Experimental and Actual Values of Self-Diffusion Coefficients
of Liquids in Porous Media

V. A. Tyurin and A. I. Maklakov

Kazan State University, ul. Kremlevskaya 18, Kazan, 420008 Tatarstan, Russia

Received February 27, 2007

Abstract—Self-diffusion coefficients D* of liquids in porous media, as measured by the pulsed-field gradient
NMR method, have been investigated as functions of the interval t₁ between the first and the second radio-fre-
quency pulses (the time of spin dephasing) in the “stimulated echo” pulsed procedure. Experimental D*(t₁)
dependences have been shown to be adequately described by the relations of the Fatkullin theory for moderate
and short correlation times of spin motion in an internal random Gaussian magnetic field. Actual self-diffusion
coefficients and some parameters of the porous media have been estimated.

DOI: 10.1134/S1061933X07060166

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.