Ultrasonic wave velocity in the restructuring of disperse media


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The ultrasonic wave velocities in the restructuring of disperse media were measured using interference and pulsed techniques and the coefficient of reflection in suspensions of starch, Al2O3, and SiO2 particles, glass bulbs, their porous sediments, and composites of Fe3O4 particles in 10% gelatin aqueous solution at a frequency of 3 MHz. The experiments showed alternating variation in the concentration velocity coefficient during the transition of the dispersed phase concentration from the subpercolation to percolation region. The minimum ultrasonic wave velocity in the region of discrete clusters correlates with the ratio between the particle and matrix densities. The results obtained are explained using the Isakovich, Chaban, Rytov, Biot, Hausdorff, and other theories.

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I. Koltsova

St. Petersburg State University

Email: a.s.khomutova@gmail.com
俄罗斯联邦, Ul’yanovskaya ul. 1, Petrodvorets, St. Petersburg, 198504

A. Khomutova

St. Petersburg State University

编辑信件的主要联系方式.
Email: a.s.khomutova@gmail.com
俄罗斯联邦, Ul’yanovskaya ul. 1, Petrodvorets, St. Petersburg, 198504

M. Deinega

St. Petersburg State University

Email: a.s.khomutova@gmail.com
俄罗斯联邦, Ul’yanovskaya ul. 1, Petrodvorets, St. Petersburg, 198504

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