Supreme shear modulus predicted in the monocarbide system: the Rex W1–x C alloy

Supreme shear modulus predicted in the monocarbide system: the Rex W1–x C alloy
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DOI：
10.1002/pssr.200903283
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发表时间：
2009-11
期刊：
physica status solidi (RRL) – Rapid Research Letters
影响因子：
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通讯作者：
Xinyu Zhang;Zhouwen Chen;C. Fan;M. Ma;Q. Jing;Riping Liu
Xinyu Zhang;Zhouwen Chen;C. Fan;M. Ma;Q. Jing;Riping Liu
中科院分区：
其他
文献类型：
--
作者：
Xinyu Zhang;Zhouwen Chen;C. Fan;M. Ma;Q. Jing;Riping Liu

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本文研究了WC结构雷克斯W_（1-x）C合金的能量、力学和电学性能随成分的变化。它已被证明，WC的剪切模量可以通过与少量的Re合金化而增强，在x = 0.23时达到311 GPa的最大剪切模量。所设计的合金在能量上是稳定的，并且可以预期是潜在的极硬过渡金属一碳化物，这归因于相对于WC具有调制价电子浓度的强金属-准金属相互作用。（© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA，魏因海姆）
The energetic, mechanical and electronic properties as a function of composition for Rex W1–x C alloys in the WC structure have been investigated. It has been demonstrated that the shear modulus of WC can be enhanced by alloying with a small amount of Re, to a maximum shear modulus of 311 GPa at x = 0.23. The designed alloy is energetically stable and could be expected to be a potential extremely hard transition‐metal monocarbide, which is attributed to the strong metal–metalloid interaction with modulated valence electron concentration with respect to WC. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)