Nanoscale view of shock-wave splitting in diamond

被引：0
|
作者：
S. V. Zybin
M. L. Elert
C. T. White
机构：
[1] The George Washington University,the Department of Chemistry
[2] United States Naval Academy,the Chemistry Department
[3] the Naval Research Laboratory,undefined
来源：
Metallurgical and Materials Transactions A | 2004年 / 35卷
关键词：
Shock Wave; Material Transaction; Shock Front; Shock Compression; Naval Research Laboratory;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Molecular dynamics (MD) simulations of shock wave propagation in the 〈110〉 crystallographic direction of diamond were carried out using a reactive empirical bond order potential. A split two-wave shock structure due to a lattice transformation is observed above a piston velocity threshold of up ≈ 1.8 km/s corresponding to the Hugoniot elastic limit of 125 ± 15 GPa. This transition is triggered while the temperature increase in the leading shock remains negligibly small in comparison to the melting temperature of diamond and is limited to moderate shock strengths.
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页码：2647 / 2650
页数：3
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