Open AccessLow-frequency (105 Hz) shear modulus of nanosuspension
Author(s) -
Б. Б. Бадмаев,
Т. С. Дембелова,
Д. Н. Макарова,
S. A. Bal’zhinov,
E.D. Vershinina
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1198/1/012001
Subject(s) - shear modulus , suspension (topology) , materials science , shear (geology) , shear waves , ultrasonic sensor , modulus , dissipation factor , colloid , tangent , resonance (particle physics) , optics , composite material , acoustics , physics , chemistry , mathematics , geometry , dielectric , atomic physics , optoelectronics , homotopy , pure mathematics
The low-frequency shear wave propagation in a suspension of silica nanoparticles in a polyethylsiloxane liquid was studied. The shear wave length was measured on ultrasonic interferometer, and it is equal to 55 μm. The value of the tangent of the mechanical losses angle is determined to be 0.18. These parameters were used to calculate the shear modulus of the investigated colloidal suspension; its value is 0.15‒10 5 Pa. The results obtained are in quite agreement with the data obtained by another way of the acoustic resonance method.