Shock compression of single-crystal forsterite
نویسندگان
چکیده
منابع مشابه
Shock Compression of Single - Crystal Forsterite
Dynamic compression results are reported for single-crystal forsteritc loaded along the orthorhombic a and c axes to pressures from 130 to 165 GPa. Hugoniot states for the two axes are well described by a single curve offset to densities 0.15-0.20 g/cm 3 lower than earlier data for single-crystal forsteritc shocked along the b axis above 100 GPa. Earlier data of Syono et al. [ 1981a] show margi...
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Hugoniot equation of state measurements have been performed on pure synthetic single-crystal forsterite (Mg•SiO4) in the pressure range 70-160 GPa (0.7-1.6 Mbar). These and earlier data for polycrystalline forsterite are compared with theoretical Hugoniots for the assemblages 2MgO (rocksalt) + SiO: (stishovite) and MgO (rocksalt) + MgSiO8 (perovskite). The densities attained by single-crystal f...
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Forsterite (Mg2SiO4) is one of the major planetary materials, and its behavior under extreme conditions is important to understand the interior structure of large planets, such as super-Earths, and large-scale planetary impact events. Previous shock compression measurements of forsterite indicate that it may melt below 200 GPa, but these measurements did not go beyond 200 GPa. We report the sho...
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We present molecular dynamics simulations of shock-induced plasticity and spall damage in single crystal Ta described by a recently developed embedded-atom-method (EAM) potential and a volumedependent qEAM potential. We use impact or Hugoniotstat simulations to investigate the Hugoniots, deformation and spallation. Both EAM and qEAM are accurate in predicting, e.g., the Hugoniots and surfaces. ...
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Two shock wave experiments employing Lau• technique. The normal axis to the sample inclined mirrors have been carried out to surface of both crystals were very close to each determine the Hugoniot elastic limit (HEL), final other and inclined 15.4 ñ 0.6 ø from <111>, or 29.6 shock state at 191 and 217 GPa, and the post-shock ñ 0.6 ø from <110> in approximately the (110) state of diamond crystal...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 1983
ISSN: 0148-0227
DOI: 10.1029/jb088ib11p09500