Impedance method for measuring shear elasticity of liquids | Научно-инновационный портал СФУ

Impedance method for measuring shear elasticity of liquids

Тип публикации: статья из журнала

Год издания: 2017

Аннотация: Experimental results of studying low-frequency (74 kHz) shear elasticity of polymer liquids by the impedance method (analogous to the Mason method) are presented. A free-volume thick liquid layer is placed on the horizontal surface of a piezoelectric quartz crystal with dimensions 34.7 x 12 x 5.5 cm. The latter performs tangential vibrations at resonance frequency. The liquid layer experiences shear strain, and shear waves should propagate in it. From the theory of the method, it follows that, with an increase in the layer thickness, both real and imaginary resonance frequency shifts should exhibit damped oscillations and tend to limiting values. For the liquids under study, the imaginary frequency shift far exceeds the real one, which testifies to the presence of bulk shear elasticity.

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Издание

Журнал: Acoustical Physics

Номера страниц: 642-644

Авторы

  • Badmaev B. B. (Institute of Physical Materials Science, Siberian Department, Russian Academy of Sciences)
  • Dembelova T. S. (Institute of Physical Materials Science, Siberian Department, Russian Academy of Sciences)
  • Damdinov B. B. (Institute of Physical Materials Science, Siberian Department, Russian Academy of Sciences; Buryat State University)
  • Gulgenov C. Z. (Institute of Physical Materials Science, Siberian Department, Russian Academy of Sciences)

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