Ultrasound attenuation and phase velocity of moderately concentrated silica suspensions
書誌事項
- 公開日
- 2019-03
- 資源種別
- journal article
- 権利情報
-
- https://www.elsevier.com/tdm/userlicense/1.0/
- https://www.elsevier.com/legal/tdmrep-license
- DOI
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- 10.1016/j.ultras.2018.10.010
- 公開者
- Elsevier BV
この論文をさがす
説明
Ultrasound attenuation coefficient and phase velocity of moderately concentrated suspensions of charged silica particles were measured as a function of frequency. The attenuation coefficients were found to be significantly smaller than the theoretical prediction, and such a difference did not appear in the neutral particle suspensions under the corresponding concentrations. In this study, we have investigated the acoustic spectra of silica particles with different particle sizes, concentrations as well as salt concentrations. It was revealed that the noticeable deviation from the theoretical estimation only appeared in the case of large particle sizes close to the wavelength of ultrasound, and could be circumvented by addition of small amount of salt to suppress the electrostatic interactions of the charged silica particles.
収録刊行物
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- Ultrasonics
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Ultrasonics 93 63-70, 2019-03
Elsevier BV
