A. Taschin et al 2008 EPL 81 58003 doi:10.1209/0295-5075/81/58003
A. Taschin1,2, R. Cucini1,2, P. Bartolini1,2 and R. Torre1,2,3
Show affiliationsAcoustic-wave propagation in liquid-filled porous glasses has been studied by a heterodyne detected transient grating experiment. A test of the Biot theory is presented under two new regimes, namely, for a new frequency range up to 1.3 GHz and for porous media with nanometric scale heterogeneities. We show that the Biot theory describes the sound velocity data correctly, but does not account for the acoustic attenuation. We suggest that the acoustic damping is mainly due to the dissipation mechanisms intrinsic of the matrix and the liquid which are not accounted for in the theory.
78.47.jj Transient grating spectroscopy
43.20.Jr Velocity and attenuation of elastic and poroelastic waves
Issue 5 (March 2008)
Received 5 November 2007, accepted for publication 9 January 2008
Published 12 February 2008
A. Taschin et al 2008 EPL 81 58003
E Ben-Naim and P L Krapivsky J. Stat. Mech. (2005) L10002
Sanjib Sabhapandit et al J. Stat. Mech. (2008) L03001
M. L. Pumo et al 2009 ApJ 705 L138
Aurélien Crida et al 2009 ApJ 705 L148
K. S. Balasubramaniam et al. 2004 ApJ 606 1233
Antonino F. Lanza et al. 2001 ApJ 547 1116
Chyi-Lung Lin et al 2008 EPL 83 30002
Steven Soter 2006 The Astronomical Journal 132 2513
Luca Baiotti et al 2007 Class. Quantum Grav. 24 S187