Shock compression of quartz in the high-pressure fluid regime

The Hugoniot of quartz has been measured using laser-driven shock waves with pressures from 2 to 15 Mbars. Within this pressure range silica transforms from a liquid near melt into a dense plasma. Results are in good agreement with previous studies in part of this range performed using explosive- and nuclear-driven shocks indicating the absence of time-dependent effects for time scales between several hundred picoseconds and several hundred microseconds. These data combined with earlier data at lower pressures clearly show the increasing compressibility of silica as it transitions from solid to liquid to dense plasma regimes.

[1]  G. Zimmerman,et al.  A new quotidian equation of state (QEOS) for hot dense matter , 1988 .

[2]  Gregory A. Lyzenga,et al.  Shock temperatures of SiO2 and their geophysical implications , 1983 .

[3]  Andrew G. Glen,et al.  APPL , 2001 .

[4]  Marcus D. Knudson,et al.  Near-absolute Hugoniot measurements in aluminum to 500 GPa using a magnetically accelerated flyer plate technique , 2003 .

[5]  T. Lay,et al.  Partial melting in a thermo-chemical boundary layer at the base of the mantle , 2004 .

[6]  S. Marsh.  Lasl Shock Hugoniot Data , 1980 .

[7]  R. Trunin,et al.  Shock Compression of Condensed Materials , 1998 .

[8]  Thorne Lay,et al.  The core–mantle boundary layer and deep Earth dynamics , 1998, Nature.

[9]  R. Jeanloz,et al.  Spectroscopic Evidence for Pressure-Induced Coordination Changes in Silicate Glasses and Melts , 1988, Science.

[10]  S. J. Moon,et al.  Properties of fluid deuterium under double-shock compression to several Mbar , 2004 .

[11]  David A. Young,et al.  A new global equation of state model for hot, dense matter , 1995 .

[12]  Remo Guidieri.  Res , 1995, RES: Anthropology and Aesthetics.

[13]  G. E. Duvall,et al.  Phase transitions under shock-wave loading , 1977 .

[14]  G. V. Simakov,et al.  Shock-wave compression of solid deuterium at a pressure of 120 GPa , 2003 .

[15]  Jerry Wackerle,et al.  Shock‐Wave Compression of Quartz , 1962 .

[16]  L. M. Barker,et al.  Laser interferometer for measuring high velocities of any reflecting surface , 1972 .

[17]  Colin N. Danson,et al.  Electronic conduction in shock-compressed water , 2004 .

[18]  R. Ahuja,et al.  Experimental and theoretical identification of a new high-pressure phase of silica , 1997, Nature.

[19]  M. Knudson,et al.  Adiabatic release measurements in aluminum from 240-to500-GPa states on the principal Hugoniot , 2005 .

[20]  S. P. Marsh,et al.  On the equation of state of stishovite , 1963 .

[21]  Gilbert W. Collins,et al.  Accurate measurement of laser-driven shock trajectories with velocity interferometry , 1998 .

[22]  Gilbert W. Collins,et al.  Shock-induced transformation of Al2O3 and LiF into semiconducting liquids. , 2003, Physical review letters.

[23]  Samuel A. Letzring,et al.  Initial performance results of the OMEGA laser system , 1997 .

[24]  Raymond Jeanloz,et al.  Equation of state of stishovite and interpretation of SiO2 shock‐compression data , 2003 .

[25]  G. Shen,et al.  Measurement of melting temperatures of some minerals under lower mantle pressures , 1995 .

[26]  M. Knudson,et al.  Use of a wave reverberation technique to infer the density compression of shocked liquid deuterium to 75 GPa. , 2003, Physical review letters.

[27]  G. V. Simakov,et al.  Shock compression of solid deuterium , 2002 .

[28]  S. P. Gill,et al.  Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena , 2002 .

[29]  R. Trunin,et al.  Shock compressibility of condensed materials in strong shock waves generated by underground nuclear explosions , 1994 .

[30]  Stephane Mazevet,et al.  Ab initio simulations of the electrical and optical properties of shock-compressed SiO 2 , 2004 .

[31]  T. Ahrens,et al.  Stishovite and its implications in geophysics: new results from shock-wave experiments and theoretical modeling , 2002 .

[32]  David K. Bradley,et al.  Line-imaging velocimeter for shock diagnostics at the OMEGA laser facility , 2004 .

[33]  M. Knudson,et al.  Equation of state measurements in liquid deuterium to 70 GPa. , 2001, Physical review letters.

[34]  M. Hanfland,et al.  Pressure-induced landau-type transition in stishovite , 1998, Science.

[35]  Georg Kresse,et al.  High Pressure Polymorphism in Silica , 1998 .