Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2004

Аннотация: An experimental study of the shear parameters of viscoelastic liquids is carried out by the acoustic resonance method based on the changes in the natural frequency and Q factor of a piezoelectric quartz resonator. The liquid to be studied is placed between a stationary quartz strap and the piezoelectric quartz crystal vibrating at the resonance frequency. For a set of drilling muds, the values of the real and imaginary shear moduli are obtained at a frequency of 74 kHz. The measurements are performed with a liquid layer thickness much smaller than the shear wavelength. It is shown that the shear modulus decreases with increasing strain amplitude. A cluster model based on the Isakovich-Chaban nonlocal diffusion theory is proposed for explaining the low-frequency viscoelastic relaxation process.

Журнал: Acoustical physics

Выпуск журнала: Vol. 50, № 2

Номера страниц: 121-125

ISSN журнала: 10637710

• Badmaev B. B. (Department of Physical Problems, Buryat Scientific Center, Russian Academy of Sciences)
• Damdinov B. B. (Department of Physical Problems, Buryat Scientific Center, Russian Academy of Sciences; Andreev Acoustics Institute, Russian Academy of Sciences)
• Sanditov D. S. (Department of Physical Problems, Buryat Scientific Center, Russian Academy of Sciences)

• Web of Science Core Collection
• Scopus