X-ray Diffraction from Shocked Crystals: Experiments and Predictions of Molecular Dynamics Simulations.

Rosolankova, K. ; Kalantar, D. H. ; Belak, J. F. ; Bringa, E. M. ; Caturla, M. J.

Technical Information Center Oak Ridge Tennessee

关键词: X-ray diffraction;    Crystals;    Compression;    Deformation;    Strains;   

RP-ID  :  DE200415006467

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

When a crystal is subjected to shock compression beyond its Hugoniot Elastic Limit (HEL), the deformation it undergoes is composed of elastic and plastic strain components. In situ time-dependent X-ray diffraction, which allows direct measurement of lattice spacings, can be used to investigate such phenomena. This paper presents recent experimental results of X-ray diffraction from shocked fcc crystals. Comparison is made between experimental data and simulated X-ray diffraction using a post-processor to Molecular Dynamics (MD) simulations of shocked fcc crystals.