Session G2: Material Science I
10:30 AM–12:30 PM, Tuesday, June 26, 2007
Fairmont Orchid Hotel Room: Amphitheater
Chair: Chris Adams, Los Alamos National Laboratory
Abstract ID: BAPS.2007.SHOCK.G2.3
Abstract: G2.00003 : Shock compression properties of hard materials
11:00 AM–11:30 AM
Preview Abstract
MathJax On | Off 
Abstract 
Author:
Tsutomu Mashimo
(Kumamoto University)
Through the measurement of Hugoniot parameters, we can get useful information about high-pressure phase transition, equations of state (EOS), etc. of solids, without pressure calibration. We have performed the Hugoniot-measurement experiments on various kinds of hard materials of calcogenides, oxides, nitrides, borides by using a high time-resolution streak camera system (inclined-mirror method) to investigate the yielding property, phase transition and EOS. It was found that almost all brittle materials behave as an elasto-isotropic solid unlike metals (elasto-plastic solid), except a very few materials such as TiB$_{2}$. We observed the shock-induced phase transitions on ZnS, ZnSe, TiO$_{2}$, ZrO$_{2}$, Gd$_{3}$Ga$_{5}$O$_{12}$, AlN, B$_{4}$C, etc. Some oxide materials showed virtually incompressible EOS's in the high-pressure phase region. Here, the Hugoniot-compression data are reviewed, and the yielding property, phase transition and EOS of these hard materials are discussed. The applications for anvil materials, shock-resisted materials, etc. are also discussed.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.SHOCK.G2.3