 更适合潜在的技术应用，因为它可以在相对适中的压力（13-16 GPa）和温度（1600-2400 K）下形成。