Strength of synthetic diamonds under tensile stresses produced by picosecond laser action
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-01-01 |
| Journal | Journal of Applied Mechanics and Technical Physics |
| Authors | S. A. Abrosimov, A. P. Bazhulin, A. P. Bolshakov, Š. Š. ŠŠ¾Š½Š¾Š², I. K. Krasiuk |
| Institutions | Russian Academy of Sciences, National Research Nuclear University MEPhI |
| Citations | 6 |
Abstract
Section titled āAbstractāResults of an experimental-theoretical study of spallation in synthetic diamonds are presented. In this study, data were first obtained on dynamic tensile strength of poly- and singlecrystal diamond samples at mechanical loads of up to 0.34 TPa and strain rates of 10-100 Āµsā1. Shock-wave loading was performed by 70 ps laser pulses on a Kamerton-T facility using a Nd:glass laser (second harmonics Ī» = 527 nm, pulse energy of up to ā3 J) at intensities of ā8 TW/cm2. The obtained maximal value of the spall strength ā16.4 GPa is 24% of the theoretical ultimate strength of diamond. Raman scattering experiments showed that a small amount of diamond was graphitized in the spall area on the backside of the sample.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 1996 - Shock-Wave Phenomena in Condensed Media
- 1966 - Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena