Abstract
Single-crystal magnesium oxide (MgO) samples were ramp compressed to above 200 GPa pressure at the Omega laser facility. Multi-stepped MgO targets were prepared using lithography and wet etching techniques. Free surface velocities of ramp-compressed MgO were measured with a VISAR. The sound velocity and stress-density response were determined using an iterative Lagrangian analysis. The measured equation of state is consistent with expectations from previous shock and static data as well as with a recent X-ray diffraction measurement under ramp loading. The peak elastic stresses observed in our samples have amplitudes of 3-5.5 GPa, decreasing with propagation distance.
| Original language | English (US) |
|---|---|
| Article number | 062002 |
| Journal | Journal of Physics: Conference Series |
| Volume | 500 |
| Issue number | PART 6 |
| DOIs | |
| State | Published - 2014 |
| Event | 18th Biennial Int. Conf. of the APS Topical Group on Shock Compression of Condensed Matter, APS-SCCM 2013 in Conjunction with the 24th Biennial Int. Conf. of the Int. Association for the Advancement of High Pressure Science and Technol., AIRAPT 2013 - Seattle, WA, United States Duration: Jul 7 2013 → Jul 12 2013 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy